MPEG packet header compression for television modems

Details MPEG packet header compression for television modems MPEG packet header compression for television modems

1996-07-31

1998-11-10

Asta, Frank J.

Coded data generation or conversion

Digital code to digital code converters

Tree structure

395888, 341 60, H01J 1300

Patent

active

058357300

ABSTRACT:
A method and apparatus are provided for receiving a packet stream having fixed length packets. Data carried in the packet stream is selectively processed for output to a computer. A packet identifier filter selects particular packets from the recovered packet stream. A computer disk controller receives the packets selected by the filter and manages the transfer of packet data from the packets to and from a buffer. A data bus is coupled to the disk controller for communicating the packet data from the buffer to the computer. A data compression stage prior to the disk controller compresses packets from the recovered packet stream in order to provide a gap between data carried by successive packets to be provided by the disk controller. In this manner, a low cost disk controller chip can be used to control the buffering of data in a cable or satellite television modem that provides, e.g., Internet access.

REFERENCES:
patent: 5045993 (1991-09-01), Murakami et al.
patent: 5191326 (1993-03-01), Montgomery
patent: 5271010 (1993-12-01), Miyake et al.
patent: 5347304 (1994-09-01), Moura et al.
patent: 5576765 (1996-11-01), Cheney et al.
patent: 5579183 (1996-11-01), Van Gestel et al.

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