Radio-corrected timepiece

Details Radio-corrected timepiece Radio-corrected timepiece

2006-05-09

2006-05-09

Miska, Vit W. (Department: 2841)

Horology: time measuring systems or devices

Plural timepiece system or system device

With wireless synchronization

Reexamination Certificate

active

07042808

ABSTRACT:
To make a time instant correction possible while suppressing an electric power consumption due to a reception of radio wave containing a time instant information. When a reception means has been made into its operation state in order to receive the radio wave containing plural markers disposed in predetermined positions and the time instant information, in a case where the marker initially received has been a reference marker M corresponding to an exact minute position, the time instant information is obtained by continuing the reception intact, and a time instant of a clock means is corrected and displayed to a display means. When the marker initially detected has been a position marker P, the reception means is made into its non-operation state. After 9 seconds from this point in time, the reception means is made again into the operation state in order to receive the reference marker M appearing after a constant time. This operation is repeated till the reference marker M can be detected, thereby performing the time instant correction.

REFERENCES:
patent: 4194153 (1980-03-01), Masaki et al.
patent: 5036500 (1991-07-01), Ganter
patent: 5444672 (1995-08-01), Kushita
patent: 5528560 (1996-06-01), Ogiyama
patent: 5898643 (1999-04-01), Yasuoka et al.
patent: 6967901 (2005-11-01), Shimizu
patent: 2003/0198140 (2003-10-01), Shimizu
patent: 2545662 (1993-06-01), None
patent: 2503376 (1994-02-01), None

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