Method and apparatus for transferring time information to a watc

Details Method and apparatus for transferring time information to a watc Method and apparatus for transferring time information to a watc

1996-11-21

1998-07-07

Roskoski, Bernard

Horology: time measuring systems or devices

Plural timepiece system or system device

With wireless synchronization

368 10, G04C 1102

Patent

active

057779503

ABSTRACT:
A wristwatch is set by optically transmitting time of day information from a wall clock or table clock to an optical sensor in the wristwatch. The time information is optically transmitted as sequential light pulses by controlling a light source, such as a light emitting diode (LED) in the wall clock or table clock.

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patent: 4534012 (1985-08-01), Yokozawa
patent: 5488571 (1996-01-01), Jacobs et al.

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