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:
Nov. 15, 1983
Filed:
Oct. 02, 1981
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Abstract
In a color signal processing circuit having first and second chroma amplifiers, a burst amplifier for extracting a color burst signal from an output signal of the first chroma amplifier, a synchronous color killer detector for detecting the color burst signal and for turning on/off the second chroma amplifier in accordance with the amplitude of the color burst signal and a peak detection type automatic chroma control circuit for controlling the gain of the first chroma amplifier in accordance with the amplitude of the color burst signal, a switching circuit is provided for operating the automatic chroma control circuit when the output voltage of the color killer detector reaches a second level which is higher than a first level at which the second chroma amplifier is turned on.