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:
Mar. 15, 1988
Filed:
Jul. 25, 1986
Kunio Matsumoto, Kanagawa, JP;
Akira Furutani, Kanagawa, JP;
Yutaka Tanaka, Tokyo, JP;
Toshiro Ohmura, Tokyo, JP;
Taiichiro Kurita, Kanagawa, JP;
Yoshimichi Ohtsuka, Kanagawa, JP;
Taiji Nishizawa, Tokyo, JP;
Yuichi Ninomiya, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
Image movement correction is provided in a field conversion television system by deriving simultaneously two fields of a selected number of lines from an original single field and vertically shifting one of the derived fields by 0.5 lines. A movement vector is determined for each field and movement correction is performed based on a current field and a preceding field, in the case of a moving object in the image. If no moving object is present linear approximation is employed to correct for motion caused by the field number conversion. Two memory systems are provided for the two simultaneous fields and also to selectively obtain specific horizontal lines of the current and preceding fields, relative to both simultaneous derived fields. Ultimate selection of a field for display is based upon the detected movement vector.