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:
Nov. 15, 1988
Filed:
Jan. 28, 1986
Applicant:
Inventors:
Shinji Badono, Amagasaki, JP;
Toshimasa Tomoda, Amagasaki, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; G09G / ;
U.S. Cl.
CPC ...
364518 ; 358166 ; 358167 ; 358280 ; 358111 ; 382 54 ; 340728 ;
Abstract
A loop is constructed in which an output of a two-dimensional integrator is fed back through an exponential function unit for each pixel of a picture signal, a difference between the output and an input picture signal of the corresponding pixel of a next frame is taken and the difference is input to the corresponding element of the two-dimensional integrator, whereby relative standard deviations of quantum noise of an output picture are made constant at all positions of a screen.