WO2006123872A1

WO2006123872A1 - Method of wireless contents broadcasting service and system for implementing the same

Info

Publication number: WO2006123872A1
Application number: PCT/KR2006/001763
Authority: WO
Inventors: Chang-Mo Kim
Original assignee: Chang-Mo Kim
Priority date: 2005-05-19
Filing date: 2006-05-11
Publication date: 2006-11-23

Abstract

Method and system for providing a contents broadcasting service using a wireless communication is provided. A transmission control station spreads and broadcasts plural contents data using contents identifying codes. A mobile station reversely spreads the broadcasted contents signal using a contents identifying code of contents selected by a user to output and extract corresponding contents data. If it is completely output, the mobile station transmits a mobile station identifying code and a contents identifying code to the transmission control station. The transmission control station spreads and broadcasts advertisement data using an advertisement identifying code together with contents. Then, the mobile station reversely spreads a broadcasted advertisement signal using a previously registered advertisement identifying code to extract and regenerate corresponding advertisement data. An advertisement regenerating frequency is accumulatively stored in the mobile station, and contents may be used freely if the advertisement regenerating frequency reaches a certain level.

Description

METHOD OF WIRELESS CONTENTS BROADCASTING SERVICE AND SYSTEM FOR IMPLEMENTING THE SAME

Technical Field

[1] The present invention relates to a contents service, and more particularly to method and system for providing a contents broadcasting service using a wireless communication. Background Art

[2] As well known in the art, there exist numerous music source service sites on a wired Internet. For example, Bugsmusic and MaxMP3 provide such music source service. These sites gives a music source service by means of a real-time streaming, not using a downloading method.

[3] An Internet user accesses the site and then configures a list of desired music sources. Then, the Internet user listens to music in a streaming manner. Such sites are very popularized to many Internet users since the users may selectively listen to desired music.

[4] A copyright infringement problem has been continuously proposed against a free music source streaming service using Internet. That is to say, if a music source is freely streamed, it is considered to infringe a right of a music source creator. Accordingly, a lawsuit is recently instituted by a Music Industry Association, and the music source service is changed to be charged at a fixed fee for each month due to mutual agreement.

[5] A radio is another medium for allowing a user to listen to music. However, the radio does not allow a user to listen to a selected music like the Internet. That is to say, users should listen to music as composed in the radio broadcasting station. Of course, most radio programs provide a music request service. However, it has a limitation in satisfying all broadcast listeners.

[6] The transmission of music sources through the radio program also has a room of discussion regarding copyright. However, at the present, there is no measure to check who, when and which music a user listens to. Thus, a radio broadcasting station solves the copyright problem by paying for a royalty in a bundle. The paid royalty is generally filled up using advertisement costs.

[7] Recently, a wireless Internet service is actively propagated and cellular phones having a MP3 function are widely used, so a music source service is commercially provided through the wireless Internet. However, in order to use a music source service through the wireless Internet, a user should access the wireless Internet, which is so cumbersome. Seeing the actual procedure of using a wireless Internet service, it takes much time in searching a desired service due to user interface and limited transmission rate. Thus, Internet users are improperly charged for the time consumed for such works.

[8] Meanwhile, satellite/terrestrial DMB (Digital Multimedia Broadcasting) is developed and scheduled for service in recent years. In addition, in the recent era, a person may listen to music during a moving state if he/she has a DMB receiving terminal since a music channel is provided in the DMB service. The music channel is forecasted to be a service based on music videos like an existing cable music broadcasting. However, the music source service using DMB still has a problem that it is a passive music source service like a radio. In addition, since the music channel gives a service focused on red-hot songs, there is a limit in variety of music. Disclosure of Invention Technical Problem

[9] Therefore, it is an object of the invention to propose a new music source service by which a user may listen to a desired music at any time and place without accessing a wireless Internet and also financial resources may be prepared for a royalty for copyright by means of exact charging for music source usage, and also to apply such a music source service to more fields of contents service such as moving pictures, moving or static images, electronic books, and game modules. Technical Solution

[10] In order to accomplish the above object, the present invention provides a method of wireless contents broadcasting service, which includes (a) a transmission control station spreading and broadcasting a plurality of contents data using different contents identifying codes that are mutually kept orthogonal; and (b) a mobile station (or, a fixed station) reversely spreading the broadcasted contents signal using a contents identifying code previously stored for a specific contents selected by a user so as to extract and output a corresponding contents data, wherein the contents identifying code used in spreading is identical to the contents identifying code used in reverse spreading.

[11] In one aspect of the invention, in the step (a), the transmission control station broadcasts n number of spread contents data at every broadcasting point of time that is repeated in a predetermined cycle.

[12] In another aspect of the invention, in the step (a), the transmission control station broadcasts n number of spread contents data in a way that each spread contents data is divided into the predetermined number of parts and then broadcasted over several times at every broadcasting point of time that is repeated in a predetermined cycle. [13] In still another aspect of the invention, in the step (a), the transmission control station broadcasts n number of spread contents data in a way that the n number of spread contents data are divided into the predetermined number of groups and then broadcasted over several times for each group at every broadcasting point of time that is repeated in a predetermined cycle.

[14] In the present invention, the step (b) includes: selecting contents using a contents search engine; storing the contents data extracted by reverse spreading into a buffer memory for buffering; and outputting the buffered contents data.

[15] Preferably, the present invention further includes: the mobile station transmitting a contents charging request including at least a mobile station identifying code and a contents identifying code to the transmission control station after the extracted contents data is completely output; and the transmission control station storing a charging detail including the mobile station identifying code, the contents identifying code and a charging date in a database.

[16] The present invention may further include: the transmission control station spreading and broadcasting advertisement data using different advertisement identifying codes that are mutually kept orthogonal; and the mobile station reversely spreading the broadcasted advertisement signal using an advertisement identifying code previously registered according to a request of the user so as to extract and regenerate a corresponding advertisement data.

[17] In this case, it is preferred that the mobile station accumulatively stores an advertisement regeneration number in a memory whenever the advertisement data is regenerated. In this case, the present invention may further include: the mobile station inquiring the user whether or not to pay the advertisement regeneration for a service fee of the output contents data after the extracted contents data is completely output; the mobile station setting a state of the contents into a charged state; and the mobile station reducing the advertisement regenerating number as much as a predetermined amount.

