Television – Display or receiver with built-in test signal generator,...
Patent
1995-08-29
1997-10-14
Kostak, Victor R.
Television
Display or receiver with built-in test signal generator,...
348189, H04N 1704
Patent
active
056777310
ABSTRACT:
A protective device for a television receiver having detection circuits to detect various types of malfunctioning of the television receiver. The protective device identifies the malfunction at the moment when the malfunction takes place and responds accordingly by classifying the types of malfunctioning into two groups: one group requiring immediate corrective action and the other group requiring a corrective action after observation of the malfunctioning for a certain time period. The protective device for a television receiver detects malfunctioning of the television receiver and outputs detection signals with the voltage values thereof differing from one another, produces a composite signal by combining the detection signals, and controls the time elapsed before the power supply is placed in a dormant state according to the voltage value of the foregoing composite detection signal.
REFERENCES:
patent: 4058754 (1977-11-01), Ohnishi et al.
patent: 4074323 (1978-02-01), Griffey
patent: 4090111 (1978-05-01), Suzuki
patent: 5430596 (1995-07-01), Hamaguchi et al.
patent: 5491794 (1996-02-01), Wu
Kostak Victor R.
Matsushita Electric - Industrial Co., Ltd.
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