Electronic timepiece circuit

Details Electronic timepiece circuit Electronic timepiece circuit

1979-01-26

1981-05-12

Weldon, Ulysses

Horology: time measuring systems or devices

Chronological

With pulse transforming means

368 86, 368 87, 368217, 368218, 368219, G04C 1900

Patent

active

042675871

ABSTRACT:
An electronic timepiece circuit is provided with an oscillator for producing a reference signal and a frequency dividing circuit which frequency-divides the reference signal from the oscillator to produce a signal with given time intervals. Clock data stored in the memory is read out therefrom by a timing signal corresponding to the output signal from a given stage of the frequency dividing circuit and is loaded into a shift register where it is stored temporarily. The clock data stored in the memory is read out therefrom at given time intervals by a control signal obtained in accordance with the output signal from a given stage of the frequency dividing circuit, and the read out clock data, together with the clock data read out to the shift register, is subjected to a given operation, with the result that the clock data is updated. The updated clock signal is loaded into the memory by a control circuit.

REFERENCES:
patent: 3788058 (1974-01-01), Idei et al.
patent: 3798428 (1974-03-01), Tzawa
patent: 3986333 (1976-10-01), Kimura et al.
patent: 4078375 (1978-03-01), Kashio
patent: 4092819 (1978-06-01), Takase
patent: 4125993 (1978-11-01), Emile, Jr.
patent: 4155218 (1979-05-01), Wiget
"Digital Computer Basics", pg. 123, Dover Publications, Inc., New York, 1969.

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