Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1980-04-29
1982-10-19
Chin, Tommy P.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455186, 455166, H04B 126
Patent
active
043554156
ABSTRACT:
A television tuning system includes a memory for storing tuning information with first and second groups of memory locations for storing different tuning information for the same group of predetermined channels. A mode switch, in a first mode, allows memory locations in the first group to be addressed when channels in the predetermined group are selected and in a second mode allows memory locations in the second group to be addressed when channels in the predetermined group are selected. Such an arrangement is useful in a motel, hotel or hospital to allow certain channels in a list of channels to be selected when a rental fee has been paid and to exclude those certain channels when the rental fee has not been paid.
REFERENCES:
patent: 4031474 (1977-06-01), Ehni
patent: 4031549 (1977-06-01), Rast et al.
patent: 4131853 (1978-12-01), Dreiske
patent: 4164711 (1979-08-01), Steckler et al.
patent: 4236251 (1980-11-01), Ohgishi
RCA Television Service Data-Chassis CTC 93 Series, File 1978 C-7.
Frequency Synthesis Custom LSI: The Inside Story, by H. Blatter, IEEE Transactions on Consumer Electronics, vol. CE-24, No. 3, pp. 429-435, Aug. 1978.
RCA--Television Service Data Hotel/Motel/Hospital Series, File 1976 C1-1S1.
George John B.
Testin William J.
Chin Tommy P.
Emanuel P. M.
Rasmussen P. J.
RCA Corporation
Whitacre E. M.
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