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1. 发明授权

US10638234B2 Speaker system 有权
公开(公告)号：US10638234B2
公开(公告)日：2020-04-28
申请号：US16090801
申请日：2017-04-12
申请人： DAI-ICHI SEIKO CO., LTD.
发明人： Kenji Ogata , Yoshifumi Ikeda , Shogo Kurogi , Yoshiyuki Watanabe
IPC分类号： H04R17/00 , H04R3/00 , H01L41/04 , H01L41/083 , H04R1/00 , H04R1/24 , H04R19/02
CPC分类号： H04R17/00 , H01L41/042 , H01L41/083 , H04R1/005 , H04R1/24 , H04R3/00 , H04R19/02 , H04R2499/13
摘要： A piezoelectric driver (10) includes n piezoelectric layers (3A to 3D) (where n is an integer equal to or greater than 2) that are stacked, with electrode layers (4B to 4D) each interposed between any adjacent piezoelectric layers, and with electrode layers (4A and 4E) further formed underneath the lowermost piezoelectric layer (3A) and on top of the uppermost piezoelectric layer (3D), and the piezoelectric driver (10) is bent and displaced in the direction in which the piezoelectric layers are stacked. A signal converter (11) converts an n-bit digital signal (IS) into n bits of a bit string data signal (BS) comprising of bit data indicating whether a drive voltage to be applied to each of the piezoelectric layers (3A to 3D) via the electrode layers (4A to 4B) is on or off. An output device (12) outputs, in accordance with values of the individual bits in the bit string data signal (BS) provided through conversion performed by the signal converter (11), drive voltages to be applied to the individual piezoelectric layers (3A to 3D).

2. 发明授权

US10007244B2 System, a method and a computer program product for controlling a set of actuator elements 有权
公开(公告)号：US10007244B2
公开(公告)日：2018-06-26
申请号：US14402599
申请日：2013-05-23
申请人： AUDIO PIXELS LTD.
发明人： Daniel Lewin , Yuval Cohen , Eric Andreas Haber , Shay Kaplan , Meir Ben Simon , Raanan Zacher
IPC分类号： G06F3/16 , G05B19/042 , H04R1/00 , H04R3/12
CPC分类号： G05B19/0426 , G05B2219/23265 , G05B2219/23292 , H04R1/005 , H04R3/12 , H04R2201/401
摘要： A system includes an apparatus and a processor. The apparatus includes a set of actuator elements that move between two positions. Each actuator element is comprised in: exactly one first subset out of a plurality of non-empty first subsets and exactly one second subset out of a plurality of non-empty second subsets. The processor is configured to generate one or more control commands for a group of subsets out of the first and the second pluralities of subsets in response to a number of moving elements which, if released from the first extreme position during a second sampling cycle, enables production by the apparatus during the second sampling cycle of a sound.

3. 发明申请

US20180132764A1 SYSTEM AND METHOD TO CAPTURE IMAGE OF PINNA AND CHARACTERIZE HUMAN AUDITORY ANATOMY USING IMAGE OF PINNA 审中-公开
公开(公告)号：US20180132764A1
公开(公告)日：2018-05-17
申请号：US15811441
申请日：2017-11-13
申请人： EmbodyVR, Inc.
发明人： Kapil Jain
IPC分类号： A61B5/12 , H04R1/10 , H04R1/22
CPC分类号： H04S7/304 , A61B5/121 , A61B5/4005 , A61B6/5217 , G01B7/14 , G06K9/00362 , G06K9/66 , G06T1/0007 , G06T7/73 , G06T7/80 , H04R1/005 , H04R1/1008 , H04R1/1016 , H04R1/1058 , H04R1/22 , H04R1/32 , H04R1/323 , H04R3/04 , H04R5/033 , H04R5/04 , H04R11/02 , H04R2201/029 , H04R2225/77 , H04S3/008 , H04S7/301 , H04S7/306 , H04S2400/11 , H04S2420/01
摘要： An image of a pinna is captured. Based on the image of the pinna, a non-linear transfer function is determined which characterizes how sound is transformed at the pinna. A signal is output indicative of one or more audio cues to facilitate spatial localization of sound via the pinna, where the one or more audio cues is based on the non-linear transfer function.

4. 发明授权

US09973858B2 Electro-acoustic conversion film and digital speaker 有权
公开(公告)号：US09973858B2
公开(公告)日：2018-05-15
申请号：US15394387
申请日：2016-12-29
申请人： FUJIFILM Corporation
发明人： Tetsu Miyoshi
IPC分类号： H04R17/00 , H01L41/37 , H01L41/047 , H01L41/09 , H04R1/00 , H04R7/06 , H01L41/18 , H01L41/257
CPC分类号： H04R17/005 , H01L41/047 , H01L41/09 , H01L41/183 , H01L41/257 , H01L41/37 , H04R1/005 , H04R7/06 , H04R2307/025
摘要： Provided is an electro-acoustic conversion film that is suitably used for a digital speaker or the like, and that includes a polymer composite piezoelectric body formed by dispersing piezoelectric particles in a viscoelastic matrix formed of a polymer material having viscoelasticity at room temperature, and thin-film electrodes provided on both surfaces of the polymer composite piezoelectric body, and at least one of the thin-film electrodes is divided into a plurality of regions of which an area increases by 2n times (n is a natural number including 0). Thus, a digital speaker in which reverberation or crosstalk between segments is suppressed is obtained.

