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.:

US 9236943 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 12, 2016

Filed:

Aug. 13, 2013
Applicant:

The Institute of Optics and Electronics, the Chinese Academy of Sciences, Sichuan, CN;

Inventors:

Xiaoyu Ma, Sichuan, CN;

Changhui Rao, Sichuan, CN;

Kai Wei, Sichuan, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/118 (2013.01); H04B 10/69 (2013.01); H04N 5/359 (2011.01); G01S 3/784 (2006.01); H04B 10/071 (2013.01); H04B 10/079 (2013.01); G01J 1/42 (2006.01);
U.S. Cl.
CPC ...
H04B 10/118 (2013.01); G01S 3/784 (2013.01); H04B 10/071 (2013.01); H04B 10/079 (2013.01); H04B 10/697 (2013.01); H04N 5/359 (2013.01); G01J 1/4228 (2013.01);
Abstract

There is provided a method of eliminating an offset in a spot centroid due to crosstalk. A crosstalk matrix is used to characterize crosstalk characteristics of a multi-pixel spot-centroid detector. Left-multiplication of signals outputted from the multi-pixel spot-centroid detector, which are affected by the crosstalk, by an inverse matrix of the crosstalk matrix can result in a light-intensity-distribution signal with impacts of the crosstalk substantially removed. Based on this light-intensity-distribution signal, it is possible to derive the spot centroid, with the offset in the spot centroid due to the crosstalk substantially eliminated, resulting in an improved accuracy of the spot centroid detection, as compared with conventional methods.


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Ma, Xiaoyu. (2016). Method of eliminating offset in spot centroid due to crosstalk (U.S. Patent No. 9236943). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9236943

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