Audio/video and data signal redistribution system
First Claim
1. A system for redistributing a plurality of audio/video and data signals over conductors, comprising a server, and a redistributor for receiving a plurality of input signals, comprising for each input signal, a demodulator for demodulating the signal, the server controlling an output channel selection of the input signal responsive to one or more control signals input into a communications interface, wherein the redistributor dynamically selects and allocates a redistribution frequency suitable for each output signal based on one or more of:
- attenuation due to interference from other sources, attenuation due to cable length, signal loss, signal-to-noise ratio, data density of the output signal and signal sharing with other output signals.
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Accused Products
Abstract
A system for redistributing a multiple input audio/video and data signals having a redistributing device equipped to receive signals in a multiple formats and redistribute a selected signal to a user'"'"'s premises over conductors, preferably existing twisted-pair telephone wire. The redistributing device is in interactive communication with a communications interface located in the user'"'"'s premises which receives user-input control signals and contains switching circuitry which routes the selected signal to the user'"'"'s premises where it is received by the receiving unit such as a television receiver. A single redistributing device services an entire multi-user network from a common distribution point, and services multiple users independently. The system of the invention does not interfere with normal use of the telephone network, so users can interactively access services provided by the system and use the telephone at the same time. In one preferred embodiment the system of the invention dynamically allocates frequencies and modulation techniques to various output signals, to maximize spectral efficiency and minimize interference and cross-talk.
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Citations
20 Claims
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1. A system for redistributing a plurality of audio/video and data signals over conductors, comprising
a server, and a redistributor for receiving a plurality of input signals, comprising for each input signal, a demodulator for demodulating the signal, the server controlling an output channel selection of the input signal responsive to one or more control signals input into a communications interface, wherein the redistributor dynamically selects and allocates a redistribution frequency suitable for each output signal based on one or more of: - attenuation due to interference from other sources, attenuation due to cable length, signal loss, signal-to-noise ratio, data density of the output signal and signal sharing with other output signals.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of redistributing a plurality of audio/video and data signals to a plurality of communications interfaces over conductors, comprising the steps of
(a) receiving a plurality of input signals at a signal redistributor, (b) demodulating each input signal, (c) processing each input signal to a format suitable for switching, (d) switching an output of the redistributor according to one or more control signals input into a communications interface, (e) selecting and allocating a redistribution frequency suitable for the output signal based on one or more of: - attenuation due to interference from other sources, attenuation due to cable length, signal loss, signal-to-noise ratio, data density of the output signal and signal sharing with other output signals, and
(f) routing the output of the redistributor to the communications interface for transmission to a receiving device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
- attenuation due to interference from other sources, attenuation due to cable length, signal loss, signal-to-noise ratio, data density of the output signal and signal sharing with other output signals, and
Specification