Sequential channel selector system

Details Sequential channel selector system Sequential channel selector system

H - Electricity

04

B

365/18, 365/8

H04B 1/40 (2006.01) H03J 7/18 (2006.01) H03J 7/28 (2006.01)

Patent

CA 1155928

- 1 - Abstract of the Disclosure A channel selector system in a radio for sequentially selecting one of a plurality of channels and rapidly scanning through any restricted channels such that the restricted channels are not displayed and appear to be skipped. The radio includes a frequency synthesizer for generating a predetermined frequency associated with each selected channel and the channel selector system has a sig- nal generator which causes the frequency synthesizer to sequentially either step or scan through the channels including some channels which may be restricted. The gener- ator provides an output coded signal to indicate selection of a restricted channel which is decoded by decoding circui- try. A scan timer is responsive to the decoded signal to cause the signal generator to rapidly scan through re- stricted channels. A latching circuit latches a signal generator input during rapid scanning through restricted channels until the system advances to the next unrestricted channel. Related methods are disclosed.

352729

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