Electronic timepiece

Details Electronic timepiece Electronic timepiece

1984-01-31

1984-08-28

Miska, Vit W.

Horology: time measuring systems or devices

Electrical time base

Solid state oscillating circuit type

G04F 500

Patent

active

044681330

ABSTRACT:
An electronic timepiece has a reference signal generator for generating a 1/10 seconds reference signal which is fed to a static counter which counts the 1/10 seconds reference signal and produces a reference count signal. A read only memory stores a system program which executes and controls a time count. An arithmetic and logic unit executes the time count and a random access memory stores the time counting data. A bidirectional data bus line is connected between the random access memory and the static counter, and a decoder is connected to the bidirectional data bus line for decoding the contents of both the random access memory and the static counter and providing corresponding decoded time data signals. A display device responds to the decoded time data signals and indicates the contents of the random access memory and the static counter. A control circuit is connected to the read only memory and coacts therewith to initiate the actions of the randon access memory and the arithmetic and logic unit in response to the reference count signal from the static counter.

REFERENCES:
patent: 3988886 (1976-01-01), Kashio
patent: 4003409 (1977-12-01), Bayliss
patent: 4092819 (1978-06-01), Takase
patent: 4125993 (1978-01-01), Emile
patent: 4158285 (1979-06-01), Heinsen et al.

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