5. 发明申请

US20180109866A1 DIGITALLY DRIVEN HEADPHONE 审中-公开
公开(公告)号：US20180109866A1
公开(公告)日：2018-04-19
申请号：US15785574
申请日：2017-10-17
申请人： Audio-Technica Corporation
发明人： Kenzo TSUIHIJI
IPC分类号： H04R1/10 , H04R9/06
CPC分类号： H04R1/1041 , H04R1/005 , H04R1/026 , H04R1/1008 , H04R1/1033 , H04R1/1075 , H04R3/12 , H04R9/06
摘要： A digitally driven headphone suppresses the occurrence of spurious radiation even when directly converting digital signals into sound waves. The digitally driven headphone includes a first sound emission unit, a second sound emission unit, and a signal line. The first sound emission unit includes at least one magnetic body into which the signal line is inserted, a signal processing circuit configured to process digital signals from a sound source, a circuit board on which the signal processing circuit is disposed, a driving part configured to drive the diaphragm in response to digital signals from the sound source, and a diaphragm configured to vibrate in response to driving of the driving part. The signal processing circuit has an output part disposed at an end portion of the circuit board. The signal line is inserted into the at least one magnetic body, and is connected to the output part and the second sound emission unit. The at least one magnetic body is disposed adjacent to the output part.

6. 发明申请

US20180098139A1 PIEZOELECTRIC ARRAY ELEMENTS FOR SOUND RECONSTRUCTION WITH A DIGITAL INPUT 审中-公开
公开(公告)号：US20180098139A1
公开(公告)日：2018-04-05
申请号：US15563829
申请日：2016-04-07
申请人： KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Armando Arpys AREVALO CARRENO , David CONCHOUSO GONZALEZ , David CASTRO SIGNORET , Ian G. FOULDS
IPC分类号： H04R1/00 , H04R31/00 , H04R17/00 , H04R1/02
CPC分类号： H04R1/005 , H04R1/02 , H04R17/00 , H04R17/005 , H04R31/00 , H04R31/006 , H04R2201/003
摘要： Various examples are provided for digital sound reconstruction using piezoelectric array elements. In one example, a digital loudspeaker includes a fixed frame and an array of transducers disposed on the fixed frame. Individual transducers of the array of transducers can include a flexible membrane disposed on a piezoelectric actuation element positioned over a corresponding opening that extends through the fixed frame. In another example, a method includes forming a flexible membrane structure on a substrate and backetching the substrate opposite the flexible membrane structure. The flexible membrane structure can be formed by disposing a first electrode layer on a substrate, disposing a piezoelectric layer on the first electrode layer and disposing a second electrode layer on the piezoelectric layer. A flexible membrane layer (e.g., polyimide) can be disposed on the second electrode layer.

7. 发明授权

US09654890B2 System and method for testing 有权
公开(公告)号：US09654890B2
公开(公告)日：2017-05-16
申请号：US14655074
申请日：2013-11-17
申请人： AUDIO PIXELS LTD.
发明人： Eric Andreas Haber , Yuval Cohen , Shay Kaplan , Daniel Lewin , Meir Ben Simon
IPC分类号： H04R29/00 , H04R1/00
CPC分类号： H04R29/001 , H04R1/005 , H04R29/00
摘要： The present disclosure provides a method for testing an apparatus which comprises a set of operational subunits each comprising a moving element, wherein the moving elements move between respective first and second extreme positions, the method comprising: transferring to the apparatus stabilization control commands; transferring to the apparatus first latching-commands for latching to the first extreme position a candidate moving element which is a moving element of a candidate operational subunit; when the first latching control commands are in effect, measuring a first output frequency of an oscillator whose output is coupled to the candidate operational subunit in an electrical coupling setup which causes the output frequency of the oscillator to depend on positions of a plurality of moving elements which comprises the candidate moving element; and based on the first output frequency determining a state of the candidate operational subunit.

