公开(公告)号：WO1996001547A2

公开(公告)日：1996-01-18

申请号：PCT/US1995008131

申请日：1995-06-29

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： NOISE CANCELLATION TECHNOLOGIES, INC. ,  CONLEY, John, K. ,  KOKONASKI, William ,  PARRELLA, Michael, J. ,  MACHACEK, Steven, L.

IPC: H04R17/00

CPC classification number: G06F1/1616 ,  G06F1/1632 ,  G06F1/1688 ,  H04R7/04 ,  H04R17/00

Abstract: This application outlines several applications of a piezoelectric materials invention to produce quality loudspeakers in applications where coil driven dynamic speakers are difficult or impossible to implement with an appreciable degree of sound quality. This invention includes a series of modifications to a laptop computer such as the IBM 750c. The modifications to the computer consist of placing piezoelectric patches behind the LCD and directly to the back wall of the laptop lid. Damping materials and stiffeners are also added to the back wall to reduce structural resonance. A system consisting of an audio amplifier and transformer is used to drive the piezo speaker.

Abstract translation: 该应用概述了压电材料发明的几个应用，以在线圈驱动的动态扬声器难以或不可能以可观的音质程度实现的应用中产生优质扬声器。 本发明包括对诸如IBM 750c之类的膝上型计算机的一系列修改。 对计算机的修改包括将LCD上的压电贴片放置在笔记本电脑盖子的后壁上。 阻尼材料和扶强材也被添加到后壁以减少结构共振。 由音频放大器和变压器组成的系统用于驱动压电扬声器。

公开(公告)号：WO1995031805A1

公开(公告)日：1995-11-23

申请号：PCT/US1995005720

申请日：1995-05-09

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： NOISE CANCELLATION TECHNOLOGIES, INC. ,  EATWELL, Graham, P. ,  McLOUGHLIN, Michael, P. ,  HILDEBRAND, Stephen, F. ,  KOKONASKI, William ,  HINEY, James, W.

IPC: G10K11/16

CPC classification number: G06F1/1684 ,  G06F1/1616 ,  G06F1/1688 ,  G06F3/162 ,  G10K11/178 ,  G10K2210/102 ,  G10K2210/103 ,  G10K2210/1053 ,  G10K2210/1082 ,  G10K2210/109 ,  G10K2210/11 ,  G10K2210/112 ,  G10K2210/3217 ,  H04R1/406 ,  H04R3/005 ,  H04R7/04

Abstract: This invention involves the integration of piezoelectric speaker panels (66, 67) and microphones (68) into a personal computer (65) with a sound card to form a novel multimedia computer. In addition noise cancellation electronics and algorithms are also applied to enhance performance of a voice recognition system included in the computer.

Abstract translation: 本发明涉及将压电扬声器面板（66,67）和麦克风（68）与声卡一体化成个人计算机（65）以形成新颖的多媒体计算机。 此外，还应用噪声消除电子学和算法来增强包括在计算机中的语音识别系统的性能。

公开(公告)号：EP0760996A1

公开(公告)日：1997-03-12

申请号：EP95918420.0

申请日：1995-05-09

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： EATWELL, Graham, P. ,  McLOUGHLIN, Michael, P. ,  HILDEBRAND, Stephen, F. ,  KOKONASKI, William ,  HINEY, James, W.

IPC: G06F1 ,  G06F3 ,  G10K11 ,  H04R1 ,  H04R3 ,  H04R7

CPC classification number: G06F1/1684 ,  G06F1/1616 ,  G06F1/1688 ,  G06F3/162 ,  G10K11/178 ,  G10K2210/102 ,  G10K2210/103 ,  G10K2210/1053 ,  G10K2210/1082 ,  G10K2210/109 ,  G10K2210/11 ,  G10K2210/112 ,  G10K2210/3217 ,  H04R1/406 ,  H04R3/005 ,  H04R7/04

Abstract: This invention involves the integration of piezoelectric speaker panels (66, 67) and microphones (68) into a personal computer (65) with a sound card to form a novel multimedia computer. In addition noise cancellation electronics and algorithms are also applied to enhance performance of a voice recognition system included in the computer.

公开(公告)号：EP0772953A2

公开(公告)日：1997-05-14

申请号：EP95924733.0

申请日：1995-06-29

Applicant: NOISE CANCELLATION TECHNOLOGIES, INC.

Inventor： CONLEY, John, K. ,  KOKONASKI, William ,  PARRELLA, Michael, J. ,  MACHACEK, Steven, L.

IPC: G06F1 ,  H04R17 ,  H04R7

CPC classification number: G06F1/1616 ,  G06F1/1632 ,  G06F1/1688 ,  H04R7/04 ,  H04R17/00

Abstract: The modifications to the computer consist of placing piezoelectric patches behind the LCD and directly to the back wall of the laptop lid. Damping materials and stiffeners are also added to the back wall to reduce structural resonance. A system consisting of an audio amplifier (5) and transformer (6) is used to drive the piezo speaker (7).