Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1994-12-22
1996-07-30
Boudreau, Leo
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359124, 348 7, 348 10, 348 12, H04J 1402, H04N 710
Patent
active
055417574
ABSTRACT:
Video signals for broadcasting service with a plurality of channels are frequency-multiplexed into a predetermined broadcasting band, and converted into optical signals by an optical transmitter. At the same time, video signals for VOD service requested by a plurality of subscribers are selected, taken out, frequency-multiplexed within the VOD band, and converted into optical signals by an optical modulator. These two types of optical signals are transmitted to subscribers through the optical network. In each subscriber's household, either broadcasting signals or video signals for VOD service are reproduced and desired programs are selected in the tuners.
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patent: 5361394 (1994-11-01), Shigihara
patent: 5418559 (1995-05-01), Blahut
patent: 5421031 (1995-05-01), De Bey
"Erbium-Doped Fiber Amlifier for Video Distribution Networks", by E. Yoneda et al., IEEE Journal on Selected Areas in Communications, vol. 8, No. 7, Sept. 1990.
"AM Optical Bridger Networks for CATV", Donald Raskin et al., 1991 NCTA Technical Papers-13.
"Fiber to Feeder Design Study", J. Mattson, 1991 NCTA Technical Papers-309.
Fujito Katsuyuki
Fuse Masaru
Nakata Hiroaki
Boudreau Leo
Matsushita Electric - Industrial Co., Ltd.
Mehta Bhavesh
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