Patents by Inventor Wen-Chien Chen
Wen-Chien Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220369036Abstract: A sound producing cell includes a membrane and an actuating layer. The membrane includes a first membrane subpart and a second membrane subpart, wherein the first membrane subpart and the second membrane subpart are opposite to each other. The actuating layer is disposed on the first membrane subpart and the second membrane subpart. The first membrane subpart includes a first anchored edge which is fully or partially anchored, and edges of the first membrane subpart other than the first anchored edge are non-anchored. The second membrane subpart includes a second anchored edge which is fully or partially anchored, and edges of the second membrane subpart other than the second anchored edge are non-anchored.Type: ApplicationFiled: April 14, 2022Publication date: November 17, 2022Applicant: xMEMS Labs, Inc.Inventors: Chiung C. Lo, Hao-Hsin Chang, Wen-Chien Chen, Chun-I Chang
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Publication number: 20220315412Abstract: A package structure includes a first substrate and a first device disposed on the first substrate. The first device includes at least one anchor structure, a film structure anchored by the anchor structure and an actuator configured to control the film structure to form a first vent temporarily. The film structure partitions a space into a first volume to be connected to an ear canal and a second volume connected to an ambient of a wearable sound device. The ear canal and the ambient are connected via the first vent when the first vent is opened. The first vent is opened by controlling a first membrane portion and a second membrane portion of the film structure, such that a difference between a first displacement of the first membrane portion and a second displacement of the second membrane portion is larger than a thickness of the film structure.Type: ApplicationFiled: June 17, 2022Publication date: October 6, 2022Applicant: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Chiung C. Lo, Martin George Lim, Wen-Chien Chen, Michael David Housholder, David Hong
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Patent number: 11445279Abstract: An air-pulse generating device includes a membrane structure, a valve structure, and a cover structure. A chamber is formed between the membrane structure, the valve structure and the cover structure. An air wave vibrating at an operating frequency is formed within the chamber. The valve structure is configured to be actuated to perform an open-and-close movement to form at least one opening. The at least one opening connects air inside the chamber with air outside the chamber. The open-and-close movement is synchronous with the operating frequency.Type: GrantFiled: December 17, 2021Date of Patent: September 13, 2022Assignee: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Wen-Chien Chen, Jye Ren
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Patent number: 11399228Abstract: An acoustic transducer is configured to perform an acoustic transformation. The acoustic transducer is disposed within a wearable sound device or to be disposed within the wearable sound device. The acoustic transducer includes at least one anchor structure, a film structure and an actuator. The film structure is disposed within a first layer and anchored by the anchor structure disposed within a second layer. The actuator is disposed on the film structure, and the actuator is configured to actuate the film structure to form a vent temporarily. The film structure partitions a space into a first volume to be connected to an ear canal of a wearable sound device user and a second volume to be connected to an ambient of the wearable sound device. The ear canal and the ambient are to be connected via the vent temporarily opened when the film structure is actuated.Type: GrantFiled: June 11, 2021Date of Patent: July 26, 2022Assignee: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Chiung C. Lo, Martin George Lim, Wen-Chien Chen, Michael David Housholder, David Hong
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Publication number: 20220225031Abstract: An air-pulse generating device includes a membrane structure, a valve structure, and a cover structure. A chamber is formed between the membrane structure, the valve structure and the cover structure. An air wave vibrating at an operating frequency is formed within the chamber. The valve structure is configured to be actuated to perform an open-and-close movement to form at least one opening. The at least one opening connects air inside the chamber with air outside the chamber. The open-and-close movement is synchronous with the operating frequency.Type: ApplicationFiled: December 17, 2021Publication date: July 14, 2022Applicant: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Wen-Chien Chen, Jye Ren
