RFID reader and RFID tag using UHF band and action methods thereof

• US 20060197651A1
• Filed: 02/23/2006
• Published: 09/07/2006
• Est. Priority Date: 03/02/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Min, Young-hoon, Song, Il-jong, Lee, Dong-hyun, Kim, Sung-oh, Cho, Kyeong-soon, Ku, Ja-nam
• Granted Patent: US 7,978,077 B2
• Time in Patent Office: Days
• US Class Current: 340/5.61
• CPC Class Codes: H04B 5/48 Transceivers
• CPC Class Codes: H04B 5/77 for interrogation

Abstract

A radio frequency identification reader and a radio frequency identification tag that use an ultrahigh frequency band, and action methods of the radio frequency identification reader and the radio frequency identification tag. The radio frequency identification reader includes: a data generator generating data to be transmitted to a radio frequency identification tag; if a command to control the radio frequency identification tag has to be authenticated, a reader controller controlling the data generator to generate the data including an authentication code; and a reader transmitter transmitting the data to the radio frequency identification tag. As a result, securing of communications of a specific command between the radio frequency identification reader and the radio frequency identification tag can be reinforced.

Claims

1. A radio frequency identification reader configured to communicate in an ultrahigh frequency band, the radio frequency identification reader comprising:

a generator that generates data to be transmitted to a radio frequency identification tag;

a reader controller that controls the generator to generate the data if a command to control the radio frequency identification tag needs to be authenticated, the data comprising an authentication code; and

a reader transmitter that transmits the generated data to the radio frequency identification tag.

2. The radio frequency identification reader of claim 1, wherein the authentication code comprises a Keyed-Hash Message Authentication Code.

3. The radio frequency identification reader of claim 1, wherein the command comprises one of “

Kill” and

“

ProgramID.”

4. The radio frequency identification reader of claim 1, wherein the command comprises one of “

VerifyID” and

“

EraseID”

.

5. The radio frequency identification reader of claim 1, further comprising a reader receiver that receives a response from the radio frequency identification tag.

6. A method of communicating with a radio frequency identification reader using an ultrahigh frequency band, the method comprising:

determining whether a command to control a radio frequency identification tag needs to be authenticated;

if it is determined that the command has to be authenticated, generating data comprising an authentication code; and

transmitting the data to the radio frequency identification tag.

7. The method of claim 6, wherein the authentication code is a Keyed-Hash Message Authentication Code.

8. The method of claim 6, wherein the command comprises one of “

Kill” and

“

ProgramID.”

9. The method of claim 6, wherein the command comprises one of “

VerifyID” and

“

EraseID”

.

10. A radio frequency identification tag configured to communicate in an ultrahigh frequency band, the radio frequency identification tag comprising:

a tag receiver that receives data from a radio frequency identification reader;

an authenticator that checks an authentication code of the data to determine whether an authentication has been performed; and

a tag controller that controls the authenticator to check the authentication code if the data includes the authentication code, and to perform an action corresponding to the command if the authentication code is correct.

11. The radio frequency identification tag of claim 10, wherein the authentication code comprises a Keyed-Hash Message Authentication Code.

12. The radio frequency identification tag of claim 10, wherein the tag controller comprises:

a data parser that parses the received data.

13. The radio frequency identification tag of claim 10, wherein the tag controller further comprises:

a response generator that performs the action and then generates response data transmittable to the radio frequency identification reader.

14. The radio frequency identification tag of claim 13, further comprising:

a tag transmitter that transmits the response data to the radio frequency identification reader.

15. A method of communicating with a radio frequency identification tag using an ultrahigh frequency band, method comprising:

parsing data transmitted from a radio frequency identification reader;

if the data comprises an authentication code, checking using the authentication code to determine an authentication has been performed; and

if the authentication has been correctly performed, performing an action corresponding to a command of the data.

16. The method of claim 15, wherein the authentication code comprises a Keyed-Hash Message Authentication Code.

17. The method of claim 15, further comprising:

after the performing, generating response data to be transmitted to the radio frequency identification reader; and

transmitting the response data to the radio frequency identification reader.