[18] Selectively, the present invention may further include: the transmission control station spreading and broadcasting a recent contents data using different contents identifying codes that are mutually kept orthogonal; and the mobile station reversely spreading the broadcasted contents signal using contents identifying codes according to a priority of registered recent contents, and then extracting and outputting a corresponding contents data in case it is determined that the contents requested by the user is not broadcasted.

[19] In this case, the recent contents are preferably output from a recent contents with a highest priority to a contents with a final priority with lowering the priority one by one.

[20] In the present invention, the step (b) may include: searching contents using a contents search engine; storing the contents data extracted through the reverse spreading into a buffer memory for buffering; outputting a sample of the contents data selected by the user among samples of contents data previously stored in the mobile station in parallel to the buffering; and outputting the buffered contents data after the sample output region.

[21] Preferably, the present invention further includes: the transmission control station broadcasting contents update data including an identifying code of contents to be updated, and title, composer (or, singer name) and field (or, genre) of the contents; and the mobile station receives the contents update data and reversely spreading the received contents update data using the previously registered contents update identifying code so as to update the registered contents database.

[22] Selectively, the contents update data may further include a contents data sample.

[23] In the present invention, the contents is information, data or file to be distributed individually. For example, the contents may be a music source, a moving picture, a kinetic image, a static image, an electronic book or a modularized game.

[24]

[25] In order to accomplish the above object, the present invention also provides a system for wireless contents broadcasting service, which includes a contents storage means for storing n number of contents data to be broadcasted, and a contents identifying code of each contents that distinguishes each contents and keeps orthogonal mutually; a transmission controls station for spreading and broadcasting the n number of contents data recorded in the contents storage means using a corresponding contents identifying code respectively; and a mobile station (or, a fixed station) including a contents database for recording an identifying code and details of each contents provided by the broadcasting service, and a contents output means for reversely spreading a contents signal broadcasted by reading the identifying code of a specific contents so as to extract and output the specific contents data when there is a request for outputting the specific contents selected from the contents database.

[26] In the present invention, the spread contents data may be transmitted from the transmission control station to the mobile station by means of CDMA (A type and B type including EVDO reversion), W-CDMA, OFDM (including all OFDMA methods such as OFDM-TDMA, OFDM-FDMA and OFDM-CDMA), or HSPDA. Brief Description of the Drawings

[27] These and other features, aspects, and advantages of preferred embodiments of the present invention will be more fully described in the following detailed description, taken accompanying drawings. In the drawings:

[28] FIG. 1 shows a wireless music source broadcasting service according to an embodiment of the present invention;

[29] FIG. 2 is a flowchart illustrating a charging process in the wireless music source broadcasting service according to the embodiment of the present invention; and

[30] FIG. 3 is a flowchart illustrating an advertisement regenerating process in the wireless music source broadcasting service according to the embodiment of the present invention.

Best Mode for Carrying Out the Invention

[31] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the description, it should be understood that the terms used in the specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation.

[32] Therefore, the description proposed herein is just a preferable example for the purpose of illustrations only, not intended to limit the scope of the invention, so it should be understood that other equivalents and modifications could be made thereto without departing from the spirit and scope of the invention.

[33] In an embodiment of the present invention, the kind of contents to be broadcasted is limited to a music source for the convenience of explanation. However, it should be understood that the present invention is not limited to such a specific kind of contents to be broadcasted.

[34] As shown in FIG. 1 , the system of the present invention includes a transmission control station 10 of a mobile communication network, which continuously and repeatedly broadcasts a plurality of music sources. For example, the transmission control station 10 broadcasts about 1000 music sources. Here, broadcasting a music source is defined that the transmission control station 10 continuously sends a plurality of music sources to the air regardless of a positive request of a user.

[35] For this purpose, the transmission control station 10 is mutually connected to a transmission means 20. Music sources to be broadcasted are recorded in a music source storage means 40 provided to the transmission control station 10. Or, the music sources to be broadcasted may also be transmitted from an external large-capacity music source storage server connected to the transmission control station 10. The music sources stored in the music source storage means 40 may be continuously added, updated or changed through a wire Internet. Such addition, updating or changing of music sources may also be made at all times using a portable storage medium, CD ROM or DVD ROM. [36] The music sources broadcasted by the transmission control station 10 are partially composed of red-hot music sources. In case the transmission control station 10 broadcasts 1000 music sources, 50 music sources may be composed of red-hot ballads or red-hot pop songs, among them. However, the present invention is not limited thereto.

[37] Each music source data broadcasted by the transmission control station 10 is spread and broadcasted by means of a music source identifying code, different from other data. In case the broadcasted music sources are partially composed of red-hot songs, the red-hot music sources are spread using the same music source identifying code though the red-hot music sources are changed. For example, when red-hot music sources from a first ranking to a fiftieth ranking are broadcasted, 50 music source identifying codes differently from each other are endowed to the music sources, and a music source of a specific ranking is spread using the same music source identifying code though the music source at that ranking is changed.

[38] In the present invention, the term 'spreading and broadcasting' a music source is defined that a convolution operation is conducted using a music source identifying code having a greater bits than the music source data so as to extract a music source data independently by means of 'reverse spreading' at a receiving side. Preferably, when music source data are spread, different music source data are spread by means of different music source identifying codes.

[39] While a music source data is transmitted to the air, a carrier wave for the spread music source data may also be modulated separately from the music source data spreading process.

[40] When the receiving side conducts the 'reverse spreading¹ for the music source data, a convolution operation is made for a music source data reaching the receiving side by using the same music source identifying source as being used for spreading the music source data. After the reverse spreading of the broadcasted music source data, it is possible to selectively extract a specific music source data though a plurality of music source data (spread) are broadcasted and reach the receiving side together.

[41] A music source identifying code used for spreading or reverse spreading of a music source data is a code of a predetermined length, composed of -1 and 1 (or, 0 and 1), and it is a regeneratable code row that keeps mutual orthogonality. Also, the music source identifying code has a nature similar to OVSF (Orthogonal Variable Spreading Factor) or PN (Pseudo Noise) code, called a code sequence or a spread code, which is capable of distinguishing data.

