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Publication numberCN1449542 A
Publication typeApplication
Application numberCN 01814998
PCT numberPCT/US2001/024102
Publication date15 Oct 2003
Filing date1 Aug 2001
Priority date4 Aug 2000
Also published asCN101655903A, CN101655903B, DE60143750D1, EP1305717A2, EP1305717B1, US6824063, US7090124, US7350714, US20040256459, US20060202034, WO2002013021A2, WO2002013021A3, WO2002013021A9
Publication number01814998.7, CN 01814998, CN 1449542 A, CN 1449542A, CN-A-1449542, CN01814998, CN01814998.7, CN1449542 A, CN1449542A, PCT/2001/24102, PCT/US/1/024102, PCT/US/1/24102, PCT/US/2001/024102, PCT/US/2001/24102, PCT/US1/024102, PCT/US1/24102, PCT/US1024102, PCT/US124102, PCT/US2001/024102, PCT/US2001/24102, PCT/US2001024102, PCT/US200124102
Inventors罗伯特F沃莱斯, 韦斯利G布莱韦, 尤斯品托
Applicant三因迪斯克公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Use of small electronic circuit cards with different interfaces in an electronic system
CN 1449542 A
Abstract  translated from Chinese
诸如汽车无线电设备、便携式和其它计算设备、全球定位系统接收器的电气系统通常需要在使该系统全部或部分地可操作之前,或者在可以接收某些数据之前从可移动地插入到该系统的卡插槽中的小容量存储器卡输入正确的安全代码。 Such as car radios, portable and other computing devices, GPS receivers typically require electrical system so that the system is operable prior to fully or partially, or may be received before some of the data may be moved from the inserted into the system card slot in the small-capacity memory card to enter the correct security code. 相同类型的存储器卡还用于存储该系统在经该安全代码启动的功能中使用的数字数据,这些数据卡与含有该安全代码的卡一样可移动地插入到同一个卡插槽中。 The same type of memory card is also used to store digital data in the system through which the security code is used to start the function, the data card and the card containing the same security code movably inserted into the same card slot. 替代地,可在单个卡中包含应用数据和安全代码二者。 Alternatively, the application may contain both data and code security in a single card. 一种应用的例子是汽车无线电设备,其中由第二卡提供的数据是通过该无线电设备的音频系统再现的音乐。 An example application is the car radio apparatus, wherein the data card is provided by the second radio device through the audio system reproduced music.
Claims(24)  translated from Chinese
1.一种可移动地插入到插座中的电子卡,所述插座和该卡的各接点电接触,其中该卡的物理形状以及各接点的排列符合已公布的第一卡标准,同时通过这些接点的一个电气接口符合已公布的第二卡标准,该第一和第二卡标准规定不兼容的卡物理形状、接点排列以及电信号接口。 A movably inserted into the receptacle of the electronic card, the contact points of the socket and the electrical contact of the card, wherein the physical shape of the card and the contacts are arranged in line with a first published card standard, while these an electrical interface contacts of the second line with the published card standard, the first and second card standards incompatible physical card shapes, arrangement of contacts and electrical signal interfaces.
2.依据权利要求1的卡,其中第一卡标准是MMC或SD卡的标准,而第二卡标准是ISO/IEC 7816标准。 2. The card according to claim 1, wherein the first card standard is a standard MMC or SD card, and the second card standard is ISO / IEC 7816 standard.
3.依据权利要求2的卡,其中该卡在其所述各接点处省略遵照该第一卡标准的电信号接口。 3. The card according to claim 2, wherein each of the card at the junction of which is omitted in accordance with the first card standard electrical interface.
4.依据权利要求3的卡,其中在该卡中以可以通过遵照该第二卡标准的电气接口的各卡接点进行访问的方式存储安全代码的数据。 3 card according to claim 4, wherein in order to be able to follow through the card contacts of the second electrical interface card standard way to access the data stored in the security code of the card.
5.依据权利要求2的卡,其中该卡还在其所述各接点处包含遵照该第一卡标准的电信号接口。 5. The card according to claim 2, wherein the card also comprises at which the respective contacts in accordance with the first card standard electrical interface.
6.依据权利要求5的卡,其中该卡包括存储在其中的能通过遵照该第二卡标准的电气接口的各卡接点访问的安全代码数据,并且还包括存储在其中的并能通过遵照该第一卡标准的电气接口的各卡接点访问的内容数据,其中该安全代码适应于用来启动该内容数据的应用。 6. The card according to claim 5, wherein the card comprises stored therein by each card in accordance with the second contact access card standard electrical interface security code data, and further comprising stored therein and can be in accordance with the The first card standard electrical interface to access each of the content data card contacts, wherein the security code is adapted to the content data is used to start the application.
7.一种使用可移动数据存储卡的方法,包括:提供具有遵照已公布的第一卡标准的物理形状、电气接点排列以及通过这些接点的电气接口的第一卡;提供具有遵照该第一卡标准的物理形状和电气接点排列的并且具有通过遵照已公布的第二卡标准的各接点的电气接口的第二卡,其中该第一和该第二卡标准规定不兼容的卡物理形状、接点排列和电信号接口;把该第一和第二卡插入到至少一个插座中,该插座遵照该第一卡标准的电气接点排列电气地啮合它们的各接点;通过一个电气上和该插座连接的系统读出该第一和第二卡中存储的数据;以及通过该系统以合作方式应用从该第一和第二卡读出的数据。 7. A method of using a removable data storage card, comprising: providing a physical shape have been published in accordance with a first card standard, the electrical contacts are arranged and through which the electrical contacts of the first interface card; provided in accordance with the first having Card standard physical shape and arrangement of electrical contacts and having a second card by following the published card standard second electrical interface of the contacts, wherein the first and the second card standard is not compatible with the physical shape of the card, arrangement and electrical interface contacts; to the first and second card is inserted into at least one receptacle, the receptacle in accordance with the first card standard electrical contacts arranged in their respective electrically engaging contact; by an electrically and the receptacle connector The system reads the first and second data stored on the card; and cooperative manner through the system application data read from the first and second card.
8.依据权利要求7的方法,其中该第二卡中存储的数据是由该系统用来启动从该第一卡读出的数据的应用的安全代码。 8. The method according to claim 7, wherein the second data is stored on the card by the system to enable the application of the security code read from the first card data.
9.依据权利要求7或8的方法,其中该第一卡标准是MMC卡或SD卡标准,并且该第二卡标准是ISO/IEC 7816标准。 9. The method according to claim 7 or claim 8, wherein the first card standard is a MMC card or SD card standard, and the second card standard is ISO / IEC 7816 standard.
10.一种用来操纵电子设备的方法,包括:通过把其上存储着安全代码的第一非易失性存储器卡插入到该设备的插座中对该电子设备输入安全代码;比较该输入的安全代码和在该设备中以非易失性方式存储的安全代码,并且,若这些安全代码相配,则启动该电子设备的操作;在从该第一卡输入该安全代码后,从该插座中取出所述第一卡;此后,通过把其上存储着该电子设备在操作中使用的数据的第二非易失性存储器插入到所述插座中向该电子设备输入该数据;以及此后,通过使用所述数据操作该已启动的电子设备。 10. A method of manipulating an electronic device, comprising means for: inserted into the receptacle of the apparatus to the electronic devices enter the security code by the security code stored thereon a first non-volatile memory card; comparing the input and security code stored in non-volatile manner in the apparatus security code, and, if these security codes match, the operation of the electronic device to start; after entering the security code from the first card from the socket removing the first card; thereafter, is inserted through the data stored thereon for use in the operation of the electronic device in the second non-volatile memory into the socket of the data input to the electronic device; and thereafter, by using the data operation of the powered electronic device.