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Publication number: 20220225032Abstract: An air-pulse generating device includes a membrane structure, a valve structure, and a cover structure. A chamber is formed between the membrane structure, the valve structure and the cover structure. An air wave vibrating at an operating frequency is formed within the chamber. The valve structure is configured to be actuated to perform an open-and-close movement to form at least one opening. The at least one opening connects air inside the chamber with air outside the chamber. The open-and-close movement is synchronous with the operating frequency.Type: ApplicationFiled: December 17, 2021Publication date: July 14, 2022Applicant: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Wen-Chien Chen, Jye Ren
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Publication number: 20220224999Abstract: An air-pulse generating device includes a membrane structure, a valve structure, and a cover structure. A chamber is formed between the membrane structure, the valve structure and the cover structure. An air wave vibrating at an operating frequency is formed within the chamber. The valve structure is configured to be actuated to perform an open-and-close movement to form at least one opening. The at least one opening connects air inside the chamber with air outside the chamber. The open-and-close movement is synchronous with the operating frequency.Type: ApplicationFiled: December 17, 2021Publication date: July 14, 2022Applicant: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Wen-Chien Chen, Jye Ren
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Publication number: 20220185656Abstract: A method of manufacturing a semiconductor structure includes following operations. A first substrate is provided. A plate is formed over the first substrate. The plate includes a first tensile member, a second tensile member, a semiconductive member between the first tensile member and the second tensile member, and a plurality of apertures penetrating the first tensile member, the semiconductive member and the second tensile member. A membrane is formed over and separated from the plate. The membrane include a plurality of holes. A plurality of conductive plugs passing through the plate or membrane are formed. A plurality of semiconductive pads are formed over the plurality of conductive plugs. The plate is bonded to a second substrate. The second substrate includes a plurality of bond pads, and the semiconductive pads are in contact with the bond pads.Type: ApplicationFiled: March 4, 2022Publication date: June 16, 2022Inventors: YI-HSIEN CHANG, CHUN-REN CHENG, WEI-CHENG SHEN, WEN-CHIEN CHEN
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Patent number: 11323797Abstract: An acoustic transducer is disposed within a wearable sound device or to be disposed within the wearable sound device. The acoustic transducer includes a first anchor structure and a first flap. The first flap includes a first end and a second end. The first end is anchored by the first anchor structure, and the second end is configured to perform a first up-and-down movement to form a vent temporarily. The first flap partitions a space into a first volume to be connected to an ear canal and a second volume to be connected to an ambient of the wearable sound device. The ear canal and the ambient are connected via the vent temporarily opened.Type: GrantFiled: June 11, 2021Date of Patent: May 3, 2022Assignee: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Chiung C. Lo, Martin George Lim, Wen-Chien Chen, Michael David Housholder, David Hong
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Patent number: 11304005Abstract: A crossover circuit, disposed within a sound producing device including a first sound producing cell driven by a first driving signal and a second sound producing cell driven by a second driving signal, includes a first filter receiving an input signal at an input terminal of the first filter, a first subtraction circuit, and a second filter coupled between the output terminal of the first filter and the second input terminal of the first subtraction circuit. A first input terminal of the first subtraction circuit is coupled to the input terminal of the first filter; a second input terminal of the first subtraction circuit is coupled to an output terminal of the first filter. The crossover circuit produces the first driving signal and the second driving signal according to a first output signal of the first subtraction circuit and a second output signal of the first filter respectively.Type: GrantFiled: September 28, 2021Date of Patent: April 12, 2022Assignee: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Hsi-Sheng Chen, Chiung C. Lo, Wen-Chien Chen, Chun-I Chang, Hao-Hsin Chang, Chieh-Yao Chang
