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. 12, 2004
Filed:
Jun. 12, 2000
Yutaka Hirono, San Jose, CA (US);
Pulnix America, Inc., Sunnyvale, CA (US);
Abstract
A color-recognition camera comprises a red-green-blue CCD-imaging device that provides an analog RGB-video signal. A set of three analog-to-digital converters convert the analog RGB-video signal into a digital RGB-video signal. A digital comparator tests the digital RGB-video signal pixel-by-pixel for a match against a color setpoint. If a match occurs, a pixel with a particular color represented by the color setpoint has been recognized and a “hit” is output. A pixel address counter provides a pixel address output each time a “hit” is registered. The number of hits per video frame are accumulated, and a color-match area magnitude value is output for each frame. Alternatively, neural networks are used to indicate hits when a pixel in the video image comes close enough to the color setpoint value. Just how close can be “learned” by the neural network.