11.依据权利要求10的方法,其中该输入到所述电子设备的数据包括由该设备使用的用来产生声音的音频数据。 11. The method according to claim 10, wherein the input to said electronic device comprises the audio data for generating sound data by the apparatus used.
12.依据权利要求11的方法,其中所产生的声音包括音乐。 12. The method according to claim 11, wherein the generated sound comprises music.
13.依据权利要求11的方法,其中该电子设备包括车辆中安装的音响系统。 13. The method according to claim 11, wherein the electronic device comprises a sound system installed in the vehicle.
14.依据权利要求10的方法,其中该电子设备包括全球定位系统,并且对该电子设备输入的数据包括全球定位数据。 14. The method according to claim 10, wherein the electronic device comprises a global positioning system, and the data input to the electronic device comprises a global positioning data.
15.依据权利要求10的方法,其中该电子设备包括便携式电子设备,并且对该电子设备输入的数据包括用于至少部分地操作该设备的程序。 15. The method according to claim 10, wherein the electronic device comprises a portable electronic device, and the data input of the electronic device comprises means for at least partially operate the device program.
16.一种电子设备,包括:至少一个插座,在其中可移动地插入具有已公布的第一卡标准的形状和接点排列的第一电子卡以建立该卡的各接点与该设备之间的电气连接,但是其中不能可操作地插入具有已公布的第二卡标准的形状和接点排列的第二电子卡以产生所述连接;以及其中该第一存储器卡包括遵照该第二卡标准的并且和该第一卡标准的电子功能和电气接口不同的电子功能和电气接口。 16. An electronic device, comprising: at least one socket, which is movably inserted in a first electronic card of the first card having a standard shape and arrangement of the contact has been published to establish contact between the card and the device's electrical connection, but which can not be operatively inserted with a second published card standard shape and arrangement of contacts to produce said second electronic card is connected; and wherein the first memory card includes a card in compliance with the second standard, and and the first card standard electronic function and electrical interfaces of different electronic functions and electrical interfaces.
17.依据权利要求16的设备,其中该第一卡标准是MMC或SD卡标准,同时该第二卡标准是ISO/IEC 7816标准。 17. The apparatus according to claim 16, wherein the first card standard is the MMC or SD card standard, while the second card standard is ISO / IEC 7816 standard.
18.依据权利要求17的设备,其中该第一卡省略遵照该第一卡标准的在所述各接点处的电信号接口。 18. The apparatus according to claim 17, wherein the first card is omitted in accordance with the first electrical interface card standard in the respective junction.
19.依据权利要求18的设备,其中在该第一卡中以可由该设备通过遵照该第二卡标准的电气接口的该第一卡的各接点访问的方式存储安全代码数据。 19. The apparatus according to claim 18, wherein in the first card to be by way of the device in accordance with the respective contacts of the second card standard electrical interface to access the first memory card security code data.
20.依据权利要求17的设备,其中第一卡还包括在其所述各接点处的遵照该第一卡标准的电信号接口。 20. The apparatus according to claim 17, wherein the first card also includes a first card in compliance with the standards which the respective electrical contact at the interface.
21.依据权利要求20的设备,其中该第一卡包括存储在其中的并且可由该设备通过遵照该第二卡标准的电气接口的第一卡的各接点访问的安全代码数据,并且还包括存储在其中的并且可通过遵照该第一卡标准的电气接口的第一卡的各接点访问的内容数据,其中该安全代码适应于用来启动该内容数据的应用。 21. A device according to claim 20, wherein the first card includes stored therein and the device in accordance with the respective contacts accessible through the second card standard electrical interface of the first card security code data may be, and further comprising a storage therein and may be accessed via the respective contacts in accordance with the content of the first card standard electrical interface of the first card data, wherein the security code is adapted to the content data is used to start the application.
22.一种电子设备,包括:一个至少实现一种指定功能的电子系统;一个存储的安全代码;至少一个插座,该插座中可移动地插入至少一种类型的非易失性存储器卡;一个与所述至少一个插座连接的电路,该电路用于接收来自插入到所述至少一个插座中的存储器卡的安全代码并且用于当所接收的安全代码与所存储的安全代码匹配时启动该电子系统以实现所述至少一种指定功能;以及另一个与所述至少一个插座连接的电路,该另一个电路用于接收来自插入到所述至少一个插座中的存储器卡的数据并且用于把该数据提供给该电子系统以用于实现所述至少一种指定功能。 22. An electronic device, comprising: an electronic system to achieve at least one of the specified functions; a stored security code; at least one socket, which is inserted at least one type of non-volatile memory card is movably; a with at least one receptacle connected to circuitry for receiving from the security code into said at least one socket and a memory card is used to start the electronic security system when the received code matches the stored security code to achieve said at least one specified functions; and the other circuit connected to the at least one socket, which is another circuit for receiving data from said at least one socket is inserted into the memory card and the data for the is supplied to the electronic system for implementing the at least one specific function.
23.依据权利22的电子设备,还包括所述至少一种类型的第一和第二存储器卡,所述第一卡包含有安全代码并且所述第二卡包含有该数据。 23. The electronic device according to claim 22, further comprising at least one type of said first and second memory card, the first card includes a security code and said second card includes the data.
24.一种音响设备,包括:至少第一和第二存储器卡,它们各具有给定的物理格式,以及能从其上读出存储在卡中的数据的各电气接点的给定模式;以及一个安装在车辆内的音频单元,该音频单元包括:一个音频放大器;一个插槽,该插槽一次接受一个存储器卡的插入并和该插入的存储器卡的各电气接点的给定模式相接触;一个响应该无线电设备的专用安全代码启动该音频单元的操作的安全电路;以及一个和该插槽连接的卡接口电路,用于根据插入到该插槽内的卡上所包含的数据把安全代码提给该安全电路和把音频数据提供给该音频放大器;所述第一存储器卡包含该安全电路所响应的安全代码数据,所述第二存储器卡包含该音频放大器所响应的音频数据,以便根据该音频数据再现声音。 24. An acoustic apparatus, comprising: at least first and second memory cards, each having a given physical format, as well as from its respective electrical contact on the readout of the data stored in the card of a given mode; and mounted in the vehicle audio unit, the audio unit comprises: an audio amplifier; a slot that accepts the insertion of a memory card again and the inserted memory card and the electrical contacts of the respective contact with the given pattern; a radio device in response to the special security code starts the operation of the audio cell of the safety circuit; and a slot and connected to the card interface circuit for the card inserted into the slot data contained within the security code reference to the safety circuit and the audio data to the audio amplifier; said first memory card containing the safety circuit is responsive security code data, said second memory card contains audio data of the audio amplifier in response to the order according to The audio data reproduced sound.
Description  translated from Chinese
电子系统中对带有不同接口的小型电子电路卡的使用 Electronic systems used on small electronic circuit cards with different interfaces of

