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公开(公告)号：US08045735B2
公开(公告)日：2011-10-25
申请号：US11596759
申请日：2005-04-07
IPC分类号： H04R25/00
CPC分类号： H04R17/005 , H04R2217/03
摘要： An ultrasonic transducer includes: a pair of fixed electrodes including a conductive member; a vibrating film having a conductive layer; and a member which holds the pair of fixed electrodes and the vibrating film. The vibrating film is formed of nonconductive bodies and has an electrode layer formed of a conductive material. The electrode layer is applied with a DC bias voltage of a single polarity by a DC bias supply, and is also applied with an AC signal output from a signal source superimposed on the DC bias voltage. The pair of fixed electrodes have a plurality of holes of the same number at positions facing each other via the vibrating film, and an AC signal is applied between the conductive members of the pair of fixed electrodes by the signal source.
摘要翻译： 超声波换能器包括：一对固定电极，包括导电部件; 具有导电层的振动膜; 以及保持该对固定电极和振动膜的构件。 振动膜由非导电体形成并具有由导电材料形成的电极层。 电极层通过直流偏置电源施加单极性的直流偏置电压，并且还施加从叠加在直流偏置电压上的信号源输出的交流信号。 一对固定电极在经由振动膜彼此相对的位置处具有相同数量的多个孔，并且通过信号源在一对固定电极的导电构件之间施加AC信号。
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公开(公告)号：US20050281420A1
公开(公告)日：2005-12-22
申请号：US11155033
申请日：2005-06-16
CPC分类号： B06B1/0292 , G10K11/28 , H02N1/006 , H04R17/005 , H04R2217/03
摘要： An ultrasonic speaker including: a vibration film having a conductive layer; a pair of fixed electrodes provided oppositely to respective surfaces of the vibration film; and an ultrasonic transducer that causes the vibration film to generate sound waves by applying a DC bias voltage to the conductive layer of the vibration film while applying an alternating signal between the pair of fixed electrodes, and outputs the sound waves generated by the vibration film from two sound wave output surfaces via through-holes provided in each of the pair of fixed electrodes. The two sound wave output surfaces of the ultrasonic transducer are disposed in a direction intersecting with a sound wave emitting direction at right angles. Also, sound wave reflection plates are provided to both of the two sound wave output surfaces of the ultrasonic transducer so that the sound waves outputted from each of the two sound wave output surfaces are reflected in the sound wave emitting direction.
摘要翻译： 一种超声波扬声器，包括：具有导电层的振动膜; 与振动膜的各个表面相对设置的一对固定电极; 以及超声波换能器，其通过在所述一对固定电极之间施加交变信号的同时向所述振动膜的导电层施加DC偏置电压而使所述振动膜产生声波，并且将由所述振动膜产生的声波输出 两个声波输出表面通过设置在每对固定电极中的通孔。 超声波换能器的两个声波输出面以与声波发射方向成直角相交的方向配置。 此外，声波反射板被提供给超声波换能器的两个声波输出表面中的两个，使得从两个声波输出表面中的每一个输出的声波在声波发射方向上被反射。
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公开(公告)号：US08009846B2
公开(公告)日：2011-08-30
申请号：US12488789
申请日：2009-06-22
CPC分类号： B06B1/0292 , G10K11/28 , H02N1/006 , H04R17/005 , H04R2217/03
摘要： An ultrasonic speaker including: a vibration film having a conductive layer; a pair of fixed electrodes provided oppositely to respective surfaces of the vibration film; and an ultrasonic transducer that causes the vibration film to generate sound waves by applying a DC bias voltage to the conductive layer of the vibration film while applying an alternating signal between the pair of fixed electrodes, and outputs the sound waves generated by the vibration film from two sound wave output surfaces via through-holes provided in each of the pair of fixed electrodes. The two sound wave output surfaces of the ultrasonic transducer are disposed in a direction intersecting with a sound wave emitting direction at right angles.
