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. 06, 2004
Filed:
Jul. 29, 1997
Kinya Osa, Chiyoda-ku, JP;
United Module Corporation, Los Altos, CA (US);
Abstract
When pixel signals included in pixel blocks forming an image are supplied, a detector detects the difference between pixel signal levels in the vicinity of block boundary of the pixel blocks. Then, a comparator compares the difference with a threshold value. An adder adds additional values to the pixel signal levels in the vicinity of block boundary in accordance with the comparison results. A pseudo random number is generated, to select a value pattern including the additional values from additional value patterns based on the random number. The above-described process can disturb the regularity of differentials in the pixel block boundary, thus positively facilitating to eliminate block deformation possibly arising in between pixel blocks.