技术领域 FIELD

本发明一般地涉及带有不同机械和/或电子接口的可移动电子电路卡的使用及结构,并且更具体地,本发明涉及根据相关的多媒体卡(“MMC”)和安全数字(“SD”)存储器卡接口的非易失性存储器卡的使用,以及具有根据国际标准组织(“ISO”)和国际电工委员会(“IEC”)的一种标准,例如ISO/IEC7816标准的接口的卡的使用。 The present invention relates generally to the use and structure of removable electronic circuit cards having different mechanical and / or electronic interfaces, and more particularly, the invention relates to the relevant multimedia card ("MMC") and Secure Digital ("SD" ) using a non-volatile memory card memory card interface, and has a standard ("ISO") and the International Electrotechnical Commission ("IEC") in accordance with ISO, for example, using ISO / IEC7816 standard interface card .

背景技术 BACKGROUND

在由加州Cupertino的多媒体卡协会(“MMCA”)不时地更新和公布的“多媒体卡系统规范”中给出对于MMC的物理和电气规范要求。 MMC is given for physical and electrical specifications update and publish from time to time by the California Cupertino Multimedia Card Association ("MMCA") of "Multimedia Card System Specifications". 日期分别为1999年6月和2000年1月的该规范的2.11和2.2版本特地收录在此作为本文的参考文献。 Dates are June 1999 and January 2000 for the specification version 2.11 and 2.2 specifically included in this article as a reference. 目前可以从本申请的受让人、加州Sunnyoale的SanDisk公司买到单个卡具有高达64兆字节的各种存储量的MMC产品。 Currently available from the assignee of the present application, the California company to buy a single Sunnyoale the SanDisk card with up to 64 megabytes of storage capacity of the various MMC products. SanDisk公司于2000年4月公布的“多媒体卡产品手册”(版本2)中说明了这些产品,该手册特地收录在此作为本文的参考文献。 SanDisk Corporation in April 2000 announced the "Multimedia Card Product Manual" (version 2) described in these products, which are included in this manual specifically incorporated herein by reference. MMC产品的电气操作的某些方面还在转让给SanDisk公司的皆于1998年11月4日由N.Toombs和Micky Holtzman提出的序号为09/185,649和09/186,064的待审专利申请中说明。 Certain aspects of the electrical operation of MMC products also transferred to SanDisk's numbers are on November 4, 1998 by N.Toombs and Micky Holtzman made 09 / 185,649 and 09 / 186,064 pending patent application instructions. 在转让给SanDisk公司的美国6,040,622号专利中说明了卡的物理结构以及一种制造它的方法。 Transfer to SanDisk Corporation in the United States Patent No. 6,040,622 describes the physical structure of the card as well as a method of manufacturing it. 这些申请以及该专利也特地收录在此作为本文的参考文献。 These applications and the patent also specifically included in the documents incorporated herein by reference.

较新的SD卡类似于MMC卡,二者尺寸相同但SD卡厚度增加以容纳一块附加的存储器芯片。 Newer SD card MMC card is similar, but both the same size SD card to accommodate an increase in the thickness of the additional memory chip. 它们之间的主要区别在于,SD卡含有附加的数据接点组以便能在卡和主机之间更快地传送数据。 The main difference between them is that, SD card containing additional data contacts in order to transfer data set more quickly between the card and the host. SD卡的其它接点和MMC卡的接点相同,以便使设计成接受SD卡的插口也接受MMC卡。 The same contacts and other contacts MMC card SD card so designed to accept SD cards also accept MMC card socket. SD卡的电气接口还基本上做成向后和前面引用的该规范的2.11版本中所说明的MMC产品兼容,以便为了容纳这二种类型的卡只需要对主机操作做出很少的改变。 MMC products SD card electrical interface is also made substantially rearwardly and the specification of the previously cited those described in version 2.11 compatible, so that in order to accommodate these two types of cards need only make a few of the host operating changes.

根据ISO/IEC7816标准做成的卡与MMC卡以及SD卡形状不同,表面接点位于不同位置并且电气接口不同。 Depending on the ISO / IEC7816 standard made cards and SD card and MMC card shape, surface contacts in different locations and different electrical interfaces. ISO/IEC 7816标准具有“识别卡-带有接点的集成电路(组)卡”的概括标题并且由分别带有从1994年到2000年的日期的1-10部分组成。 ISO / IEC 7816 standard with the "identification cards - Integrated circuit with contacts (group) Card" summarized by the title and 1-10, respectively, with a composed part from 1994 to 2000 dates. 可以从端士日内瓦的ISO/IEC得到其拷贝的该标准特地收录在此作为本文的参考文献。 You can obtain a copy of the standard from the end with disabilities Geneva ISO / IEC specifically included in the documents incorporated herein by reference. ISO/IEC 7816卡尤其在必须安全地存储数据从而在未经授权情况下极难或者不可能读出该数据的应用中是有用的。 ISO / IEC 7816 cards are especially to be safely stored data in order to be extremely difficult in the case of unauthorized use or impossible to read this data is useful.