[42] The present invention is characterized in that each music source is spread using a music source identifying code different from others when the transmission control station 10 broadcasts a plurality of music source data, and the broadcasted music source data is reversely spread using the same music source identifying code as being used in spreading the music source data from the transmitting side when a receiving side restores the music source data. In addition, the present invention is not limited to which communication technique is used for transmitting the spread music source data from the transmitting side to the receiving side.

[43] Thus, when the transmission control station 10 spreads a music source data using a music source identifying code and then the spread music source data is broadcasted to the air through the transmission control station 10, various communication techniques, already known in the art or to be developed and put in the market in the future, may be applied.

[44] Communication techniques applicable in the present invention are CDMA (Code Division Multiple Access: A type and B type including EVDO reversion), W-CDMA, OFDM (Orthogonal Frequency Division Multiplexing (including all OFDMA methods such as OFDM-TDMA, OFDM-FDMA and OFDM-CDMA), HSPDA (High Speed Downlink Packet Access), and so on, and the present invention is not limited thereto.

[45] The transmission control station 10 broadcasts a plurality of music sources in the following three schemes.

[46] [47] < First Scheme > [48] The transmission control station 10 broadcasts the n number of music sources in total, from a music source 1 to a music source n, and the entire data of each music source are broadcasted at once at every broadcasting point of time as shown in the following table 1. This broadcasting using the first scheme is continuously repeated, and a difference between broadcasting points of time, namely a difference between a first point and a second point, is several or several ten D.

[49] Table 1

[50] [51] < Second Scheme > [52] The transmission control station 10 broadcasts the n number of music sources in total, from a music source 1 to a music source n, and the entire data of each music source are divisionally broadcasted little by little at every broadcasting point of time as shown in the following table 2. That is to say, several music sources are broadcasted, but each music source is finely divided and then broadcasted over several times. Table 2 shows the case that one music source is broadcasted over three times. Broadcasting using this second scheme is periodically repeated with a cycle from a first point to a third point, and a difference between broadcasting points of time, namely a difference between a first point and a second point, is several or several ten D.

[53] Table 2

[54] [55] < Third Scheme > [56] The transmission control station 10 broadcasts the n number of music sources in total, from a music source 1 to a music source n, and the n number of music sources are divided into a predetermined number of groups, and then each group is broadcasted in a bundle. The following table 3 shows the case that the n number of music sources are divided into three groups, in which music sources in a first group are broadcasted at once at a first point, music sources in a second group are broadcasted at once at a second point, and music sources in a third group are broadcasted at once at a third point. Broadcasting using this third scheme is continuously repeated with a cycle from the first point to the third point, and a difference between broadcasting points of time, namely a difference between a first point and a second point, is several or several ten D.

[57] Table 3

[58] [59] In the present invention, a music source data spread using the music source identifying code is broadcasted to all mobile communication regions controlled by the transmission control station 10. At this time, the spread music source data may be carrier-modulated according to a communication technique applied to the broadcasting.

[60] Meanwhile, as shown in FIG. 1, there may exist several transmission means 20 with respect to one transmission control station 10. In addition, the regions for broadcasting the music source data may be expanded as desired. Thus, the transmission control station 10 may be additionally installed as required. In case a plurality of transmission control stations 10 are provided, the music source data is preferably broadcasted to corresponding mobile communication service areas controlled by each transmission control station 10.

[61] Meanwhile, as a configuration corresponding to the transmission control station 10, there is a mobile station (or, a fixed station) 30 of a user. The mobile station (or, the fixed station) 30 is a mobile station personally possessed, which is understood to include a terminal capable of receiving a mobile network service using a secondary connection device such as PCMCIA, USB or IEEE- 1394. This configuration will be illustrated and described as a mobile station 30 in the folio wings, for convenience of explanation.

[62] Preferably, the mobile station 30 has a function of spread-spectrum multiple access.

This function is defined to reversely spread a broadcasted music source data, broadcasted by the transmission control station 10, using the music source identifying code already used in spreading the music source so as to selectively extract a specific music source data.

[63] In addition, the mobile station 30 has a communication chip set capable of receiving a music source data in correspondence to a communication technique that is applied when a transmission side broadcasts a spread music source data. This communication chip set includes a CDMA chip set, a W-CDMA chip set, an OFDM chip set, a HSDPA chip set, and so on. The mobile station 30 may be a cellular phone, a PDA, a digital set-top box for a vehicle (e.g., a navigator or a multimedia digital device loaded on the vehicle), and so on. However, the present invention is not limited thereto.

[64] The mobile station 30 includes a music source database 50 loaded on its own memory. This music source database 50 includes titles, genres, singers, music source identifying codes, distribution dates, charging flags, and broadcast flags for a plurality of music sources. In a selective example, the music source database 50 may further include a music source data sample for a heater of each music source (e.g., starting data for 10 seconds).

[65] In the present invention, each music source identifying code stored in the music source database 50 is identical to each music source identifying code used in the spreading process for broadcasting the music source. Thus, the set of music source identifying sources recorded in the music source database 50 are substantially identical to a set of music source identifying codes used in spreading the music source data.

[66] Here, the charging flag allows three kinds of flag designations. A first flag indicates that a charging process is completed, a second flag designates that a music source is regenerated but not still charged, and a third flag designates that regeneration is not yet made. In addition, the broadcast flag may designate two kinds of flags. One is that a music source is now under the broadcasting service, and the other is that the broadcasting service is not made, which is used for automatically requesting a broadcasting service.

[67] The music source database 50 is preferably loaded on a storage medium of the mobile station 30 when the mobile station 30 is launched. Here, the storage medium is preferably a nonvolatile memory, and a flash memory is preferred. However, it may be added to the mobile station 30 later by upgrading. Preferably, the music source database 50 may be upgraded using a wireless Internet, or by visiting an agency dealing the mobile station. More preferably, the music source database 50 may be also upgraded using the broadcasting of the present invention.

