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:
Jan. 27, 1987
Filed:
Sep. 07, 1984
Norio Suzuki, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A circuit for detecting the degree of movement in a television signal. The circuit is not affected by the direction in which picture elements move over the image area. Primarily, differences from frame to frame are detected as well as differences between picture elements of the same frame or picture element differences from frame to frame. The degree of image movement is determined by the ratio of the signal representing the frame difference and of a signal which represents the sum of the picture element differences. In further embodiments, image movement detection is based on detecting the brightness and/or chrominance components of the television signal and producing the frame difference signal based on these signal components or as a ratio of the frame difference signal and these signal components. The brightness (Y) signal can be extracted from the input television signal in a high frequency brightness signal extracting circuit. The frame difference signal is then based on the frame to frame difference of this high frequency Y signal.