Patents by Inventor Chao-Sen Chang

Chao-Sen Chang 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).

  • Patent number: 10972840
    Abstract: A speaker includes a circuit board, a peripheral wall, a diaphragm, at least one support member and at least one piezoelectric actuator. The peripheral wall is located on a surface of the circuit board. The diaphragm has an outer boundary attached to the peripheral wall. The diaphragm, the peripheral wall and the circuit board collectively form a chamber. The at least one support member protrudes from the surface of the circuit board and is located within the chamber. The at least one piezoelectric actuator is located on a top of the at least one support member and electrically driven to cause a vibration of the diaphragm under applied electrical bias.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 6, 2021
    Assignee: MERRY ELECTRONICS (SHENZHEN) CO., LTD.
    Inventors: Jen-Yi Chen, Yueh-Kang Lee, Kai-Yu Jiang, Chao-Sen Chang
  • Patent number: 10972844
    Abstract: The invention provides an earphone and a set of earphones. The earphone includes a processing circuit and a filtering module. The processing circuit acquires a first speech signal and performs a pre-processing operation on the first speech signal to generate a second speech signal. The filtering module includes high-pass, low-pass, and band-pass filters. The processing circuit is further configured to: receive first, second, and third signals respectively from the high-pass, low-pass, and band-pass filters; perform a noise reduction operation on the second and third signals to generate a fourth signal; and perform a signal synthesis operation on the first and fourth signals to synthesize the first and fourth signals to form an output speech signal.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: April 6, 2021
    Assignee: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Yen Ta Chiang, Hung-Chi Lin, Chao-Sen Chang
  • Patent number: 10943870
    Abstract: A microphone package structure includes a substrate, a metal housing, a MEMS microphone component and at least one integrated circuit component. The substrate has a first surface and a second surface that are opposite to each other. The metal housing is located on the first surface such that the substrate and the metal housing collectively define a hollow chamber. The MEMS microphone component is located on the metal housing and within the hollow chamber. The at least one integrated circuit component is located within a region of the second surface on which the metal housing has a vertical projection.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: March 9, 2021
    Assignee: MERRY ELECTRONICS (SHENZHEN) CO., LTD.
    Inventor: Chao-Sen Chang
  • Publication number: 20200322731
    Abstract: An acoustic transducer includes a base plate, a vibrating membrane and a back plate. The vibrating membrane covers an opening of the base plate and has a plurality of conjoint vibratile portions and a plurality of elastic structures. The elastic structures are concentrically arranged along peripheries of the vibratile portions. The acoustic transducer further has a connecting portion extending from the back plate to a boundary between each two of the adjacent vibratile portions so as to allow the vibratile portions to generate vibration independently. The elastic structures include a first elastic structure and a second elastic structures arranged alongside of the boundary, and a third elastic structure arranged along an outer periphery of the vibrating membrane. The vibratile portions are geometrically different from each other and different in rigidity, and the vibratile portions can vibrate independently to respond to various sound pressure levels.
    Type: Application
    Filed: June 23, 2020
    Publication date: October 8, 2020
    Applicant: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Jen-Yi Chen, Chao-Sen Chang, Yung-Hsiang Chang
  • Publication number: 20200267479
    Abstract: A microphone package structure includes a substrate, a metal housing, a MEMS microphone component and at least one integrated circuit component. The substrate has a first surface and a second surface that are opposite to each other. The metal housing is located on the first surface such that the substrate and the metal housing collectively define a hollow chamber. The MEMS microphone component is located on the metal housing and within the hollow chamber. The at least one integrated circuit component is located within a region of the second surface on which the metal housing has a vertical projection.
    Type: Application
    Filed: July 29, 2019
    Publication date: August 20, 2020
    Inventor: Chao-Sen CHANG
  • Publication number: 20200266151
    Abstract: An electronic package structure includes a first printed circuit board, a second printed circuit board and first space columns. The first printed circuit board has a first surface and a through hole. The second printed circuit board has a second surface facing the first surface. Each first space column is interconnected between the first surface and the second surface. An encapsulation layer is filled between the first and second printed circuit boards and among the first space columns so as to define a hollow chamber. A MEMS microphone component located within the hollow chamber is located on the first surface and aligned with the through hole. A sensing component is located within the hollow chamber.
