Transmitting system having transmitting paths with low transmitt

Details Transmitting system having transmitting paths with low transmitt Transmitting system having transmitting paths with low transmitt

1993-05-28

1996-01-09

Chin, Wellington

Multiplex communications

Wide area network

Packet switching

370112, 348387, 375257, H04N 712

Patent

active

054835348

ABSTRACT:
In a transmitting system, a first multiplexer multiplexes first through M-th encoded digital video signals from encoders to produce a primary multiplex signal comprising cells which have channel codes, address codes, and cell data, where M represents an integer greater than two. Each of the cell data represents a part of one of the encoded digital video signals. Each of the channel codes indicates one of the encoded digital video signals. Each of the address codes indicates a position of one of the cell datum. A first demultiplexer demultiplexes the primary multiplex signal to produce first through N-th primary demultiplex signals, where N represents an integer which is less than M and greater than one. A second multiplexer multiplexes the first through the N-th primary demultiplex signals from the first demultiplexer through first through N-th transmitting paths to produce a secondary multiplex signal. A second demultiplexer demultiplexes the secondary multiplex signal datum in response to the channel codes and the address codes to produce the first through the M-th encoded digital video signals.

REFERENCES:
patent: 4811341 (1989-03-01), Fujimoto et al.
patent: 5065396 (1991-11-01), Castellano et al.
patent: 5091907 (1992-02-01), Wettengel
patent: 5202886 (1993-04-01), Rossi et al.
T. Koga et al., "Statistical Performance Analysis . . . Encoder for Broadcast Television Signals", IEEE Transactions on Communications, vol. COM-29, No. 12, Dec. 1981, pp. 1868-1876.

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