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:
Jun. 29, 2010
Filed:
Mar. 31, 2006
Applicants:
Ian Moody, Chelmsford, GB;
Kevin Hadfield, Chelmsford, GB;
Inventors:
Ian Moody, Chelmsford, GB;
Kevin Hadfield, Chelmsford, GB;
Assignee:
E2V Technologies (UK) Limited, Essex, GB;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/46 (2006.01); G06K 9/66 (2006.01); G06K 9/68 (2006.01); H04N 9/64 (2006.01);
U.S. Cl.
CPC ...
Abstract
A photoelectric sensor array is labelled by accumulating charge, preferably charge from a dark current, in at least a portion of the sensor array and reading out the accumulated charge to form an image to determine locations of atypical pixels in the portion of the sensor array. A signature of the sensor array is generated from the locations of atypical pixels and stored. The array is subsequently identified by re-accumulating charge in the portion of the array to form a signature based on the atypical pixels for comparison with the stored signature.