    Type: Application
    Filed: September 9, 2019
    Publication date: August 20, 2020
    Inventors: Jen-Yi CHEN, Chao-Sen CHANG, Shen-Hang WEI
  • Patent number: 10710868
    Abstract: A MEMS sensor including an electrode plate, a diaphragm structure, a support structure, and a pressure relief film. The electrode plate has a conductive portion. The diaphragm structure is disposed at a side of the electrode plate with an interval, and has a sensing film. The support structure is disposed between the diaphragm structure and the electrode plate, and surrounds an electrical coupling zone and a gas flow zone. The support structure includes an inner wall and an outer wall. An outer edge of the gas flow zone is surrounded by the inner wall. An outer edge of the electrical coupling zone is surrounded by the outer wall. The pressure relief film covers the gas flow zone.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: July 14, 2020
    Assignee: Merry Electronics (Shenzhen) Co., Ltd.
    Inventors: Kai-Yu Jiang, Jen-Yi Chen, Chao-Sen Chang
  • Publication number: 20200177996
    Abstract: A speaker includes a circuit board, a peripheral wall, a diaphragm, at least one support member and at least one piezoelectric actuator. The peripheral wall is located on a surface of the circuit board. The diaphragm has an outer boundary attached to the peripheral wall. The diaphragm, the peripheral wall and the circuit board collectively form a chamber. The at least one support member protrudes from the surface of the circuit board and is located within the chamber. The at least one piezoelectric actuator is located on a top of the at least one support member and electrically driven to cause a vibration of the diaphragm under applied electrical bias.
    Type: Application
    Filed: June 26, 2019
    Publication date: June 4, 2020
    Inventors: Jen-Yi CHEN, Yueh-Kang LEE, Kai-Yu JIANG, Chao-Sen CHANG
  • Publication number: 20200131024
    Abstract: A MEMS sensor including an electrode plate, a diaphragm structure, a support structure, and a pressure relief film. The electrode plate has a conductive portion. The diaphragm structure is disposed at a side of the electrode plate with an interval, and has a sensing film. The support structure is disposed between the diaphragm structure and the electrode plate, and surrounds an electrical coupling zone and a gas flow zone. The support structure includes an inner wall and an outer wall. An outer edge of the gas flow zone is surrounded by the inner wall. An outer edge of the electrical coupling zone is surrounded by the outer wall. The pressure relief film covers the gas flow zone.
    Type: Application
    Filed: January 31, 2019
    Publication date: April 30, 2020
    Applicant: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Kai-Yu Jiang, Jen-Yi Chen, Chao-Sen Chang
  • Patent number: 10638235
    Abstract: A MEMS speaker including a base, a circuit board, a spacing layer, a vibration mold, and at least one actuator. The base has a first chamber. The circuit board is disposed on the base, and has at least one support portion and a fixing portion disposed around the support portion. The at least one support portion has a first perforation, and a plurality of second perforations are formed between the at least one support portion and the fixing portion. The spacing layer is disposed on the circuit board. A second chamber is formed between the spacing layer and the circuit board. The vibration mold is disposed on the spacing layer. The actuator is disposed on the support portion of the circuit board. The actuator has a shift part and a deformation part disposed above the first perforation of the support portion. The second perforations communicate with the first chamber and the second chamber.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: April 28, 2020
    Assignee: Merry Electronics (Shenzhen) Co., Ltd.
    Inventors: Jen-Yi Chen, Chao-Sen Chang, Kai-Yu Jiang
  • Publication number: 20200059734
    Abstract: A MEMS speaker including a base, a circuit board, a spacing layer, a vibration mold, and at least one actuator. The base has a first chamber. The circuit board is disposed on the base, and has at least one support portion and a fixing portion disposed around the support portion. The at least one support portion has a first perforation, and a plurality of second perforations are formed between the at least one support portion and the fixing portion. The spacing layer is disposed on the circuit board. A second chamber is formed between the spacing layer and the circuit board. The vibration mold is disposed on the spacing layer. The actuator is disposed on the support portion of the circuit board. The actuator has a shift part and a deformation part disposed above the first perforation of the support portion. The second perforations communicate with the first chamber and the second chamber.
