Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1989-12-12
1991-04-02
Eisenzopf, Reinhard J.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455606, 455612, G02F 100, G02F 200, H01S 300
Patent
active
050052128
ABSTRACT:
A technique for suppressing mutually induced interference between spatially separate channels which are positioned nearby one another during a first portion thereof to cause interference therebetween, and are positioned relatively far from one another during a second portion thereof to avoid mutually induced interference therebetween. Energy in one of the channels is converted to a signal which is distinguishable by code, frequency, or time, from energy in the other channel. The converted signal is then transmitted in the second portion of one of the channels. Then, any interference in the other channel caused by the converted signal can be suppressed by suppressing the distinguishable energy from the converted signal.
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Journal of Lightwave Technology, vol. 7, No. 6, Jun. 1989, "Wide-Band Lightwave Distribution System Using Subcarrier Multiplexing", T. E. Darcie, et al, pp. 997-1005.
Journal of Lightwave Technology, vol. 7, No. 11, Nov. 1989, "Two Fibers or One? . . . "--L. J. Baskerville, pp. 1733-1740.
Journal of Lightwave Technology, vol. 7, No. 11, Nov. 1989, "Subcarrier Multiplexed Lightwave System Design Considerations for Subscriber Loop Applications", W. I. Way, pp. 1806-1818.
AT&T Bell Laboratories
Eisenzopf Reinhard J.
Negash Kinfe-Michael
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