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, 2000
Filed:
Jan. 10, 1995
Applicant:
Inventors:
Robert Norman Hurst, Jr, Hopewell, NJ (US);
Scott David Casavant, East Windsor, NJ (US);
Paul Harquail Meehan, Plainsboro, NJ (US);
Assignee:
Thomson Licensing S.A., Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348415 ; 348409 ; 348623 ;
Abstract
Noise reduction circuitry, in a video signal compression apparatus of the predictive DPCM compression type includes a simple nonlinear processing element within the DPCM loop to eliminate residues between predicted and real image signals, which are smaller than a predetermined value. Elimination of such residues dramatically reduces the amount of compressed data generated for signals including even modest amounts of noise.