Digital clock

Horology: time measuring systems or devices – Chronological – With manually actuated display

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Details

368 73, 368239, 345 34, 345173, G04C 1700, G04C 1900, G09G 500

Patent

active

054870534

ABSTRACT:
A digital clock comprises an electronic timekeeping circuit, plus an electronic digital display connected to the time keeping circuit to display time as controlled by the circuit. An electronic control is provided to permit changing of individual numerals displayed in a plurality of locations by manually pointing at the individual numerals. The electronic control may comprise a transparent, touch-sensitive detector, positioned in front of the digital display to permit manual changing of the individual numerals.

REFERENCES:
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patent: 4139837 (1979-02-01), Liljenwall et al.
patent: 4149257 (1979-04-01), Nakagiri et al.
patent: 4322833 (1982-03-01), Husted
patent: 4387367 (1983-06-01), Fisher
patent: 4538924 (1985-09-01), Nakata
patent: 4785432 (1988-11-01), Havel
patent: 4847606 (1989-07-01), Beiswenger
patent: 4910504 (1990-03-01), Eriksson
patent: 4958911 (1990-09-01), Beiswenger et al.

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