| 摘要 |
<p>PURPOSE:To avoid a reception fault owing to the higher harmonic component of a clock by switching the clock frequency of a control microcomputer based on a reception frequency. CONSTITUTION:When the reception frequency of a reception part 1 is that interfered by a clock or the higher harmonic component of the frequency- dividing signal, the frequency of the clock is shifted based on an information signal. Namely, the clock frequency fc of a microcomputer 10 is shifted in correspondence with the reception frequency fr at the time of receiving FM broadcasting. Thus, the reception of FM broadcasting is not interfered by the higher harmonic component Sh of the clock CK, and the microcomputer 10 can execute a processing at sufficient speed. Then, operations for a radio cassette can be set various under the microcomputer 10.</p> |
