Electrical computers and digital processing systems: multicomput – Remote data accessing
Patent
1995-12-14
2000-03-28
Miller, John W.
Electrical computers and digital processing systems: multicomput
Remote data accessing
348 12, 348 13, 348386, 348387, 348419, 348423, 370538, 455 51, H04N 714, H04N 712, H04H 102, H04J 302
Patent
active
060443960
ABSTRACT:
A system for utilizing the available bit rate in a constrained variable bit rate channel is described. The system receives one or more encoded information streams, each having a variable bit rate. Rate control circuitry controls the rate of transmission of the encoded information streams so that the variable bit rate of the streams is transformed into a constrained variable bit rate, in which the variable bit rate is limited to a predetermined maximum value. A multiplexer multiplexes the encoded information streams for transmission over a channel. The channel may comprise a 6 MHz television channel. The multiplexer also multiplexes the encoded information streams with a secondary information stream for transmission over the channel. For purposes of multiplexer selection of information streams, the secondary information stream is assigned a lower priority than the encoded information streams. The encoded information streams may, for example, carry video data, whereas the secondary information stream may, for example, carry application data. The multiplexer may select from among the encoded information streams according to a round-robin scheme. The rate of the secondary information stream depends upon the rates of the encoded information streams. The rate of the secondary information stream may be controlled by a transmission control protocol, where the rate is adjusted by adjusting a transmit window of the protocol.
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Crouch Robert G.
Miller John W.
Time Warner Cable, a division of Time Warner Entertainment Compa
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