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:
Aug. 20, 1996
Filed:
Jul. 11, 1995
Applicant:
Inventors:
Kazumasa Ikeda, Tokyo, JP;
Ken Hirata, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kanagawa-ken, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348668 ; 348665 ; 348667 ;
Abstract
A vertical impulse detecting circuit 104 detects the difference between a level of data of a present horizontal line of an input composite picture signal and a level of data of each of a horizontal line a plurality of lines ahead and a horizontal line a plurality of lines behind. Either an output signal of a three-line chrominance signal separating circuit 100 or an output signal of a horizontal chrominance signal separating circuit 101 is selected as a chrominance signal (CC) that is supplied to a subtracter 105 according to an output signal of the vertical impulse detecting circuit 104.