Apparatus and method for diagnosing received broadcast signals u

Details Apparatus and method for diagnosing received broadcast signals u Apparatus and method for diagnosing received broadcast signals u

1995-06-06

1998-01-27

Harvey, David E.

Television

Basic receiver with additional function

For display of additional information

348569, H04N 5445

Patent

active

057126909

ABSTRACT:
A broadcast state self-diagnostic apparatus and method detects a horizontal sync signal from a video signal received through an antenna, counts the number associated with the detected horizontal sync signal, compares this value with the number associated with a reference horizontal sync signal, detects the level of the video signal by using an AGC signal, and compares the detected level of the video signal with a reference level. A user can easily see that a noise is generated by the broadcast state rather than the television, itself, by displaying an OSD character showing the abnormal state of the broadcast signal according to the compared result.

REFERENCES:
patent: 4837623 (1989-06-01), Motoyama

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