Television – Bandwidth reduction system – Data rate reduction
Patent
1998-12-31
2000-02-15
Le, Vu
Television
Bandwidth reduction system
Data rate reduction
348413, 348402, 348407, 382236, 386111, H04N 732
Patent
active
060258810
ABSTRACT:
A video coding/decoding apparatus comprises a prediction circuit that divides an input video signal into large regions and small regions in a hierarchical fashion and produces a prediction signal by performing prediction region by region, a subtracter for generating a prediction error signal for a prediction signal at the lowest level, a DCT circuit for coding a prediction error signal, a quantization circuit and a variable-length encoder, a variable-length encoder for coding the prediction mode and motion vector information obtained at each level from the prediction circuit, and a multiplexer for multiplexing the code strings obtained from the variable-length encoder and dividing them into the upper-layer and lower-layer code strings to output the code strings obtained at the variable-length encoder particularly as upper-layer code strings.
REFERENCES:
patent: 4821119 (1989-04-01), Gharavi
patent: 5068724 (1991-11-01), Krause et al.
patent: 5351095 (1994-09-01), Kerdranvat
patent: 5386234 (1995-01-01), Veltman et al.
patent: 5475435 (1995-12-01), Yonemitsu et al.
patent: 5608458 (1997-03-01), Chen et al.
patent: 5680174 (1997-10-01), Sugiyama
patent: 5715005 (1998-02-01), Masaki
patent: 5731840 (1998-03-01), Kikuchi et al.
patent: 5748787 (1998-05-01), Sugiyama
patent: 5777678 (1998-07-01), Ogata et al.
Chujoh Takeshi
Dachiku Kenshi
Ida Takashi
Kikuchi Yoshihiro
Watanabe Toshiaki
Kabushiki Kaisha Toshiba
Le Vu
LandOfFree
Video decoder and decoding method which decodes a code string ha does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video decoder and decoding method which decodes a code string ha, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video decoder and decoding method which decodes a code string ha will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1909881