Wireless communication apparatus and response data processing method therefor

• US 20050111420A1
• Filed: 11/11/2004
• Published: 05/26/2005
• Est. Priority Date: 11/19/2003
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Fujii, Kunihide
• Granted Patent: US 7,711,323 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• 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 7/10039 interrogator driven, i.e. synchronous
• CPC Class Codes: G06Q 20/341 Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
• CPC Class Codes: G07F 7/084 Additional components relating to data transfer and storing, e.g. error detection, self-diagnosis
• CPC Class Codes: G07F 7/1008 Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system
• CPC Class Codes: H04B 5/48 Transceivers

Abstract

A wireless communication apparatus that communicates data with an external wireless apparatus in a wireless communication range includes a controller and a wireless communication interface device is provided. The wireless communication interface device includes a transmitting unit that transmits response request data to the external wireless apparatus, a counter that counts time for determining whether or not a time limit for waiting for the response data has elapsed, a storage unit that stores the response data, a receiving unit that receives first response data from the external wireless apparatus and that instantaneously receives second response data without an instruction from the controller when the time limit has not elapsed, a frame length checking unit that checks a frame length of the received response data, and an error detector that performs error detection on the response data.

Claims

1. A wireless communication apparatus that communicates data with an external wireless apparatus in a wireless communication range, the wireless communication apparatus comprising:

a controller configured to control the wireless communication apparatus; and

a wireless communication interface device configured to receive response data independently from control of the controller in response to a response request data transmitted to the external wireless apparatus, the wireless communication interface device comprising;

a transmitting unit configured to transmit the response request data;

a counter unit configured to count time for determining whether or not a time limit for waiting for the response data has elapsed;

a storage unit configured to store the response data;

a receiving unit configured to receive first response data from the external wireless apparatus and instantaneously receive second response data without an instruction from the controller when the time limit has not elapsed;

a frame length checking unit configured to check a frame length of the received response data; and

an error detecting unit configured to perform error detection on the response data, an error detection result of the error detecting unit being stored in the storage unit.

2. The apparatus according to claim 1, wherein the frame length checking unit checks a frame value set in the response data against a preset frame value, and wherein the frame value indicates the frame length of the response data.

3. The apparatus according to claim 1, wherein the controller and the wireless communication interface device are connected by a serial interface.

4. The apparatus according to claim 1, wherein the error detecting unit removes an error detection code included in the response data, and wherein the response data from which the error detection code is removed is stored in the storage unit.

5. The apparatus according to claim 1, wherein the wireless communication interface device further comprises a state machine unit that controls the processing performed independently from the controller, and wherein the receiving unit receives the second response data according to an instruction from the state machine unit.

6. A wireless communication apparatus that communicates data with an external wireless apparatus in a wireless communication range, the wireless communication apparatus comprising:

a controller configured to control the wireless communication apparatus; and

a wireless communication interface device configured to transmit response data independently from control of the controller in response to a response request data received from the external wireless apparatus, the wireless communication interface device comprising;

a receiving unit configured to receive the response request data;

a storage unit configured to store the response data;

an identification information authenticating unit configured to authenticate identification information that is included in the received response request data;

an identification information setting unit configured to set identification information of the wireless communication apparatus in the response data when the response request data includes request information that requests identification information;

a time frame determining unit configured to determine a time frame in which the response data is to be transmitted; and

a transmitting unit configured to transmit the response data according to the time frame without an instruction from the controller.

7. The apparatus according to claim 6, wherein the identification information authenticating unit compares the identification information included in the response request data with identification information of the wireless communication apparatus that receives the response request data.

8. The apparatus according to claim 6, wherein the controller and the wireless communication interface device are connected by a serial interface.

9. The apparatus according to claim 6, wherein the wireless communication interface device further comprises a state machine unit that controls the processing performed independently from the controller.

10. A response data processing method for a wireless communication apparatus including a controller, for communicating data with an external wireless apparatus in a wireless communication range by requesting response data and waiting for the response data from the external wireless apparatus, the response data processing method comprising:

counting a time limit for waiting for the response data from the external wireless apparatus without control of the controller;

checking a frame length of the response data without control of the controller;

performing error detection on the response data without control of the controller; and

storing the response data and an error detection result without control of the controller.

11. The method according to claim 10, wherein, a frame value set in the response data is checked against a preset frame value, and wherein the frame value indicates the frame length of the response data.

12. The method according to claim 10, wherein the stored response data comprises response data from which an error detection code used in the error detection is removed.

13. A response data processing method for a wireless communication apparatus including a controller, for communicating data with an external wireless apparatus in a wireless communication range by receiving response request data from the external wireless apparatus and transmitting response data in response to the response request data, the response data processing method comprising:

authenticating identification information that is included in the received response request data without control from the controller;

setting identification information of the wireless communication apparatus in the response data without control of the controller when the response request data includes request information that requests identification information;

determining a time frame in which the response data is to be transmitted without control from the controller; and

transmitting the response data according to the time frame.

14. The method according to claim 13, wherein the identification information included in the response request data is compared with identification information of the wireless communication apparatus that receives the response request data.

15. A wireless communication apparatus that communicates data with an external wireless apparatus in a wireless communication range, the wireless communication apparatus comprising:

means for controlling the wireless communication apparatus; and

a wireless communication interface device configured to receive response data independently from control of the controller in response to a response request data transmitted to the external wireless apparatus, the wireless communication interface device comprising;

means for transmitting the response request data;

means for counting time for determining whether or not a time limit for waiting for the response data has elapsed;

means for storing the response data;

means for receiving first response data from the external wireless apparatus and instantaneously receiving second response data without an instruction from the controller when the time limit has not elapsed;

means for checking a frame length of the received response data; and

means for performing error detection on the response data, wherein an error detection result of the error detecting means is stored in the storage unit.

16. A wireless communication apparatus that communicates data with an external wireless apparatus in a wireless communication range, the wireless communication apparatus comprising:

means for controlling the wireless communication apparatus; and

a wireless communication interface device configured to transmit response data independently from control of the controller in response to a response request data received from the external wireless apparatus, the wireless communication interface device comprising;

means for receiving the response request data;

means for storing the response data;

means for authenticating identification information that is included in the received response request data;

means for setting identification information of the wireless communication apparatus in the response data when the response request data includes request information that requests identification information;

means for determining a time frame in which the response data is to be transmitted; and

means for transmitting the response data according to the time frame without an instruction from the controller.