[68] That is to say, the transmission control station 10 continuously broadcasts a upgraded data using a predetermined upgrade spread code. Then, the mobile station 30 may reversely spread the broadcasted upgraded data using the same code as the upgrade spread code in order to extract the upgraded data, and then apply it to the music source database 50. At this time, the upgraded data may include titles, genres, singers, music source identifying codes, distribution dates, charging flags, and broadcast flags for the music sources. At this time, the flag value is set to a default value (a music source not charged but broadcasted). In a selective example, the upgraded data may further include a music source data sample for a head portion of the music source (for example, a portion for first 10 seconds). The set of information included in the upgraded data should be prepared as much as the number of music sources to be upgraded.

[69] The mobile station 30 includes a music source search engine 60 capable of searching a music source to be regenerated using its own music source database 50. This searching process is also possible by means of a combination of certain information recorded in the music source database 50. For example, this searching process may be conducted for music titles, genres, singers, music source identifying codes, distribution dates, whether or not to broadcast, and whether or not to charge. A user of the mobile station 30 may search and select a specific music source and request for regenerating the selected music source by using this music source search engine 60. Similarly to a common search engine, the music source search engine 60 gives a function of arranging a search result using search factors.

[70] The mobile station 30 includes a music source regenerating means 70 for regenerating a corresponding music source. If a regeneration request of a specific music source is received from the user, the music source regenerating means 70 reversely spreads all spread music source data reaching the mobile station 30. At this time, the used reverse spread code is an identifying code of a music source selected by the user. This music source identifying code is referred to from the music source database 50. Then, among the signals broadcasted to and reaching the mobile station 30 of the user, only a music source data spread by the same music source identifying code as the reverse spread code is selectively restored, and the other music source data are considered as noise and then removed. It follows a known spectrum spread communication principle, and it will be not explained in detail here. Meanwhile, according to the communication technique applied for broadcasting and transmitting a music source data spread from the transmitting side to the receiving side, a demodulating process of the received music source data may be executed prior to the reverse spreading of the music source data.

[71] If a specific music source data is restored as described above, the music source regenerating means 70 regenerates a music source using the restored music source data. The mobile station 30 includes a hardware memory having a buffer function for the purpose of regeneration of the music source. The restored music source data has a bit arrangement in a compressed form, so a buffer is required for temporarily storing the restored music source. In addition, the mobile station 30 includes an earphone connection terminal, an external speaker and so on in order to output the regenerated music source. The process for outputting the music source data as an actual sound by buffering after the music source data is restored by means of reverse spreading is well known in the art, so it will be not explained in detail here.

[72] Meanwhile, in a selective example of the present invention, the music source database 50 may further include a music source data sample for a head portion of each music source. At this time, the music source data sample may be utilized as follows. That is to say, in case that a music source data reaching the mobile station 30 is not corresponding to a head portion of a desired music source at the point that a user requests regeneration of a specific music source, or in case that the music source data is not suitable for instant regeneration due to buffering for a predetermined time though the head portion corresponds to a desired one, the music source regenerating means 70 instantly outputs a selected music source by using the music source data sample stored in the music source database 50, and then starts regeneration of the buffering-completed music source data after a sample regeneration region if the music source data sample is completely regenerated. For example, if a sample regeneration time for a music source data is 10 seconds, the buffering-completed music source data starts being regenerated after 10 seconds. Of course, the regeneration time for the music source data sample may be changed as desired. In this case, a music source may be instantly regenerated from the point that a user requests regeneration of the music source.

[73] As described later, if a music source is regenerated, a certain fee is charged, and the charging information is collected and managed by the transmission control station 10. Preferably, the charging process is conducted after the music source is completely regenerated.

[74] The music source regenerating means 70 included in the mobile station 30 gives an additional function of allowing a user to compose a music source list. That is to say, the user may compose a list of favorite music sources based on singers, dates, genres or the like by using the additional function. If the list is prepared, the user may conveniently regenerate a plurality of music sources as already designated by selecting only the list, without selecting many music sources one by one. The composed list is stored in a hardware memory of the mobile station 30.

[75] Meanwhile, the transmission control station 10 continuously and repeatedly broadcasts a predetermined number of advertisements. A method of broadcasting advertisements is substantially identical to any one of three music source broadcasting schemes described above. In this case, each advertisement is spread using an advertisement identifying code different from others. Here, the advertisement identifying code has the same features as the above-mentioned music source identifying code.

[76] The music source regenerating means 70 of the mobile station 30 supports a mode of regenerating an advertisement. In an advertisement regenerating mode, a user may regenerates an advertisement broadcasted from the transmission control station 10, and the user enjoys a benefit of regenerating a music source with no charge if the number of advertisement regenerations reaches a certain criterion. At this time, the criterion for free music source regeneration, namely the number of advertisement regenerations required for free regeneration of music source, may be freely determined as a matter of policy.

[77] The mobile station 30 stores an advertisement identifying code identical to the identifying code that the transmission control station 10 has already used for spreading advertisement data in its memory. Thus, when an advertisement is regenerated in the mobile station 30, the advertisement data broadcasted to the mobile station 30 is reversely spread by means of a specific advertisement identifying code stored in the memory so that the original advertisement data spread by the specific advertisement code is restored and then regenerated. The advertisement identifying code may be updated by the transmission control station 10, similarly to the music source.

[78]

[79] Hereinafter, an implementing example of the present invention will be described in detail.

[80] First, a format of data broadcasted through the transmission control station 10, and a process of regenerating a music source will be described.

[81] 1. Definition of Data Format

[82] < Data format broadcasted by the transmission control station 10 (hereinafter, referred to as a first format) > [83]

CO '2^s (4)

[84] ® Field in which a code expressing a sequence of data is inserted.

[85] © Field in which a code for distinguishing an advertisement data and a music source data is inserted.

[86] ® Field in which a music source data code or an advertisement data code is inserted.

[87] ® Field in which a music source data or an advertisement data is inserted.

[88]

[89] 2. First Music Source Regenerating Process (in case a music source is broadcasted using the first scheme)

[90] If a request for regenerating a specific music source is received through the music source regenerating means 70, the music source regenerating means 70 identifies the regeneration-requested music source in the music source database 50, and then determines whether the music source is under the broadcasting service with reference to a broadcasting flag.

