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. 20, 1993
Filed:
Nov. 19, 1991
Applicant:
Inventors:
Paul D Israelsen, North Logan, UT (US);
Keith Lucas, Richmond Hill, CA;
Assignee:
Scientific-Atlanta, Inc., Atlanta, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
380 14 ; 380 10 ; 358133 ; 341200 ;
Abstract
A vector quantization me employs mirrored input vectors to increase the reproduction quality of transmitted vector quantized data. A codevector is selected from a vector quantization codebook for each possible orientation of an input vector. The codevector having the smallest distortion relative to the input vector is selected for transmission. An identification code identifying the selected orientation is also transmitted.