Analog radio clock with time zone conversion

Details Analog radio clock with time zone conversion Analog radio clock with time zone conversion

1996-09-25

1999-05-04

Miska, Vit

Horology: time measuring systems or devices

Plural time zones

368 47, G04B 1922, G04C 1102

Patent

active

059011157

ABSTRACT:
For time zone conversion an analog radio clock is provided with a switch device (31), preferably a rotary switch, through which an hour correction value is continuously provided. The UTC-Time received from a time signal transmitter is corrected corresponding to this hour value in a differential establishing step (33). Additionally the analog radio clock is provided with the possibility, to decode whether the time signal transmitter transmitted information is at that instant in a summer or winter time period. Insofar as summer time is decoded, the correction value from the switch device (31) is automatically increased by a value of 1. The output signal from the differential establishing step (33) is employed for step control of the analog radio clock, which thus automatically indicates the instantaneous correct local time upon corresponding setting of the switch device (31).

REFERENCES:
patent: 3279165 (1966-10-01), Burg
patent: 3653204 (1972-04-01), Miwa
patent: 3822545 (1974-07-01), Catto et al.
patent: 4117661 (1978-10-01), Bryant, Jr.
patent: 4204398 (1980-05-01), Lemelson
patent: 4287597 (1981-09-01), Paynter et al.
patent: 4582434 (1986-04-01), Plangger et al.
patent: 5077706 (1991-12-01), Ganter
patent: 5408445 (1995-04-01), Allgaier et al.

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