8. 发明申请

US20170111745A1 ELECTRO-ACOUSTIC CONVERSION FILM AND DIGITAL SPEAKER 审中-公开
公开(公告)号：US20170111745A1
公开(公告)日：2017-04-20
申请号：US15394024
申请日：2016-12-29
申请人： FUJIFILM Corporation
发明人： Tetsu MIYOSHI
IPC分类号： H04R17/00 , H01L41/047 , H01L41/257 , H01L41/29 , H01L41/193 , H04R1/00 , H01L41/09
CPC分类号： H04R17/005 , H01L41/047 , H01L41/09 , H01L41/183 , H01L41/193 , H01L41/257 , H01L41/29 , H04R1/005
摘要： Provided is an electro-acoustic conversion film that is suitably used for a digital speaker or the like, and that includes a polymer composite piezoelectric body formed by dispersing piezoelectric particles in a viscoelastic matrix formed of a polymer material having viscoelasticity at room temperature, and thin-film electrodes provided on both surfaces of the polymer composite piezoelectric body, in which at least one of the thin-film electrodes is divided into a plurality of regions having the same area, and the respective regions are coupled in parallel and grouped to correspond to a weight of each bit digit of a parallel PCM digital signal. Thus, an electro-acoustic conversion film by which a digital speaker in which reverberation or crosstalk between segments is suppressed is obtained is provided.

9. 发明授权

US09584941B2 Micromechanical digital loudspeaker 有权
标题翻译：微机械数字扬声器
公开(公告)号：US09584941B2
公开(公告)日：2017-02-28
申请号：US14711630
申请日：2015-05-13
申请人： Infineon Technologies AG
发明人： Alfons Dehe
IPC分类号： H04R25/00 , H04R31/00 , H04R1/00 , H04R19/00 , H04R9/06 , H04R17/00 , H04R19/02
CPC分类号： H04R31/00 , H04R1/00 , H04R1/005 , H04R9/06 , H04R17/00 , H04R19/005 , H04R19/02 , H04R2201/003 , H04R2231/00 , Y10T29/49005
摘要： A digital loudspeaker and a method for operating a digital loudspeaker are disclosed. In an embodiment a digital loudspeaker includes a substrate, a first stator fixed with respect to the substrate, a second stator fixed with respect to the substrate and spaced at a distance from the first stator, and a membrane between the first stator and the second stator. The membrane is displaceable between a first position in which the membrane mechanically contacts the first stator and a second position in which the membrane mechanically contacts the second stator. The first stator and the second stator are arranged to electrostatically move the membrane from a rest position spaced apart from the first position and the second position to the first position and the second position, respectively.
摘要翻译：公开了一种用于操作数字扬声器的数字扬声器和方法。在一个实施例中，数字扬声器包括基板，相对于基板固定的第一定子，相对于基板固定并与第一定子隔开一段距离的第二定子，以及在第一定子和第二定子之间的隔膜。膜可以在其中机械地接触第一定子的第一位置和薄膜机械地接触第二定子的第二位置之间移位。第一定子和第二定子被布置成使隔膜从静止位置静止地从第一位置和第二位置间隔开移动到第一位置和第二位置。

10. 发明申请

US20150172802A1 NECKBAND-TYPE EARPHONE 有权
标题翻译： NECKBAND型耳机
公开(公告)号：US20150172802A1
公开(公告)日：2015-06-18
申请号：US14367560
申请日：2012-12-12
申请人： Katsuyoshi Takeno , Yoshinari Fukushima
发明人： Katsuyoshi Takeno , Yoshinari Fukushima
IPC分类号： H04R1/10
CPC分类号： H04R1/105 , H04R1/005 , H04R1/1008 , H04R1/1016 , H04R1/1041 , H04R5/033 , H04R5/0335 , H04R2460/17
摘要： [Problem] The purpose of the present invention is to provide a neckband-type earphone that can be worn for a long time without subjecting the wearer to discomfort of wearing a neckband-type earphone, and in which the extent of hazard to the wearer when worn is lowered and locations that break are reduced. [Solution] A neckband-type earphone provided with: earphone parts which are inserted into the pinnae of the wearer and which output an audio signal; ear holder parts which connect to the earphone parts and which abut the upper side of the pinnae of the wearer; holder bodies provided with the ear holder parts; earphone drivers provided with the holder bodies; and a neck band connecting the two earphone drivers; the holder bodies being provided with a cushion part at a portion that comes into contact with the head of the wearer in the vicinity of the pinnae.
摘要翻译：发明内容本发明的目的在于提供一种可以长时间佩戴的颈带式耳机，而不会使穿着者佩戴颈带型耳机的不适，并且其中对穿戴者的危害程度磨损降低，破碎的位置减少。 [解决方案]一种颈带型耳机，其具有：耳机部件，其插入佩戴者的趾部并输出音频信号; 与耳机部件连接并邻接穿戴者的镊子的上侧的耳托部件; 保持器主体设置有耳托部件; 提供有保持器主体的耳机驱动器; 和连接两个耳机驱动器的颈带; 所述保持体在与所述穿孔器附近的穿戴者的头部接触的部分处设置有缓冲部。

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