TV of internal PiP type for receiving the character multibroadca

Details TV of internal PiP type for receiving the character multibroadca TV of internal PiP type for receiving the character multibroadca

1989-07-12

1991-06-11

Shepperd, John W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358181, 358183, H04N 787, H04N 5268, H04N 5262, H04N 5272

Patent

active

050237217

ABSTRACT:
The invention provides a TV of internal PiP type for receiving the character multibroadcasting which installs the character multiblock having PiP block which is constructed so that a complex signal or a composite image signal of the IF circuit are selected at a switching board and is applied to a Y/C processor and a PiP processor, the device comprising, a teletext-processing circuit for providing a composite synchronization signal and RGB signal after extraction and decoding of the character multiinformation included in the composite image signal which is provided from the intermediate frequency(IF) circuit an encoder for providing a first composite image signal by encoding said composite synchronization signal and RGB signal, and a switch for providing the composite image signals provided from said IF circuit and the encoder, respectively, to the switching board by switching of a control signal provided from the teletext-processing circuit. Diversifying capabilities more than the receipt of simple character multibroadcasting or the conventional PiP may be possible and watching simultaneously both video signal and character multiinformation may be attained according to the present invention.

REFERENCES:
patent: 4663668 (1987-05-01), Rabii et al.
patent: 4665438 (1987-05-01), Miron et al.
patent: 4680629 (1987-07-01), Fukushima et al.

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