H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/08 (2006.01) H04N 7/15 (2006.01) H04N 7/26 (2006.01) H04N 7/46 (2006.01) H04N 7/50 (2006.01)
Patent
CA 2140849
The present invention provides a novel video communication system incorporating multiple window display. According to the present invention, one or more video transmission nodes provide macroblocks of video data available in a plurality of resolution levels. The transmission node encodes the macroblocks and assigns macroblock identifiers (IDs) to each macroblock. A receiving node receives a plurality of video sequences from a plurality of transmission nodes through a communication network. The receiving node operating according to the present invention thereafter eliminates macroblocks of video data that will not be displayed, such as in the case of portions of video that are hidden or overlapped. A macroblock translator also transforms the macroblock ID to a new macroblock ID which reflects the macroblock's position on the display screen as dictated by the user's window configuration. A decoder thereafter decompresses the video data one macroblock at a time, and provides the decompressed macroblock to a frame buffer. The frame buffer provides the window configured video data to a display.
Cash Glenn Lawrence
Civanlar Mehmet Reha
Gaglianello Robert D.
Swicker Donald Bruce
American Telephone And Telegraph Company
Kirby Eades Gale Baker
LandOfFree
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