Telecommunications – Carrier wave repeater or relay system – With frequency conversion
Patent
1993-12-23
1996-02-20
Eisenzopf, Reinhard J.
Telecommunications
Carrier wave repeater or relay system
With frequency conversion
455 73, 455 41, 455 89, 307652, H04B 714
Patent
active
054936918
ABSTRACT:
The present invention provides passive networks which act as the host to nonlinear and parametric interactions, with energy inputs to said networks being caused to "bleed off" auxiliary, and time-delayed conditioning flows resulting in phase modulations to the main input and which achieve, e.g., RF phase conjugation with cancellation of the noise modulation after two-way passage of beams between transmitter and receiver and when used in duplex arrangements. Also, passive networks for noise reduction in communications transmission due to conditioning of electromagnetic fields in higher order group symmetry form. Because a transmitted wave from a network of the present invention is in higher-order group symmetry form, and fields of such higher-order symmetry have a low probability of occurrence naturally, then environmental noise, which is of lower group symmetry form (usually, U(1) symmetry) and has a high probably of natural occurrence, will be excluded from a receiver matched to higher-order symmetry waves. Therefore in the case of communications, less noise will be processed statistically at a receiver designed for SU(2) or higher group symmetry operation, resulting in enhanced signal-to-noise. Also disclosed are passive networks for power transmission resulting in decreased loss in transmission. Higher-order group symmetry matched "receivers" will have enhanced signal-to-noise reception over lower-order symmetry receivers, i.e., leakage to ground will be less.
REFERENCES:
patent: 3300729 (1967-01-01), Chang
patent: 3973208 (1976-08-01), Diamond
patent: 4314373 (1982-02-01), Sellers
patent: 4317231 (1982-02-01), Maurer et al.
patent: 5285177 (1994-02-01), Norose
Eisenzopf Reinhard J.
Nguyen Lee
Zegeer Jim
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