Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1979-04-18
1980-12-02
Griffin, Robert L.
Facsimile and static presentation processing
Static presentation processing
Attribute control
H04N 9537
Patent
active
042374766
ABSTRACT:
A television receiver provided with a circuit automatic tilt control circuit which can automatically correct the frequency response characteristic of the television signal. The television receiver comprises an SAW filter having one input electrode set and two output electrode sets, and a frequency response controlling circuit in which intermediate frequency signals delivered from the two output electrode sets of the SAW filter are added together and the amplitude of a summed intermediate frequency signal is varied. The frequency response of the frequency response controlling circuit is controlled by detecting the amplitude of the color burst signal such that the amplitude of the color burst signal is constantly invariable. In the event that amplitudes of the picture signal high frequency component and the chrominance subcarrier become excessive or insufficient, the amplitudes are corrected to correct values to ensure that high quality pictures can constantly be displayed on the screen of the television receiver.
REFERENCES:
patent: 3079461 (1963-02-01), Keizer
patent: 3582540 (1971-06-01), Adler
patent: 3749824 (1973-07-01), Sagishima
Hanma Kentaro
Murakami Takeshi
Griffin Robert L.
Hitachi , Ltd.
Masinick Michael A.
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