[91] If the broadcasting service is made for the music source, a corresponding music source identifying code is read. Then, the music source data broadcasted to the mobile station 30 is reversely spread using the read music source identifying code so as to selectively extract a music source data corresponding to the read music source identifying code. Then, the music source is regenerated with buffering the extracted music source data.

[92] In case of the first scheme, since the entire music source data is transmitted to each broadcasting spot, the extracted music source data is the entire music source data. Thus, there is no need for receiving an additional music source data.

[93] Meanwhile, if the broadcasting service is not made for a requested music source, the process is changed into a red-hot music regenerating mode. And then, a music source identifying code having the higher priority is read and then above process is progressed to regenerate a red-hot song. When regenerating red-hot songs, all songs are repeatedly regenerated with lowering the priority by 1 to the lowest priority, if there is any special request from a user.

[94]

[95] 3. Second Music Source Regenerating Process (in case a music source is broadcasted using the second scheme)

[96] If a request for regenerating a specific music source is received through the music source regenerating means 70, the music source regenerating means 70 identifies the regeneration-requested music source in the music source database 50, and then determines whether the music source is under the broadcasting service with reference to a broadcasting flag.

[97] If the broadcasting service is made for the music source, a music source identifying code is read. Then, the music source data broadcasted to the mobile station 30 is reversely spread using the read music source identifying code so as to selectively extract a music source data corresponding to the read music source identifying code. Then, if it is the first music source as a result of referring to the ® field of the extracted music source data, the music source data is stored in a buffer and starts regeneration at the same time. In parallel to this process, the music source data broadcasted to the mobile station 30 keeps being inversely spread. In addition, in case there is any music source data extracted by means of reverse spreading, if the extracted music source data is a second music source data with reference to the ® field like the above case, the second music source data is connected to the stored music source data. Such a music source data connecting process is repeated until a final music source data is extracted and then connected to the music source data existing in the buffer. In parallel to the connection of music source data, the music source is continuously regenerated, of course.

[98] In case of the second scheme, a music source data is divided and broadcasted one by one, so it is required to extract the music source data by conducting reverse spreading several times in order to regenerate one music source.

[99] Meanwhile, if the broadcasting service is not made for a requested music source, red-hot songs are regenerated as mentioned in the first scheme.

[100]

[101] 4. Third Music Source Regenerating Process (in case a music source is broadcasted using the third scheme)

[102] If a music source data is broadcasted using the third scheme, n number of music sources are grouped and then broadcasted, so its substantial transmission method is similar to the first scheme except for that a period for broadcasting the same music source again is longer than that of the first scheme.

[103] Thus, the music source regeneration process when broadcasting a music source using the third scheme may be easily understood with reference to the above- mentioned first music source regenerating process, and thus it is not described in detail here.

[104]

[105] In the above first to third music source regeneration processes, though a corresponding music source data reaching the mobile station 30 at the instant that a user requests regeneration of a specific music source is not a head portion of the music source, or if it is a head portion but requires buffering the music source data for a predetermined time, the music source data is not instantly regenerated.

[106] In this case, the music source regenerating means 70 instantly outputs the music source selected by the user using a music source data sample stored in the music source database 50, and then if the music source data sample is completely regenerated, the music source regenerating means 70 regenerates the buffered music source data after the regeneration completion region of the sample. For example, if a sample regenerating time for the music source data is 10 seconds, the buffered music source data starts being regenerated after 10 seconds. Of course, a regeneration time for the sample of a music source data may be adjusted as desired. In this case, it is advantageous that a music source can be instantly regenerated from the point that a user requests regeneration of a specific music source.

[107]

[108] Now, a format of data exchanging between the transmission control station 10 and the mobile station 30 for charging a fee after a music source is completely regenerated is defined, and also detailed explanation will be given for the charging process, the free music source regenerating process, and the updating process of the music source database 50.

[109]

[110] 1. Definition of Data Format

[111] < Format of data transmitted from the mobile station 30 to the transmission control station 10 for charging (hereinafter, referred to as a second format >

[112]

[113] ® Field in which a code designating a data for charging is inserted.

[114] © Field in which an identifying code of a mobile station (e.g., ESN) is inserted.

[115] © Field in which a music source identifying code to be charged is inserted.

[116] ® Field in which a code designating a charging state of a music source is inserted (a default value: a code designating that a fee is not charged) [117] For reference, © and ® can be repeated.

[118] [119] < Format of data transmitted from the transmission control station 10 to the mobile station 30 after charging > [120]

Cl) C3)

[121] ® Field in which an identifying code of a mobile station (e.g., ESN) is inserted. [122] © Field in which a code designating a charging response data is inserted.

[123] ® Field in which a charged music source identifying code is inserted.

[124] ® Field in which a code designating a charging state of a music source is inserted (a default value: a code designating that a fee is charged)

[125] For reference, © and ® can be repeated.

[126]

[127] 2. Charging Process for Music Source Regeneration

[128] FIG. 2 is a flowchart illustrating a charging process for music source regeneration.

In FIG. 2, it should be noted that steps designated using reference numerals having alphabet S are executed in the mobile station 30, and steps designated using reference numerals having alphabet P are executed in the transmission control station 10 (identical to other drawings).

[129] Referring to FIG. 2, the music source regenerating means 70 checks whether a music source currently regenerated is completely regenerated (SlO). As a result, if YES, an identifying code of the completely regenerated music source is added to a charging music source list (S20). To the contrary, if NO, the music source keeps regenerated (S30).

[130] And then, the music source regenerating means 70 checks whether the number of music source identifying codes recorded in the music source list is greater than 3 (S40). Here, the number 3 is arbitrarily selected, and it may be changed as desired. As a result, if YES, a data according to the second format is configured (S50). At this time, the data is configured so that © and © are repeated three times. In addition, the configured data is transmitted to the transmission control station 10. Meanwhile, if it is NO as a result of the checking in the step S40, the process is returned to a regeneration routine of another music source.

