Method and apparatus for broadband transmission from a central o

Details Method and apparatus for broadband transmission from a central o Method and apparatus for broadband transmission from a central o

1993-09-17

1995-02-07

Kuntz, Curtis

Television

Special applications

Manufacturing

348 7, 455 31, 455 41, 455 42, H04M 1100

Patent

active

053879279

ABSTRACT:
A method of transmitting broadband video services from a broadband digital signal source which includes forming the digital signal from said source into a plurality of channels of digital signals and modulating a plurality of carrier signals with respective channels of the digital signals. The resultant modulated channels are multiplexed to form a combined signal which is then used to modulate light from a laser light source. The modulated light signal is transmitted along a light fibre to a local distribution box where it is converted to electrical signals and broadcast to a number of subscriber set top terminals, Each set top terminal detects the modulated signal of a channel pre-assigned to that set top terminal. User control information is also received by that set top terminal and transmitted to the central office.

REFERENCES:
patent: 5136411 (1992-08-01), Park et al.
patent: 5153763 (1992-10-01), Pidgeon
patent: 5245420 (1993-09-01), Harney et al.

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