Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1989-05-05
1991-09-10
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455186, H04B 1702
Patent
active
050481193
ABSTRACT:
A broadcast receiver such as a car radio has an electronic tuning circuit and a memory for storing preset stations. The strongest receivable transmitters in the surroundings are searched and stored in the memory by means of an automatic storage program. Subsequently the stored transmitters can be selected in a given sequence by means of successive program keys. To improve convenience of operation, the control circuit in the broadcast receiver further comprises an interchange program 21 so as to interchange the tuning values of preset stations stored in the memory. The stored stations can be subsequently selected by means of the successive program selection keys in a sequence desired by the user.
REFERENCES:
patent: 4271532 (1981-06-01), Wine
patent: 4367559 (1983-01-01), Tults
patent: 4561112 (1985-12-01), Ridder
patent: 4667183 (1987-05-01), Gaudio
Charouel Lisa
Eisenzopf Reinhard J.
Goodman Edward W.
U.S. Philips Corporation
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