Method of adaptively multiplexing a plurality of video channel d

Details Method of adaptively multiplexing a plurality of video channel d Method of adaptively multiplexing a plurality of video channel d

1994-11-04

1996-08-27

Harvey, David E.

Television

Bandwidth reduction system

Plural video programs in single channel

348385, 348419, 348423, H04N 708

Patent

active

055505899

ABSTRACT:
A method of adaptively multiplexing a plurality of video channel data is disclosed. A multiplexed data includes a plurality of frames each of which contains a plurality of sub-frames. The video channel data are adaptively allocated to the sub-frames. A memory occupancy value of a buffer, which is provided in each of a plurality of video channels, is determined. The buffer is arranged to receive the corresponding video information. A plurality of control signals are produced each of which indicates the memory occupancy value of the corresponding buffer. Following this, a look-up table is accessed which includes a plurality of video channel assignment data for assigning the video channel data to The sub-frames. Thus, one of the channel data assignment data is derived from the look-up table. The video channel data are then multiplexed using one of said channel data assignment data derived from the look-up table.

REFERENCES:
patent: 4215564 (1980-07-01), Iijima
Kaneko et al., "Digital Transmission of Broadcast Television with Reduced Bit Rate" NTC '77 Conference Record Los Angeles, CA., USA pp. 41:4-1 to 41:4-6 Dec. 1977.
T. Koga et al, "Statistical Performance Analysis . . . for Broadcase Television Signals", IEEE Transactions on Communications, vol. COM-29, No. 12, Dec. 1981, pp. 1868-1876.

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