SATELLITE RADIO WAVE RECEIVING DEVICE, RADIO CONTROLLED CLOCK, INFORMATION ACQUISITION METHOD, AND PROGRAM

PROBLEM TO BE SOLVED: To provide a satellite radio wave receiving device, a radio controlled clock, an information acquisition method, and a program with which it is possible to accurately acquire a time-of-day information while suppressing an unnecessary load and power consumption.SOLUTION: A satel...

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1. Verfasser: MATSUE TSUYOSHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a satellite radio wave receiving device, a radio controlled clock, an information acquisition method, and a program with which it is possible to accurately acquire a time-of-day information while suppressing an unnecessary load and power consumption.SOLUTION: A satellite radio wave receiving device of the present invention comprises satellite radio wave reception means, and acquisition means for identifying the array of codes included in a received radio wave and the reception timing of the array, with the code value of each of a plurality of codes being inverted under a prescribed condition for each code block, the acquisition means deciding a supposed code for which the inversion corresponding to radio wave reception timing is not taken into account, identifying a plurality of received codes from the received radio wave, collating the supposed code within a preset deviation width from the reception timing of the received codes against each of the received codes, holding information pertaining to the collation result for each deviation amount with regard to the plurality of received codes, determining for each code block that the one having larger number of matches and mismatches is conformant, and identifying a deviation amount in which the integrated number of conformants corresponding to the integrated value per deviation amount of the number of conforming codes in a plurality of code blocks satisfies a prescribed conformance condition.SELECTED DRAWING: Figure 4 【課題】不要な負荷や電力消費を抑制しつつ正確に時刻情報を取得可能な衛星電波受信装置、電波時計、情報取得方法及びプログラムを提供する。【解決手段】衛星電波受信装置は、衛星電波の受信手段と、受信電波に含まれる符号の配列及び配列の受信タイミングを同定する取得手段とを備え、複数の符号は、各符号値が符号ブロック毎に所定の条件で各々反転され、取得手段は、電波受信タイミングに応じた反転を考慮しない想定符号を定め、受信電波から複数の受信符号を同定し、受信符号の受信タイミングに対して予め設定されたずれ幅内の想定符号と受信符号とを各々照合し、照合結果に係る情報をずれ量毎に複数の受信符号について保持し、符号ブロック毎に一致及び不一致の数が多い方を合致と判定し、複数の符号ブロックにおける合致符号数のずれ量毎の積算値に応じた積算合致数が所定の合致条件を満たすずれ量を同定する。【選択図】図4