Receiving device with timekeeping function

Details Receiving device with timekeeping function Receiving device with timekeeping function

1991-06-07

1993-11-23

Roskoski, Bernard

Horology: time measuring systems or devices

Plural timepiece system or system device

With wireless synchronization

G04C 1102

Patent

active

052650707

ABSTRACT:
A receiver with timekeeping function for maintaining and displaying at least two different times of day which are each updated based on an external signal. The receiver includes first timekeeping circuitry for generating first time related information and second timekeeping circuitry for generating second time related information. Each time of day is represented by hours, minutes and seconds. The second time of day is further adjusted based on the adjustments made to the first time of day to insure that the second time of day does not gain or lose a minute of time.

REFERENCES:
patent: 4204398 (1980-05-01), Lemelson
patent: 4440501 (1984-04-01), Schulz
patent: 4525685 (1985-06-01), Hesselberth et al.
patent: 4569598 (1986-02-01), Jacobs
patent: 4582434 (1986-04-01), Plangger et al.
patent: 4650344 (1987-03-01), Allgaier
patent: 4823328 (1989-04-01), Conklin et al.
Entwicklung und Technischer Stand Funkgesteuerter Gross-und Armbankuhren by Die Junghans Mega 1 (catalog), 1990.

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