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1.发明授权公开(公告)号：US08897472B2
公开(公告)日：2014-11-25
申请号：US11628394
申请日：2005-06-03
申请人： Andrew David Unruh , Robert J. True , Edward T. Norcott, Jr. , Jens-Peter Axelsson , Alireza Jabbari , David J. Prince , Kenneth L. Kantor , Ioannis Kanellakopoulos , Shaolin Wei
发明人： Andrew David Unruh , Robert J. True , Edward T. Norcott, Jr. , Jens-Peter Axelsson , Alireza Jabbari , David J. Prince , Kenneth L. Kantor , Ioannis Kanellakopoulos , Shaolin Wei
CPC分类号： H04R7/16 , H04R7/26 , H04R9/06 , H04R9/063 , H04R23/02 , H04R2209/026 , H04R2400/11 , H04R2499/13 , H04R2499/15
摘要： An acoustic transducer comprises one or more electromagnetic motors that drive one or more sets of multiple diaphragms to provide acoustically efficient loudspeaker systems having dimensions that allow use in applications that would be difficult or impossible with traditional transducers. The diaphragms may be driven directly, inertially or fluidically. If diaphragms are driven by rods that pass through holes in the diaphragms, noise may be generated by air that leaks through the pass-through holes. This noise may be reduced or eliminated by measures that reduce or eliminate the air leakage.
摘要翻译： 声换能器包括驱动一组或多组多个隔膜的一个或多个电磁马达，以提供具有允许在传统换能器难于或不可能的应用中使用的尺寸的声效高音扬声器系统。 隔膜可以直接驱动，惯性地或流动地驱动。 如果隔膜由通过隔膜中的孔的杆驱动，则可能会由穿过通孔的空气产生噪音。 通过减少或消除空气泄漏的措施可以减少或消除噪音。
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2.发明申请公开(公告)号：US20090190791A1
公开(公告)日：2009-07-30
申请号：US11628394
申请日：2005-06-03
申请人： Andrew David Unruh , Robert J. True , Edward T. Norcott Jr. , Jens-Peter Axelsson , Alireza Jabbari , David J. Prince , Kenneth L. Kantor , Ioannis Kanellakopoulos , Shaolin Wei
发明人： Andrew David Unruh , Robert J. True , Edward T. Norcott Jr. , Jens-Peter Axelsson , Alireza Jabbari , David J. Prince , Kenneth L. Kantor , Ioannis Kanellakopoulos , Shaolin Wei
IPC分类号： H04R1/00
CPC分类号： H04R7/16 , H04R7/26 , H04R9/06 , H04R9/063 , H04R23/02 , H04R2209/026 , H04R2400/11 , H04R2499/13 , H04R2499/15
摘要： An acoustic transducer comprises one or more electromagnetic motors that drive one or more sets of multiple diaphragms to provide acoustically efficient loudspeaker systems having dimensions that allow use in applications that would be difficult or impossible with traditional transducers. The diaphragms may be driven directly, inertially or fluidically. If diaphragms are driven by rods that pass through holes in the diaphragms, noise may be generated by air that leaks through the pass-through holes. This noise may be reduced or eliminated by measures that reduce or eliminate the air leakage.
摘要翻译： 声换能器包括驱动一组或多组多个隔膜的一个或多个电磁马达，以提供具有允许在传统换能器难于或不可能的应用中使用的尺寸的声效高音扬声器系统。 隔膜可以直接驱动，惯性地或流动地驱动。 如果隔膜由通过隔膜中的孔的杆驱动，则可能会由穿过通孔的空气产生噪音。 通过减少或消除空气泄漏的措施可以减少或消除噪音。
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公开(公告)号：US08942409B2
公开(公告)日：2015-01-27
申请号：US11628395
申请日：2005-06-03
摘要： An improved electrodynamic acoustic transducer eliminates or reduces the need for flexible or elastic materials to suspend an internal magnetic element by using both static and dynamic signal-dependent magnetic fields to control its movement. In one implementation, the transducer has a magnet that moves within a surrounding tube. This tube in turn supports one or more electromagnetic coils that generate a dynamic signal-dependent magnetic field that causes the internal magnetic element to vibrate. The surrounding tube also supports one or more magnets whose location on the tube is fixed and whose magnetic fields provide appropriate restoring forces acting on the internal magnetic element. These fixed magnets may be replaced or supplemented by ferromagnetic materials. This transducer may provide sound and infrasonic vibration by coupling the internal magnetic element to other radiating elements or by being placed in close proximity to or in actual contact with the pinna or meatus of the human ear when used in headphones or earphones, for example, and it also may provide sound through the direct vibration of the air in contact with the surface of the internal magnetic element. When direct atmospheric coupling is not required, the transducer may be assembled in a sealed enclosure.
