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:
May. 26, 2009
Filed:
Mar. 03, 2004
Makoto Kawakami, Osaka, JP;
Takahiro Iwasawa, Kyoto, JP;
Kazuyuki Inokuma, Kyoto, JP;
Keiichi Tsumura, Hyogo, JP;
Katsumi Tokuyama, Osaka, JP;
Toshiyuki Nakashima, Osaka, JP;
Makoto Kawakami, Osaka, JP;
Takahiro Iwasawa, Kyoto, JP;
Kazuyuki Inokuma, Kyoto, JP;
Keiichi Tsumura, Hyogo, JP;
Katsumi Tokuyama, Osaka, JP;
Toshiyuki Nakashima, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
From horizontal and vertical coordinate values HC and VC of a pixel, a distance operation unit calculates a distance value RV indicating the distance from an optical-axis position to the pixel. A correction-data operation unit receives the distance value RV, and calculates correction data CD for the pixel by referring to an approximation function indicating relation between distance values and correction data. The approximation function is divided into a plurality of segments, and in each segment represented by a quadratic function defined by a predetermined number of sample points.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile