Horology: time measuring systems or devices – Plural timepiece system or system device – With wireless synchronization
Patent
1994-01-07
1995-09-05
Roskoski, Bernard
Horology: time measuring systems or devices
Plural timepiece system or system device
With wireless synchronization
368 55, G04C 1102
Patent
active
054485339
ABSTRACT:
A highly accurate time keeping device and time keeping system are disclosed. Time of day information is periodically sent to a wristwatch via radio signal. The time of day as displayed by the watch is updated periodically using the radio signal data and maintained between such periodic updates according to an algorithm of the present invention. The disclosed time keeping system thereby maintains a plurality of time keeping devices in substantially exact synchronization over an extended period.
REFERENCES:
patent: 4582434 (1986-04-01), Plangger et al.
patent: 4650344 (1987-03-01), Allgaier et al.
patent: 4768178 (1988-08-01), Conklin et al.
patent: 4823328 (1989-04-01), Conklin et al.
Galbi Elmer
Roskoski Bernard
Seiko Corporation
Seiko Epson Corporation
LandOfFree
Method and apparatus for accurate time maintenance and display does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for accurate time maintenance and display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for accurate time maintenance and display will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-478563