| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a radio wave receiving device or a radio-controlled timepiece for detecting zero-second timing or performing second correction of an internal time piece under little influence of an external noise, and saving useless power consumption by detection of the zero-second timing and by processing the second correction of the internal timepiece. <P>SOLUTION: This device includes a reception control means for receiving a radio wave and processing demodulation of a data pulse during a reception period W0-W4 of a zero-data pulse having the widest pulse width and arranged fixedly on a position determined beforehand in a frame of a time code, and second detection of the time code is performed based on a signal waveform of the zero-data pulse received and modulated during the reception period W0-W4 of the zero-data pulse. <P>COPYRIGHT: (C)2009,JPO&INPIT |
