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. 16, 2001
Filed:
Feb. 06, 1998
Hiroshi Kobayashi, Kanagawa, JP;
Kyoko Fukuda, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A picture signal processing method and apparatus in which the block distortion or the mosquito noise generated on picture compression/expansion using block encoding or the like is removed and picture quality correction such as contour enhancement is carried out effectively. Compression-encoded picture signals are expanded and decoded by a MPEG decoder,and the decoded picture signals are sent to a noise reducing circuit,. The noise reducing circuit,reduces the noise by block distortion reduction or by field recursive type noise reduction. The resulting noise-reduced or noise-freed picture signals are sent to a picture quality correction circuit,, which then performs picture quality correction, such as contour enhancement.