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2. 发明授权

EP1340407B1 LOUDSPEAKERS 有权
公开(公告)号：EP1340407B1
公开(公告)日：2008-01-09
申请号：EP01999128.0
申请日：2001-11-14
申请人： New Transducers Limited
发明人： ELLIS, Christien , HILL, Nicholas Patrick Roland
IPC分类号： H04R7/04
CPC分类号： H04R7/045 , H04R9/045
摘要： A loudspeaker comprising a panel-form acoustic member intended for operation as a bending wave radiator and an electrodynamic moving coil transducer having a voice coil mounted to the acoustic member to excite bending wave vibration in the acoustic member, wherein the junction between the voice coil and the acoustic member is of sufficient length in relation to the size of the acoustic member to represent a line drive such that the acoustic member has a mechanical impedance which has a rising trend with bending wave frequency.

3. 发明公开

EP1340407A2 LOUDSPEAKERS 有权
标题翻译：音箱
公开(公告)号：EP1340407A2
公开(公告)日：2003-09-03
申请号：EP01999128.0
申请日：2001-11-14
申请人： New Transducers Limited
发明人： ELLIS, Christien , HILL, Nicholas Patrick Roland
IPC分类号： H04R7/04
CPC分类号： H04R7/045 , H04R9/045
摘要： A loudspeaker comprising a panel-form acoustic member intended for operation as a bending wave radiator and an electrodynamic moving coil transducer having a voice coil mounted to the acoustic member to excite bending wave vibration in the acoustic member, wherein the junction between the voice coil and the acoustic member is of sufficient length in relation to the size of the acoustic member to represent a line drive such that the acoustic member has a mechanical impedance which has a rising trend with bending wave frequency.
摘要翻译： 1。一种扬声器，其特征在于，具备作为弯曲波辐射体而工作的面板状的音响构件和具有安装在该音响构件上的音圈来激励该音响构件的弯曲波振动的电动动圈式变换器，其特征在于，声学构件相对于声学构件的尺寸具有足够的长度以表示线驱动，使得声学构件具有随着弯曲波频率而呈上升趋势的机械阻抗。

4. 发明公开

EP1240617A2 CONTACT SENSITIVE DEVICE 失效
标题翻译：接触敏感装置
公开(公告)号：EP1240617A2
公开(公告)日：2002-09-18
申请号：EP00985600.6
申请日：2000-12-18
申请人： New Transducers Limited
发明人： HILL, Nicholas Patrick Roland
IPC分类号： G06K11/00
CPC分类号： G06F3/0436 , G06F3/0433 , H04R7/045
摘要： A method and apparatus using bending wave vibration to calculate information relating to a contact on a contact sensitive device (10). The method comprises the steps of providing a member in the contact sensitive device capable of supporting bending waves, providing means attached to the member for measuring bending wave propagation in the member to determine a measured bending wave signal and processing the measured bending wave signal to calculate information relating to the contact. The contact sensitive device (10) may comprise a transparent touch sensitive plate (12) mounted in front of a display device (14). A stylus (18) in the form of a pen may be used for writing text (20) or other matter on the touch sensitive plate (12). The transparent touch sensitive plate (12) may also be an acoustic device capable of supporting bending wave vibration. Three transducers (16) are mounted on the plate (12). At least two of the transducers (16) are sensing transducers or sensors and are thus sensitive to and monitor bending wave vibration in the plate.

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