Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1979-01-22
1981-02-24
Ng, Jin F.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455184, 455185, H03J 718
Patent
active
042531942
ABSTRACT:
A receiver scanning circuit features a grouping of the stored frequencies, such as by geographical area or program content. Thus only one kind of station from a selected group need by stopped at, if only that kind of group is desired to be received. This greatly increases operator convenience.
REFERENCES:
patent: 3750030 (1973-07-01), Worcester
patent: 3803494 (1974-04-01), Howell et al.
patent: 3824475 (1974-07-01), Pflasterer
patent: 3895303 (1975-07-01), Imazeki et al.
patent: 3940702 (1976-02-01), Yoshimura et al.
patent: 3942121 (1976-03-01), Bell et al.
Briody Thomas A.
Goodman Edward W.
Ng Jin F.
Streeter William J.
U.S. Philips Corporation
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