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. 07, 2014
Filed:
Feb. 08, 2013
Omnivision Technologies, Inc., Santa Clara, CA (US);
Robert Johansson, Oslo, NO;
Tore Martinussen, Strommen, NO;
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
A novel image sensor includes a pixel array, a row control circuit, a test signal injection circuit, a sampling circuit, an image processing circuit, a comparison circuit, and a control circuit. In a particular embodiment, the test signal injection circuit injects test signals into the pixel array, the sampling circuit acquires pixel data from the pixel array, and the comparison circuit compares the pixel data with the test signals. If the pixel data does not correspond to the test signals, the comparison circuit outputs an error signal. Additional comparison circuits are provided to detect defects in the control circuitry of an image sensor.