Electronic timer

Details Electronic timer Electronic timer

1981-01-08

1983-07-26

Miska, Vit W.

Horology: time measuring systems or devices

Electrical time base

Solid state oscillating circuit type

G06F 104

Patent

active

043951368

ABSTRACT:
An electronic timer wherein a counting circuit for counting outputs of a CR oscillating circuit comprises a plurality of partial counting circuits which are cascade-connected with one another, the respective partial counting circuits are automatically reset by an automatic resetting circuit when a source current voltage is applied or reset by an external resetting circuit at a desired time, the outputs of the CR oscillating circuit are counted by the respective partial counting circuits after the resetting, and a following output circuit is driven when the count reaches an externally set value of a setting circuit. The partial counting circuits are divided into groups by an external driving test circuit to quickly test the operation of the counting circuit.

REFERENCES:
patent: 3745380 (1973-07-01), Kitajima et al.
patent: 3889459 (1975-06-01), Lu
patent: 3979681 (1976-09-01), Arnold
patent: 4001553 (1977-01-01), Troutman et al.
patent: 4094136 (1978-06-01), Aizawa

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