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:
Nov. 21, 2006
Filed:
Jul. 22, 2002
Naoki Ozawa, Akishima, Tokyo, JP;
Naoki Ozawa, Akishima, Tokyo, JP;
Other;
Abstract
A method for producing interpolated signal values between sampled signal values in a sampled image signal produced by a checkerboard sampling pattern is accomplished by extracting a block of 2N-by-2N signal values that correspond to a block of sampling locations of the checkerboard sampling pattern, providing a set of frequency coefficients by a discrete cosine transform with the block of 2N-by-2N signal values, and providing at least a interpolated signal value that corresponds to the interpolation location by an inverse discrete cosine transform with the set of frequency coefficients. Here, a block of 2N-by-2N signal values is extracted so that sampled signal values exist in all the pixel locations of the block.