摘要翻译： 改进的电动声学换能器通过使用静态和动态信号相关磁场来控制其运动来消除或减少对柔性或弹性材料悬挂内部磁性元件的需要。 在一个实施方案中，换能器具有在周围管内移动的磁体。 该管又支持一个或多个电磁线圈，其产生导致内部磁性元件振动的动态信号相关磁场。 周围管还支撑一个或多个磁体，其位于管上的位置是固定的，并且其磁场提供作用在内部磁性元件上的合适的恢复力。 这些固定磁体可以被铁磁材料代替或补充。 该传感器可以通过将内部磁性元件耦合到其它辐射元件或者当用于耳机或耳机时被放置在与人耳的耳廓或耳道紧密接触或实际接触的位置时，提供声音和次声振动，例如， 也可以通过与内部磁性元件的表面接触的空气的直接振动来提供声音。 当不需要直接大气耦合时，传感器可以组装在密封的外壳中。
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公开(公告)号：US5434922A
公开(公告)日：1995-07-18
申请号：US44643
申请日：1993-04-08
CPC分类号： H03G3/32
摘要： This invention comprises a system to compensate for the noise level inside a vehicle by measuring the music level and the noise level in the vehicle through the use of analog to digital conversion and adaptive digital filtering, including a sensing microphone in the vehicle cabin to measure both music and noise; preamplification and analog to digital (A/D) conversion of the microphone signal; A/D conversion of a stereo music signal; a pair of filters that use an adaptive algorithm such as the known Least Mean Squares ("LMS") method to extract the noise from the total cabin sound; an estimation of the masking effect of the noise on the music; an adaptive correction of the music loudness and, optionally, equalization to overcome the masking effect; digital to analog (D/A) conversion of the corrected music signal; and transmission of the corrected music signal to the audio system.
摘要翻译： 本发明包括通过使用模数转换和自适应数字滤波来测量车辆中的音乐水平和噪声水平来补偿车辆内的噪声水平的系统，包括车厢内的感测麦克风以测量两者 音乐和噪音; 麦克风信号的前置放大和模数转换（A / D）转换; 立体声音乐信号的A / D转换; 使用诸如已知的最小均方（“LMS”）方法的自适应算法从总舱声中提取噪声的一对滤波器; 估计噪音对音乐的掩蔽效应; 音乐响度的自适应校正，以及可选地均衡以克服掩蔽效应; 数字到模拟（D / A）转换的校正音乐信号; 以及将校正的音乐信号发送到音频系统。
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公开(公告)号：US5615270A
公开(公告)日：1997-03-25
申请号：US466411
申请日：1995-06-06
CPC分类号： H03G3/32
摘要： This invention comprises a system to compensate for the noise level inside a vehicle by measuring the music level and the noise level in the vehicle through the use of analog to digital conversion and adaptive digital filtering, including a sensing microphone in the vehicle cabin to measure both music and noise; preamplification and analog to digital (A/D) conversion of the microphone signal; A/D conversion of a stereo music signal; a pair of filters that use an adaptive algorithm such as the known Least Mean Squares ("LMS") method to extract the noise from the total cabin sound; an estimation of the masking effect of the noise on the music; an adaptive correction of the music loudness and, optionally, equalization to overcome the masking effect; digital to analog (D/A) conversion of the corrected music signal; and transmission of the corrected music signal to the audio system.
摘要翻译： 本发明包括通过使用模数转换和自适应数字滤波来测量车辆中的音乐水平和噪声水平来补偿车辆内的噪声水平的系统，包括车厢内的感测麦克风以测量两者 音乐和噪音; 麦克风信号的前置放大和模数转换（A / D）转换; 立体声音乐信号的A / D转换; 使用诸如已知的最小均方（“LMS”）方法的自适应算法从总舱声中提取噪声的一对滤波器; 估计噪音对音乐的掩蔽效应; 音乐响度的自适应校正，以及可选地均衡以克服掩蔽效应; 数字到模拟（D / A）转换的校正音乐信号; 以及将校正的音乐信号发送到音频系统。
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