Catv converter with keylock to favorite channels

Details Catv converter with keylock to favorite channels Catv converter with keylock to favorite channels

1981-05-22

1984-01-10

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

3581911, 455 3, 455186, H04N 100

Patent

active

044255799

ABSTRACT:
A cable television converter includes an oscillator and mixer for conversion of a selected input television channel to the specific output frequency of the converter. There is a program selection device, and a memory responsive thereto whereby a subscriber may designate certain channels for conversion to the output frequency. The program selection device provides for restricting access to only those designated channels in the memory whereby a subscriber may control access of members of the household to only certain permitted channels.

REFERENCES:
patent: 4206483 (1980-06-01), Nakamura
patent: 4214274 (1980-07-01), Rzeszewski
patent: 4228543 (1980-10-01), Jackson
patent: 4317213 (1982-02-01), Lommzo
patent: 4325081 (1982-04-01), Abe et al.
K. Fwkui et al., "A Portable All-Band Radio Receiver Using Micro Computer Controlled PLL Synthesizer" IEEE Transactions on Computer Electronics, vol. CE-26, Aug. 1980.

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