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:
Jun. 19, 2001
Filed:
Mar. 05, 1998
Eiji Ogura, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
The invention relates to a device and method for image coding. A reference frame memory for storing image data of a reference frame, a search memory for storing image data of a search frame, a motion detection means for reading image data from the reference frame memory and the search memory and calculating it to detect a motion vector, and a judgement means for generating a motion vector distribution from the motion vector detected by the motion detection means on a search range of the search frame M fields or M frame (M is an integer of one or larger) apart from the reference frame and deciding a search position between images N fields or N frames (N is an integer larger than M) part based on the motion vector distribution are provided, and the motion detection means performs motion detection at the search position decided by the judgement means. The search range can be thereby enlarged without increment of the search block transfer rate when an image is coded.