摘要:
The electronic apparatus includes at least a receiver having synthesizer section for selecting a receiving frequency and providing an information signal corresponding to the selected receiving frequency, a micro-computer operating on a clock signal (fc) for controlling the synthesizer section, and a circuit responsive to the information signal for shifting the clock frequency when the selected receiving frequency is a frequency disturbed by a higher harmonic (Sh) of the clock frequency, thereby to avoid disturbance of reception of the broadcast signal without requiring undue reduction of the clock frequency.
摘要:
A disc recording and/or reproducing apparatus with a radio receiving function where a recording/playback unit (2) having a high-frequency clock generator is housed in a shield case (11), and both input and output signals (14) of the recording/playback unit (2) are transferred to and from other circuits via opto-electric convertors (15,17) and electro-optical convertors (16,18) disposed inside and outside the case, so that any unrequited high-frequency components radiated from input and output connection leadwires piercing through the shield case (11) can be suppressed, consequently to achieve remarkable reduction of the high-frequency noise entering into the radio receiving unit.
摘要:
A disc recording and/or reproducing apparatus with a radio receiving function where a recording/playback unit (2) having a high-frequency clock generator is housed in a shield case (11), and both input and output signals (14) of the recording/playback unit (2) are transferred to and from other circuits via opto-electric convertors (15,17) and electro-optical convertors (16,18) disposed inside and outside the case, so that any unrequited high-frequency components radiated from input and output connection leadwires piercing through the shield case (11) can be suppressed, consequently to achieve remarkable reduction of the high-frequency noise entering into the radio receiving unit.
摘要:
The electronic apparatus includes at least a receiver having synthesizer section for selecting a receiving frequency and providing an information signal corresponding to the selected receiving frequency, a micro-computer operating on a clock signal (fc) for controlling the synthesizer section, and a circuit responsive to the information signal for shifting the clock frequency when the selected receiving frequency is a frequency disturbed by a higher harmonic (Sh) of the clock frequency, thereby to avoid disturbance of reception of the broadcast signal without requiring undue reduction of the clock frequency.