Title:
電気音響変換器
Document Type and Number:
Japanese Patent JP3632978
Kind Code:
B2
Abstract:
The present invention relates to an electroacoustic transducer where the voltage of a capacitive acoustic element is controlled by charging and discharging the charge of the element via an inductance (L) by fast switches (K1, K2). In the case energy unconverted into the acoustic energy of the transducer can be transferred to an energy storage of an electrical circuit formed by the inductance (L) and the capacitance (C1, C2, C0) during each control sequence and in this way the transducer can be made to operate with a good coefficient of efficiency.
Inventors:
Kirya Weinen, Kali
Application Number:
JP50124598A
Publication Date:
March 30, 2005
Filing Date:
June 06, 1997
Export Citation:
Assignee:
Panphonics Owai
International Classes:
H04R19/00; H04R19/02; H04R3/00; (IPC1-7): H04R3/00; H04R19/02
Domestic Patent References:
| JP7008909A | ||||
| JP2265398A |
Foreign References:
| US4259605 |
Attorney, Agent or Firm:
Hidekazu Miyoshi