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. 23, 2002
Filed:
Jan. 26, 1999
Yuichiro Yamaguchi, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A process of a pixel interpolation circuit is optimized for down-sizing of a circuit scale and improvement of process speed. The pixel interpolation method takes a pixel at a center of three row×three column image data as a target pixel subjecting interpolation process, and calculates color data of the target pixel and color data of pixels around the target pixel and adjacent thereto for outputting an interpolated color data for the target pixel. The pixel interpolation method includes a reading step of reading out image data of sequential first to third rows among image data of N rows×M columns written in a memory, per each column, wherein N and M are integer greater than and equal to three, and a color data determining step of determining the interpolated color data for the target pixel on the basis of a first color data as one of color data for three pixels of the column read out immediately before color data of the target pixel, second and third color data for two other pixels simultaneously read out with the target pixel, and a fourth color data as one of color data for three pixels of the columnw read out immediately after color data of the target pixel data.