Television – Two-way video and voice communication – User positioning
Patent
1998-08-14
1999-11-23
Faile, Andrew I.
Television
Two-way video and voice communication
User positioning
455 51, H04N 7173
Patent
active
059909293
ABSTRACT:
A return amplifier for two-way coaxial cable systems, of the type having a distribution centre distributing first feed signals, and a separate second signal delivery system having facilities for distributing second feed signals onto said cable system and reception facilities for receiving return signals from said cable system, the system having feeder amplifiers for receiving first and second feed signals, and having return amplifiers having a standard amplifier assembly having a plurality of electronic circuits, and in which first and second said electronic circuits are settable to provide varying return amplifier specifications, and each of said first and second circuits having receptacles for receiving plug in attenuator components for varying the specifications of the return amplifier, the plurality of plug in attenuator components each being of identical design and being adapted to interfit with either the first or second electronic circuit, and the attenuator components having a range of varying performance characteristics so that an attenuator component can be selected and plugged in to respective ones of the first and second electronic circuits to produce the performance specifications desired for the return amplifier at a predetermined location in the cable system, and to a method of operating a return amplifier of the type described.
Faile Andrew I.
Huang Sam
LandOfFree
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