Cable-based interactive multimedia workstation network
First Claim
1. A communications network comprising a closed loop cable and a plurality of communications stations, each of said communications stations connected to said cable by means of an input line and an output line, for each of said communications stations at least one demodulator connected between said input line and said station and at least one modulator connected between said output line and said station, said network further comprising a signal splitter between said cable and said input line and a signal combiner between said output line and said cable and a computer connected to said modulator and demodulator for controlling signals applied to said cable.
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Accused Products
Abstract
An existing CATV co-axial cable system provides a two-way path between multimedia workstations and a control center and between multimedia workstations connected at nodes along the cable. Each node/workstation organization comprises at least one tuner/demodulator and a notch filter. The system of the present invention is suitable as a multimedia communications system for providing full motion picture transmission, high fidelity audio communications and data transmission, effectively multimedia communication in its true form.
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Citations
15 Claims
- 1. A communications network comprising a closed loop cable and a plurality of communications stations, each of said communications stations connected to said cable by means of an input line and an output line, for each of said communications stations at least one demodulator connected between said input line and said station and at least one modulator connected between said output line and said station, said network further comprising a signal splitter between said cable and said input line and a signal combiner between said output line and said cable and a computer connected to said modulator and demodulator for controlling signals applied to said cable.
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14. An analog arrangement for electronically linking in a closed loop a plurality of communication stations one of which stations is a control static said arrangement comprising interconnecting means for conducting electrical signals to said stations and a node at each of said stations comprising a signal splitter for applying a first component of a set of signals from said interconnecting means to said station;
- a notch filter for blocking selected frequency components from a second component of said set of said signals from said interconnecting means; and
a signal combiner for combining output signals from said station with output signals from said notch filter and for applying said combined output signals to said interconnecting means, wherein said interconnecting means comprises a closed loop television coaxial cable system. - View Dependent Claims (15)
- a notch filter for blocking selected frequency components from a second component of said set of said signals from said interconnecting means; and
Specification