H - Electricity – 03 – B
Patent
H - Electricity
03
B
331/10, 325/106
H03B 21/02 (2006.01) H03J 5/02 (2006.01) H04B 1/16 (2006.01)
Patent
CA 1056466
ABSTRACT OF THE DISCLOSURE A digital frequency synthesizer radio receiver, com- prising a scan memory for storing a digital value data concerning a broadcasting frequency; a digital value data entry device for selectively entering a digital value concerning a broadcasting frequency; a preset memory having a plurality of storing loca- tions, each adapted for storing a digital value concerning a specified broadcasting frequency, a channel selector coupled to the preset memory for selecting one of the storing locations thereof, the preset memory being responsive to the channel selector and the digital value data entry device for loading the entered digital value data in the location of the preset memory selected by the channel selector; and a phase locked loop sele- tively and operatively coupled to either of the scan memory and the preset memory for providing an oscillation frequency signal the frequency of which is associated with the digital value data loaded in the selected on of the scan memory and the preset memory. Preferably, the scan memory comprises a plurality of memories, each allotted for a frequency band, and the preset memory is structered subh that each location comprises a plurality of regions, each allotted for a frequency band, whereby a multi- band frequency synthesizer radio receiver is provided.
287042
Akiyama Toru
Ohgishi Tsutomu
Sakurai Tadashi
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