| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a receiving circuit for a radio clock, which is capable of adopting more sophisticated deciphering algorithm and improving receiving sensitivity by outputting a digital signal as a time code signal including multi-bit data and increasing information capacity to be processed by a control part. <P>SOLUTION: The receiving circuit for the radio clock for generating a time code signal from a long-wave standard radio wave including time information received by an external antenna 1 and outputting the time code signal includes: a filter circuit 5 for acquiring an intermediate receiving signal including time information on the basis of a received long-wave standard radio signal; an A/D conversion circuit 6 for converting the intermediate receiving signal into a digital signal; detection means 9 for detecting the digital intermediate receiving signal; and multi-level means 13 for outputting the detected digital signal as a time code signal including multi-bit data sampled by a suitable frequency. <P>COPYRIGHT: (C)2013,JPO&INPIT |