摘要翻译： 一种超声波扬声器，包括：具有导电层的振动膜; 与振动膜的各个表面相对设置的一对固定电极; 以及超声波换能器，其通过在所述一对固定电极之间施加交变信号的同时向所述振动膜的导电层施加DC偏置电压而使所述振动膜产生声波，并且将由所述振动膜产生的声波输出 两个声波输出表面通过设置在每对固定电极中的通孔。 超声波换能器的两个声波输出面以与声波发射方向成直角相交的方向配置。
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公开(公告)号：US20090257606A1
公开(公告)日：2009-10-15
申请号：US12488789
申请日：2009-06-22
IPC分类号： H04R1/00
CPC分类号： B06B1/0292 , G10K11/28 , H02N1/006 , H04R17/005 , H04R2217/03
摘要： An ultrasonic speaker including: a vibration film having a conductive layer; a pair of fixed electrodes provided oppositely to respective surfaces of the vibration film; and an ultrasonic transducer that causes the vibration film to generate sound waves by applying a DC bias voltage to the conductive layer of the vibration film while applying an alternating signal between the pair of fixed electrodes, and outputs the sound waves generated by the vibration film from two sound wave output surfaces via through-holes provided in each of the pair of fixed electrodes. The two sound wave output surfaces of the ultrasonic transducer are disposed in a direction intersecting with a sound wave emitting direction at right angles.
摘要翻译： 一种超声波扬声器，包括：具有导电层的振动膜; 与振动膜的各个表面相对设置的一对固定电极; 以及超声波换能器，其通过在所述一对固定电极之间施加交变信号的同时向所述振动膜的导电层施加DC偏置电压而使所述振动膜产生声波，并且将由所述振动膜产生的声波输出 两个声波输出表面通过设置在每对固定电极中的通孔。 超声波换能器的两个声波输出面以与声波发射方向成直角相交的方向配置。
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公开(公告)号：US07881489B2
公开(公告)日：2011-02-01
申请号：US11629248
申请日：2005-05-11
IPC分类号： H04R25/00
CPC分类号： B06B1/0292
摘要： An ultrasonic transducer includes: a fixed electrode having corrugations on the surface; a vibrating film having an electrode layer and disposed on the surface of the fixed electrode; and a holding member which holds the fixed electrode and the vibrating film. The ultrasonic transducer is driven by applying an AC signal between the electrode layer of the vibrating film and the fixed electrode, and generates a sound pressure of at least 120 dB within a frequency range from 20 kHz to 120 kHz.
摘要翻译： 超声波换能器包括：在表面上具有波纹的固定电极; 具有电极层并设置在固定电极的表面上的振动膜; 以及保持固定电极和振动膜的保持构件。 通过在振动膜的电极层和固定电极之间施加AC信号来驱动超声波换能器，并且在20kHz至120kHz的频率范围内产生至少120dB的声压。
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公开(公告)号：US20080013761A1
公开(公告)日：2008-01-17
申请号：US11629248
申请日：2005-05-11
IPC分类号： H04R19/02
CPC分类号： B06B1/0292
摘要： An ultrasonic transducer includes: a fixed electrode having corrugations on the surface; a vibrating film having an electrode layer and disposed on the surface of the fixed electrode; and a holding member which holds the fixed electrode and the vibrating film. The ultrasonic transducer is driven by applying an AC signal between the electrode layer of the vibrating film and the fixed electrode, and generates a sound pressure of at least 120 dB within a frequency range from 20 kHz to 120 kHz.
摘要翻译： 超声波换能器包括：在表面上具有波纹的固定电极; 具有电极层并设置在固定电极的表面上的振动膜; 以及保持固定电极和振动膜的保持构件。 通过在振动膜的电极层和固定电极之间施加AC信号来驱动超声波换能器，并且在20kHz至120kHz的频率范围内产生至少120dB的声压。
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公开(公告)号：US20070242843A1
公开(公告)日：2007-10-18
申请号：US11596759
申请日：2005-04-07
IPC分类号： H04R19/00
CPC分类号： H04R17/005 , H04R2217/03
摘要： An ultrasonic transducer includes: a pair of fixed electrodes including a conductive member; a vibrating film having a conductive layer; and a member which holds the pair of fixed electrodes and the vibrating film. The vibrating film is formed of nonconductive bodies and has an electrode layer formed of a conductive material. The electrode layer is applied with a DC bias voltage of a single polarity by a DC bias supply, and is also applied with an AC signal output from a signal source superimposed on the DC bias voltage. The pair of fixed electrodes have a plurality of holes of the same number at positions facing each other via the vibrating film, and an AC signal is applied between the conductive members of the pair of fixed electrodes by the signal source.
