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:
Sep. 05, 1995
Filed:
Nov. 08, 1993
Applicant:
Inventors:
Hans-Juergen Desor, Denzlingen, DE;
Heinrich Koehne, Voerstetten, DE;
Assignee:
Deutsche ITT Industries, GmbH, Freiburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348618 ; 348622 ;
Abstract
An apparatus and method for generating a modified video signal consisting of a correction signal and a video input signal. The correction signal is derived from a digitized video input signal by at least a frequency-band limiter and an amplitude limiter. The video input signal is delayed by the processing time of the correction signal before the two signals are combined. To avoid unwanted harmonics the amplitude limiter uses a transfer function which can be exactly described by a rational integral function of the nth degree,