RFID system and method of transmitting large data of passive RFID

• US 8,902,047 B2
• Filed: 10/28/2008
• Issued: 12/02/2014
• Est. Priority Date: 02/29/2008
• Status: Active Grant

• Current Assignee: Korea University Industrial & Academic Collaboration Foundation, Samsung Electronics Co. Ltd.
• Original Assignee: Korea University Industrial & Academic Collaboration Foundation, Samsung Electronics Co. Ltd.
• Inventors: Ku, Ja-nam, Kim, Seon-wook, Lee, Joon-goo
• Primary Examiner(s): McNally, Kerri
• Assistant Examiner(s): MA, KAM WAN
• Application Number:
  US12/259,312
• Publication Number:
  US 20090219142A1
• Time in Patent Office: 2,226 Days
• Field of Search: 340 101- 1051, 370/465, 370470-472, 370474-476
• US Class Current: 340/10.3
• 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: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

Provided are a radio frequency identification (RFID) system including an RFID reading apparatus and a passive RFID tag and a method of transferring and/or processing data using the same. An RFID reading apparatus includes a data input unit which receives data to be transferred to a passive RFID tag, a control unit which generates a transmission packet containing the data and a command directing data transfer, and a communication unit which converts the generated transmission packet into an RF signal and transfers the converted RF signal to the passive RFID tag.

Claims

1. A radio frequency identification (RFID) reading apparatus, comprising:

a data input unit configured to receive data to be transferred to a passive RFID tag;

a control unit configured to generate a first transmission packet including the received data and a command directing data transfer to make the passive RFID tag transfer the received data to an external data processing and/or storing apparatus, and a second transmission packet comprising a command requesting the passive RFID tag to return a response as to whether the passive RFID tag has transferred the data to the external data processing and/or storing apparatus successfully; and

a communication unit configured to convert the generated first and second transmission packets into an RF signal, and transfer the converted RF signal to the passive RFID tag.

2. The RFID reading apparatus of claim 1, wherein the data includes audio data, image data, data files, or any combination thereof.

3. The RFID reading apparatus of claim 1, wherein the data input unit receives the data from an external multimedia reproducing device or a storage medium.

4. The RFID reading apparatus of claim 1, wherein the command directing data transfer comprises a command field indicating a BURST command that directs data transfer, and

wherein the first transmission packet further comprises a bitstream field including bitstream data.

5. The RFID reading apparatus of claim 4, wherein the first transmission packet further comprises an important field that indicates an integrity test result of the bitstream data.

6. The RFID reading apparatus of claim 4, wherein the first transmission packet further comprises an identification field configured to comprise identification information to identify an RFID tag in order to transfer data to a particular RFID tag.

7. The RFID reading apparatus of claim 4, wherein the second transmission packet comprises a BURST ACK command to check whether the passive RFID tag has processed the first transmission packet successfully after the first transmission packet including the BURST command is received, the BURST ACK command requesting the response as to whether the passive RFID tag has transferred the data to the external data processing and/or storing apparatus successfully.

8. A passive radio frequency identification (RFID) tag comprising:

an RFID tag module configured to process a first transmission packet that comprises data and a command directing data transfer transmitted through an RF signal to force a transfer of the data to an external data processing and/or storing apparatus, and a second transmission packet comprising a command requesting a response as to whether the data has been transferred to the external data processing and/or storing apparatus successfully; and

a data transmitting unit configured to extract data from the first transmission packet and transfer the extracted data to the external data processing and/or storing apparatus.

9. The passive RFID tag of claim 8, wherein the data includes audio data, image data, data files, or any combination thereof.

10. The passive RFID tag of claim 8, wherein the command directing data transfer comprises a command field indicating a BURST command that directs data transfer, and

wherein the first transmission packet further comprises a bitstream field including bitstream data.

11. The passive RFID tag of claim 10, wherein the first transmission packet further comprises an important field configured to indicate an integrity test result of the bitstream data.

12. The passive RFID tag of claim 11, wherein the RFID tag module interprets identification information of the first transmission packet to identify an RFID tag and processes the first transmission packet where the interpreted identification information is identical with the identification information of the passive RFID tag, and

wherein the RFID tag module requests an RFID reading apparatus, which has sent the first transmission packet, to resend the first transmission packet where information of the important field indicates that the integrity of the bitstream data is not maintained.

13. The passive RFID tag of claim 10, wherein the second transmission packet comprises a BURST ACK command to check whether the first transmission packet has been processed by the RFID tag module successfully after the first transmission packet including the BURST command has been received, and

wherein the data transmitting unit transmits the response as to whether the data has been transferred to the external data processing and/or storing apparatus successfully in response to the BURST ACK command.

14. The passive RFID tag of claim 8, further comprising:

a data processing unit configured to process the data extracted from the first and second transmission packets; and

an output unit configured to output the processed data.

15. A data transfer method of a radio frequency identification (RFID) reading apparatus, the data transfer method comprising:

receiving data to be transferred to a passive RFID tag;

generating a first transmission packet comprising the received data and a command directing data transfer to make the passive RFID tag transfer the received data to an external data processing and/or storing apparatus, and a second transmission packet comprising a command requesting the passive RFID tag to return a response as to whether the passive RFID tag has transferred the data to the external data processing and/or storing apparatus successfully;

converting the generated first and second transmission packets into an RF signal; and

transferring the RF signal to the passive RFID tag.

16. The data transfer method of claim 15, wherein the command directing data transfer comprises a command field indicating a BURST command that directs data transfer, and

wherein the first transmission packet further comprises a bitstream field including bitstream data.

17. The data transfer method of claim 16, wherein the second transmission packet comprises a BURST ACK command to check whether the passive RFID tag has processed the first transmission packet successfully after the first transmission packet including the BURST command is received, the BURST ACK command requesting the response as to whether the passive RFID tag has transferred the data to the external data processing and/or storing apparatus successfully.

18. A data processing method of a passive radio frequency identification (RFID) tag, the method comprising:

processing a first transmission packet that comprises data and a command directing data transfer transmitted through an RF signal from an RFID reading apparatus to force a transfer of the data to an external data processing and/or storing apparatus, and a second transmission packet comprising a command requesting a response as to whether the data has been transferred to the external data processing and/or storing apparatus successfully; and

extracting data from the first transmission packet and transferring the extracted data to the external data processing and/or storing apparatus.

19. The data processing method of claim 18, further comprising:

interpreting identification information of the first transmission packet to identify an RFID tag; and

processing the first transmission packet where the interpreted identification information is identical with the identification information of the passive RFID tag.

20. The data processing method of claim 18, wherein the second transmission packet comprises a BURST ACK command to check whether the first transmission packet has been processed by the RFID tag module successfully after the first transmission packet including a BURST command has been received, and

wherein the extracting of the data comprises transmitting the response as to whether the data has been transferred to the external data processing and/or storing apparatus successfully in response to the BURST ACK command.