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Patent number: 11267693Abstract: A method of manufacturing a semiconductor structure includes providing a first substrate, disposing and patterning a plate over the first substrate, disposing a first sacrificial oxide layer over the plate, forming a plurality of recesses over a surface of the first sacrificial oxide layer, disposing and patterning a membrane over the first sacrificial oxide layer, disposing a second sacrificial oxide layer to surround the membrane and cover the first sacrificial oxide layer; and forming a plurality of conductive plugs passing through the plate or the membrane, wherein the plate includes a semiconductive member and a tensile member, and the semiconductive member is disposed within the tensile member.Type: GrantFiled: July 30, 2020Date of Patent: March 8, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.Inventors: Yi-Hsien Chang, Chun-Ren Cheng, Wei-Cheng Shen, Wen-Chien Chen
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Patent number: 11252511Abstract: A package structure includes a housing and a sound producing chip. The sound producing chip is disposed within the housing. The sound producing chip includes a membrane and an actuator. The membrane includes a coupling plate and a spring structure connected to the coupling plate. The actuator is configured to receive a driving signal to actuate the membrane. The spring structure is situated between the coupling plate and the actuator. The coupling plate is actuated to move by the actuator via the spring structure.Type: GrantFiled: May 31, 2021Date of Patent: February 15, 2022Assignee: xMEMS Labs, Inc.Inventors: Chiung C. Lo, David Hong, Jemm Yue Liang, Lei Chen, Hai-Hung Wen, JengYaw Jiang, Martin George Lim, Wen-Chien Chen, Hsien-Ken Liao, Chun-I Chang
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Publication number: 20220014836Abstract: An acoustic transducer is disposed within a wearable sound device or to be disposed within the wearable sound device. The acoustic transducer includes a first anchor structure and a first flap. The first flap includes a first end and a second end. The first end is anchored by the first anchor structure, and the second end is configured to perform a first up-and-down movement to form a vent temporarily. The first flap partitions a space into a first volume to be connected to an ear canal and a second volume to be connected to an ambient of the wearable sound device. The ear canal and the ambient are connected via the vent temporarily opened.Type: ApplicationFiled: June 11, 2021Publication date: January 13, 2022Applicant: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Chiung C. Lo, Martin George Lim, Wen-Chien Chen, Michael David Housholder, David Hong
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Publication number: 20220014838Abstract: An acoustic transducer is configured to perform an acoustic transformation. The acoustic transducer is disposed within a wearable sound device or to be disposed within the wearable sound device. The acoustic transducer includes at least one anchor structure, a film structure and an actuator. The film structure is disposed within a first layer and anchored by the anchor structure disposed within a second layer. The actuator is disposed on the film structure, and the actuator is configured to actuate the film structure to form a vent temporarily. The film structure partitions a space into a first volume to be connected to an ear canal of a wearable sound device user and a second volume to be connected to an ambient of the wearable sound device. The ear canal and the ambient are to be connected via the vent temporarily opened when the film structure is actuated.Type: ApplicationFiled: June 11, 2021Publication date: January 13, 2022Inventors: Jemm Yue Liang, Chiung C. Lo, Martin George Lim, Wen-Chien Chen, Michael David Housholder, David Hong
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Publication number: 20220014851Abstract: A crossover circuit, disposed within a sound producing device including a first sound producing cell driven by a first driving signal and a second sound producing cell driven by a second driving signal, includes a first filter receiving an input signal at an input terminal of the first filter, a first subtraction circuit, and a second filter coupled between the output terminal of the first filter and the second input terminal of the first subtraction circuit. A first input terminal of the first subtraction circuit is coupled to the input terminal of the first filter; a second input terminal of the first subtraction circuit is coupled to an output terminal of the first filter. The crossover circuit produces the first driving signal and the second driving signal according to a first output signal of the first subtraction circuit and a second output signal of the first filter respectively.Type: ApplicationFiled: September 28, 2021Publication date: January 13, 2022Applicant: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Hsi-Sheng Chen, Chiung C. Lo, Wen-Chien Chen, Chun-I Chang, Hao-Hsin Chang, Chieh-Yao Chang