小型ISO/IEC 7816卡的一种通常使用是在电子系统中防止盗窃和/或未授权使用,在这种情况下该卡存储对用户或者对电子系统专用的安全代码。 One common use of small ISO / IEC 7816 cards in an electronic system to prevent theft and / or unauthorized use, in which case the card stores the user-specific electronic systems or security code. 例如,安装在车辆中的无线电设备是一种类型的电子系统,其中要使该设备工作时需要输入对该无线电设备专用的安全代码。 For example, radio equipment mounted in a vehicle is a type of electronic system, wherein the time required to make the device work input to the radio device-specific security code. 在一种方案中,该无线电设备内设置一个电路,当断开电池时其使该无线电设备不能工作的。 In one approach, set within a circuit of the radio device, disconnect the battery when it makes the radios do not work. 从而,为了再次使该无线电设备工作需要输入唯一的安全代码。 Thus, in order to once again make the radios work only need to enter the security code. 一种提供该安全代码的方法是把它存储在小型ISO/IEC 7816卡上并且在该无线电设备上设置一个其中可插入该卡的卡槽。 A method of providing the security code is to store it in a small ISO / IEC 7816 card can be inserted and wherein a set of the card slot on the radio device. 在该无线电设备中安装从该卡中读出代码的电路,该电路把该代码和该特定无线电设备的唯一代码进行比较,如果这二个代码匹配,则在再次连接电池后再次使该无线电设备能够运行。 Mounted in the radio device is read out from the card code circuit which the unique code and the code of the particular radio device are compared and if these two codes match, then again after the battery is connected again so that the radio equipment to run.

发明内容 SUMMARY

主电子系统的单个卡插座可以和一个或者多个遵照现有的一二种或更多种不同卡标准的可移动的插入卡交互作用,其中这些不同的卡标准由于卡的物理形状、外部接点的排列以及电信号接口的不同而彼此不兼容。 Single card socket master electronic system can be in accordance with one or more existing or two or more different kinds of card standard removable insert card interaction, wherein the different card standards due to the physical shape of the card, external contact different arrangements and electrical interfaces and incompatible with each other. 例如,一些数据,如唯一安全代码可以由遵照最适用于处理这种数据的ISO/IEC 7816的系统读出,而其它数据,如用户数据或操作程序可以由遵照为此目的设计的MMC或SD卡标准的系统读出。 For example, some data, such as a unique security code may be made in accordance with the most suitable for processing ISO / IEC 7816 system this data is read out, and other data, such as user data or may be made in accordance with the procedure designed for this purpose MMC or SD The system reads the card standard. 但是,本发明不受使用任何特殊的卡标准或者遵照现有卡标准存储的数据类型的限制。 However, the present invention is not limited to any particular card used in accordance with existing standards or standard memory card data type restrictions.

在一具体实施例中,一种类型的卡的物理标准改变成和另一种类型的卡的物理标准一致,并且接着把每种类型的卡分别形成在一个具有其他类型卡的物理特征的组件中。 In one particular embodiment, the physical standard of cards of one type and changed to another type of physical standard card coincide, and then put each type of card are formed in a component having a physical characteristic of other types of cards in. 例如,把遵照ISO/IEC 7816标准的卡在物理上改变成具有由相关的MMC或SD卡标准所规定的相同的形状以及相同的引脚位置,使该电子系统的插座符合该卡标准。 For example, to comply with ISO / IEC 7816 standard card is physically changed to have the same shape from the related MMC or SD Card standards required and the same pin location, so that the electronic system of the receptacle conforms to the card standard. 从而该电子系统的单个插座可接受二种或更多种的卡。 Whereby a single receptacle of the electronic system of two or more kinds of acceptable cards.

在另一具体实施例中,在具有二个或更多卡标准中之一的物理尺寸和电气接点位置的单个卡上组合遵照这些卡标准的功能。 In another particular embodiment, the single card having two or more physical dimensions and electrical contact position of one of the standard card in accordance with the standard combination of functions of these cards. 例如,可以把遵照相关的MMC或SD卡标准的卡修改成包含着遵照ISO/IEC7816标准的卡的电路,并且二个或更多不同标准的电气功能共享一组共用的卡接点。 For example, you can put comply with the relevant standard MMC or SD card card card modified to comply with the circuit contains ISO / IEC7816 standard, and two or more different standard electrical functions share a common set of card contacts.

这些实施例有许多应用。 These embodiments have many applications. 例如,在车辆无线电设备中,一个卡插座适应于接受含有安全代码的卡和接受含有音乐数据的存储器卡,当通过正确的安全代码启动后可以通过该车辆的音频系统再现该音乐。 For example, in a vehicle radio equipment, a card socket adapted to receive a card containing a security code and receive a memory card containing the music data, when the correct security code by the start of the music can be reproduced through the vehicle's audio system. 在另一个例子中,便携式电子设备,例如手持计算机、个人组织器、蜂窝电话等,具有一个卡插槽,该卡插槽接受含有应用程序的不时改变的一部分的卡或者含有供一应用程序使用的数据的卡,此外该卡插槽还接受一块含有能使该设备中的该应用程序操作的安全代码的卡。 In another example, the portable electronic device, such as a handheld computer, a personal organizer, a cellular telephone, having a card slot, the card slot accepts cards containing a portion of the application to change from time to time, or for an application to use containing data cards, in addition to the card slot also accepts one can make the device containing the application operation of the card security code. 在另一个例子中,GPS接收器卡插槽接受一块含有用户安全代码的卡以便启动该接收器的操作,以及接受含有该接收器操作中使用的数据的卡,以便确定位置等等。 In another example, GPS receiver card slot to accept a card containing a user security code in order to initiate the operation of the receiver, and accepts cards containing data used in the operation of the receiver in order to determine the position and so on. 在每种情况中,可以在同一卡上交替地含有应用数据和安全代码。 In each case, may alternately contain application data and the security code on the same card.

