Transducer and method for forming a transducer

Details Transducer and method for forming a transducer Transducer and method for forming a transducer

2007-04-03

2007-04-03

Fletcher, Marlon (Department: 2837)

Music

Instruments

Electrical musical tone generation

C084S725000, C084S730000

Reexamination Certificate

active

10759909

ABSTRACT:
Transducer for converting mechanical stress into electric signals, which transducer is composed of at least one electromechanical sheet (107,108) and is capable of converting mechanical stress into electric signals and in which transducer at least one of the electrodes required by the electromechanical sheet is disposed on the surface of one or more thin and flexible dielectric materials, said electrodes (109) forming electrically conductive surfaces of the transducer for connecting the transducer to a signal processing device, said electromechanical sheets being permanently charged cellular electret film and which transducer is constructed of a unitary, thin and flexible layered laminate structure.

REFERENCES:
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patent: 4654546 (1987-03-01), Hirjavainen
patent: 5123325 (1992-06-01), Turner
patent: 5204487 (1993-04-01), Turner
patent: 5319153 (1994-06-01), Fishman
patent: 5670733 (1997-09-01), Fishman
patent: 6078006 (2000-06-01), Räisänen et al.
patent: 6242683 (2001-06-01), Raisanen et al.
patent: 6689948 (2004-02-01), Raisanen
patent: 7-160265 (1993-03-01), None
patent: WO 96/06718 (1996-03-01), None

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