CHANNEL SELECTION METHOD FOR RADIO RECEIVER AND HIGH-SPEED SCANNING RADIO RECEIVER

PURPOSE:To realize high-speed scanning in the radio receiver which performs electronical channel tuning in a frequency synthesizer system. CONSTITUTION:A CPU 26 detects the squelch signal from a squelch circuit 16 and the output voltage of a frequency discriminator detected by a window detector and...

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Bibliographische Detailangaben
1. Verfasser:	MASAKI TATSUO
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING RESONANT CIRCUITS TRANSMISSION TUNING RESONANT CIRCUITS
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Beschreibung
Zusammenfassung:	PURPOSE:To realize high-speed scanning in the radio receiver which performs electronical channel tuning in a frequency synthesizer system. CONSTITUTION:A CPU 26 detects the squelch signal from a squelch circuit 16 and the output voltage of a frequency discriminator detected by a window detector and searches a signal at intervals of several channels; and when the signal is detected, data to the PLL circuit of a frequency synthesizer 24 is controlled to search the signal in every channel.