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. 18, 1987
Filed:
Jul. 02, 1986
Applicant:
Inventor:
Masahiko Achiha, Iruma, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 36 ; 358 37 ;
Abstract
Disclosed is a picture movement detection circuit for use for processing a color television signal, that is, a circuit for detecting temporal variations in chrominance signal level of a color televison picture. A signal corresponding to the magnitude of an absolute value, an amplitude, or the like, of a difference or addition signal between frames or field of a modulated chrominance signal of a color television signal is obtained, and a low frequency component is extracted out of the thus obtained signal so that the extracted low frequency component is used as movement information of the picture.