05557338 is referenced by 222 patents and cites 7 patents.

A television receiver system having secondary picture display capability (such as PIP or POP) includes two tuners and signal processing arrangements, and circuitry for receiving a transmitted channel guide. In response to a "BROWSE" command, the receiver maintains the currently-tuned first channel as the source for the main picture, displays text related to a television show on a second channel, activates the secondary picture display circuitry, and tunes the second tuner to the second channel. In this way, the viewer can simultaneously get the benefit of both a text description of the television show on the second channel and view a secondary image of the television show on the second channel, without tuning away from the first channel supplying the main picture.

Title
Television receiver using received channel guide information and a secondary video signal processor for displaying secondary channel information
Application Number
8/419649
Publication Number
5557338
Application Date
April 5, 1995
Publication Date
September 17, 1996
Inventor
Joseph W Forler
Indianapolis
IN, US
Kenneth W Maze
Indianapolis
IN, US
Agent
Peter M Emanuel
Thomas F Lenihan
Joseph S Tripoli
Assignee
Thomson Consumer Electronics
IN, US
IPC
H04N 7/173
H04N 5/45
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