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. 23, 2003
Filed:
Feb. 22, 2001
Applicant:
Inventors:
Michael James Knee, Petersfield, GB;
Bruce Fairbairn Devlin, Chiddingford, GB;
Nicholas Dominic Wells, Brighton, GB;
Assignee:
Snell & Wilcox Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 7/36 ;
U.S. Cl.
CPC ...
H04N 7/36 ;
Abstract
An MPEG-2 or other compressed video stream (CP) can be manipulated as separate information bus (IB) and coefficient (CP*) streams. The information bus stream (IB) contains motion vector information but also information derived from a previous decoding operation ( ) for use in a subsequent coding operation ( ). Processing in the coefficient domain enables bit rate conversion without decoding to the pixel level and also simplifies the combination of MPEG layers.