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:
Oct. 11, 2011
Filed:
May. 25, 2007
Gary Mcgillvray, Glasgow, GB;
David Storrar, Falkirk, GB;
Ewen Brown, Edinburgh, GB;
Ed Duncan, Lothian, GB;
Gary McGillvray, Glasgow, GB;
David Storrar, Falkirk, GB;
Ewen Brown, Edinburgh, GB;
Ed Duncan, Lothian, GB;
STMicroelectronics (Research & Development) Limited, Marlow-Buckinghamshire, GB;
Abstract
A digital filtering algorithm preprocesses couplet defects prior to their being operated on by a main filtering algorithm that focuses on singlet defects. The preprocessing involves the replacement of one of the defective pixel values in the couplet with a pixel value that is known to be non-defective. In preferred embodiments, the selection of the pixel value in the couplet to be replaced is customized depending on the direction of scanning of the pixel array, and can take into account edge effects of border pixels.