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:
Jan. 07, 2003
Filed:
Feb. 05, 1999
Adam A. Goldstein, Santa Clara, CA (US);
Raytheon Company, Lexington, MA (US);
Abstract
Systems and methods that compute and apply a real-time transformation between digital input and output signals to achieve a specified output histogram. The systems and methods implement a predetermined (piecewise-linear) transfer function, coarse output histogram collection, and a closed-loop algorithm to produce a target (or specified) coarse histogram. Compact low-power systems contain a controller to implement the closed-loop algorithm, and a signal processor to implement the transfer function and coarse histogram collection. The use of a piecewise-linear transfer function in conjunction with coarse histogram collection, where the number of bins collected is equal to the number of piecewise-linear segments, results in a significant reduction in computational load and communication bandwidth required by the systems and methods.
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