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公开(公告)号：US20220360908A1
公开(公告)日：2022-11-10
申请号：US17618655
申请日：2020-06-04
申请人： USound GmbH
摘要： A method for manufacturing a MEMS sound transducer for generating and/or detecting sound waves in the audible wavelength range and/or in the ultrasonic range, includes arranging at least one piezoelectric element on a support substrate. A diaphragm is formed on the at least one piezoelectric element. In forming the diaphragm, a flowable and curable polymer, which forms the diaphragm after curing, is at least partially cast around the at least one piezoelectric element. The invention further relates to the MEMS sound transducer formed by the method.
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公开(公告)号：US11375317B2
公开(公告)日：2022-06-28
申请号：US16745959
申请日：2020-01-17
申请人： USOUND GMBH
摘要： A manufacturing method for multiple MEMS sound transducers includes manufacturing a reconstructed wafer, separating multiple chips from the wafer, and encapsulating the chips in a molding material. A piezoelectric element of the particular chips is exposed to become deflectable along a stroke axis. The reconstructed wafer is connected to multiple diaphragms associated with the particular chips, wherein the diaphragms are each connected to the associated piezoelectric element so that the diaphragms are each deflectable together with the at least one associated piezoelectric element along the stroke axis. MEMS sound transducers, each of which including at least one of the chips and one of the diaphragms, are isolated. A MEMS sound transducer, which has been manufactured using the aforementioned manufacturing method, is also disclosed.
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公开(公告)号：US11128942B2
公开(公告)日：2021-09-21
申请号：US16625345
申请日：2018-06-08
申请人： USound GmbH
摘要： A sound transducer arrangement for generating and/or detecting sound waves in the audible wavelength spectrum includes an acoustic unit, which includes a vibratable diaphragm and a MEMS unit coupled to the diaphragm for generating and/or detecting a deflection of the diaphragm. The sound transducer arrangement includes a MEMS structure, which includes a support unit on which the MEMS unit and the acoustic unit are arranged. The support unit includes a metallic lead frame and a plastic body, with which the lead frame is partially circumferentially fused.
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公开(公告)号：US20210067853A1
公开(公告)日：2021-03-04
申请号：US16625345
申请日：2018-06-08
申请人： USound GmbH
摘要： A sound transducer arrangement for generating and/or detecting sound waves in the audible wavelength spectrum includes an acoustic unit, which includes a vibratable diaphragm and a MEMS unit coupled to the diaphragm for generating and/or detecting a deflection of the diaphragm. The sound transducer arrangement includes a MEMS structure, which includes a support unit on which the MEMS unit and the acoustic unit are arranged. The support unit includes a metallic lead frame and a plastic body, with which the lead frame is partially circumferentially fused.
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5.发明申请公开(公告)号：US20200045425A1
公开(公告)日：2020-02-06
申请号：US16587723
申请日：2019-09-30
申请人： USOUND GmbH
摘要： A method of manufacturing a MEMS printed circuit board module and/or a sound transducer assembly includes the step of forming a multi-layer printed circuit board by connecting a metallic conductive layer to a plurality of printed circuit board support layers that are laminated together. The method includes the step of forming a multi-layer piezoelectric structure that includes an anchoring area. The method includes the step of turning the anchoring area of the multi-layer piezoelectric structure toward the multi-layer printed circuit board. The method includes the step of laminating the multi-layer printed circuit board directly and firmly to the anchoring area of the multi-layer piezoelectric structure.
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公开(公告)号：US20190268689A1
公开(公告)日：2019-08-29
申请号：US16286870
申请日：2019-02-27
申请人： USOUND GMBH
摘要： A method for operating a piezoelectric speaker for generating sound waves in the audible wavelength spectrum and/or in the ultrasonic range includes at least partially charging a piezo actuator of the piezoelectric speaker with electrical energy of an energy unit and then at least partially discharging the piezo actuator. The method also includes determining at least one present electrical piezo actuator voltage of the piezo actuator. A future input voltage for the piezo actuator is compared with the present electrical piezo actuator voltage prior to charging and/or discharging, and a future differential voltage is derived therefrom. Furthermore, an embodiment of the method can include returning a part of the energy needed to charge the piezo actuator to the energy unit during discharging.
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公开(公告)号：US20240276152A1
公开(公告)日：2024-08-15
申请号：US18439146
申请日：2024-02-12
申请人： USound GmbH
发明人： Andrea Rusconi Clerici Beltrami , Ferruccio Bottoni , Samu Bence Horváth , Christian Novotny , Jakob Spoetl
摘要： In one aspect, a sound transducer unit includes at least two magnet units having a permanent magnetic field and further includes at least two acoustic units. Each acoustic unit has a diaphragm that is deflectable along a stroke axis for generating sound waves. The sound transducer unit also includes a coil arrangement provided in association with each acoustic unit, wherein the coil arrangement is configured to be supplied electric current such that the diaphragm is deflectable along the stroke axis. The at least two magnet units and the at least two acoustic units are arranged alternatively one above the other.
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公开(公告)号：US20220179243A1
公开(公告)日：2022-06-09
申请号：US17540320
申请日：2021-12-02
申请人： USound GmbH
摘要： Eyewear for outputting audio information to the wearer include an eyewear temple, which has at least one loudspeaker. The eyewear temple is configured for placement on an ear of the wearer and spaced apart from an ear opening of the wearer's ear so that the sound waves generated by the loudspeaker are transmitted over the surroundings to the spaced ear opening. The loudspeaker is an ultrasonic loudspeaker. The eyewear has a parametric audio unit that includes the ultrasonic loudspeaker and configured to generate an audible sound beam directed at the ear.
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公开(公告)号：US11303993B2
公开(公告)日：2022-04-12
申请号：US17030685
申请日：2020-09-24
申请人： USOUND GMBH
摘要： A sound transducer unit for an in-ear headphone, for generating and/or detecting sound waves in the audible wavelength spectrum and/or in the ultrasonic range, includes at least one MEMS sound transducer arranged on a circuit board. At least one connector element of the circuit board is electrically conductively connected to at least one contact element of the MEMS sound transducer. The MEMS sound transducer is designed as a surface-mount device, which is connected to the circuit board with the aid of surface-mount technology. The sound transducer unit can form a component of a sound-generating unit.
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公开(公告)号：US20210377682A1
公开(公告)日：2021-12-02
申请号：US17326521
申请日：2021-05-21
申请人： USound GmbH
摘要： A test device for testing a microphone has at least one test loudspeaker for generating at least one test tone into at least one test cavity. The test device has a compartment for accommodating the microphone to be tested in acoustic communication with the test cavity. The test device has at least one reference microphone for ascertaining a reference signal of the test tone emitted from the test loudspeaker. The test device has a reference cavity separated from the test cavity and acoustically coupled with the reference microphone and the test cavity. The test loudspeaker is arranged between the reference microphone and the test loudspeaker.
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