WO1997004531A1 - Low power data receiver combined with audio receiver - Google Patents
Low power data receiver combined with audio receiver Download PDFInfo
- Publication number
- WO1997004531A1 WO1997004531A1 PCT/US1996/011327 US9611327W WO9704531A1 WO 1997004531 A1 WO1997004531 A1 WO 1997004531A1 US 9611327 W US9611327 W US 9611327W WO 9704531 A1 WO9704531 A1 WO 9704531A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- data
- paging
- audio
- receiver
- power source
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/222—Personal calling arrangements or devices, i.e. paging systems
- G08B5/223—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
- G08B5/224—Paging receivers with visible signalling details
- G08B5/228—Paging receivers with visible signalling details combined with other devices having a different main function, e.g. watches
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates generally to radio signal broadcast apparatus, and
- the radio station listeners with audio receivers tuned to the particular radio station.
- the radio station
- Some FM radio signal broadcasts include a subcarrier signal.
- Subcarrier signals can, for example, deliver paging data to a population of paging devices each of
- the paging system thereby uses the
- the FM broadcast facility receives digital paging messages from a paging system through, for example, a high speed modem coupling the FM broadcast facility to a paging system clearinghouse.
- the FM broadcast facility includes a subcarrier generator.
- the subcarrier generator receives the digital paging message information and
- the subcarrier generator applies this output to an exciter, and subsequent FM signal broadcasting devices to provide paging messages in the subcarrier portion of the transmitted FM radio signal.
- Radio stations can provide collateral material such as advertising or name and
- a paging system especially one with a time-division multiplexed and multi-
- the paging function must reliably receive paging data transmissions according to paging system protocol including frequency agility and time slot targeting.
- the collateral data function relative to a given radio station may or may not be a paging system broadcast facility.
- the audio function must follow user tuning to a desired audio station and present the audio signal continuously with clarity unaffected by any paging or collateral data reception functions.
- a system under the present invention includes an audio receiver tunable to a
- the pager operates during reception periods to receive paging data, and other times tunes to match tuning of the audio receiver to receive for display collateral data relative to the selected radio station.
- a radio signal transmission and reception system under the present invention is a radio signal transmission and reception system under the present invention.
- At least one radio signal transmission station transmits a radio signal including an audio portion and a data portion.
- the data portion includes digital collateral information descriptive of the audio portion.
- At least one remote receiving device includes an audio receiver and
- the audio receiver selectively tunes and presents the audio portion of the radio signal.
- the data receiver selectively tunes as needed to receive paging data according to the paging system protocol, and at other times tunes in response to tuning on the audio receiver to receive digital collateral information corresponding
- a radio signal receiving device method of operation under the present invention includes a high power mode and a low power mode.
- the high power mode operates in response to availability of an intermittently available power source to receive by radio signal transmission audio, paging message, and digital collateral data.
- the device takes power from the intermittently available power source when in the high power mode.
- the low power mode operates in response to non-availability of the intermittently available power source to receive by radio signal transmission paging
- the device takes power from a constantly available relatively lower
- FIG. 1 illustrates a system according to a preferred embodiment of the present invention including a paging system, plurality of radio stations, and plurality of remote receivers each including a low power data receiver combined with an audio
- FIG. 2 is a block diagram of one of the radio stations of FIG. 1 including a multiple-
- FIGS. 3A and 3B are flow charts illustrating operation of the audio source
- FIG. 4 is a block diagram of one of the remote receivers of FIG. 1.
- FIG. 5A is a flow chart illustrating a high power mode of operation for the data receiver portion of a remote receiver of FIG. 1.
- FIG. 5B is a flow chart illustrating a paging data interrupt routine for the data receiver portion of the remote receiver of FIG. 1.
- a system 10 in accordance with a preferred embodiment of the present invention will be illustrated in the context of a paging system 20 coupled to a plurality of FM radio stations 18, individually 18a-18c.
- Radio stations 18 each transmit a combined audio and data radio signal 12 to a population of remote receivers 14.
- receivers 14 are located in a variety of locations, e.g., home audio system 15 or vehicles 16. While a limited number of radio stations 18 and receivers 14 are illustrated in FIG. 1, it will be understood that the present invention may be implemented with any given number of such radio stations and remote receiving devices.
