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:
Jul. 27, 1993
Filed:
Nov. 04, 1991
Masahiko Mawatari, Tokyo, JP;
Takashi Koga, Tokyo, JP;
Seiichi Tanaka, Tokyo, JP;
Naoki Matsuda, Tokyo, JP;
Masatoshi Sumiyoshi, Tokyo, JP;
Kabushiki Kaisha Toshiba, Kanagawa, JP;
Abstract
A Y/C separating apparatus includes a first separator for separating a stationary C component which has a demodulator for demodulating a color difference signal from the composite video signal with a color subcarrier signal, a detector for detecting a frame difference signal between two adjacent frames of the color difference signal and a modulator for modulating the frame difference signal with the color subcarrier signal so as to reproduce the stationary C component. Also included is a second separator for separating a moving C component by detecting a line difference signal between adjacent lines of the composite video signal, a motion detector for detecting a motion signal as a frame change between adjacent frames of the composite video signal, a first subtractor for subtracting the stationary C signal from the composite video signal so as to separate a stationary Y component, a second subtractor for subtracting the moving C component from the composite video signal so as to separate a moving Y component, a first mixer responsive to the motion signal for mixing the stationary C component and the moving C component with each other so as to output the C component and a second mixer responsive to the motion signal for mixing the stationary Y component and the moving Y component with each other to output the Y component.