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:
Feb. 21, 1978
Filed:
Apr. 05, 1976
Applicant:
Inventors:
Assignee:
Nippon Electric Co., Ltd., Tokyo, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 13 ; 325 / ;
Abstract
Responsive to signal samples of a color television signal including a carrier chrominance signal, a predictive encoder produces quantized prediction error signals in compliance with a first transfer characteristic (1 - P.sub.1)(1 - P.sub.2), wherein minima which are substantially equal to zero are taken by the absolute value of 1 - P.sub.1 in the neighborhood of frame frequency and by the absolute value of 1 - P.sub.2 in the neighborhoods of zero frequency and subcarrier frequency. Responsive to the quantized prediction error signals, a predictive decoder produces reproduced samples in compliance with a second transfer characteristic of the inverse of the first transfer characteristic.