Apparatus for detecting and displaying supplementary program

Details Apparatus for detecting and displaying supplementary program Apparatus for detecting and displaying supplementary program

1996-09-19

1999-03-09

Hsia, Sherrie

Television

Basic receiver with additional function

For display of additional information

348569, 348468, 348589, H04N 5445

Patent

active

058807896

ABSTRACT:
A teletext/data transmission decoder decodes information on characters and graphics and produces a supplementary program video signal. A proper program video signal arriving by way of a video processing circuit and a display image processing section and the supplementary program video signal coming from the decoder are synthetically combined by a synthesizing section and fed to a display unit. A system controller sets the decoder in a waiting state. If the proper program video signal contains data information, the system controller automatically starts a decoding operation and controls the synthesizing section to display the restored signal on the display unit. When an automatic display select switch is set to an automatic display mode, a supplementary program processing mode is automatically selected when a supplementary program is started.

REFERENCES:
patent: 5109279 (1992-04-01), Ando
Patent Abstracts of Japan, vol. 013, No. 371 (E-807) Aug. 1989 re JP-A-1-125,185.

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