Information processing terminal, data selection processing method, and program

a technology of information processing terminal and data selection, applied in the direction of coding, near-field systems using receivers, instruments, etc., can solve the problems of eddy current loss, inability to adequately stabilize and little hope of stabilizing the communication between the read/write unit and the information processing terminal. achieve the effect of reliable performance of more stable communication

Inactive Publication Date: 2010-10-14
MIYAGAWA YOICHI +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The solution enables stable and reliable non-contact data communication between the information processing terminal and a read / write unit, even in varying orientations and environments, by preventing eddy current loss and ensuring data integrity through separate antenna operation.

Problems solved by technology

However, in the known information processing terminal described above that is provided with a plurality of transmitting / receiving antennas, the coils that serve as the plurality of transmitting / receiving antennas are electrically connected, so the induced voltage in one transmitting / receiving antenna causes an electric current to flow in another transmitting / receiving antenna, giving rise to eddy current loss.
Therefore, in the known information processing terminal, communications between the read / write unit and the information processing terminal cannot be adequately stabilized, even if the plurality of transmitting / receiving antennas is installed.
Therefore, for the purpose of communications with the read / write unit, the known information processing terminal that has the functions of the read / write unit is essentially the same as the known information processing terminal that has one transmitting / receiving antenna, so there is little hope of stabilizing the communications between the read / write unit and the information processing terminal.

Method used

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  • Information processing terminal, data selection processing method, and program
  • Information processing terminal, data selection processing method, and program
  • Information processing terminal, data selection processing method, and program

Examples

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first embodiment

[0082]FIG. 1 is an explanatory figure that shows an example of a positional relationship between a reader / writer 100 and an information processing terminal 150 according to the embodiments of the present invention. FIG. 2 is a block diagram that shows a communication system that is configured from the reader / writer 100 and the information processing terminal 150 according to a first embodiment of the present invention.

[0083]According to the first embodiment of the present invention, the communications between the reader / writer 100 and the information processing terminal 150 is assumed to be performed under a wide variety of positional relationships. For example, a second data communication portion 164 may be positioned closer to the reader / writer 100 than is a first data communication portion 156, as shown in FIG. 1A. The first data communication portion 156 and the second data communication portion 164 may also be positioned approximately the same distance from the reader / writer 10...

second embodiment

[0156]A configuration that stably performs functions (smart card functions) that can receive data that is transmitted from a reader / writer that serves as an external unit and can respond according to the received data has been explained using the information processing terminal 150 according to the first embodiment of the present invention. Next, an information processing terminal will be explained that serves as an information processing terminal according to a second embodiment of the present invention and that is provided with reader / writer functions in addition to smart card functions. The reader / writer functions include a transmitting function and a receiving function. The transmitting function transmits to another unit, such as a smart card or the like, a command to read data, a command to write data, the written data, and the like, all of which are generated by the information processing terminal. The receiving function receives a transmitted command and a response to the dat...

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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.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]The present invention contains subject matter related to Japanese Patent Application JP 2006-201028 filed in the Japan Patent Office on Jul. 24, 2006, the entire contents of which being incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to an information processing terminal, a data selection processing method, and a program.[0004]2. Description of the Related Art[0005]In recent years, information processing terminals that are capable of communicating with a non-contact type read / write unit (reader / writer) have come into widespread use, including mobile telephones and the like that are provided with non-contact type integrated circuit (IC) cards (hereinafter called by their generally used name “smart cards”) or smart card functions. The read / write unit and the information processing terminal utilize a magnetic field (hereinafter called the “carrier wave”) of a speci...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): H04B5/00H03M13/09G06F11/10G06K19/00G06K19/07G06K19/077H04B1/59H04B5/48
CPCH04B5/0056H04B5/02H04B5/0081H04B5/77H04B5/26H04B5/48
InventorMIYAGAWA, YOICHISUZUKI, MAMORUENOMOTO, KAZUYOSHIYOSHIDA, YUKO
OwnerMIYAGAWA YOICHI