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Patent number: 11172300Abstract: A sound producing device includes a first sound producing cell, driven by a first driving signal and configured to produce a first acoustic sound on a first audio band, and a second sound producing cell, driven by a second driving signal and configured to produce a second acoustic sound on a second audio band different from the first audio band. A first membrane of the first sound producing cell and a second membrane of the second sound producing cell are Micro Electro Mechanical System fabricated membranes. The first audio band is upper bounded by a first maximum frequency; the second audio band is upper bounded by a second maximum frequency. A first resonance frequency of the first membrane is higher than the first maximum frequency of the first driving signal. A second resonance frequency of the second membrane is higher than the second maximum frequency of the second driving signal.Type: GrantFiled: January 20, 2021Date of Patent: November 9, 2021Assignee: xMEMS Labs, Inc.Inventors: Jemm Yue Liang, Hsi-Sheng Chen, Chiung C. Lo, Wen-Chien Chen, Chun-I Chang, Hao-Hsin Chang
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Publication number: 20210297787Abstract: A package structure includes a housing and a sound producing chip. The sound producing chip is disposed within the housing. The sound producing chip includes a membrane and an actuator. The membrane includes a coupling plate and a spring structure connected to the coupling plate. The actuator is configured to receive a driving signal to actuate the membrane. The spring structure is situated between the coupling plate and the actuator. The coupling plate is actuated to move by the actuator via the spring structure.Type: ApplicationFiled: May 31, 2021Publication date: September 23, 2021Inventors: Chiung C. Lo, David Hong, Jemm Yue Liang, Lei Chen, Hai-Hung Wen, JengYaw Jiang, Martin George Lim, Wen-Chien Chen, Hsien-Ken Liao, Chun-I Chang
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Publication number: 20210250689Abstract: A sound producing device includes a first sound producing cell, driven by a first driving signal and configured to produce a first acoustic sound on a first audio band, and a second sound producing cell, driven by a second driving signal and configured to produce a second acoustic sound on a second audio band different from the first audio band. A first membrane of the first sound producing cell and a second membrane of the second sound producing cell are Micro Electro Mechanical System fabricated membranes. The first audio band is upper bounded by a first maximum frequency; the second audio band is upper bounded by a second maximum frequency. A first resonance frequency of the first membrane is higher than the first maximum frequency of the first driving signal. A second resonance frequency of the second membrane is higher than the second maximum frequency of the second driving signal.Type: ApplicationFiled: January 20, 2021Publication date: August 12, 2021Inventors: Jemm Yue Liang, Hsi-Sheng Chen, Chiung C. Lo, Wen-Chien Chen, Chun-I Chang, Hao-Hsin Chang
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Patent number: 11057716Abstract: A sound producing device includes a base and at least one chip disposed on the base. The chip includes at least one membrane and at least one actuator. The membrane includes a coupling plate and at least one spring structure connected to the coupling plate. The actuator is configured to receive a driving signal corresponding to an input audio signal to actuate the membrane, and the input audio signal and the driving signal have an input audio band which has an upper bound at a maximum frequency. The spring structure is situated between the coupling plate and the actuator. The membrane has a first resonance frequency higher than the maximum frequency.Type: GrantFiled: July 2, 2020Date of Patent: July 6, 2021Assignee: xMEMS Labs, Inc.Inventors: Chiung C. Lo, Wen-Chien Chen, Chun-I Chang, Jemm Yue Liang
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Publication number: 20210204067Abstract: A sound producing device includes a base and at least one chip disposed on the base. The chip includes at least one membrane and at least one actuator. The membrane includes a coupling plate and at least one spring structure connected to the coupling plate. The actuator is configured to receive a driving signal corresponding to an input audio signal to actuate the membrane, and the input audio signal and the driving signal have an input audio band which has an upper bound at a maximum frequency. The spring structure is situated between the coupling plate and the actuator. The membrane has a first resonance frequency higher than the maximum frequency.Type: ApplicationFiled: July 2, 2020Publication date: July 1, 2021Inventors: Chiung C. Lo, Wen-Chien Chen, Chun-I Chang, Jemm Yue Liang