Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1985-04-26
1986-11-04
George, Keith E.
Facsimile and static presentation processing
Static presentation processing
Attribute control
370 4, H04N 722
Patent
active
046212825
ABSTRACT:
Stereo audio signals are transmitted over optical fibres in a cable TV system in which stereo radio signals are received and demodulated to produce respective stereo multiplex signals. These stereo multiplex signals are then sampled, digitized and combined to produce a digital multiplex. The digital multiplex is carried over an optical fibre by first modulating the frequency of a video sub-carrier which in turn modulates the intensity of light emitted by a light source. At a switching point stereo multiplex signals are regenerated which modulate FM carriers having substantially the same frequency as the original radio signals.
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patent: 4513315 (1985-04-01), Dekker et al.
Mesiya et al., "Mini-Hub Addressable Distribution System for Hi-Rise Application", Phoenix Conference on Computers and Communications, Phoenix, AZ, USA (May 9-12, 1982), pp. 346-351.
W. K. Ritchie, "Multi-Service Cable Television Distribution Systems", British Telecommunications Engineering, vol. 1, Jan. 1983, pp. 205-210.
"Transmission of Wideband Signals on Optical Fibres" by W. Roker, 13th International TV Symposium, Montreux, Symposium Record CATV Sessions, May 28-Jun. 2, 1983, pp. 316-324.
"Initial Experience with the Milton Keynes Optical Fiber Cable TV Trial" by Fox et al., IEEE Transactions on Communications, vol. COM-30, No. 9, Sep. 1982, pp. 2155-2162.
"A Digital Television Fibre-Optic Trunking System" by W. W. Cotten, International Conference on Communications, vol. 2, IEEE catalogue No. 78CH1350-8 CSCB, Toronto, 1978, pp. 21.2.1-21.2.4.
British Telecommunications PLC
George Keith E.
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