Patent ID: 6078006
Filing Date: 2000-06-20
Classification: G10H,Y10S

Abstract:
Stringed musical instrument transducer for converting vibrations into electric signals, said transducer is composed of at least one transducer element (118), at least one dielectric film (107, 108) on at least one side of the transducer element, at least one signal electrode (109) and at least two ground electrodes (111-113), the transducer element having a transducer part (116) and a connection element part (115), whereinthe transducer element is a electret film, containing a permanent electric charge,the film being a cell-type electret film,the transducer part has a laminated structure, where at least the signal electrode is a film-like layer disposed on the surface of the dielectric film, andwherein the transducer has a unitary laminated structure, where the signal and ground electrodes are disposed on the surface of the at least one dielectric film and continue unitary from the transducer part as a connection element part, the electrodes extend from the transducer part as connection element part for connecting the transducer to a signal processing device.