Electronic timepiece

Details Electronic timepiece Electronic timepiece

1975-06-13

1977-05-24

Jackmon, E. S.

58 50R, 58 855, G04C 300, G04B 1930, G04B 2700

Patent

active

040246760

ABSTRACT:
An electronic timepiece wherein a quartz crystal oscillator produces a timekeeping standard signal which is divided by a transformer means formed of silicon gate complementary MOS transistor elements. The output of the transfer means is applied to a drive circuit which in turn is coupled to a digital display formed of liquid crystal elements. Time correction is performed by two switches, one switch selecting the digit of the display to be corrected, the other correcting the number displayed at the selected digit.

REFERENCES:
patent: 3505804 (1970-04-01), Hofstein
patent: 3672155 (1972-06-01), Bergey et al.
patent: 3810356 (1974-05-01), Fujita
patent: 3852952 (1974-12-01), Uittoz et al.
Kaiser et al., "Recent Developments in CMOS/SOS", RCA Engineer, Aug. 1972, pp. 68-72.
Burgess, R. R., Daniels, R. G., "C/MOS United with Silicon Gate to Yield Micropower Technology," Electronics, Aug. 30, 1971, pp. 38-43.

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