在这些应用中,当使用独立的卡时,可以把安全代码存储在一块容量低且相对便宜的存储器卡上,该设备的拥有人通常应在一个可靠场所与该电子设备分开地保存该卡。 In these applications, when using a separate card, you can put on a low-capacity memory card and relatively inexpensive, the owner of the equipment shall normally be stored separately from the card security code is stored in a secure place and the electronic device. 然后使用类型相同但存储量更大的一块或多块不同的存储器卡存储相关联的数据。 Then use the same type but larger amounts of one or more blocks stored in different memory card storing data associated. 该电子设备内的电路在读插在槽中的卡时区分安全代码和关联数据并且相应地使用该数据。 The circuit of the electronic device at the time of reading the card inserted in slot distinguish security code and associated data and use the data accordingly.

附图说明 Brief Description

从下面将结合各附图的说明,本发明的其它特征和优点会变得清楚。 From the following description in conjunction with the accompanying drawings Other features and advantages of the invention will become apparent.

图1示出安装在车辆的操纵板中的一个无线电设备,以作为应用本发明的电子设备的一个例子;图2是图1的车辆无线电设备中使用的当被盗时使该无线电设备不能运行的安全系统的示意图;图3是图1的车辆无线电设备的改进型安全系统的示意图,其中该无线电设备还接收数字音频数据用于通过该设备再现;图4是作为使用具有不同接口标准的卡的系统的一部分的卡接口的示意图;图5示出当图4的卡为遵照MMC或SD卡接口标准的闪速存储器卡时该卡的引脚连接;图6示出图4的卡为遵照ISO/IEC 7816接口标准时该卡的引脚连接;图7是含有MMC或SD卡标准的功能并且含有ISO/IEC 7816标准的功能的单块卡的方框图;以及图8示出图7的组合卡的使用。 Figure 1 shows a radio apparatus installed in a vehicle steering plate, as an example of application of the electronic apparatus of the present invention; FIG. 2 is a view of a vehicle radio device 1 is used so that the radio equipment is not running when the stolen a schematic diagram of the security system; FIG. 3 is a schematic view of a vehicle radio device 1 improved safety system, wherein the radio device also receives digital audio data for reproduction by the apparatus; Fig. 4 is a card having a different interface standard schematic of a portion of the card interface system; FIG. 5 shows a diagram when the card 4 is connected to the pin of the card when the MMC or SD card interface in accordance with standard flash memory card; Fig. 6 shows the card of Figure 4 is in accordance with ISO / IEC 7816 interface standard pin connector when the card; Fig. 7 is a block diagram containing the MMC or SD card standard functionality and containing ISO / IEC 7816 standard features monolithic card; and Figure 8 shows a combination of card 7 of FIG. use.

具体实施方式 DETAILED DESCRIPTION

为了示出上面概述的本发明的一种具体应用,下面给出汽车无线电设备例子的细节。 To illustrate a specific application of the present invention outlined above, the following examples are given details of the radio equipment of cars. 图1示出安装在机动车,例如客车的操纵板13中的无线电设备11。 Figure 1 shows the installation in a motor vehicle, the steering plate 13 in the radio equipment 11. 该无线电设备内的音频放大器驱动也安装在该车中的二个或更多的扬声器15和17。 An audio amplifier to drive the radio device is also mounted inside the car to two or more speakers 15 and 17. 该无线电设备内的调谐器向该放大器提供来自无线电台的信号。 A tuner device within the radio signal to the amplifier from the wireless station provides. 该无线电设备中还可以包括音频盒带和/或光盘播放机以作为用于该放大器以及扬声器的其它音频信号源。 The radios can also include audio cassettes and / or CD player as other audio source for the amplifier and speakers.

无线电设备11具有常用的齐全控制和显示。 11 radios equipped with a common control and display. 另外,在无线电设备的正面上包括一个容纳标准非易失性存储器卡的插槽19。 Further, on the front side of the radio device comprises a standard non-volatile memory card receiving slot 19. 示出了二个这样的卡21和23。 Shows two such cards 21 and 23. 插槽19内含有模式和这种存储器的接点相同的电气接点,从而一旦把卡全部插入到该插槽中就建立起该无线电设备和该存储器卡的内容之间的电连接。 Slot 19 contacts the same electrical contacts contain patterns and this memory, so once the card is fully inserted into the slot to establish an electrical connection to the radio equipment and contents of the memory card between. 当从该插槽中取出该卡时,这种连接断开。 When removing the card from the slot, this disconnect.

一种类型的适应于用作为卡21和23的存储器卡是市面上可买到的MCC卡。 One type of card is adapted to be used as the memory cards 21 and 23 are commercially available in the MCC card. 可以替代地使用是更新的相关的SD卡。 Can alternatively be used to update the associated SD card. 备选地,可以使用较大的小型闪存卡。 Alternatively, you can use the larger Compact Flash cards. 这些卡产品的每一种都包括一个半导体闪速EEPROM系统并且由数个厂家制造,其中包括作为本申请的受让人的位于加州Sunnyvale的SanDisk公司。 Each of these cards includes a semiconductor flash EEPROM systems and manufactured by a number of manufacturers, including, as the assignee of the present application SanDisk Corporation of Sunnyvale, Calif. 可以替代地采用其它类型的非易失存储器卡。 May alternatively be other types of non-volatile memory card. 在插槽19中设置的机械和电气接口做成和所选类型卡的要求相符。 Consistent with the requirements set in the slot 19 in the mechanical and electrical interfaces made and the selected type of card.

图2中示出利用一个这样的卡25存储安全代码。 Figure 2 shows the use of one such card 25 stores the security code. 当把卡25插入到无线电设备的插槽19中时,插槽19内的各接点和卡25上的电气端子连接。 When the card 25 is inserted into the slot 19 in the radio device when the contacts within the slot 19 and the card terminal 25 is electrically connected. 无线电设备11内的安全电路27接着从该卡接收代码数据并且把该代码和一个内部存储的对具体无线电设备为唯一的代码比较。 Radio equipment within the safety circuit 11 then receives 27 code data from the card and the comparison to a unique code of the code and an internal storage of specific radio equipment. 该内部代码可以存储在少量的非易失性存储器,例如只读存储器(ROM)中,其作为该无线电设备电路的一部分。 The internal code can be stored in a small amount of non-volatile memory, such as read only memory (ROM), which as part of the radio device circuit. 如果发现这些代码是相同的,接着安全电路27启动该无线电设备的剩余部分31,其中包括驱动扬声器15和17的音频放大器、调幅和调频无线电调谐器以及光盘和/或磁带放音装置的运行。 If the code is the same, then start the remainder of the safety circuit 27 of the radio device 31, which includes a driving speaker 15 and audio amplifier 17, AM and FM radio tuner and an optical disk and / or tape playback operation of sound apparatus. 一旦启动该无线电设备,则从插槽19中取出卡25。 Once you start the radio equipment, remove the card from the slot 19, 25.

