Broad band switching system

Details Broad band switching system Broad band switching system

1980-11-05

1983-05-03

Britton, Howard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358181, 455615, 455617, H04N 718, H04B 900

Patent

active

043822665

ABSTRACT:
A broad band switching system for television signals and, under certain conditions, for radio signals, provides that the signals which are phase modulated with the TV programs are switchable by way of a broad band switching network and can then be transmitted in frequency division multiplex to the subscribers by way of light wave guides. In such a system, each television program source is supplied in a plurality of frequency channels to a corresponding plurality of frequency channel-specific switching levels for the purpose of television program switching, so that each subscriber has simultaneous access in the plurality of frequency channels to a corresponding plurality of programs. Additional television program sources, as well as audio program sources, can be constantly connected to the subscribers by way of additional frequency channels.

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patent: 4064460 (1977-12-01), Gargini
patent: 4274112 (1981-06-01), Leysieffer
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Beakley, G. W., "Television to Small Earth Stations", IEEE Trans. on Broadcasting, vol. BC-22, No. 3. Sep. 1976, pp. 96-100.
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