Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-07-05
2005-07-05
Kelley, Chris (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240120, C375S240130
Reexamination Certificate
active
06914939
ABSTRACT:
A frequency domain data management technique for producing pseudo-constant bits per picture compressed video bit-streams in a low delay digital encoding environment is presented. This technique forms a hierarchy among the localized samples of the picture in terms of frequency importance and the picture difficulty after a shot-change is detected. After a shot change, the data management technique implements a series of tasks composed of picture difficulty evaluation, frequency classification, frequency constraining, and zero bytes generation to achieve a pre-determined average picture bits. Further, the low delay encoder uses a unique updating mechanism to encode certain regions of the pictures in intra mode and ensures that the whole picture is updated after a pre-selected number of pictures. The updating method disseminates compression artifacts throughout the video stream by changing the orientation of the intra-coded regions for every picture and scatters intra-picture compression artifacts by spatially decimating the aforementioned regions at different rates.
REFERENCES:
patent: 5576767 (1996-11-01), Lee et al.
patent: 5592226 (1997-01-01), Lee et al.
patent: 5652629 (1997-07-01), Gonzales et al.
patent: 5760836 (1998-06-01), Greenfield et al.
patent: 5793895 (1998-08-01), Chang et al.
patent: 5835147 (1998-11-01), Florentin et al.
patent: 6008847 (1999-12-01), Bauchspies
patent: 6008848 (1999-12-01), Tiwari et al.
patent: 6125147 (2000-09-01), Florencio et al.
patent: 6466625 (2002-10-01), Kobayashi et al.
patent: 6563549 (2003-05-01), Sethuraman
patent: 0 833 517 (1998-04-01), None
“DCT Interpolation for Motion Video”, disclosed anonymously 322103, reproduced from Research Disclosure, Feb. 1991, No. 322, copyright Kenneth Mason Publications, Ltd., England.
Boice Charles E.
Cascarino Brian J.
Mohsenian Nader
Heslin Rothenberg Farley & & Mesiti P.C.
Kelley Chris
Parsons Charles
Radigan, Esq. Kevin P.
Steinberg, Esq. William H.
LandOfFree
Method and apparatus for producing pseudo-constant bits per... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for producing pseudo-constant bits per..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for producing pseudo-constant bits per... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3372763