The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 1980
Filed:
Apr. 18, 1979
Kentaro Hanma, Yokohama, JP;
Takeshi Murakami, Ridgewood, NJ (US);
Hitachi, Ltd., , JP;
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.