图3中示出利用该卡设施输入除安全代码之处的音频数据,例如音乐。 Figure 3 shows the use of the card in addition to the audio data input facility of the Department of the security code, such as music. 添加一个用于和插入到插槽19内的卡直接电气连接的卡接口电路33。 And for adding a card inserted into the slot 19 is directly electrically connected to the card interface circuit 33. 该接口电路33把插入卡的各个端子和安全电路27以及无线电部分31′两者连接,后二者中的每一个判定插入的卡是否含有用于它的数据。 The interface circuit 33 and the respective terminals inserted card safety circuit 27 and a radio portion 31 'connecting the two, the latter two of each of the inserted card is determined whether it contains data for it. 例如,卡35含有由安全电路27使用的唯一安全代码,而卡37含有由无线电部分31′使用的音频数据。 For example, the card 35 contains a unique security code to be used by the secure circuit 27, and the card 37 contains audio data from the radio section 31 'used. 当把卡35插入到插槽19中时,安全电路27接着如上面参照图2说明那样操作。 When the card 35 is inserted into the slot 19, the safety circuit 27 as described above is then operated as described with reference to FIG. 如果把卡37插入到插槽19中,无线电部分31′接收存储数据并且通过扬声器15和17播放音频内容。 37 If the card is inserted into the slot 19, the radio section 31 'receives store data and play audio content through the speakers 15 and 17. 无线电部分31′包括用于将来自卡37的数字音频数据转换成接着由该无线电部分31′内的放大器放大的音频信号的电路。 Radio portion 31 'includes a digital audio data from the card 37 is then converted into the radio section 31 from the' amplifier circuit within the amplified audio signal.

存储器卡37上存储的音频数据通常大多数是音乐,并且实际上为了在单块卡上存储尽可能多的音乐,是以压缩形式进行存储,例如通过采用常见的MP3压缩算法存储。 The audio data stored on the memory card 37 is usually mostly music, and actually on a single card to store as many music, stored in a compressed form, for example, by the use of common MP3 compression algorithm storage. 当被压缩时,该卡接口电路33还包括用来解压缩数字音频数据的信号处理器。 When compressed, the card interface circuit 33 further includes a signal processor for decompressing digital audio data. 无线电设备11中可以包括多于一个的用来接收多个各自含有音乐数据文件的存储器卡的插槽,以便在不必重复或不必更换卡的情况下进一步延长音乐的播放时间。 Wireless device 11 may include more than one for receiving a plurality of music data files each containing a memory card slot, so that in the case of having to replace the card need not be repeated or further extend the playback time of music.

音频数据卡37是也可以包含在无线电设备11中的光盘及磁带放音装置的一种替代。 Audio data card 37 is also be included as an alternative in the radio device 11 and the optical disk playback apparatus of the magnetic tape. 它的使用提供一种向汽车无线电设备11传送音乐的方便方法。 Its use provides a 11 to car radios convenient way to transfer music. 例如,通过用户从因特网下载数据或者从光盘或别的源转录,可以把数字音乐数据存储到卡37上。 For example, by user or from the Internet to download data from a CD or other source of transcription, can store digital music data to the card 37. 可以同时使用多个这样的卡,其中每个卡含有不同的音乐。 Can use a plurality of such cards, wherein each card containing a different music. 可以通过擦掉它的数据并且在上面重写新数据反复地使用每个音频数据卡。 It can be erased in the above data and rewriting new data is repeatedly used for each audio data card. 该音频数据卡最好具有可存储通常由光盘提供的音乐量的容量。 The audio data card preferably has a capacity to store music amount of a normally provided by the optical disk. 例如,当把数据压缩到原始源数据量的10%时,可在具有64兆字节容量的一块卡上存储大约一小时长的音乐。 For example, when data is compressed 10% of the amount of data to the original source, may have a length of approximately one hour of music storage capacity of 64 megabytes on a card. 但是,含有安全代码的卡35只需要具有非常小的容量,例如只有一千或几千字节。 However, the card containing the security code 35 needs to have a very small capacity, e.g., only a thousand or a few thousand bytes. 这样安全代码卡就可以是非常便宜的。 Such security code card can be very cheap.

除汽车无线电设备之外的各种电子设备也可以带有具有这二种职能的存储器卡插槽。 In addition to car radios with a variety of electronic devices may also have these two functions of the memory card slot. 在这样的其它设备中也包括与卡接口电路块33相似的部分以便和安全代码数据以及和由该电子设备使用的关联内容数据接口,以便由该安全代码启动完成某种功能。 In such other equipment also includes 33-card interface similar parts for circuit blocks and security code data and associated content and data interface used by the electronic device to be initiated by the security code to complete certain functions. 该安全代码被应用到安全电路,且该关联数据被应用到该电子设备的一个部分上,该部分执行通过接收正确安全代码而启动的功能或操作。 The security code is applied to the safety circuit, and the associated data is applied to a portion of the electronic device, the portion is performed by receiving a correct security code is activated functions or operations.

参照图4更详细地说明一个出于种种理由中的任何理由和遵循二种不同标准的卡接口的系统。 Referring to FIG. 4 described in more detail in a variety of reasons, for any reason, and follow two different standard system card interface. 物理上,卡51具有带有表面电气接点1-7的MMC卡的物理形式。 Physically, the card 51 has the physical form of the electrical contact with the surface of 1-7 MMC card. 可以替代使用在平面图中尺寸相同并具有相同接点1-7和附加的表面接点8、9的SD卡。 May be used instead of the same size in plan view and have the same 1-7, and the additional contact surfaces 8,9 of the SD card contacts. 在这二种情况的任一种中,插座53包括用于只接受MMC卡的配合接点1-7,并且任选地具有附加接点8、9以便能和MMC卡或者SD卡一起运行。 In either of these two cases, the receptacle 53 includes means for mating only accept the MMC card contacts 1-7, and optionally with additional contacts 8, 9 in order to MMC card or SD card and run together. 电路55和57应用遵照所接受的二种不同卡标准的不同卡中的唯一电气内容。 Circuits 55 and 57 applied in accordance with accepted standards of two different cards of different card's unique electrical content. 一种这样的卡是不必修改的MMC卡或SD卡,如图5中所示。 One such card is not necessary to modify the MMC card or SD card, as shown in Fig. 另一种这样的卡是物理形状以及各接点位置与MMC卡或和SD卡相同的但几乎所有其它方面遵循ISO/IEC 7816标准的卡,如图6中所示。 Another such card is the physical shape and the position of the contacts and the SD card or MMC card but almost the same in all other respects follow the ISO / IEC 7816 standard card, as shown in Fig. 应用电路55和57可以分别专用于和一种卡类型运行,或者替代地可以通过单个微处理器或微控制器电路实现。 Application circuit 55 and 57 may be respectively dedicated to the card type and one run, or alternatively by a single microprocessor or microcontroller circuits.

