ELECTRONIC DEVICE, EXTERNAL ADJUSTING DEVICE FOR ELECTRONIC DEVICE AND METHOD OF ADJUSTING ELECTRONIC DEVICE

WIPO Patent Application WO/2000/058794

A1

When a frequency measuring unit measures the frequency of a temperature-sensitive oscillation test signal and the frequency of a driving pulse signal from an electronic device via a coil electrically coupled with a motor coil, a temperature correction data generating unit generates temperature correction data based on the temperature-sensitive oscillation test signal and the driving pulse signal. The temperature correction data is sent to an analog electronic clock through a coil. Namely, the state of the clock is measured in a noncontact way, and the temperature correction data collected by the results of the measurement is sent to the clock to adjust the clock by an externally mounted device.

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KAWAGUCHI TAKASHI (JP)
FUJISAWA TERUHIKO (JP)

PCT/JP2000/002031

October 05, 2000

March 30, 2000

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SEIKO EPSON CORP (JP)
KAWAGUCHI TAKASHI (JP)
FUJISAWA TERUHIKO (JP)

G04C9/04; G04D7/00; G04D7/12; G04F5/06; G04G3/00; G04G3/02; G04G21/04; (IPC1-7): G04D7/00; G04C3/00; G04C3/14; G04C9/00; G04G1/00; G04G3/02

JPH1184028A	1999-03-26
JPS5770417A	1982-04-30
JPH0346408A	1991-02-27
JPH06207992A	1994-07-26
JPS5489672A	1979-07-16
US4051663A	1977-10-04
JPS5057670A	1975-05-20

See also references of EP 1089145A4

Kawasaki, Kenji (7th Floor 2-10, Nihonbashi 1-chome Chuo-ku Tokyo, JP)

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