发明名称 |
BIDIRECTIONAL CABLE NETWORK SIGNAL DISTRIBUTION SYSTEM |
摘要 |
<p>A bidirectional cable network having a signal distribution system that prevents undesirable energy in the bidirectional cable network's return path from adversely effecting the entire network. The signal distribution system a first signal transmitted in a forward path direction over the bidirectional communication path from a headend to a plurality of remote points. Signals transmitted in a return path direction are time division multiplexed on a series of cyclically reoccurring time slots where at least one of the cyclically reoccurring time slots is assigned to each of the plurality of remote points . At least one primary is effective during each occurrence of the cyclically reoccurring time slots for isolating all of the plurality of remote points from accessing the network to transmit a signal in the second direction except fo r one of the plurality of remote points which is assigned the cyclically reoccurring time slot that is presently providing a path to transmit in the second direction from the remote point to the headend. In one embodiment each return gate services a plurality of remote points within the return gate's distribution branch. In a second embodiment each remote point has a dedicated return gate.</p> |
申请公布号 |
CA2184527(C) |
申请公布日期 |
2001.07.24 |
申请号 |
CA19962184527 |
申请日期 |
1996.08.30 |
申请人 |
CABLE TELEVISION LABORATORIES, INC. |
发明人 |
WILLIAMS, THOMAS H. |
分类号 |
H04L12/28;H04L12/44;H04N7/173;(IPC1-7):H04N7/173;H04N7/10 |
主分类号 |
H04L12/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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