APPARATUS FOR CONTACTLESS TRANSMISSION OF DATA FROM A MEMORY

• US 20080144650A1
• Filed: 12/11/2007
• Published: 06/19/2008
• Est. Priority Date: 12/19/2006
• Status: Abandoned Application

• Current Assignee: Infineon Technologies AG
• Original Assignee: Infineon Technologies AG
• Inventors: Boch, Robin, Riegebauer, Josef, Gammel, Berndt, Dirscherl, Gerd, Winteler, Till
• Application Number:
  US11/954,085
• Publication Number:
  US 20080144650A1
• Time in Patent Office: Days
• US Class Current: 370/464
• 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 7/10198 setting parameters for the interrogator, e.g. programming parameters and operating modes
• CPC Class Codes: G06K 7/10237 the reader and the record carrier being capable of selectively switching between reader and record carrier appearance, e.g. in near field communication [NFC] devices where the NFC device may function as an RFID reader or as an RFID tag
• CPC Class Codes: G06K 7/10297 arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092 cryptographic protocols H04L9/00; network security protocols H04L63/00; real-time communication protocols in data switching networks H04L65/00; network protocols for data switching network services H04L67/00

Abstract

Apparatus for contactless data transmission according to a predetermined transmission protocol providing control information and payload for a data transmission, with a near field communicator and an interface connected to the near field communicator, the interface being operative to exchange, using a first protocol, data with the near field communicator for the contactless transmission. In this context, the first protocol provides a transmission of control information and payload, the payload of the first protocol including the control information and the payload of the predetermined protocol. The apparatus further includes a module coupled to the interface and being operative to exchange, using the payload of the first protocol, the control information and the payload of the predetermined transmission protocol for the data exchanged contactlessly by the near field communicator.

Claims

1. An apparatus for contactless transmission of data according to a predetermined transmission protocol providing control information and payload for a data transmission, comprising:

a near field communicator;

an interface connected to the near field communicator, the interface being operative to;

using a first protocol, provide data to the near field communicator for the contactless transmission, or

using the first protocol, acquire data received contactlessly from the near field communicator, the first protocol providing a transmission of control information and payload,

the payload of the first protocol including the control information and the payload of the predetermined protocol; and

a module connected to the interface and being operative to

acquire, from the payload of the first protocol, the control information and the payload of the predetermined transmission protocol for the data received contactlessly from the near field communicator or

introduce, into the first protocol, the control information and payload of the predetermined transmission protocol for the data to be transmitted contactlessly from the near field communicator.

2. The apparatus according to claim 1, wherein the near field communicator operates according to ISO 14443-3 or ISO 14443-4.

3. The apparatus according to claim 1, wherein the first protocol includes information identifying the payload as control information and payload of the predetermined transmission protocol.

4. The apparatus according to claim 3, wherein the information is included in a part of the header of a frame of the first protocol, in a part of the payload or in a prior frame as only payload.

5. The apparatus according to claim 1, wherein the first protocol is the SWP (single wire protocol).

6. The apparatus according to claim 1, wherein the predetermined protocol is the Mifare protocol.

7. The apparatus according to claim 6, wherein the predetermined protocol includes Mifare Classic, Mifare Light or Mifare Ultralight.

8. The apparatus according to claim 1, wherein the near field communicator includes an NFC modem.

9. The apparatus according to claim 1, further including a UICC comprising the interface and the module.

10. The apparatus according to claim 1, further including a UICC receiving data according to the first protocol and a chip receiving data according to the predetermined protocol, the UICC and the chip being connected to the near field communicator via the interface, and the chip including the module.

11. The apparatus according to claim 10, wherein the UICC does not react upon receipt of data according to the predetermined protocol at the near field communicator.

12. The apparatus according to claim 9, wherein the UICC is a SIM card functioning as a memory.

13. A data transmission circuit, comprising:

a transceiver module with an interface for a first protocol and an air interface; and

a memory module coupled to the interface for the first protocol and configured to acquire, from the payload of the first protocol, control information and payload of the predetermined transmission protocol for data received via the air interface or to introduce, into the first protocol, the control information and the payload of the predetermined transmission protocol for the data to be transmitted via the air interface.

14. The data transmission circuit according to claim 13, wherein the air interface operates according to ISO 14443-3 or ISO 14443-4.

15. The data transmission circuit according to claim 13, wherein the first protocol is the SWP.

16. The data transmission circuit according to claim 13, wherein the predetermined protocol is the Mifare protocol.

17. The data transmission circuit according to claim 13, wherein the transceiver module includes a NFC modem.

18. The data transmission circuit according to claim 13, wherein the memory module includes a UICC or a SIM card.

19. A Mifare emulator, comprising:

an NFC modem,

an interface connected to the NFC modem, the interface being operative to;

using the SWP data, provide data to the NFC modem for the contactless transmission, or

using the SWP protocol, acquire data received from the NFC modem;

a UICC coupled to the interface for communication via the SWP and comprising a Mifare frame state machine being operative to;

acquire, from the payload of SWP, the Mifare control information and the Mifare payload for the data received from the NFC modem, or

to introduce, into the SWP, the Mifare control information and the Mifare payload for the data to be transmitted from the NFC modem as payload.

20. The Mifare emulator according to claim 19, wherein the NFC modem is formed to communicate according to ISO 14443-3 or ISO 14443-4.

21. A method for contactless transmission of data according to a predetermined transmission protocol providing control information and payload for a data transmission, comprising:

introducing, into a first protocol, the control information and the payload of the predetermined transmission protocol for the data to be transmitted contactlessly, the payload of the first protocol including the control information and the payload of the predetermined protocol; and

using a first protocol, providing the data for the contactless transmission.

23. The method according to claim 21, wherein the first protocol is the SWP (single wire protocol).

24. The method according to claim 21, wherein the predetermined protocol is the Mifare-protocol.

25. The method according to claim 24, wherein the predetermined protocol includes Mifare Classic, Mifare Light or Mifare Ultralight.

22. A method for contactless transmission of data according to a predetermined transmission protocol providing control information and payload for a data transmission, comprising:

using a first protocol, acquiring data received contactlessly, the first protocol providing a transmission of control information and payload, the payload of the first protocol including the control information and the payload of the predetermined protocol; and

acquiring, from the payload of the first protocol, the control information and the payload of the predetermined transmission protocol for the data received contactlessly.