Programmer for contact readable electronic control system and pr

Details Programmer for contact readable electronic control system and pr Programmer for contact readable electronic control system and pr

1993-05-20

1996-07-16

Bowler, Alyssa H.

Communications: electrical

Continuously variable indicating

With meter reading

2353825, 3408253, 361737, G06F 704, G06K 701, H05K 702

Patent

active

055371035

ABSTRACT:
Programmers for an entry control system, which operates to automatically control access to an area upon contact of an electronic key with a data port, employ data carriers housing ROM chips. The chips have a unique data code which corresponds to an elemental key or a code. In one form of the programmer, a membrane keypad addresses the ROM chips for inputting commands to program a controller. In other embodiments, the programming chips are mounted to a flexible board and are positionable to directly contact a receptacle port for the controller.

REFERENCES:
patent: 2508953 (1950-05-01), Knutsen
patent: 3924242 (1975-12-01), Naud
patent: 4558175 (1985-12-01), Genest et al.
patent: 4677284 (1987-06-01), Genest
patent: 4825058 (1989-04-01), Poland
patent: 4999622 (1991-03-01), Amano et al.
patent: 5021776 (1991-06-01), Anderson et al.
patent: 5045675 (1991-09-01), Curry
patent: 5157244 (1992-10-01), Mroczkowski et al.
patent: 5285200 (1994-02-01), Kuriyama

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