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Integrated circuit card for reducing power consumption

A technology of integrated circuit card and power, which is applied in the direction of recording carriers, instruments, computer parts, etc. used by machines

Inactive Publication Date: 2006-04-26
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a frame duration in which power supply from the card reader to the IC card is temporarily interrupted

Method used

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  • Integrated circuit card for reducing power consumption
  • Integrated circuit card for reducing power consumption
  • Integrated circuit card for reducing power consumption

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Experimental program
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Embodiment Construction

[0030] Preferred embodiments of the present invention will be described by means of the accompanying drawings.

[0031] In various embodiments of the present invention, a smart card or plastic card having the size of a credit card that has the function of making the smart card equipped with a microprocessor, a card operating system, a security module, a memory, etc. will be described as an example. An integrated circuit chip capable of handling a particular transaction, but the invention is applicable to different types of integrated circuit cards and electronic devices that communicate with external devices.

[0032] FIG. 3 is a view showing a circuit structure of a smart card according to a preferred embodiment of the present invention. The smart card 100 is a proximity type non-contact IC card, which conforms to the ISO / IEC 14443 standard. The smart card 100 includes an RF interface 110 connected to the bus 101 , a CPU 120 , a ROM 130 , a RAM 140 , an encoder 150 , a rando...

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PUM

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Abstract

An integrated circuit card including an interface block for performing an interface function with an external device; and a power controller for controlling power of a safety integrated circuit for detecting whether an operating environment is in an abnormal state, the power controller periodically and Power is selectively applied to the security integrated circuit. Therefore, power consumption of the IC card is reduced; and stable operation of the IC card that communicates contactlessly with an external device can be ensured with an extended communication distance.

Description

[0001] This application claims priority from Korean Patent Application No. 2004-84058 filed on October 20, 2004, the contents of which are incorporated herein by reference. technical field [0002] The present invention relates to integrated circuit cards, and more particularly, to integrated circuit cards for communicating with external devices. Background technique [0003] Since the emergence of credit cards in the 1920s, various cards including cash cards, credit cards, ID cards, security cards, and department store credit cards have been widely used. Recently, an integrated circuit IC card, which may also be called a microcomputer, has drawn attention because of its convenience, stability or multi-function. [0004] An IC card is a credit card-sized plastic card with a thin semiconductor device attached to it. IC cards typically provide a higher level of security than traditional magnetic stripe cards and are less prone to loss of stored data. Generally, an IC card is...

Claims

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Application Information

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IPC IPC(8): G06K19/077
CPCG06K19/0707G06K19/0712G06K19/0716G06K19/0723G06K19/073G06K19/07
Inventor 成赫晙金基烈
Owner SAMSUNG ELECTRONICS CO LTD