Use of small electronic circuit cards with different interfaces in an electronic system

• US 6,824,063 B1
• Filed: 08/04/2000
• Issued: 11/30/2004
• Est. Priority Date: 08/04/2000
• Status: Expired due to Term

• Current Assignee: SanDisk Technologies LLC (Western Digital Corporation)
• Original Assignee: SanDisk Corporation (Western Digital Corporation)
• Inventors: Wallace, Robert F., Brewer, Wesley G., Pinto, Yosi
• Primary Examiner(s): Frech, Karl D.
• Application Number:
  US09/633,089
• Time in Patent Office: 1,579 Days
• Field of Search: 235/492, 235/380, 235/487, 235/382, 235/441, 902/2, 902/26
• US Class Current: 235/487
• CPC Class Codes: G06K 19/0719 at least one of the integrated circuit chips comprising an arrangement for application selection, e.g. an acceleration sensor or a set of radio buttons application selection on smart cards using pure software control, see G07F7/10
• CPC Class Codes: G06K 19/077 Constructional details, e.g. mounting of circuits in the carrier
• CPC Class Codes: G06K 19/07732 the record carrier having a housing or construction similar to well-known portable memory devices, such as SD cards, USB or memory sticks housings for electrical equipment in general, see H05K5/02
• CPC Class Codes: G06K 19/07733 the record carrier containing at least one further contact interface not conform ISO-7816
• CPC Class Codes: G06K 19/07739 comprising a first part capable of functioning as a record carrier on its own and a second part being only functional as a form factor changing part, e.g. SIM cards type ID 0001, removably attached to a regular smart card form factor
• CPC Class Codes: G06K 19/07743 External electrical contacts
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/0013 by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers connectors in general H01R13/00; connectors for SIM cards used in mobile phones or the like H04B1/3816

Abstract

Electronic systems, such as automobile radios, portable and other computing devices, and global positioning system receivers, often require that a correct security code be inputted from a small memory card that is removably inserted into a card slot of the system before the system is rendered operable in total or in part, or before certain data can be retrieved. The same type of memory card is also used to store digital data that is utilized by the system in conjunction with its function that is enabled by the security code, such data cards being removably inserted into the same card slot as the card containing the security code. Alternately, both the utilization data and the security code are included on a single card. An example application is an automobile radio wherein data supplied by the second card are of music that is reproduced through the radio'"'"'s audio system.

Claims

1. An electronic device, comprising:

an electronic system that performs at least one designated function,

a stored security code,

a receptacle into which at least one type of non-volatile memory card is removably insertable,

a circuit connected to said receptacle to receive a security code from a memory card inserted into said receptacle and enable the electronic system to perform said at least one designated function when the received security code matches the stored security code, and

another circuit connected to said receptacle to receive data from a memory card inserted into said receptacle and supply that data to the electronic system for use in the performance of said at least one designated function.

2. The electronic device of claim 1, additionally comprising first and second memory cards, said first card containing the security code and the second card containing the data.

3. Sound apparatus, comprising:

at least first and second memory cards that each have a given physical format and pattern of electrical contacts from which data stored therein can be read, and

an audio unit for installation in a vehicle, including;

an audio amplifier,

a slot to receive insertion of one of the memory cards at a time and contact the given pattern of electrical contacts of an inserted memory card,

a security circuit connected with the slot that enables operation of the audio unit in response to a specific security code for the radio, and

a card interface circuit connected with the slot to provide a security code to the security circuit and audio data to the audio amplifier according to data contained on a card inserted in the slot,

said first memory card containing security code data to which the security circuit responds when the first memory card is inserted into the slot and the second memory card containing audio data to which the audio amplifier responds when the second memory card is inserted into the slot to reproduce sound according to the audio data.

