Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1990-06-14
1991-06-18
Ullah, Akm
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455612, G02B 628, G02F 100, G02F 200, G02F 300
Patent
active
050245023
ABSTRACT:
A system for transmitting optical information uses several transmitters and receivers connected by optical fibers. The transmitters and receivers are arranged in individual networks in each of which all the optical fibers leaving the transmitters are coupled to one another and all the optical fibers arriving at the receivers are coupled to one another. In addition, all the optical fibers leaving the transmitters in each individual network are interconnected to the corresponding optical fibers, i.e., those leaving the transmitters, in all the other networks.
REFERENCES:
patent: 4705350 (1987-11-01), Cheng
patent: 4730888 (1988-03-01), Darcie et al.
patent: 4781427 (1988-11-01), Husbands et al.
patent: 4784453 (1988-11-01), Shaw et al.
patent: 4787692 (1988-11-01), Spanke
patent: 4787693 (1988-11-01), Kogelnik et al.
Laser Focus, vol. 15, No. 10, Oct. 1979, pp. 60, 62, 64, 66.
National Aerospace and Electronics Conference NAECON, 1987, May 18-22, 1987, IEEE, New York, U.S., vol. 1, pp. 158-164.
Domergue Jean-Paul
Isbert Jacques
Maisonneuve Jean-Michel
Palandjian Philippe
Parize Gabrielle
Office National d'Etudes et de Recherche Aerospatiales (ONERA)
Societe Nationale Industrielle et Aerospatiale
Ullah Akm
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