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:
Apr. 18, 2006
Filed:
Sep. 10, 2001
Tsuyoshi Maeda, Osaka, JP;
Yoshio Seki, Osaka, JP;
Tsuyoshi Maeda, Osaka, JP;
Yoshio Seki, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A noise reduction apparatus in accordance with the present invention is configured to reduce mosquito noise while retaining edges by calculating the maximum value Y of the difference values of adjacent pixels in an area of M×N around a notice pixel by using a difference value calculator and a maximum value calculator, by controlling a pixel replacement device depending on Y and the difference value X from the notice pixel in the area of J×K narrower than the area of M×N, and by carrying out more intense smoothing depending on the magnitude of X with respect to Y, that is, when X is smaller than Y.