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Contactless IC card

A non-contact, electromotive force technology, which is used in the activation of coded identification cards or credit cards, time registers, instruments, etc., to achieve the effect of simple operation and fast switching

Active Publication Date: 2006-04-19
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] It is also a challenge to switch between more than two kinds of applications using a single contactless IC card in consideration of the fact that the number of applications for use with the contactless IC card increases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0059] First, a non-contact IC card according to a first embodiment of the present invention will be explained.

[0060] This first embodiment describes the case where each of the two antenna coils is located below each surface of the non-contact IC card.

[0061] With the above-mentioned ordinary contactless IC card ( figure 1 ), the non-contact IC card according to the first embodiment of the present invention has the same external structure as the common non-contact IC card, but has an internal structure different from the common non-contact IC card.

[0062] image 3 is a diagram showing a hardware configuration of the non-contact IC card according to the first embodiment.

[0063] According to the non-contact IC card 11 of the present embodiment, as a hardware structure, it is made up of the following components: a first antenna coil 102 and a second antenna coil 103 for generating an electromotive force by receiving electromagnetic waves from a reader / writer; the first...

no. 2 example

[0078] Next, a non-contact IC card according to a second embodiment of the present invention will be described.

[0079] In the first embodiment, an example of a non-contact IC card has two antenna coils: one below each surface of the card.

[0080] However, the present invention is not limited thereto, and it is also conceivable to place the antenna coils side by side under one surface of the non-contact IC card. The second embodiment describes an example of a non-contact IC card in which antenna coils are placed side by side under one surface of the card.

[0081] It should be noted that the hardware structure of the contactless IC card according to the second embodiment is the same as image 3 The ones shown are the same, and the functional structure is the same as that shown in FIG. 4 . A description thereof is therefore omitted.

[0082] The operation of the non-contact IC card according to the second embodiment is explained in detail below with reference to FIGS. 8 an...

no. 3 example

[0095] A non-contact IC card according to a third embodiment of the present invention will be described below.

[0096] This third embodiment describes the case where the first and second embodiments are combined, that is, the case where the non-contact IC card has four antenna coils: two antenna coils located side by side under the front surface, and one located in the same manner. Two other antenna coils below the back surface.

[0097] It should be noted that the hardware structure of the contactless IC card according to the third embodiment of the present invention is the same as image 3 The structure shown is the same except that the former additionally includes the following components: a third antenna coil; a third electromotive force measuring unit for measuring an electromotive force generated by the third antenna coil; a fourth antenna coil; and a fourth electromotive force measuring unit for for measuring the electromotive force generated by the fourth antenna coi...

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Abstract

A contactless integrated circuit (IC) card (11) is comprised of the following: a first antenna coil (102) and a second antenna coil (103) for generating an electromotive force by receiving electromagnetic waves from a reader / writer; a first electromotive force measuring unit (311) and a second electromotive force measuring unit (312) for respectively measuring the electromotive force generated by each of the antenna coils; an electromotive force comparing unit (313) for comparing the characteristics of the electromotive forces which are respectively generated by the respective antenna coils and then measured; and an application selecting / executing unit (215) for selecting one application from a program storing unit (216) based on the comparison made by the electromotive force comparing unit (313) and executing the selected application.

Description

technical field [0001] The present invention relates to a non-contact integrated circuit (IC) card, in particular to a non-contact IC card which can execute a plurality of application programs and facilitate the user to select an application program. Background technique [0002] Magnetic cards, including credit cards, have been routinely used regardless of their purpose, such as commercial purposes. Recently, however, magnetic cards have given way to IC cards. Possible reasons include that the IC card has a low risk of tampering and is superior in security and large storage capacity, and that a non-contact interface can be applied to the IC card through wireless communication with a host terminal. IC cards with these advantages are extremely popular in the transportation field. In particular, these effects have been confirmed in the processing of ticket checking that requires a large capacity and high speed, and its future application in various fields will be further con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/077G06K17/00G07F7/10G07C9/00G06K19/07
CPCG06Q20/3574G06Q20/327G06K19/0723G06K19/07749G06K19/0712G06Q20/341G06K19/0707G07F7/1008G06K19/077G06K19/07
Inventor 松下裕香中部太志植田荣治
Owner PANASONIC CORP
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