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:
Oct. 16, 2007
Filed:
Apr. 23, 2002
Masaharu Tokuhara, Kanagawa, JP;
Toshio Sarugaku, Chiba, JP;
Naoki Kaneko, Kanagawa, JP;
Seiko Imai, Chiba, JP;
Masaharu Tokuhara, Kanagawa, JP;
Toshio Sarugaku, Chiba, JP;
Naoki Kaneko, Kanagawa, JP;
Seiko Imai, Chiba, JP;
Sony Corporation, , JP;
Abstract
There is provided a video signal processing apparatus that makes it possible to realize a favorable display of pictures by increasing the detection accuracy of the video source of an input video signal and by using an appropriate scanning method for an output video signal in accordance with the determined type of video source. The video signal processing apparatus includes video source determining means for determining whether the video source of a video signal is a film source, calculating means for calculating a degree of difference between a picture of a field of the video signal and a picture of a field of a delayed video signal, threshold setting means, comparison means for comparing the degree of difference and a threshold and determining whether the pictures of each field match, and a signal pattern detecting means for detecting a signal pattern of a signal outputted by the comparison means and determining whether the video source is a film source, with the threshold setting means outputting respectively different thresholds in a state where the video source is determined to be a film source and a state where the video source is not determined to be a film source.