如图5中所示,MMC卡和SD卡包括闪速存储器59和存储器控制器61。 Shown in Figure 5, MMC card and SD card including a flash memory 59 and the memory controller 61. 图中还示出遵照MMC卡标准和SD卡标准的由外部卡接点传送给控制器件61的电信号,这些电信号如下:MMC/SD接点编号MMC信号SD卡信号1 当在SPI方式下运行 数据线(DAT3)时的片选(CS)2 命令/响应(CMD) 命令/响应(CMD)3 低压电源(GND) 低压电源(GND)4 高压电源(VDD) 高压电源(VDD)5 时钟(CLK) 时钟(CLK)6 低压电源(GND) 低压电源(GND)7 数据线(DAT) 数据线(DAT0)8 …… 数据线(DAT1)9 …… 数据线(DAT2)对于MMC卡,在与7号接点连接的单根信号线上串行地传输卡和主机之间的数据,而四条数据线分别连接到SD卡的1、7、8和9号接点上。 The figure also shows an electric signal in accordance with the standard MMC card and SD card standard transmitted by the external card contacts to the control device 61, these electrical signals as follows: MMC / SD Contact No. MMC signal SD card 1 when the operating data signal in SPI mode chip select line (DAT3) when (CS) 2 command / response (CMD) command / response (CMD) 3 low-voltage power supply (GND) low voltage power supply (GND) 4 high voltage power supply (VDD) high-voltage power supply (VDD) 5 clock (CLK ) Clock (CLK) 6 low voltage power supply (GND) low voltage power supply (GND) 7 data line (DAT) data lines (DAT0) 8 ...... data line (DAT1) 9 ...... data line (DAT2) to the MMC card, and 7 data between a single serial signal transmission line card and the host number contact connection, and four data lines are connected to the SD card contacts on 1,7,8 and 9. 但是,为了与为MMC卡设计的系统或者在不需要高数据传输率的其他场合下兼容,SD卡也能在和它的7号接点连接的单条数据线上运行。 However, for compatibility with a system designed for the MMC card or in the case does not require high data rates on other occasions, SD card can also be run in the 7th and its contacts connected to a single data line. 和每个卡的2号接点连接的一条信号线传送来自主机的操作命令并且把卡的响应(状态)回送给主机。 A signal line and the 2nd contact each card connected to the command transmitted from the host and the card's response (state) back to the host. 主机向每种卡的5号接点提供时钟信号,但各种卡的时钟频率可能不同。 Host provides a clock signal to the 5th of each contact card, but a variety of card clock frequency may vary. 剩余的3、4和6号接点接收来自主机的运行电压。 The remaining 3,4 and 6 contacts receives operating voltage from the host.

如图6所示,遵照ISO/IEC 7816标准的卡具有不同模式的表面接点,该接点中的一些执行与MMC或SD卡不同的功能。 As shown in Figure 6, in accordance with ISO / IEC 7816 standard card having a different mode of surface contact, the contact is performed in some of the MMC or SD card with different functions. 该ISO/IEC7816卡遵照MMC或SD卡标准被再包装,包括使用与ISO/IEC 7816标准接点连接的外部接点的MC或SD卡模式,这些接点如下所述:MMC/SD ISO/IEC 7816 ISO/IEC 7816信号接点编号 接点编号1 C2 复位(RST)2 C7 输入输出(I/O)3 C5 低压电源(GND)4 C1 高压电源(Vcc)5 C3 时钟(CLK)6 C5 低压电源(GND)7 …… ……8 …… ……9 …… ……请注意,图6中根据ISO/IEC 7816标准高、低压电源接点C1、C5以及时钟信号C3连接到相同的MMC或SD卡外部接点3、4、5和6,因为它们用于图5的闪速存储器。 The ISO / IEC7816 compliance MMC card or SD card standard is repacked, including the use of the ISO / IEC 7816 standard contact connected to external contacts of the SD card MC or mode, the contacts follows: MMC / SD ISO / IEC 7816 ISO / IEC 7816 signal contacts No. 1 C2 contact number is reset (RST) 2 C7 input-output (I / O) 3 C5 low voltage power supply (GND) 4 C1 high voltage power supply (Vcc) 5 C3 clock (CLK) 6 C5 low voltage power supply (GND) 7 8 ...... ...... ...... ...... ...... ...... 9 Note that in FIG. 6 according to ISO / IEC 7816 standard high and low voltage power contacts C1, C5 and C3 is connected to the same clock signal the MMC or SD card external contact 3, 4, 5 and 6, because they are used for a flash memory 5 of FIG. ISO/IEC 7816标准是修改的,从而含有图6的ISO/IEC 7816标准卡的卡51插入图4的插座53会提供适当的按照ISO/IEC 7816标准的电源和时钟。 ISO / IEC 7816 standard is modified so as to contain the card 51 of FIG ISO 6 / IEC 7816 standard card inserted into the socket 53 of Figure 4 will provide appropriate follow ISO / IEC 7816 standard power and clock. 在所示出的布局中,图6中的卡只读,从而没有编程电压与ISO/IEC 7816标准的接点C6连接。 In the layout illustrated in FIG. 6 card read-only, so that no programming voltage and ISO / IEC 7816 standard contact C6 connection. 当然,图6中的接点C1-C8实际上不必在卡51的格式内形成,而是把由这些接点号标识的信号直接从操作电路连接到卡51的各外部接点上。 Of course, FIG. 6 need not actually contact C1-C8 in the format of the card 51 is formed, but the connection to these signals by a number that identifies the contacts of the card directly from the operating circuit 51 of the respective external contacts.