- Callers 19 connect to system 20 and generate paging requests 21 through a public switch telephone network (PSTN) 22.
- PSTN public switch telephone network
- paging system 20 delivers a
- Each radio station 18 incorporates paging data 24 into a sideband frequency of its signal 12 by use of a subcarrier generator device. Radio stations 18 transmit the audio portion of signal 12 at a given station frequency in conventional fashion and transmit the sideband or data portion at a given
- remote paging devices activate at certain brief
- time slots monitor a selected sideband signal, and receive a data packet.
- Pagers seek paging information by selectively tuning to one of a plurality of radio stations and synchronizing relative to a repeating
- Each pager targets a given station frequency and time slot for
- each remote receiver must stand ready to tune to a
- 4,713,808 shows a paging system including a multi-frequency time-division
- multiplexed paging system including a clearinghouse and FM radio stations.
- FM radio station provides in a main audio channel an audio signal and provides in a subcarrier signal paging data directed to a population of remote paging devices.
- the present invention may be implemented in a variety of radio signal transmission
- Each of receivers 14 include corresponding receiver decoding circuitry
- Each radio station 18 also incorporates into the data portion of its signal 12
- digital collateral data for presentation at receivers 14. While discussed herein generally as textual presentation, it will be understood that digital collateral data
- audio presentation e.g., song title, song classification, producer, artist, advertiser
- the invention concems coordinated reception and use of the audio portion, e.g. voice,
- collateral data e.g., taken from signals 12 and stored or displayed at receivers 14.
- FIG. 2 illustrates generally one of radio stations 18 as coupled to public switch
- a stereo generator 200 receives left and right channels of a main audio
- left and right channels of signal 202 are combined, subtracted, applied to a pilot generator, and subjected to other known procedures to derive a
- Exciter 210 receives the sum of stereo multiplexed signal 206 and a subcarrier signal 208. Exciter 210 applies its output 220 to an
- amplifier 222 driving antenna 224 and to transmit the combined voice and data radio
- a subcarrier generator 214 provides subcarrier signal 208 partially from the stream
- Paging data 24 represents the normal flow or stream of paging data obtained from paging system 20 and injected as a subcarrier component of radio signal 12.
- Digital collateral data 218 represents identifying or descriptive data with respect to audio
- Subcarrier generator 214 incorporates the digital collateral data 218 into the stream of paging data 24 according to paging system 20 broadcast protocol.
- paging system 20 broadcasts paging message data packets during particular time slots according to a time-division multiplexed protocol, and digital collateral data 218 replaces unused data packets in the stream of paging data 24.
- a plurality of audio components, or sub-sources, 250 drive an audio mixer 252 producing the audio signal 202 as its output.
- Components 250 comprise various individual audio sources such as tape machines and CD players storing audio items for programmed presentation by radio station 18.
- a control 254 applies control commands 256 and 257 to audio components 250 and audio mixer 252, respectively, according to a prearranged play list 260.
- Play list 260 items specify command information needed to operate a given one of components 250 and further include descriptive or identifying information. Play list 260 thereby dictates operation of control 254 in issuing commands 256 and 257 to components 250 and
- FIG. 3.- illustrates control 254 operation with respect to audio signal 202 production.
- FIG. 3 is a flow chart illustrating a "play audio" routine executed by
- control 254 sends corresponding digital collateral data
- control 254 sends identifying or descriptive
- subcarrier generator 214 where a next audio item is selected and played, and corresponding digital collateral data 218 is sent to subcarrier generator 214.
- FIG. 3B is a flow chart illustrating operation of the subcarrier generator 214.
- subcarrier generator 214 initializes in block 350 a FILL DATA variable with a
- digital collateral data 218 has arrived from audio source 204. If no new digital collateral data 218 has arrived then processing advances to block 354, but if new
- subcarrier generator 214 incorporates the current FILL DATA value into one or more
- subcarrier generator 214 provides as its output the combined digital collateral data 218, as generated by the radio station 18, and paging data as generated by paging system
- collateral data 218 has arrived from audio source 204.
- each radio station 218 presents a series of programmed audio items in the audio portion of its signal 12 while concurrently presenting in the data or
- each radio station 18 serves
- a given radio station 18 need not be part of the paging system 20 transmission
- the radio station 18 would include a subcarrier generator, but need not combine paging data with digital collateral data.