[131] In the step S40, if a data having the second format is transmitted, the transmission control station 10 determines whether it is a charging data (PlO). Subsequently, the mobile station 30 is distinguished using the identifying code of the mobile station 30, the information recorded in the © and ® fields are extracted, and then a music source charging detail is stored in the database (P20). Here, the charging detail includes a mobile station identifying code, a music source identifying code, a charging date, and so on.

[132] If the step P20 is executed, the transmission control station 10 configures a data having the third format and then transmits it to the mobile station 30 (P30). Then, the music source regenerating means 70 of the mobile station 30 identifies a completely charged music source in the music source database 50 with reference to the © and © fields, and then sets a charging state flag into 'charged' (S60).

[133] Meanwhile, if music sources are regenerated using the music source list, it is apparent that the charging process for music source regeneration as mentioned above should be repeated whenever any music source is regenerated.

[134] The music source charged as mentioned above will not be charged doubly though it is regenerated again in the future. That is to say, once a music source is charged, the process of FIG. 2 will not be executed though the music source is regenerated. Meanwhile, a service fee for a music source is billed together in a service fee bill issued by a management company of the mobile station 30 at every month. For this purpose, the management company refers charging details in the database every month. That is to say, a fee to be charged for each mobile station identifying code can be grasped by calculating the total number of music sources charged for each mobile station identifying code included in bill details of each month and then multiplying it with a fee fixed for one music source.

[135]

[136] 3. Advertisement Regeneration and Free Music Source Regeneration

[137] As mentioned above, the transmission control station 10 of the present invention broadcasts the predetermined number of advertisements continuously and repeatedly. In addition, if a user of the mobile station 30 intentionally regenerates any advertisement in an advertisement regenerating mode provided by the music source r egenerating means 70, the user may receive a benefit for regenerating a music source with no charge. FIG. 3 shows this process in detail.

[138] Referring to FIG. 3, a user changes a mode of the music source regenerating means

70 into an advertisement regenerating mode (S70). Then, the music source regenerating means 70 reads all advertisement identifying codes registered in a memory to configure an advertisement regenerating list (S80). And then, an advertisement data broadcasted to the mobile station 30 is reversely spread using a first advertisement identifying code to selectively recover a corresponding advertisement data (S90). After that, the advertisement data is regenerated (SlOO). If the advertisement data is completely regenerated, the number of advertisement data regenerations is increased by 1. At this time, the number of advertisement data regenerations is stored in the memory, of course (S 110).

[139] Subsequently, the music source regenerating means 70 checks whether an advertisement identifying code having the next sequence is present in the advertisement regeneration list (S 120). As a result, if YES, an advertisement data broadcasted using the advertisement identifying code having the next sequence is reversely spread to execute the advertisement regenerating step and the step of increasing the advertisement data regeneration number by 1 again. To the contrary, if there is no advertisement identifying code having the next sequence, the advertisement regenerating routine is ended. [140] Meanwhile, though not shown in the figures, if the advertisement is regenerated, a user may regenerate a music source with on charge. Specifically, if a music source is completely regenerated in the step SlO of FIG. 2, the music source regenerating means 70 reads the advertisement regeneration number stored in the memory prior to executing the step S20. And then, if the advertisement regeneration number exceeds a predetermined criterion, the music source regenerating means 70 inquires whether or not to pay the advertisement regeneration for the music source service fee. This inquiry is output through a display provided to the mobile station 30. For example, if a policy of giving a right for regenerating one music source with no charge on the condition of regenerating three advertisements is applied, the predetermined criterion is 3.

[141] If the user agrees with the above inquiry, the music source regenerating means 70 identifies the completely regenerated music source in the music source database 50 and sets the charging state of the music source into 'charged'. And then, the advertisement regeneration number is reduced as much as a predetermined amount. In the former example, the reduced amount is 3. To the contrary, if the user does not agree with the above inquiry, the following procedure is progressed including the step S20. The policy for regenerating a music source with no charge may be changed in various ways as desired.

[142]

[143] 4. Update of the Music Source Database 50 according to Addition of a Broadcasted

Music Source.

[144] If music sources broadcasted are increased, the transmission control station 10 of the present invention may updates the music sources registered in the mobile station 30. The following is a data format used in updating.

[145]

[146] < Format of data transmitted to the mobile station 30 by the transmission control station 10 when a music source is updated (hereinafter, referred to as a fourth format) >

[147]

(D ®

[148] ® Field in which a code capable of distinguishing whether or not a update data is inserted.

[149] ® Field in which a list name of the update list is inserted.

[151] ® Field in which title, singer and genre of the updated music source are inserted.

[154] If a music source to be broadcasted is added, the transmission control station 10 configures a data according to the fourth format and then broadcasts it to the mobile station 30. At this time, the update data is spread and transmitted using a predetermined update identifying code. Then, the mobile station 30 reversely spreads the broadcasted update data using an update identifying code previously stored in the memory (identical to the above update identifying code) to identify the data according to the fourth format, and then updates the music source database 50 with reference to the ® and © fields.

[155] The music source database 50 may be updated according to a predetermined period, and for this purpose it is preferred that an update module (a kind of program) for taking a charge of updating of the music source database 50 is installed to the mobile station 30 and the update module is operated according to a certain period so as to update the music source database 50 as mentioned above.

[156] Meanwhile, the fourth data format may also be utilized in adding an advertisement identifying code. In this case, an advertisement identifying code is inserted into the © field. As an alternative, the fourth data format may be used for updating music sources and advertisements at the same time. In this case, the © and © fields are repeated so that an advertisement identifying code is inserted into a © field of a specific repetition unit and also a music source identifying code is inserted into a © field of a specific repetition unit. In the unit to which the advertisement identifying code is inserted, the © may be null. As a selective example, the update data according to the fourth format may further include a music source data sample for a head portion of a music source (for example, 10 seconds). Utilization of the music source sample is already explained above.

[157]

[158] In the configuration of the present invention as described above, the transmission control station may be a base station controller, and the transmission means 20 may be a base station. As an alternative, in case the present invention is implemented by means of the satellite DMB technique, the transmission control station 10 may be a satellite DMB center, and the transmission means 20 become an artificial satellite communicating with the satellite DMB center. As another alternative, in case the present invention is implemented using the ground wave DMB technique, the transmission control station 10 may be a local DMB center positioned in a local area, and the transmission means 20 may be a transmitter controlled by the local DMB center.

