Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-05-24
2005-05-24
Wong, Allen (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240000, C375S240120, C375S240160
Reexamination Certificate
active
06898247
ABSTRACT:
A first encoding section encodes an original picture S(1) and outputs it to a communication line of a first channel. The encoded image data is decoded in a first decoding section. This decoded data C(1) is input to a first compensation section. The first compensation section uses the original picture S(1) and the decoded data C(1) as the input, and performs calculation of the following expression (1) to thereby generate a first compensated original picture S(2):S(i+1)=(S(1)×i-∑k=1iC(k))/(N-i)+S(1)(1)wherein i=2 to N, and N denotes the total number of channels in image encoding.The first compensated original picture S(2) is encoded in a second encoding section and output from a communication line of a second channel. Thereafter, similar operation is performed for the total number of channels N. According to this invention, there can be provided an apparatus for dividing, compressing and transmitting video data that can sufficiently improve the encoding efficiency, without requiring preferential transmission of the basic data.
REFERENCES:
patent: 4903317 (1990-02-01), Nishihara et al.
patent: 6480541 (2002-11-01), Girod et al.
Sakazawa Shigeyuki
Takishima Yasuhiro
Wada Masahiro
Yamashita Tetsuji
KDDI Corporation
Westerman Hattori Daniels & Adrian LLP
Wong Allen
LandOfFree
Apparatus for dividing, compressing and transmitting video data does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for dividing, compressing and transmitting video data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for dividing, compressing and transmitting video data will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3456084