- the broadcast 12 would then include an audio portion and a data portion including only digital collateral data.
- FIG. 4 illustrates in simplified block diagram a receiver 14 as contemplated under
- Receivers 14 each include an audio portion 15 and a data receiver portion 17.
- Data portion 17 is a low power device corresponding generally
- the audio portion corresponds generally to a pager under system 20.
- portions 15 and 17 are modified to
- the data portion 17 selectively monitors the data portion of one
- data portion 17 monitors the subcarrier of a specific signal 12 as indicated by the audio portion 15 of receiver 14, i.e. collects collateral data 218
- An audio receiver 400 receives, via antenna 402, a signal 12 from one of radio
- Receiver 400 applies the baseband composite signal 412 to a filter
- Audio signal 416 drives an audio block 420
- Tuner controls block 426 includes conventional FM radio control buttons and knobs in implementation of the tune signal 408 and volume, balance, and tone control signal 424. Display
- controls block 428 provides user-buttons for manipulation of a textual display at LCD
- display block 430 e.g., manipulation of paging message and collateral data textual presentation.
- Audio portion 15 of each receiver 14 operates generally as a conventional FM radio
- general purpose controller 410 is configured to control the data portion 17 of receiver 14.
- a data controller 454 of data portion 17 provides to general
- paging data 24 and digital collateral data 218 is accomplished by the storage and user-interface resources of audio portion 15 of receiver 14. This arrangement avoids duplication of display and storage resources in the receiver 14. As may be
- data portion 17 could be provided with its own storage and
- data portion 17 does include a small local storage block 455 for storing
- Data receiver 450 monitors, via antenna 451 , the subcarrier or data portion of a
- a filter 416 couples the data receiver 450 output 418 to a data
- Decoder block 456 reacts to paging system 20 protocol to extract therefrom a sequence of data packets.
- controller 454 monitors
- Controller 454 provides selected data packets 432 to controller 410. Controller 454
- Controller 454 determines the current tuning of
- LCD display block 430 allows controller 410 to present textually the content of data
- block 431 allows controller 410 to save a given number of data packets 432.
- controller 410 interacts with blocks 428, 430, and 431 according to an established user-interface to implement selected storage and textual display of paging data 24
- Each receiver 14 has two power sources, i.e., a high power source 470 and a low power source 472.
- High power source 470 e.g., a vehicle 16 power system, provides power for the audio portion 15 of each receiver 14, but may not always be
- Low power source 472 e.g., a small battery such as a watch battery,
- Switch 474 receives energy from high power source
- Switch 474 applies to data portion 17 the high power source 470 when available and otherwise applies low power source 472.
- data portion 17 monitors the high power
- data portion 17 constantly collects data packets from a radio station 18 sideband frequency
- Data portion 17 thereby reacts to availability of power and performs the additional
- receiver 14 could be incorporated into an AC-powered
- high power source 470 is only be available when the device is switched-on or plugged into a wall receptacle.
- low power source 472 is always available for operation of data portion 17 to
- FIGS. 5A and 5B are flow charts illustrating programming for data controller 454.
- FIG. 5A shows a high power mode of operation for controller 454
- FIG. 5B shows operation relative to receiving of paging data 24, in particular a seek paging data interrupt routine executed with reference to the repeating time frame of system 20 protocol to activate and monitor a selected signal
- FIG. 5B occurs regardless of high power source 470 availability, there being low
- controller 454 reacts to the availability of high power source 470 by first enabling in block 500 the interrupt processing, i.e. paging message targeting and collection, of FIG. 5B. Continuing to block 502, controller 454 references its tuned audio frequency 435 input and tunes data receiver 450 to match the current tuning
- controller 454 receives a data packet according
- controller 454 interrogates the content of the received data packet to identify representation of the digital collateral data 218 therein.
- data packets carrying digital collateral 218 include an identification field
- controller 454 sends the just-received digital collateral
- controller 454 determines if the user has switched to a different station 18 by again referencing its tuned audio frequency 435 input. If audio receiver 400 has been tuned by the user to a new frequency then processing returns to tuning block 502, but otherwise retums to receiving block 504.
