Previous channel feature in a television receiver having multipl

Details Previous channel feature in a television receiver having multipl Previous channel feature in a television receiver having multipl

1990-09-24

1992-11-03

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

3581911, 4551601, 4551611, 4551681, 4551851, H04N 550

Patent

active

051610230

ABSTRACT:
In a television receiver including a plurality of RF input terminals, each of which having a respective scan list, and each scan list having an associated Last Tuned Channel register, and having a common Current Channel register, there is provided a Previous Channel and RF Input register. The Previous Channel and RF Input register and the Current Channel register both hold tuning information and RF input terminal information which allow retuning of a formerly tuned channel regardless of which RF input provides the signal for that channel. In one embodiment of the invention, the scan lists are linked providing an easy way to scan through the channels of all scan lists, and an easy return to a previously tuned channel from any RF input via operation of a Previous Channel (PC) key.

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