公开(公告)号：WO1998013942A1

公开(公告)日：1998-04-02

申请号：PCT/US1997017231

申请日：1997-09-25

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： NOISE CANCELLATION TECHNOLOGIES, INC. ,  WARNAKA, Glenn, E. ,  WARNAKA, Mark, E. ,  PARRELLA, Michael, J.

IPC: H04B01/00

CPC classification number: H04R7/045 ,  B60R11/0223 ,  B60R13/00 ,  B60R2011/0028 ,  B60R2011/0043 ,  H04R5/02 ,  H04R2499/13

Abstract: An improved loudspeaker system for a passenger vehicle such as an automobile is disclosed. The system comprises a transducer (112) capable of being excited by applied electric potential and electronic means that is electrically connected to the transducer (112) to apply electric potential thereto. It is a feature of the present invention that the diaphragm driven by the excited transducer (112) is comprised of the headliner (111) of the vehicle.

Abstract translation: 公开了一种用于乘用车例如汽车的改进的扬声器系统。 该系统包括能够被施加的电位激励的换能器（112）和电连接到换能器（112）以向其施加电位的电子装置。 本发明的特征在于，由激励的换能器（112）驱动的隔膜由车辆的顶篷（111）组成。

公开(公告)号：WO1997017820A1

公开(公告)日：1997-05-15

申请号：PCT/US1996017602

申请日：1996-11-04

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： NOISE CANCELLATION TECHNOLOGIES, INC. ,  WARNAKA, Glenn, E. ,  WARNAKA, Mark, E.

IPC: H04R25/00

CPC classification number: H04R17/00 ,  H04R7/045

Abstract: The invention consists of a piezoelectric material (11), a substrate or spacer (12) and an electrical connector means (13) for a wire harness or other electrical connection. The substrate (12) is used to enhance the motion of the piezoelectric element (11) by spacing the piezoelectric element (11) from the diaphragm. The substrate (12) is larger in area than the piezoelectric element (11). The transducer system (10) acts to impart motion to the diaphragm. The transducer (10) comprises a piezoelectric element (11) subject to displacement by applied electric potential (13) that has a top side, an underside and an outer perimeter. The substrate (12) is joined to the underside of the piezoelectric element (11). A means (15) applies electric potential to the piezoelectric element (11).

Abstract translation: 本发明由压电材料（11），基底或间隔件（12）和用于线束或其它电连接的电连接器装置（13）组成。 衬底（12）用于通过将压电元件（11）与隔膜隔开来增强压电元件（11）的运动。 基板（12）的面积大于压电元件（11）。 换能器系统（10）用于赋予隔膜运动。 换能器（10）包括通过施加的电位（13）进行位移的压电元件（11），其具有顶侧，下侧和外周。 基板（12）与压电元件（11）的下侧接合。 一种装置（15）将电位施加到压电元件（11）上。

公开(公告)号：EP0872158A1

公开(公告)日：1998-10-21

申请号：EP96937877.0

申请日：1996-11-04

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： WARNAKA, Glenn, E. ,  WARNAKA, Mark, E.

IPC: H04R17 ,  H04R7

CPC classification number: H04R17/00 ,  H04R7/045

Abstract: The invention consists of a piezoelectric material (11), a substrate or spacer (12) and an electrical connector means (13) for a wire harness or other electrical connection. The substrate (12) is used to enhance the motion of the piezoelectric element (11) by spacing the piezoelectric element (11) from the diaphragm. The substrate (12) is larger in area than the piezoelectric element (11). The transducer system (10) acts to impart motion to the diaphragm. The transducer (10) comprises a piezoelectric element (11) subject to displacement by applied electric potential (13) that has a top side, an underside and an outer perimeter. The substrate (12) is joined to the underside of the piezoelectric element (11). A means (15) applies electric potential to the piezoelectric element (11).