- FIG. 5B illustrates the paging data interrupt routine executed by data portion 17 of
- processing begins in block 550 where controller 454 activates data receiver 450 and
- Tuning in block 550 corresponds to a
- System 20 broadcasts information redundantly on radio stations 18, with a given time offset between station 18 time frames. In this manner, a pager switches frequencies, i.e., tunes to a different station 18 and synchronizes to its offset time
- each pager seeks paging data by selecting a particular radio station
- controller 454 receives and decodes a data packet.
- controller 454 compares its address with an address field of the decoded packet, i.e., determines whether the data packet is addressed to this
- Processing of FIG. 5B then exits from block 562. If, however, the decoded data packet is addressed to this particular receiver 14,
- controller 454 stores the decoded data packet in local storage block 455.
- local storage block 455 is of sufficient size to hold a desired number of decoded
- controller 454 sends stored data packets to general
- the data portion may be incorporated into existing device design by appropriate interface coupling.
- the data portion may be incorporated
- the device advantageously collects all digital collateral information on a given radio station.
- second low power source remains constantly available to serve the higher priority paging functions. In this manner, a receiver 14 presently unused remains available to collect paging data.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96922660A EP0842565A4 (en) | 1995-07-14 | 1996-07-02 | Low power data receiver combined with audio receiver |
AU63460/96A AU6346096A (en) | 1995-07-14 | 1996-07-02 | Low power data receiver combined with audio receiver |
JP50670497A JP3917657B2 (en) | 1995-07-14 | 1996-07-02 | Low power data receiver combined with audio receiver |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/502,807 | 1995-07-14 | ||
US08/502,807 US5774798A (en) | 1995-07-14 | 1995-07-14 | Low power data receiver combined with audio receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997004531A1 true WO1997004531A1 (en) | 1997-02-06 |
Family
ID=23999507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/011327 WO1997004531A1 (en) | 1995-07-14 | 1996-07-02 | Low power data receiver combined with audio receiver |
Country Status (6)
Country | Link |
---|---|
US (1) | US5774798A (en) |
EP (1) | EP0842565A4 (en) |
JP (1) | JP3917657B2 (en) |
AU (1) | AU6346096A (en) |
CA (1) | CA2221742A1 (en) |
WO (1) | WO1997004531A1 (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19625429A1 (en) * | 1996-06-25 | 1998-01-02 | Bosch Gmbh Robert | Process for the separation and labeling of spoken announcements in a radio transmission |
US6757913B2 (en) * | 1996-07-15 | 2004-06-29 | Gregory D. Knox | Wireless music and data transceiver system |
JP3702551B2 (en) * | 1996-09-13 | 2005-10-05 | 住友電装株式会社 | Broadcast receiving system and broadcast receiving method using the same |
US6140937A (en) * | 1997-03-17 | 2000-10-31 | Sony Corporation | Modular pager unit removably incorporated with a personal electronic device |
US6272191B1 (en) * | 1997-09-09 | 2001-08-07 | Sumitomo Wiring Systems, Ltd. | Information receiving system and an information receiving method using such a system |
JP3861413B2 (en) * | 1997-11-05 | 2006-12-20 | ソニー株式会社 | Information distribution system, information processing terminal device, portable terminal device |
US6600908B1 (en) * | 1999-02-04 | 2003-07-29 | Hark C. Chan | Method and system for broadcasting and receiving audio information and associated audio indexes |
US7369824B1 (en) | 1999-02-04 | 2008-05-06 | Chan Hark C | Receiver storage system for audio program |
US6163683A (en) * | 1999-02-24 | 2000-12-19 | International Business Machines Corporation | Broadcast data radio system and receiver apparatus therefor |
US7245707B1 (en) | 1999-03-26 | 2007-07-17 | Chan Hark C | Data network based telephone messaging system |
JP2002222563A (en) * | 2001-01-25 | 2002-08-09 | Pioneer Electronic Corp | Switching device and information recording/reproducing device provided with switching device |
