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:
May. 22, 2007
Filed:
Aug. 15, 2003
Seiko Imai, Chiba, JP;
Toshio Sarugaku, Chiba, JP;
Naoki Kaneko, Kanagawa, JP;
Takaya Hoshino, Saitama, JP;
Seiko Imai, Chiba, JP;
Toshio Sarugaku, Chiba, JP;
Naoki Kaneko, Kanagawa, JP;
Takaya Hoshino, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
To enable a satisfactory suppression of overemphasized component after converting the number of scanning lines of video signal, when the video signal is converted in the number of scanning lines and a high-frequency component at least in a vertical direction of the converted video signal is emphasized, signals delayed by a plurality of stages of time equal to or more than a time required for converting the number of scanning lines are obtained by a delay circuit, and an appropriate delay signal is selected from among the plurality of delay signals by a selection circuit. The selected delay signal is compared with the emphasized video signal in emphasized-component detector circuitsand the overemphasized component is detected. Processing to suppress the emphasis is performed by suppressor circuitswith respect to a portion where the overemphasized signal component is detected.