Method for realizing multi-picture

Details Method for realizing multi-picture Method for realizing multi-picture

2008-07-01

2008-07-01

Woo, Stella L (Department: 2614)

Television

Two-way video and voice communication

Conferencing

C348S014080

Reexamination Certificate

active

07394481

ABSTRACT:
A method for realizing multi-picture, including: A. Multipoint Control Unit (MCU) creates an indicator containing multi-picture information for each of the terminals and sends the indicators to the terminals; B. each terminal receives the indicator, encodes a source picture depending on the information in the multi-picture information indicator, and inserts said multi-picture information indicator into a sub-bitstream and transmits the sub-bitstream to the MCU; C. when receiving the sub-bitstreams from the respective terminals, the MCU combines the sub-bitstreams into a composite bitstream and sends the composite bitstream to a display terminal; D. the display terminal receives the composite bitstream, extracts the sub-bitstreams from the composite bitstream, and decodes the sub-bitstreams depending on the multi-picture information indicators of the sub-bitstreams and combines the decoded sub-pictures into a multi-picture output. The present invention reduces the cost and greatly enhances multi-picture transmission and combination capability thus to implement transmission and combination of sub-pictures.

REFERENCES:
patent: 5453780 (1995-09-01), Chen et al.
patent: 6456335 (2002-09-01), Miura et al.
patent: 6956600 (2005-10-01), Gaylord
patent: 1422079 (2003-06-01), None
patent: 10-164539 (1998-06-01), None

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