Title:
時刻情報取得装置、および、電波時計
Document Type and Number:
Japanese Patent JP5263270
Kind Code:
B2
Abstract:
A time-information obtaining apparatus is provided with an input waveform data pattern generating unit (21,24) for sampling a received standard-time radio wave signal to generate an input waveform data pattern, an internal time counting unit (17) for generating a base time, a calculation-waveform data pattern generating unit (23) for generating plural calculation-waveform data patterns based on the base time, an invalid-bit detecting unit (31) for detecting in the plural calculation-waveform data patterns, invalid bits not to be compared with the input waveform data pattern, an error counting unit (32) for comparing the sample values of valid bits of the plural calculation-waveform data patterns with the invalid bits removed and the corresponding sample values of the input waveform data pattern to detect discrepancies between them, and a present-time correcting unit (11,26) for correcting the base time based on the calculation-waveform data pattern having the smallest number of errors.
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Inventors:
Keiichi Nomura
Hideo Abe
Hideo Abe
Application Number:
JP2010263206A
Publication Date:
August 14, 2013
Filing Date:
November 26, 2010
Export Citation:
Assignee:
CASIO COMPUTER CO.,LTD.
International Classes:
G04G5/00; G04R20/12
Domestic Patent References:
| JP2009216544A | ||||
| JP2010025651A |
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