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:
Aug. 05, 2008
Filed:
Apr. 30, 2003
Glenn H. Chapman, Coquitlam, British Columbia, CA;
Yves Audet, Montreal, CA;
Israel Koren, Amherst, MA (US);
Zahava Koren, Amherst, MA (US);
Glenn H. Chapman, Coquitlam, British Columbia, CA;
Yves Audet, Montreal, CA;
Israel Koren, Amherst, MA (US);
Zahava Koren, Amherst, MA (US);
Other;
Abstract
An active pixel sensor imaging device comprises array of pixel cells, each pixel cell providing a pixel output signal to a signal output line associated therewith. Each pixel cell comprises: a photosensor having at least two independent portions, each independent portion having a sensor output; and, a separate readout circuit coupled to the sensor output of each independent portion. Each separate readout circuit has an output coupled to the signal output line and each separate readout circuit is capable of generating an output signal at the output. The outputs of the separate readout circuits for the pixel cell are connected such that the output signals are combined in an additive manner to produce the pixel output signal. Hardware and software correction methods are provided for the correction of defective pixels in monochromatic and color imaging systems.