Three digit channel entry system

Details Three digit channel entry system Three digit channel entry system

1990-03-05

1991-05-28

Chin, Tommy P.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

3581941, 455603, H04N 544, H04B 1100

Patent

active

050201409

ABSTRACT:
A channel number data entry system for a television receiver employing a numeric keyboard allows the selection of cable channels having channel numbers greater than 99, without the use of a separate ENTER or 100s key. Specifically, if a predetermined unused or invalid channel number, such as 00, is entered, then the on-screen display message 1.sub.-- is generated, and a three digit channel entry mode is enabled. If a valid and used two digit channel number is entered, then a two digit channel entry mode is enabled. In both modes, the desired channel is tuned upon receipt of the final digit of the channel number.

REFERENCES:
patent: 3943451 (1976-03-01), Stoddard
patent: 4162513 (1979-07-01), Beyers, Jr. et al.
patent: 4386436 (1983-05-01), Kocher et al.
The User Manual for the MBC 300 Multi-Brand Remote Control, printed 1989.

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