Low power consumption non-contact integrated circuit card

Details Low power consumption non-contact integrated circuit card Low power consumption non-contact integrated circuit card

1990-08-09

1993-01-26

Weinhardt, Robert

Registers

Records

Conductive

235436, G06K 1907

Patent

active

051824426

ABSTRACT:
A noncontact IC card comprises a data transmit-receive circuit for transmitting and receiving data without contact, a detection circuit for detecting a trigger signal in a signal received by the data transmit-receive circuit, a data processing circuit connected to the data transmit-receive circuit for processing the data, a clock generating circuit for supplying a clock signal to the data processing circuit, an actuating circuit for actuating the clock generating circuit in response to the detection of the trigger signal by the detection circuit, and a battery for supplying electric power to each of the above circuits.

REFERENCES:
patent: 4766294 (1988-08-01), Nara et al.
patent: 4803351 (1989-02-01), Shigenaga
patent: 4816656 (1989-03-01), Nakano et al.
patent: 4827111 (1989-05-01), Kondo
patent: 4868376 (1989-09-01), Lessin et al.
patent: 4924075 (1990-05-01), Tanaka

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