Watch system having asynchronous counters implemented by D and i

Details Watch system having asynchronous counters implemented by D and i Watch system having asynchronous counters implemented by D and i

1974-02-19

1976-06-22

Jackmon, Edith Simmons

58 50R, 328 48, G04C 300, G04B 1930

Patent

active

039642518

ABSTRACT:
An electronic timekeeping system is implemented in bipolar integrated circuit technology for displaying time by way of a digital display. The bipolar circuitry is implemented utilizing integrated injection logic with asynchronous counters having outputs synchronized with the clock before coupling to the succeeding counter function, such as between the seconds and minutes counters. "D" flip-flops are utilized such that a D input is provided instead of a D input.

REFERENCES:
patent: 3673501 (1972-06-01), Zeph
patent: 3699763 (1972-10-01), Zeph
patent: 3813533 (1974-05-01), Cone et al.
patent: 3899691 (1975-08-01), Hama

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