[159] The music source broadcasting service described above may be applied to other contents transmission fields as desired. Contents capable of being broadcasted according to the present invention includes any kind of information, data and files to be distributed individually such as moving pictures, kinetic images, static images, electronic books, and modularized games. [160] Now, the contents broadcasting service according to the present invention will be described in a general way with reference to FIG. 1. The transmission control station 10 spreads and broadcasts a plurality of contents having the same attribute by using different contents identifying codes. The broadcasted contents is recorded in a storage medium 40 connected to the transmission control means 10. In order to broadcast a plurality of contents, any of the first to third schemes described above may be used. That is to say, a plurality of contents may be broadcasted at once (the first scheme), broadcasted little by little (the second scheme), or grouped and then broadcasted at once for each group (the third scheme).

[161] Meanwhile, a separate contents database is prepared to the mobile station 30. This contents database includes contents titles, contents fields, contents composers, contents identifying codes, distribution date, charging flags, and broadcast flags. Selectively, the contents database may further include a contents data sample corresponding to a head portion of each contents.

[162] In case the contents is a moving picture, the contents title is a title of the moving picture, and the field of a genre of the moving picture. In case the contents is a static image or a kinetic image, the contents title is a title of the image, and the field is a classification of the image. In case the contents is an electronic book, the contents title is a title of the electronic book, and the field is a genre of the electronic book. In case the contents is a game module, the contents title is a title of the game, and the field is a genre of the game.

[163] The mobile station 30 is also provided with a contents search engine and a contents output means. The contents search engine is a program for searching information recorded in the contents database, and the contents output means is a program for outputting a specific contents selected by a user using the contents search engine.

[164] The process of outputting a contents using the content output means is very similar to the music source regenerating process. That is to say, if a user requests outputting a specific contents using the contents search engine, the contents output means extracts an identifying code of the contents selected by the user from the contents database, and also reversely spreads a signal broadcasted and reaching the mobile station 30.

[165] Then, only the data corresponding to the contents selected by the user is reversely spread and recovered. Then, the contents output means stores the recovered contents data in a memory with buffering. Also, it outputs the contents visually and/or audibly. At this time, a moving picture is recovered and output in the substantially same way as the music source, while a kinetic image, a static image, an electronic book and a game module are output after the entire contents data is stored in a memory by means of buffering. In case of a game module, outputting the contents data is defined as executing the game module. [166] If a corresponding contents data reaching the mobile station 30 at the instant that a user requests outputting a specific contents is not a head portion of the contents, or if buffering of the contents data is required for a predetermined time though it is a head portion, the contents data is not instantly regenerated.

[167] In this case, the contents output means instantly outputs the contents selected by the user using a contents data sample stored in the contents database, and then if the contents data sample is completely regenerated, the contents output means starts outputting the buffered contents data after the output completion region of the sample. For example, if a sample output time for the contents data is 10 seconds, the buffered contents data starts being output after 10 seconds. Of course, an output time for the sample of a contents data may be adjusted as desired. In this case, it is advantageous that a contents can be instantly output from the point that a user requests output of a specific contents.

[168] In case the contents is a moving picture or a kinetic image, the contents data sample is a data sample for a head portion (e.g., 10 seconds) of the moving picture or the kinetic image. In case of the contents is a static image, the contents data sample is a sample of a recent static image (it may not be the static image selected by the user). In case the contents is a game module, the contents data sample may be an initial screen of the game to be displayed when the game module is executed, or a game data sample capable of executing a first mission. In case the contents is an electronic book, the contents data sample contains a head portion (e.g., 2 pages) of the electronic book.

[169] Meanwhile, even in the embodiments related to broadcasting of contents, a service fee may be charged for each contents like the music source, any contents may be used with no charge under the condition of watching an advertisement, and the contents database may be updated using the broadcasting method. In a selective example, data for updating contents may include a data sample for the contents, like the music source update data. The charging process for each contents is conducted when any broadcasted contents is completely output.

[170] However, specific embodiments related to the above may be easily understood by those skilled in the art by utilizing the embodiments related to the music source broadcasting service, so they are not described in detail here.

[171] The present invention has been described in detail. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description. Industrial Applicability [172] The present invention enables broadcasting of a music source in a mobile environment. In addition, it allows charging for regeneration of a music source. Thus, it prevents any infringement of copyright while a music source is broadcasted. Furthermore, a user may regenerate a desired music source at any time and place though the user does not download the music source separately in a mobile environment, thereby capable of giving a differentiated music source service. Moreover, by associating regeneration of a music source with regeneration of advertisements, an advertiser may expect higher advertising effects as much, and a user may enjoy a benefit of receiving a music source regenerating service with no charge.

[173] Such effects are also expected even if the present invention is applied to any kind of information, data and files to be distributed individually such as moving pictures, kinetic images, static images, electronic books, and modularized games.

Claims

[1] A method of wireless contents broadcasting service, comprising:

(a) a transmission control station spreading and broadcasting a plurality of contents data using different contents identifying codes that are mutually kept orthogonal; and

(b) a mobile station (or, a fixed station) reversely spreading the broadcasted contents signal using a contents identifying code previously stored for a specific contents selected by a user so as to extract and output a corresponding contents data, wherein the contents identifying code used in spreading is identical to the contents identifying code used in reverse spreading.

[2] The method of wireless contents broadcasting service according to claim 1, wherein, in the step (a), the transmission control station broadcasts n number of spread contents data at every broadcasting point of time that is repeated in a predetermined cycle.

[3] The method of wireless contents broadcasting service according to claim 1, wherein, in the step (a), the transmission control station broadcasts n number of spread contents data in a way that each spread contents data is divided into the predetermined number of parts and then broadcasted over several times at every broadcasting point of time that is repeated in a predetermined cycle.

[4] The method of wireless contents broadcasting service according to claim 1, wherein, in the step (a), the transmission control station broadcasts n number of spread contents data in a way that the n number of spread contents data are divided into the predetermined number of groups and then broadcasted over several times for each group at every broadcasting point of time that is repeated in a predetermined cycle.