    Type: Application
    Filed: October 17, 2018
    Publication date: February 20, 2020
    Applicant: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Jen-Yi Chen, Chao-Sen Chang, Kai-Yu Jiang
  • Patent number: 10536780
    Abstract: A piezoelectric transducer including a substrate, a piezoelectric layer and a stiffening structure is provided. The substrate has a chamber. The piezoelectric layer has a displacement zone, a plurality of sensing zones, a plurality of gaps, a plurality of top electrodes, and a plurality of bottom electrodes. The displacement zone is located over the chamber. The sensing zones are surroundingly connected to an outer edge of the displacement zone and are located over the chamber. The gaps are each formed between any adjacent two of the plurality of sensing zones, and each of the gaps communicates with the chamber. The top electrodes are each disposed on a top surface of each of the sensing zones. The bottom electrodes are each disposed on a bottom surface of each of the sensing zones. The stiffening structure is disposed on a bottom of the displacement zone.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: January 14, 2020
    Assignee: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Jen-Yi Chen, Chao-Sen Chang, Kai-Yu Jiang, Jui-Chin Peng
  • Publication number: 20190222940
    Abstract: A piezoelectric transducer including a substrate, a piezoelectric layer and a stiffening structure is provided. The substrate has a chamber. The piezoelectric layer has a displacement zone, a plurality of sensing zones, a plurality of gaps, a plurality of top electrodes, and a plurality of bottom electrodes. The displacement zone is located over the chamber. The sensing zones are surroundingly connected to an outer edge of the displacement zone and are located over the chamber. The gaps are each formed between any adjacent two of the plurality of sensing zones, and each of the gaps communicates with the chamber. The top electrodes are each disposed on a top surface of each of the sensing zones. The bottom electrodes are each disposed on a bottom surface of each of the sensing zones. The stiffening structure is disposed on a bottom of the displacement zone.
    Type: Application
    Filed: March 7, 2018
    Publication date: July 18, 2019
    Applicant: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Jen-Yi Chen, Chao-Sen Chang, Kai-Yu Jiang, Jui-Chin Peng
  • Patent number: 10072999
    Abstract: An air pressure sensing system including a first sensing unit and a second sensing unit is provided. The first sensing unit includes a substrate, a diaphragm, and a supporting member. The substrate has a cavity connected with an exterior environment. The diaphragm is movably and deformably disposed at the substrate and suspended in the cavity. An electrostatic force is provided to the substrate and the diaphragm to move the diaphragm, such that a portion of the base, the supporting member and the diaphragm are contacted with each other and a closed space is formed therebetween in the cavity. The closed space and the exterior environment are divided by the diaphragm, and the diaphragm is deformed due to an air pressure difference between the closed space and the exterior environment. An air pressure sensing method is also provided.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: September 11, 2018
    Assignee: MERRY ELECTRONICS(SUZHOU) CO., LTD.
    Inventors: Jen-Yi Chen, Chun-Chieh Wang, Chao-Sen Chang, Yung-Shiang Chang
  • Publication number: 20180146302
    Abstract: A MEMS microphone package structure is provided to have a circuit substrate, an acoustic wave transducer, an application-specific integrated circuit, a lid, and at least two solder pads. The circuit substrate has a top surface, a bottom surface, and a sound hole passing through the top surface and the bottom surface. The acoustic wave transducer and the application-specific integrated circuit are disposed on the top surface and electrically connected. The lid is disposed on the top surface and made by a multilayer printed circuit boards. The lid surrounds and covers the acoustic wave transducer and the application-specific integrated circuit. The lid further has a shielding layer completely disposed on inner surfaces of the lid and two embedded first metal layers served for signal transmission and grounding and electrically connected with the solder pads respectively.
