RFID SYSTEM AND METHOD OF TRANSMITTING LARGE DATA OF PASSIVE RFID

• US 20090219142A1
• Filed: 10/28/2008
• Published: 09/03/2009
• 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: Kim, Seon-wook, Lee, Joon-goo, KU, Ja-nam
• Granted Patent: US 8,902,047 B2
• Time in Patent Office: Days
• US Class Current: 340/10.300
• 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 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.

2. The RFID reading apparatus of claim 1, wherein the data includes at least one of audio data, image data, and data files.

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 transmission packet comprises a command field indicating a BURST command that directs large data transfer and a bitstream field including bitstream data.

5. The RFID reading apparatus of claim 4, wherein the 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 transmission packet further comprises an identification field that includes identification information for identifying an RFID tag in order to transfer data to a particular RFID tag.

7. The RFID reading apparatus of claim 1, wherein the control unit generates a transmission packet including a BURST ACK command that requests a response to check whether the RFID tag has processed the transmitted transmission packet successfully after the transmission packet including the BURST command is received.

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

an RFID tag module which processes a transmission packet that comprises data and a command directing data transfer transmitted through an RF signal; and

a data transmitting unit which extracts data from the transmission packet and transfers the data to a data processing unit.

9. The passive RFID tag of claim 8, wherein the data includes at least one of audio data, image data, and data files.

10. The passive RFID tag of claim 8, wherein the transmission packet comprises a command field indicating a BURST command that directs large data transfer and a bitstream field including bitstream data.

11. The passive RFID tag of claim 10, wherein the transmission packet further comprises an important field that indicates 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 transmission packet for identifying an RFID tag and processes the transmission packet where the interpreted identification information is identical with the identification information of the passive RFID tag, and the RFID tag module requests an RFID reading apparatus, which has sent the transmission packet, to resend the 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 data transmitting unit transmits a result of processing the transmission packet in response to receiving a transmission packet comprising a BURST ACK command that requests a response to check whether the passive RFID tag has processed the transmitted transmission packet successfully after the transmission packet including the BURST command is received.

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

a data processing unit which processes data included in the transmission packet; and

an output unit which outputs 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 transmission packet comprising data and a command directing data transfer; and

converting the generated transmission packet into an RF signal and transferring the RF signal to the passive RFID tag.

16. The data transfer method of claim 15, wherein the transmission packet comprises a command field indicating a BURST command that directs large data transfer and a bitstream field including bitstream data.

17. The data transfer method of claim 16, further comprising:

generating and transmitting a transmission packet including a BURST ACK command that requests a response to check whether the passive RFID tag has processed the transmitted transmission packet successfully after transmitting the transmission packet comprising the BURST command.

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

processing a transmission packet which comprises data and a command directing data transmitted through an RF signal from an RFID reading apparatus; and

extracting data from the transmission packet and transferring the data to a data processing device.

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

interpreting identification information of the transmission packet for identifying an RFID tag and processing the 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, further comprising:

transmitting a result of processing the transmission packet in response to receiving transmission packet comprising a BURST ACK command that requests a response to check whether the passive RFID tag has processed the transmitted transmission packet successfully after receiving the transmission packet including the BURST command.