如图6中所示,ISO/IEC 7816标准的可操作的复位和输入/输入信号接点C2和C7分别和MMC或SD卡的接点1和2连接。 Shown in Figure 6, ISO / IEC 7816 standard operable reset and input / output signal contacts C2 and C7, and contacts MMC or SD card 1 and 2 are connected, respectively. 这些卡接点以及时钟信号卡接点5通过图4的开关逻辑电路63与应用电路55连接。 These cards contact card and a clock signal contacts 5 by switching logic circuit diagram and application circuit 4 63 55 connections. 类似地,图5中的卡的片选、命令/响应、时钟和数据接点1、2、5和7通过开关逻辑电路65(图4)与应用电路57连接。 Similarly, Figure 5 is chip-select cards, command / response, clock and data contacts 2,5 7 connected via switching logic circuit 65 (FIG. 4) and 57 and the application circuit. 每个应用电路55和57提供它自己的时钟信号,从而它们的图6和图5中的卡可以分别在不同的时钟频率下运行。 Each application circuits 55 and 57 to provide its own clock signal, such that their Figures 6 and 5, respectively, the card can be run at different clock frequencies. 当然,如果图5和6中的卡可以最佳地在相同的时钟频率下运行,则卡接点5和一个公共的时钟源连接而不经过逻辑电路63和65。 Of course, if in Fig. 5 and 6 cards may best be run at the same clock frequency, the card contact 5 and a common clock source is connected without passing through the logic circuits 63 and 65. 当应用电路55或57识别插入到插座中的卡是该电路设计成操作的那种卡时,该电路使开关逻辑电路63或65中的适当的一个通过插座53的各接点和它连接。 When the application identification circuit 55 or 57 is inserted into the receptacle of the circuit card is designed to be operated when the kind of card, the logic circuit causes the switching circuit 63 or 65 in the appropriate one of the contacts through the socket 53 and its connection. 插座53的电源接点3、4和6与适当的VDD和VSS(GND)源连接。 Mains socket contacts 53 3,4 and 6 with the appropriate VDD and VSS (GND) source.

当作为许多可能应用中的一种把图4的电路用于提供内容应用的安全控制时,应用电路55按照ISO/IEC 7826标准(图6)从插入插座53中的卡读出安全代码。 When used as one of many possible applications of the circuit of Figure 4 for providing secure content control application, the application circuit 55 in accordance with the ISO / IEC 7826 standard (Fig. 6) from a card inserted into the socket 53 of the security code is read out. 该读出的安全代码接着和作为应用电路55一部分的一个存储的代码比较。 Security code, and then read out the application circuit as a part of the code stored in 55 comparisons. 如果该比较结果是肯定的,则利用来自根据MMC或SD卡标准(图5)的非易失性存储器卡的数据启动应用电路57的操作。 If the comparison result is affirmative, the operation of the application circuit using the data starting from 57 according to MMC or SD card standard (FIG. 5) of the non-volatile memory card. 压缩的数字音频在由电路57应用的MMC或SD卡内容的多种选择之内。 Compressed digital audio in a variety of applications selected by the circuit 57 MMC or SD card content of. 参照图1-3说明的实施例是图4-5的电路的这种具体应用的一个例子。 Described with reference to Figures 1-3 embodiment is an example of this particular application of the circuit of Figure 4-5.

作为一种对使用遵照二种不同标准的单独卡的替代,可以如图7中所示那样的把图5和6的卡的功能组合成单个的遵照MMC或SD卡标准的物理结构中。 For use as a standard in accordance with two different alternative separate card, may be shown in Figure 7 as the combination of Figures 5 and 6 the function of the card into a single compliance MMC or SD card standard physical structure. 非易失性存储器控制器61′和遵照ISO/IEC7816标准的电路62′被连接到与上面所说明的接点相同的图7的卡的外部接点1-7,其中的区别是二者都永久地和单块卡的这些接点连接。 Non-volatile memory controller 61 'and in accordance with ISO / IEC7816 standard circuit 62' is connected to the same contacts as described in Figure 7 above the external contacts of the card 1-7, wherein the difference is both permanently and these contacts monolithic card. 它的优点是用户不需要使用二个或更多的卡以便具有遵照二种或更多的不同卡标准的卡的能力。 The advantage is that users do not need to use two or more cards in order to have the ability to comply with two or more different card standard card. 如图8示出的系统可以访问插入到插座53′中时的图7的二种标准卡的各个部分。 The system shown in FIG. 8 can be accessed when inserted into the receptacle of FIG. 53 'of two parts of a standard card 7. 电路55′使用电气上和功能上满足ISO/IEC 7816标准条款的部分62′,同时电路57′使用存储在非易失存储器59′中的数据。 Circuit 55 'using electrically and functionally meet some 62 ISO / IEC 7816 standard clauses', while data circuits 57 'stored in the nonvolatile memory 59' in. 这例如可以应用于通过ISO/IEC 7816标准提供安全代码并且通过MMC或SD卡提供压缩的音频数据,以便利用单块卡实现上面参照图1-3说明的各种技术。 This example can be applied to provide a security code by ISO / IEC 7816 standard and provides audio data compression by MMC or SD card, so that use of a single block of cards to achieve the above with reference to various techniques described in Figures 1-3. 可以替代地通过一台主计算机、通过一个专用于该用途的微型计算机或者通过适合该特定应用的其它设备来完成应用电路55′和57′的功能。 May alternatively by a host computer, through the use of a dedicated microcomputer or to complete the application circuit 55 'and 57' by a suitable function of the particular application of the other device.

尽管已经参照一具体实施例说明了本发明,但应理解,本发明受到其权利要求所限定的全部范围的保护。 Despite reference to a specific embodiment of the invention has been described, it is to be understood that the invention defined by the claims by their full scope of protection.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
CN100487728C30 Dec 200613 May 2009凤凰微电子(中国)有限公司Smart card of supporting high performance computing, large capacity storage and high-speed transmission
CN101566980B23 Apr 20085 Sep 2012锐迪科微电子(上海)有限公司Method for multiplexing interface of SD card and SD card with expanded function
Classifications
International ClassificationG06K7/00, G06K19/077, G06K17/00
Cooperative ClassificationG06K19/07732, G06K19/07739, G06K19/0719, G06K19/07733, G06K19/077, G06K7/0013, G06K19/07743, G06K7/0008
European ClassificationG06K19/077E7, G06K19/077G2, G06K19/07G, G06K19/077E8, G06K19/077K, G06K7/00E, G06K7/00K, G06K19/077
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