System for interchanging data between at least two contactless data storage media

• US 7,150,407 B1
• Filed: 12/17/2004
• Issued: 12/19/2006
• Est. Priority Date: 06/20/2002
• Status: Expired due to Fees

• Current Assignee: Infineon Technologies AG
• Original Assignee: Infineon Technologies AG
• Inventors: Melchior, Marc, Berger, Dominik
• Primary Examiner(s): Frech, Karl D.
• Assistant Examiner(s): WALSH, DANIEL I
• Application Number:
  US11/016,374
• Time in Patent Office: 732 Days
• Field of Search: 235/379, 235/380, 235/492, 235/441, 235/487, 902/25, 902/26, 705/39, 705/44, 705/41, 361/737
• US Class Current: 235/492
• CPC Class Codes: G06K 19/0723 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• 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 7/10237 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

System for interchanging data between at least two contactless data storage media, particularly contactless chip cards, wherein at least one of the contactless data storage media controls the data interchange as a master, and the at least one other data storage medium is controlled as a slave.

Claims

1. A system for interchanging data between at least two contactless data storage media, wherein at least one of the contactless data storage media cards controls the data interchange as a master, and the at least one other data storage media cards is controlled as a slave, and power required for operating at least one other data storage media card is provided by the data storage media card which controls the data interchange as the master.

2. The system as claimed in claim 1, wherein the data storage media card are mobile data storage media card.

3. The system as claimed in claim 1, wherein the data storage media card are contactless chip cards or SIM cards.

4. The system as claimed in claim 1, wherein the data storage media card have dimensions of a chip card or SIM card.

5. The system as claimed in claim 1, wherein a power source required for supplying power to the master data storage media card is provided by an external power supply.

6. The system as claimed in claim 1, wherein a power source required for supplying power to the master data storage media card is situated on the master data storage medium.

7. The system as claimed in claim 6, wherein the power source for the master data storage media card comprises a battery, a storage battery or a solar cell.

8. The system as claimed in claim 6, wherein the power source can be changed over to an external power supply.

9. The system as claimed in claim 1, wherein the data storage media card operating as a master can be put into slave mode.

10. The system as claimed in claim 1, wherein the data storage media card operating as a master receives, forwards, stores, processes and outputs data, and also performs connection setup, anticollision or authentication.

11. A mobile data storage media card having a transponder for contactless data transmission of data stored on the data storage media card, wherein an application performing a master function can be programmed on the data storage media card, and power required for operating at least one other data storage media card is provided by the data storage medium which controls the data transmission as a master.

13. The mobile data storage medium as claimed in claim 11, wherein no read/write unit is required for contactless data transmission between the data storage media card and the at least one other data storage media card.

12. A system for interchanging data between at least two contactless data storage media card, wherein at least one of the contactless data storage media card controls the data interchange as a master and the at least one other data storage media card is controlled as a slave, without interfacing with a read/write unit separate from the storage media cards, and power required for operating at least one other data storage media card is provided by the data storage media card which controls the data interchange as a master.