EP0386981A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Coaxial networks
Assignee: Central Research Laboratories Ltd
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Filing: 1990-03-05
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Granted: —
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Expires: 2010-03-05
Abstract
Abstract A coaxial network suitable for the distribution of video signals between a number of video cameras and signal monitors is described. The network includes a central symmetrical star splitter 1, each port of the central splitter being either terminated or connected to a respective asymmetrical splitter 7. A number of sockets are attached to each asymmetrical splitter 7. The network is such that the performance of each asymmetrical splitter is insensitive to the number of sockets attached to the asymmetrical splitter which are being used, terminated, or left open circuit.
Inventors
- 👤 Peter Barnes
- 👤 Arthur Soutar Harvey
- 👤 Timothy Andrew James
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 19:50
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
69 words
A coaxial network including a central symmetrical star splitter comprising a plurality of ports, and at least one asymmetrical splitter, each port being either terminated or connected to a respective asymmetrical splitter, each asymmetrical splitter having a plurality of ports for connection to a plurality of signal sockets, so as to enable the interchange of signals between a number of electrical appliances connected to respective ones of the sockets.
Claim 2
Dependent Claim
69 words
A coaxial network including a central symmetrical star splitter comprising a plurality of ports, and at least one asymmetrical splitter, each port being either terminated or connected to a respective asymmetrical splitter, each asymmetrical splitter having a plurality of ports for connection to a plurality of signal sockets, so as to enable the interchange of signals between a number of electrical appliances connected to respective ones of the sockets.
Claim 3
Dependent Claim
16 words
A coaxial network according to Claim 1 in which the central splitter comprises a resistive network.
Claim 4
Dependent Claim
19 words
A coaxial network according to either of the preceding claims in which each asymmetrical splitter comprises a resistive network.
Claim 5
Dependent Claim
30 words
A coaxial network according to anyone of the preceding claims including a control means for allocating channels of different frequencies to various ones of the appliances connected to the network.
Claim 6
Dependent Claim
25 words
A coaxial network according to Claim 4 in which the control means is arranged to produce control signals at a frequency outside the frequency channels.
Claim 7
Dependent Claim
38 words
A coaxial network according to Claim 5 in which the control signals are of a lower frequency than the different frequencies, and including bypass means for avoiding attenuation of the control signals in the central and asymmetrical splitters.
References Cited (Backward Citations)
No citation records indexed.
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