READER AND WRITER FOR INTEGRATED CIRCUIT CARD

Title:

READER AND WRITER FOR INTEGRATED CIRCUIT CARD

Document Type and Number:

Japanese Patent JPS61264485

Kind Code:

A

Abstract:

PURPOSE: To obtain a reader/writer of an integrated circuit IC card which excels in general-purpose properties by using a discriminating means and a writing means which sets the driving conditions according to the result of discrimination of said discriminating means.

CONSTITUTION: When an IC card 13 is put into a reader/writer 12, a clock signal generator 15 operates after detecting the loaded card 13. Then a microprocessor 14 and the card 13 are driven. The processor 14 sends a command to a central processing unit 7 set on the card 13 for request of the access conditions. The unit 7 decodes this command and sends the access information on a data memory 5 itself written previously on a specific area of the memory 5 back to the processor 14. Then the processor 14 decodes the answer information given from the card 13 based on a program stored previously and delivers a control signal.

Inventors:

KITSUTA KENICHI
SHINAGAWA TORU
TAKAMORI HIROSHI

Application Number:

JP10493985A

Publication Date:

November 22, 1986

Filing Date:

May 18, 1985

Export Citation:

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Assignee:

HITACHI MAXELL

International Classes:

G06F3/08; B42D15/10; G06K7/00; G06K17/00; G07F7/10; G11C7/00; (IPC1-7): G06F3/08; G06K17/00; G11C7/00

Domestic Patent References:

JPS59107483A

1984-06-21

Attorney, Agent or Firm:

Kenjiro Take

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