摘要翻译： 超声波换能器包括：一对固定电极，包括导电部件; 具有导电层的振动膜; 以及保持该对固定电极和振动膜的构件。 振动膜由非导电体形成并具有由导电材料形成的电极层。 电极层通过直流偏置电源施加单极性的直流偏置电压，并且还施加从叠加在直流偏置电压上的信号源输出的交流信号。 一对固定电极在经由振动膜彼此面对的位置具有相同数量的多个孔，并且通过信号源在一对固定电极的导电构件之间施加AC信号。
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公开(公告)号：US20060033882A1
公开(公告)日：2006-02-16
申请号：US10916209
申请日：2004-08-11
IPC分类号： G03B31/00
CPC分类号： H04N5/74 , G03B21/14 , G03B21/145 , G03B31/00 , H04N5/60 , H04R2217/03
摘要： A projector including an ultrasonic speaker that includes an ultrasonic transducer capable of oscillating an acoustic signal in a wide frequency band and reproduces signal sound in the audio frequency band, and a projector main body that includes a projecting optical system that projects a video image on a projecting surface. The ultrasonic speaker and the projector main body are integrated with each other.
摘要翻译： 一种包括超声波扬声器的投影仪，其包括能够振荡宽频带中的声信号并再现音频频带中的信号声音的超声波换能器，以及投影仪主体，其包括投影光学系统， 投影面。 超声波扬声器和投影仪主体彼此一体化。
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公开(公告)号：US07564986B2
公开(公告)日：2009-07-21
申请号：US11155033
申请日：2005-06-16
IPC分类号： H04R25/00
CPC分类号： B06B1/0292 , G10K11/28 , H02N1/006 , H04R17/005 , H04R2217/03
摘要： An ultrasonic speaker including: a vibration film having a conductive layer; a pair of fixed electrodes provided oppositely to respective surfaces of the vibration film; and an ultrasonic transducer that causes the vibration film to generate sound waves by applying a DC bias voltage to the conductive layer of the vibration film while applying an alternating signal between the pair of fixed electrodes, and outputs the sound waves generated by the vibration film from two sound wave output surfaces via through-holes provided in each of the pair of fixed electrodes. The two sound wave output surfaces of the ultrasonic transducer are disposed in a direction intersecting with a sound wave emitting direction at right angles. Also, sound wave reflection plates are provided to both of the two sound wave output surfaces of the ultrasonic transducer so that the sound waves outputted from each of the two sound wave output surfaces are reflected in the sound wave emitting direction.
摘要翻译： 一种超声波扬声器，包括：具有导电层的振动膜; 与振动膜的各个表面相对设置的一对固定电极; 以及超声波换能器，其通过在所述一对固定电极之间施加交变信号的同时向所述振动膜的导电层施加DC偏置电压而使所述振动膜产生声波，并且将由所述振动膜产生的声波输出 两个声波输出表面通过设置在每对固定电极中的通孔。 超声波换能器的两个声波输出面以与声波发射方向成直角相交的方向配置。 此外，声波反射板被提供给超声波换能器的两个声波输出表面中的两个，使得从两个声波输出表面中的每一个输出的声波在声波发射方向上被反射。
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公开(公告)号：US07210785B2
公开(公告)日：2007-05-01
申请号：US10916209
申请日：2004-08-11
CPC分类号： H04N5/74 , G03B21/14 , G03B21/145 , G03B31/00 , H04N5/60 , H04R2217/03
摘要： A projector including an ultrasonic speaker that includes an ultrasonic transducer capable of oscillating an acoustic signal in a wide frequency band and reproduces signal sound in the audio frequency band, and a projector main body that includes a projecting optical system that projects a video image on a projecting surface. The ultrasonic speaker and the projector main body are integrated with each other.
摘要翻译： 一种包括超声波扬声器的投影仪，其包括能够振荡宽频带中的声信号并再现音频频带中的信号声音的超声波换能器，以及投影仪主体，其包括投影光学系统， 投影面。 超声波扬声器和投影仪主体彼此一体化。
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