Radio receiver

Details Radio receiver Radio receiver

H - Electricity

04

B

325/117

H04B 1/06 (2006.01) H03J 5/02 (2006.01) H03J 7/28 (2006.01) H04B 1/26 (2006.01)

Patent

CA 1096447

ABSTRACT OF THE DISCLOSURE A radio receiver having RF, frequency converter, de- modulator and audio stages, in which the frequency converter stage is connected to a local oscillator composed of a phase locked loop. The radio receiver includes a variable frequency divider inserted into the phase locked loop, a memory circuit for variably controlling the frequency dividing ratio of the frequency divider in accordance with a signal to be received, a scanning counter for supplying a read-out control signal to the memory circuit, a clock signal source for generating a clock signal, a counter control circuit for controll- ing supply and supply-terminating of the clock signal fed to the scanning counter, a level detecting circuit for detecting if a signal level, a switching circuit for switching a received channel, and a circuit for cutting off the clock signal fed to the scanning counter when outputs of the switching circuit and level detecting circuit are fed thereto.

280614

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