Power supply system of a device designed to cooperate with a rem

Details Power supply system of a device designed to cooperate with a rem Power supply system of a device designed to cooperate with a rem

1983-04-20

1985-08-27

Pitts, Harold I.

Registers

Systems controlled by data bearing records

Credit or identification card systems

371 66, G06K 500

Patent

active

045380589

ABSTRACT:
The invention relates to a power supply system for a device designed to cooperate with a portable electronic medium, e.g., a credit or identification card having integrated electronic circuits therein. This system comprises a main power supply circuit (5a) that applies at least one voltage (V) to a processing unit (3) by means of a main supply source (6a) and an auxiliary backup supply circuit (5b) by means of an auxiliary supply source (6b). A detector circuit (7) detects any anomaly of the main source (6a) and automatically connects the auxiliary source (6b) in order to apply the voltage (V) to the unit (3).
The invention is more particularly applicable to the supply of a transaction terminal or unit which cooperates with portable electronic mediums, e.g., credit or identification cards.

REFERENCES:
patent: 4211919 (1980-07-01), Ugon
patent: 4256955 (1981-03-01), Giraud et al.
patent: 4277837 (1981-07-01), Stuckert
patent: 4451742 (1984-05-01), Aswell
IBM Tech. Discl. Bull., vol. 23, No. 3, Aug. 1980, Battery Backup Power Supply, T. Winlow.
Design News, 2119, E.D.N. Electrical Design News (1981) Sep., No. 18, Boston, U.S.A., Dan Garcia.
IBM Technical Disclosure Bulletin, vol. 21, No. 4, Sep. 1978, UPS Reserve Time Predictor, M. E. Houdek.

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