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:
Jul. 03, 2001
Filed:
Feb. 17, 1998
Toru Eto, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
In an image encoder and an image decoder of an image transmission system, enabling the deterioration of decoded images in image quality to be avoided, the color frame information D,in separating a predetermined video signal into a luminance component and a color component (chroma component) is extracted prior to the compressive encoding processing of a video signal S,, added after the compressive encoding processing and delivered to transmission means,A, and moreover the color frame information is extracted prior to the decoding processing of the compressed video signal S,obtained from the transmission means,A and is added after the decoding processing, thereby enabling data on color frame information D,to be added to the decoded video signal S,after the decoding processing as they remain invariant free from deformation (loss) and delivered to the transmission means. Thus, a playback video signal (composite video signal) S,can be obtained using the color frame information in the decoded video signal S,and therefore the deterioration of playback images can be prevented.