US8868023B2 (en) | 2008-01-04 | 2014-10-21 | 3D Radio Llc | Digital radio systems and methods |
US8699995B2 (en) | 2008-04-09 | 2014-04-15 | 3D Radio Llc | Alternate user interfaces for multi tuner radio device |
US8706023B2 (en) | 2008-01-04 | 2014-04-22 | 3D Radio Llc | Multi-tuner radio systems and methods |
CA2438998C (en) | 2001-02-20 | 2011-08-23 | Caron S. Ellis | Multiple radio signal processing and storing method and apparatus |
US8909128B2 (en) * | 2008-04-09 | 2014-12-09 | 3D Radio Llc | Radio device with virtually infinite simultaneous inputs |
US6751454B2 (en) | 2001-05-29 | 2004-06-15 | Leap Wireless International, Inc. | System and method for sampling audio recordings on a wireless communication device |
US20080162300A1 (en) * | 2003-09-26 | 2008-07-03 | Ewald Stephen A | System and Method for Purchasing Linked with Broadcast Media |
US7801478B2 (en) * | 2005-05-03 | 2010-09-21 | Marvell International Technology Ltd. | Systems for and methods of remote host-based media presentation |
CN102497214B (en) * | 2011-12-13 | 2014-06-25 | 方正国际软件有限公司 | Wireless multi-channel explanation device and multi-channel explanation method thereof |
JP6329000B2 (en) * | 2014-05-27 | 2018-05-23 | Necプラットフォームズ株式会社 | Wireless communication system, communication control apparatus, communication method, control method, and program |
Citations (4)
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US4379947A (en) * | 1979-02-02 | 1983-04-12 | Teleprompter Corporation | System for transmitting data simultaneously with audio |
US5146612A (en) * | 1989-04-17 | 1992-09-08 | Spingarn James L | Technique for using a subcarrier frequency of a radio station to transmit, receive and display a message together with audio reproduction of the radio program |
US5170487A (en) * | 1989-01-19 | 1992-12-08 | Seiko Corp. | Paging system with multiple frequencies and multiple protocols |
US5408686A (en) * | 1991-02-19 | 1995-04-18 | Mankovitz; Roy J. | Apparatus and methods for music and lyrics broadcasting |
Family Cites Families (3)
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DE4228116C2 (en) * | 1992-08-25 | 1996-10-17 | Blaupunkt Werke Gmbh | Circuit arrangement for the operating voltage supply of a car radio |
JP3204282B2 (en) * | 1993-09-10 | 2001-09-04 | ソニー株式会社 | Receiving machine |
US5535428A (en) * | 1994-07-28 | 1996-07-09 | Motorola, Inc. | Method and apparatus for selectively retaining messages received by a radio receiver based upon message content |
-
1995
- 1995-07-14 US US08/502,807 patent/US5774798A/en not_active Expired - Lifetime
-
1996
- 1996-07-02 CA CA002221742A patent/CA2221742A1/en not_active Abandoned
- 1996-07-02 AU AU63460/96A patent/AU6346096A/en not_active Abandoned
- 1996-07-02 WO PCT/US1996/011327 patent/WO1997004531A1/en not_active Application Discontinuation
- 1996-07-02 EP EP96922660A patent/EP0842565A4/en not_active Withdrawn
- 1996-07-02 JP JP50670497A patent/JP3917657B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US4379947A (en) * | 1979-02-02 | 1983-04-12 | Teleprompter Corporation | System for transmitting data simultaneously with audio |
US5170487A (en) * | 1989-01-19 | 1992-12-08 | Seiko Corp. | Paging system with multiple frequencies and multiple protocols |
US5146612A (en) * | 1989-04-17 | 1992-09-08 | Spingarn James L | Technique for using a subcarrier frequency of a radio station to transmit, receive and display a message together with audio reproduction of the radio program |
US5408686A (en) * | 1991-02-19 | 1995-04-18 | Mankovitz; Roy J. | Apparatus and methods for music and lyrics broadcasting |
Non-Patent Citations (1)
Title |
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See also references of EP0842565A4 * |
Also Published As
Publication number | Publication date |
---|---|
US5774798A (en) | 1998-06-30 |
JP3917657B2 (en) | 2007-05-23 |
EP0842565A1 (en) | 1998-05-20 |
EP0842565A4 (en) | 2000-09-13 |
JPH11509393A (en) | 1999-08-17 |
CA2221742A1 (en) | 1997-02-06 |
AU6346096A (en) | 1997-02-18 |
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