Information processing terminal, data selection processing method, and program

• US 20080161052A1
• Filed: 07/20/2007
• Published: 07/03/2008
• Est. Priority Date: 07/24/2006
• Status: Active Grant

• Current Assignee: FeliCa Networks, Inc
• Original Assignee: FeliCa Networks, Inc
• Inventors: Suzuki, Mamoru, Yoshida, Yuko, Enomoto, Kazuyoshi, Miyagawa, Yoichi, Yoneda, Atsuo
• Granted Patent: US 7,801,109 B2
• Time in Patent Office: Days
• US Class Current: 455/558
• CPC Class Codes: H04B 5/0056 for use in interrogation, identification or read/write systems record carriers G06K7/00, G06K19/00; for railways B61L3/12
• CPC Class Codes: H04B 5/0081 with antenna coils loop aerials H01Q7/00
• CPC Class Codes: H04B 5/02 using transceiver
• CPC Class Codes: H04B 5/26 using coils
• CPC Class Codes: H04B 5/48 Transceivers
• CPC Class Codes: H04B 5/77 for interrogation

Abstract

There is provided an information processing terminal that has a plurality of data communication portions that receive data from a read/write unit by a non-contact method. The information processing terminal includes a data processing portion that selects and processes one of the data received by a first data communication portion that is one of the plurality of data communication portions and the data received by a second data communication portion that is one of the plurality of data communication portions. The information processing terminal also includes a load modulation portion that performs a load modulation with respect to a response to the read/write unit according to the data processing in the data processing portion.

Claims

1. An information processing terminal that has a plurality of data communication portions that receive data from a read/write unit by a non-contact method, comprising:

a data processing portion that selects and processes one of the data received by a first data communication portion that is one of the plurality of data communication portions and the data received by a second data communication portion that is one of the plurality of data communication portions; and

a load modulation portion that performs a load modulation with respect to a response to the read/write unit according to the data processing in the data processing portion.

2. The information processing terminal according to claim 1, wherein the data processing portion includes

a received data selection section that selects the data to be processed from the data received by the first data communication portion and the data received by the second data communication portion, and

a data processing section that processes the data that is selected by the received data selection section.

3. The information processing terminal according to claim 2, wherein

the load modulation portion includes at least a first load modulation section that performs the load modulation for the first data communication portion and a second load modulation section that performs the load modulation for the second data communication portion,

the data processing portion further includes a load modulation selection section that selects the first load modulation section when the data received by the first data communication portion is selected and that selects the second load modulation section when the data received by the second data communication portion is selected, and

the load modulation portion performs the load modulation using the one of the first load modulation section and the second load modulation section that was selected.

4. The information processing terminal according to claim 2, wherein

the load modulation portion includes at least a first load modulation section that performs the load modulation for the first data communication portion and a second load modulation section that performs the load modulation for the second data communication portion,

the data processing portion further includes a load modulation selection section that selects both the first load modulation section and the second load modulation section, regardless of the data that was selected by the received data selection section, and

the load modulation portion performs the load modulation using both the first load modulation section and the second load modulation section that were selected.

5. The information processing terminal according to claim 2, wherein

the received data includes at least a synchronization code and a cyclic redundancy check code, and

the received data selection section selects, from the data received by the first data communication portion and the data received by the second data communication portion, the data in which the synchronization code is detected first.

6. The information processing terminal according to claim 2, further comprising:

a cyclic redundancy check section,

wherein the received data includes at least a synchronization code and a cyclic redundancy check code,

the cyclic redundancy check section uses the cyclic redundancy check code to perform a cyclic redundancy check for both the data received by the first data communication portion and the data received by the second data communication portion, and

the received data selection section selects, from the data received by the first data communication portion and the data received by the second data communication portion, the data for which the cyclic redundancy check was completed first without any errors.

7. The information processing terminal according to claim 1, further comprising:

a transmission signal generation portion that generates a transmission signal,

wherein the first data communication portion and the second data communication portion transmit the transmission signal and receive response data in response to the transmission signal.

8. The information processing terminal according to claim 7, wherein

the transmission signal generation portion selectively performs at least one of selective conveying the transmission signal to one of the first data communication portion and the second data communication portion and conveying the transmission signal to both the first data communication portion and the second data communication portion.

9. The information processing terminal according to claim 1, wherein the information processing terminal is a mobile communication device.

10. The information processing terminal according to claim 9, wherein the first data communication portion is provided on one face and the second data communication portion is provided on another face.

11. A data selection processing method that selectively processes data that is received by a plurality of data communication portions that are provided in an information processing terminal, comprising the steps of:

detecting a synchronization code in a first data that is received by a first data communication portion that is one of the plurality of data communication portions;

detecting a synchronization code in a second data that is received by a second data communication portion that is one of the plurality of data communication portions;

selecting from the first data and the second data the data in which the synchronization code was detected first;

performing a cyclic redundancy check for the selected data; and

processing the selected data if the result of the cyclic redundancy check has no errors.

12. A data selection processing method that selectively processes data that is received by a plurality of data communication portions that are provided in an information processing terminal, comprising the steps of:

detecting a synchronization code in a first data that is received by a first data communication portion that is one of the plurality of data communication portions;

performing a cyclic redundancy check for the first data;

detecting a synchronization code in a second data that is received by a first data communication portion that is one of the plurality of data communication portions;

performing a cyclic redundancy check for the second data;

selecting from the first data and the second data the data for which the cyclic redundancy check was completed first without any errors; and

processing the selected data.

13. A computer program that is used in an information processing terminal that has a plurality of data communication portions that receive data from a read/write unit by a non-contact method, the computer program comprising instructions that direct a computer to function as:

a first data communication section that controls receiving of data by a first data communication portion that is one of the plurality of data communication portions;

a second data communication section that controls receiving of data by a second data communication portion that is one of the plurality of data communication portions;

a data processing section that selects and processes one of the data received by the first data communication portion and the data received by the second data communication portion; and

a load modulation section that performs a load modulation with respect to a response to the read/write unit according to the data processing in the data processing section.