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:
Apr. 14, 1987
Filed:
Mar. 28, 1983
Applicant:
Inventors:
Jack Schwartz, Arlington, MA (US);
Tai T Wu, Arlington, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 37 ; 358166 ; 358 / ;
Abstract
A method and apparatus for defining a plurality of subcategories of the information content of the input to a reproduction system and generating a set of signals corresponding to each such subcategory for the system output and an idealized output. The sets of signals are analyzed to derive a third set of signals which are used to improve a selected aspect or characteristic of rendition fidelity of the reproduction system output. While the invention is described in the context of video systems the principles disclosed are equally applicable to photography, optical scanners and audio systems as well as other multi-channel reproducing systems.