    Type: Application
    Filed: December 29, 2017
    Publication date: May 24, 2018
    Inventors: Jen-Yi CHEN, Chao-Sen CHANG, Chun-Chieh WANG, Yong-Shiang CHANG
  • Publication number: 20170343441
    Abstract: An air pressure sensing system including a first sensing unit and a second sensing unit is provided. The first sensing unit includes a substrate, a diaphragm, and a supporting member. The substrate has a cavity connected with an exterior environment. The diaphragm is movably and deformably disposed at the substrate and suspended in the cavity. An electrostatic force is provided to the substrate and the diaphragm to move the diaphragm, such that a portion of the base, the supporting member and the diaphragm are contacted with each other and a closed space is formed therebetween in the cavity. The closed space and the exterior environment are divided by the diaphragm, and the diaphragm is deformed due to an air pressure difference between the closed space and the exterior environment. An air pressure sensing method is also provided.
    Type: Application
    Filed: August 11, 2016
    Publication date: November 30, 2017
    Applicant: MERRY ELECTRONICS(SUZHOU) CO., LTD.
    Inventors: Jen-Yi Chen, Chun-Chieh Wang, Chao-Sen Chang, Yung-Shiang Chang
  • Patent number: 9799337
    Abstract: A microphone apparatus is provided. Whether an electronic signal converted from an audio signal is in compliance with a preset sound characteristic and a preset voice recognition information is determined. When the electronic signal is in compliance with the preset sound characteristic and the preset voice recognition information, an actuation control signal is outputted, so as to trigger an operation of an external circuit external to the microphone apparatus.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: October 24, 2017
    Assignee: MERRY ELECTRONICS(SUZHOU) CO., LTD.
    Inventors: Chao-Sen Chang, Shen-Hang Wei, You-Hsien Lin, Yung-Shiang Chang
  • Publication number: 20170256263
    Abstract: A microphone apparatus is provided. Whether an electronic signal converted from an audio signal is in compliance with a preset sound characteristic and a preset voice recognition information is determined. When the electronic signal is in compliance with the preset sound characteristic and the preset voice recognition information, an actuation control signal is outputted, so as to trigger an operation of an external circuit external to the microphone apparatus.
    Type: Application
    Filed: April 19, 2016
    Publication date: September 7, 2017
    Inventors: Chao-Sen Chang, Shen-Hang Wei, You-Hsien Lin, Yung-Shiang Chang
  • Publication number: 20170257708
    Abstract: An acoustic transducer includes a base plate, a vibrating membrane and a back plate. The vibrating membrane covers an opening of the base plate and has a plurality of conjoint vibratile portions. The acoustic transducer further has a connecting portion that is connected to a boundary between each two of the adjacent vibratile portions so as to allow the vibratile portions to generate vibration independently. The vibratile portions are geometrically different. Thereby, the vibratile portions can vibrate independently. This allows a designer to easily enhance the dynamic range of the acoustic transducer by geometrically modifying the vibrating membrane without increasing the total area of the vibrating membrane while maintaining a certain good degree of sensitivity and signal-to-noise ratio.
    Type: Application
    Filed: May 25, 2017
    Publication date: September 7, 2017
    Applicant: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Jen-Yi Chen, Chao-Sen Chang, Chun-Chieh Wang, Yong-Shiang Chang
  • Patent number: 9656853
    Abstract: A micro-electro-mechanical system (MEMS) chip package including a circuit substrate, a driving chip and a MEMS sensor is provided. The circuit substrate has a first surface and a second surface opposite thereto. The driving chip is embedded within the circuit substrate and includes a first signal transmission electrode, a second signal transmission electrode and a third signal transmission electrode. The MEMS sensor is disposed on the first surface of the circuit substrate. The circuit substrate includes at least one first conductive wiring electrically connected with the first signal transmission electrode and at least one second conductive wiring electrically connected with the second signal transmission electrode. The first conductive wiring is merely exposed at the first surface and the second conductive wiring is merely exposed at the second surface. The MEMS sensor is electrically connected with the first signal transmission electrode through the first conductive wiring.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: May 23, 2017
    Assignee: Merry Electronics(Shenzhen) Co., Ltd.
    Inventors: Jen-Yi Chen, Chao-Sen Chang, Chun-Chieh Wang, Yung-Shiang Chang