[5] The method of wireless contents broadcasting service according to any of claims

2 to 4, wherein the step (b) includes: selecting contents using a contents search engine; storing the contents data extracted by reverse spreading into a buffer memory for buffering; and outputting the buffered contents data.

[6] The method of wireless contents broadcasting service according to any of claims

2 to 4, further comprising: the mobile station transmitting a contents charging request including at least a mobile station identifying code and a contents identifying code to the transmission control station after the extracted contents data is completely output; and the transmission control station storing a charging detail including the mobile station identifying code, the contents identifying code and a charging date in a database.

[7] The method of wireless contents broadcasting service according to any of claims

2 to 4, further comprising: the transmission control station spreading and broadcasting advertisement data using different advertisement identifying codes that are mutually kept orthogonal; and the mobile station reversely spreading the broadcasted advertisement signal using an advertisement identifying code previously registered according to a request of the user so as to extract and regenerate a corresponding advertisement data, wherein the advertisement identifying code using in spreading is identical to the advertisement identifying code used in reverse spreading.

[8] The method of wireless contents broadcasting service according to claim 7, further comprising: the mobile station accumulatively storing an advertisement regeneration number in a memory whenever the advertisement data is regenerated.

[9] The method of wireless contents broadcasting service according to claim 8, further comprising: the mobile station inquiring the user whether or not to pay the advertisement regeneration for a service fee of the output contents data after the extracted contents data is completely output; the mobile station setting a state of the contents into a charged state; and the mobile station reducing the advertisement regenerating number as much as a predetermined amount.

[10] The method of wireless contents broadcasting service according to any of claims

2 to 4, further comprising: the transmission control station spreading and broadcasting a recent contents data using different contents identifying codes that are mutually kept orthogonal; and the mobile station reversely spreading the broadcasted contents signal using contents identifying codes according to a priority of registered recent contents, and then extracting and outputting a corresponding contents data in case it is determined that the contents requested by the user is not broadcasted.

[11] The method of wireless contents broadcasting service according to claim 10, wherein the recent contents are output from a recent contents with a highest priority to a contents with a final priority with lowering the priority one by one.

[12] The method of wireless contents broadcasting service according to any of claims 2 to 4, wherein the step (b) includes: searching contents using a contents search engine; storing the contents data extracted through the reverse spreading into a buffer memory for buffering; outputting a sample of the contents data selected by the user among samples of contents data previously stored in the mobile station in parallel to the buffering; and outputting the buffered contents data after the sample output region.

[13] The method of wireless contents broadcasting service according to any of claims

2 to 4, further comprising: the transmission control station broadcasting contents update data including an identifying code of contents to be updated, and title, composer and genre of the contents; and the mobile station receives the contents update data and updating the registered contents database.

[14] The method of wireless contents broadcasting service according to claim 13, wherein the contents update data further includes a contents data sample.

[15] The method of wireless contents broadcasting service according to claim 1, wherein the contents is information, data or file to be distributed individually.

[16] The method of wireless contents broadcasting service according to claim 15, wherein the contents is a music source, a moving picture, a kinetic image, a static image, an electronic book or a modularized game.

[17] The method of wireless contents broadcasting service according to claim 1, wherein the spread contents data is transmitted from the transmission control station to the mobile station by means of CDMA (Code Division Multiple

Access: A type and B type including EVDO reversion), W-CDMA, OFDM

(Orthogonal Frequency Division Multiplexing (including all OFDMA methods such as OFDM-TDMA, OFDM-FDMA and OFDM-CDMA), or HSPDA (High

Speed Downlink Packet Access).

[18] A system for wireless contents broadcasting service, comprising: a contents storage means for storing n number of contents data to be broadcasted, and a contents identifying code of each contents that distinguishes each contents and keeps orthogonal mutually; a transmission controls station for spreading and broadcasting the n number of contents data recorded in the contents storage means using a corresponding contents identifying code respectively; and a mobile station (or, a fixed station) including a contents database for recording an identifying code and details of each contents provided by the broadcasting service, and a contents output means for reversely spreading a contents signal broadcasted by reading the identifying code of a specific contents so as to extract and output the specific contents data when there is a request for outputting the specific contents selected from the contents database.

[19] The system for wireless contents broadcasting service according to claim 18, wherein the contents storage means further include a plurality of advertisement data to be broadcasted, and an identifying code of each advertisement that distinguishes each advertisement and keeps orthogonal mutually, wherein the transmission control station spreads and broadcasts each advertisement data using a corresponding advertisement identifying code, wherein the mobile station further stores the identifying code of the broadcasted advertisement, and wherein, when there is a request of a user, the contents output means extracts and outputs a corresponding advertisement data by reversely spreading a broadcasted advertisement signal by reading the stored advertisement identifying code.

[20] The system for wireless contents broadcasting service according to claim 18, wherein the contents storage means further includes a sample data of each contents, and wherein, in case a user requests outputting a specific contents, the contents output means outputs a sample data of the corresponding contents till a predetermined point of time and then outputs the contents data extracted by reverse spreading from the point of time so that the contents data is output after an output region of the sample data.

[21] The system for wireless contents broadcasting service according to claim 18, wherein, in case the contents is completely output, the contents output means transmits a charging request at least including the mobile station identifying code and the completely output contents identifying code to the transmission control station, and wherein the transmission control station stores charging details including the mobile station identifying code, the contents identifying code and a charging date into a database.

[22] The system for wireless contents broadcasting service according to claim 18, wherein the contents includes information, data and file to be individually distributed.

[23] The system for wireless contents broadcasting service according to claim 22, wherein the contents is any of a music source, a moving picture, a kinetic image, a static image, an electronic book and a modularized game.

[24] The system for wireless contents broadcasting service according to claim 18, wherein the spread contents data is transmitted from the transmission control station to the mobile station by means of CDMA (A type and B type including EVDO reversion), W-CDMA, OFDM (including all OFDMA methods such as OFDM-TDMA, OFDM-FDMA and OFDM-CDMA), or HSPDA.