Video coder

Details Video coder Video coder

H - Electricity

04

N

350/33

H04N 7/26 (2006.01) G06T 9/00 (2006.01) H04N 7/30 (2006.01) H04N 7/32 (2006.01) H04N 7/36 (2006.01) H04N 7/46 (2006.01) H04N 7/60 (2006.01) H04N 7/62 (2006.01)

Patent

CA 1330122

ABSTRACT VIDEO CODER A coder assembles bursts of blocks of image data (eg transform coded coefficients) and associated overhead data into a sequence of data which are then transmitted. Both the transform coded coefficients and the overhead data are initially stored in separate FIFO memory stores. The blocks of transform coded coefficients have a 'last coefficient' flag accompanying the last coefficient, and the overhead information contains a unique word SWITCH, after the header information but before the 'end-of-block' flag. The 'last coefficient' flag and the SWITCH word are recognized by a toggle controller which controls the reading of the stores so that the coefficient data and overhead data are selectively passed to a buffer in a desired sequence. The buffer is followed by a variable length coder which supplies the output of the coder at a constant bit rate. Provision is made to calculate the quantity of output data represented at any time by the contents of the buffer and the result is used to control the rate of generation of image data.

578355

Affiliated with

Also associated with

Rating

Video coder 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 coder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video coder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1328370