Cable television return link system with high data-rate side-band communication channels
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United States of America Patent
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May 22, 2007
Grant Date -
Jun 12, 2003
app pub date -
Oct 30, 2002
filing date -
Dec 13, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A Cable Television (CATV) digital return link system that provides dedicated, high-speed, full-duplex and point-to-point connections between users and the head end system is disclosed. The CATV digital return link system includes return path transmitters, intermediate hubs and a head end hub coupled to each other via a network of fiber optics cables. The return path transmitters are each coupled to a relatively large number of users via a local CATV-subtree. Signals from cable modems are transmitted via the local CATV-subtree to the return path transmitters for transmission to the head end. A number of users are individually and directly connected to the return path transmitters. Data from these directly connected users is transmitted to the head end via the network of fiber optics cables in conjunction with the RF data from the subtree. Likewise, data from the head end to these directly connected users is transmitted in the forward path direction using the digital return link system.
First Claim
Family
International Classification(s)
Cited Art Landscape
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