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. 08, 2008
Filed:
Nov. 11, 2002
Michiyuki Sugino, Chiba, JP;
Yuji Kikuchi, Kuroiso, JP;
Toshihiko Osada, Sakura, JP;
Takashi Yoshii, Chiba, JP;
Makoto Shiomi, Tenri, JP;
Michiyuki Sugino, Chiba, JP;
Yuji Kikuchi, Kuroiso, JP;
Toshihiko Osada, Sakura, JP;
Takashi Yoshii, Chiba, JP;
Makoto Shiomi, Tenri, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
An edge detecting circuit detects whether a particular pixel belongs to an edge by determining whether the differential value of the pixel from the neighboring pixel is equal to or greater than a threshold. Based on the detection result, an emphasis converter stops OS drive when the image of a pixel area is regarded as an edge image in accordance with the detected result of the edge detecting circuit and implements OS drive when the image of a pixel area is not regarded as an edge image. In this way, the edge detecting circuit detects edge portions of the input video, whereby OS drive in the emphasis converter can be controlled so as to be turned on and off.