Time correction circuits for electronic timepieces

Details Time correction circuits for electronic timepieces Time correction circuits for electronic timepieces

1975-11-20

1977-07-05

Schaefer, Robert K.

58 23R, G04C 300

Patent

active

040331091

ABSTRACT:
The time correction circuit comprises a switch, a first shift register circuit including two cascade connected shift registers driven by a 32 Hz clock pulse for shifting an electric signal generated by the operation of the switch, a second shift register circuit connected to the first shift register circuit and including two cascade connected shift registers driven by 1 Hz clock pulse for detecting the fact that whether the switch is maintained operated for an interval longer than a predetermined interval or not, a NOR gate circuit connected to receive the output from the two shift registers of the first shift register circuit, an AND gate circuit connected to receive the output signals from the first and second shift register circuits and a clock pulse having a predetermined frequency and an OR gate circuit connected to receive the output signals from the NOR gate circuit and the AND gate circuit.

REFERENCES:
patent: 3664116 (1972-05-01), Emerson et al.
patent: 3756013 (1973-09-01), Bergey et al.
patent: 3810356 (1974-05-01), Fujita
patent: 3841081 (1974-10-01), Komaki
patent: 3928959 (1975-12-01), Naito

Affiliated with

Also associated with

Rating

Time correction circuits for electronic timepieces does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Time correction circuits for electronic timepieces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time correction circuits for electronic timepieces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-569725