Wave transmission lines and networks – Coupling networks – With impedance matching
Patent
1977-03-14
1978-10-10
Smith, Alfred E.
Wave transmission lines and networks
Coupling networks
With impedance matching
84 124, 179 1J, H03H 930, G10H 102
Patent
active
041199332
ABSTRACT:
A reverberation apparatus is adapted for mechanical matching characteristics and comprises at least one reverberation unit comprising a plurality of lattice construction systems of coil springs for transmitting sound-frequency mechanical vibrations, each spring system of which is connected to an electro-mechanical driver transducer and to a mechanical electrical pick-up transducer. Each system of coil springs forms parts of a lattice in at least two dimensions and in the system, the coil springs are mechanically interconnected at a number of coupling points. In each system of coil springs at least some of the coil springs are connected to a rigid frame.
REFERENCES:
patent: 3761629 (1973-09-01), Suzuki
De Lamare Eric P.
Dudon Pierre D.
Nussbaum Marvin
Smith Alfred E.
Telediffusion de France
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