4. An electronic card, comprising:

an external physical shape and an arrangement of electrical contacts on an outside surface of the card according to a first published card standard, said card electrical contacts being accessible for contact with a receptacle into which the card may be removably inserted,

at least a first integrated circuit chip enclosed within the card that is electrically connected with the external contacts according to the first published card standard in order to provide non-volatile storage of data passing through at least one of the external card contacts,

at least a second integrated circuit chip enclosed within the card that implements a second published card standard specifying an external physical shape and an arrangement of electrical contacts on an outside surface of a card that are different from those of the first published card standard and which provides a security function, and

electrical conductors within the card connecting the second integrated circuit chip to common ones of the external card contacts to which the first integrated circuit chip is connected in order to provide for access of said security function therethrough.

5. The electronic card of claim 4, wherein the first published card standard is one of MMC or SD cards and the second published card standard is ISO/IEC 7816.

6. The electronic card of claim 4, wherein the card outside electrical contacts are positioned on a surface of the card along only an edge thereof.

7. The electronic card of claim 6, wherein the first integrated chip includes a controller of the non-volatile storage that has at least command, clock, voltage supply and data lines connected therewith,

the second integrated circuit chip has at least input/output, clock and voltage supply lines, and

the command line of the first chip and the input/output line of the second chip are both electrically connected to a first of the external card contacts, the clock line of the first chip and the clock line of the second chip are both electrically connected to a second of the external card contacts, the voltage supply line of the first chip and the voltage supply line of the second chip are both electrically connected to a third of the external card contacts, and the data line of the first chip is connected to a fourth of the external card contacts without a connection of the second chip to the fourth external card contact.

8. An electronic card system, comprising:

(1) an electronic card, including;

an external physical shape and an arrangement of a predetermined number of electrical contacts on an outside surface of the card according to a first published card standard,

at least a first integrated circuit chip enclosed in the card that is electrically connected with the external contacts according to the first published card standard in order to provide non-volatile storage of data passing through at least one of the external card contacts,

at least a second integrated circuit chip enclosed in the card that implements a second published card standard specifying an external physical shape and an arrangement of electrical contacts on an outside surface of a card that are different from those of the first published card standard and which provides a security function, and

electrical conductors within the card connecting the second integrated circuit chip to common ones of the external card pins to which the first integrated circuit chip is connected in order to provide for access of said security function therethrough, and

(2) a utilization device for the card, including;

a socket for removably receiving the card and having contacts that connect with each of the predetermined number of external card contacts when the card is inserted into the socket,

first electronic utilization circuits connected to the socket contacts that operate the card to store data therein, and

second electronic utilization circuits connected to the socket contacts that operate the security function of the card.

9. The electronic card system of claim 8, wherein the card outside electrical contacts are positioned on a surface of the card along only an edge thereof.

10. An electronic card, comprising:

an external physical shape and an arrangement of electrical contacts on an outside surface of the card according to a first published card standard, wherein the contacts are positioned on an external surface of the card adjacent an edge thereof and exposed for external contact,

at least a first integrated circuit chip enclosed within the card that is electrically connected with the external contacts according to the first published card standard including a controller for flash memory within the card, wherein the controller includes a first plurality of signal terminals thereon,

at least a second integrated circuit chip enclosed within the card that implements a second published card standard specifying an external physical shape and an arrangement of electrical contacts on an outside surface of a card that are different from those of the first published card standard, wherein the second chip includes a second plurality of signal terminals thereon, and

electrical conductors within the card connecting at least some of the first and second plurality of signal terminals together to common ones of the external card contacts.

11. The electronic card of claim 10, wherein each of the first and second plurality of signal terminals includes at least one voltage supply terminal that are connected together by the electrical conductors to a first of the card contacts.

12. The electronic card of claim 11, wherein each of the first and second plurality of signal terminals additionally includes at least one terminal through which operating commands are received and which are connected together by the electrical conductors to a second of the card contacts.

13. The electronic card of claim 12, wherein each of the first and second plurality of signal terminals additionally includes at least one terminal that receives a clock signal and which are connected together by the electrical conductors to a third of the card contacts.

14. The electronic card of claim 13, wherein the first plurality of signal terminals additionally includes at least one terminal that transmits data to the flash memory and which is connected by the electrical conductors to a fourth of the card contacts without any of the second plurality of signal terminals being connected by the electrical conductors with the fourth of the card contacts.

15. The electronic card of claim 10, wherein the second integrated circuit chip is a SIM chip.