Patents by Inventor Yue Liang

Yue Liang 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).

  • Driving circuit for sound producing device
    Patent number: 11057692
    Abstract: A driving circuit is disclosed. The driving circuit includes a first node, coupled to at least a first air pulse generating element, wherein the driving circuit produces a first driving signal to the at least a first air pulse generating element via the first node; a second node, coupled to at least a second air pulse generating element, wherein the driving circuit produces a second driving signal to the at least a second air pulse generating element via the second node; a first swapping module, coupled to the first node and the second node, configured to be conducted within a first conduction interval; wherein a first voltage level at the first node and a second voltage level at the second node are substantially swapped after the first conduction interval.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: July 6, 2021
    Assignee: xMEMS Labs, Inc.
    Inventor: Jemm Yue Liang
  • Sound producing device
    Patent number: 11057716
    Abstract: 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: Grant
    Filed: July 2, 2020
    Date of Patent: July 6, 2021
    Assignee: xMEMS Labs, Inc.
    Inventors: Chiung C. Lo, Wen-Chien Chen, Chun-I Chang, Jemm Yue Liang
  • SOUND PRODUCING DEVICE
    Publication number: 20210204067
    Abstract: 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: Application
    Filed: July 2, 2020
    Publication date: July 1, 2021
    Inventors: Chiung C. Lo, Wen-Chien Chen, Chun-I Chang, Jemm Yue Liang
  • Cell arrangement of sound producing device
    Patent number: 11051108
    Abstract: A sound producing device is disclosed. The sound producing device includes a first air pulse generating element, driven by a first driving signal comprising a first electrical pulse, the first electrical pulse comprises a first transition edge with a first transition polarity; and a second air pulse generating element, disposed adjacent to the first air pulse generating element, driven by a second driving signal comprising a second electrical pulse, the second electrical pulse comprises a second transition edge with a second transition polarity; wherein the first transition polarity is opposite to the second transition polarity; wherein the first transition edge generally coincides with the second transition edge; wherein air pulses generated by the first or the second air pulse generating element produce non-zero offset in terms of sound pressure level.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: June 29, 2021
    Assignee: xMEMS Labs, Inc.
    Inventor: Jemm Yue Liang
  • Air pulse generating element and sound producing device with virtual valve
    Patent number: 11043197
    Abstract: An air pulse generating element is disclosed. The air pulse generating element includes a membrane, actuated according to a driving signal; a plate, wherein a chamber is formed between the plate and the membrane; wherein during a first phase of the driving signal, the membrane is actuated to change a volume within the chamber to generate an air pulse; wherein during a second phase of the driving signal, the membrane is actuated such that a gap is temporarily formed; wherein the temporarily formed gap is configured to provide a temporary air shunt to accelerate an air balancing process between a first air pressure at a first side of the membrane and a second air pressure at a second side of the membrane.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: June 22, 2021
    Assignee: xMEMS Labs, Inc.
    Inventors: Jemm Yue Liang, Jye Ren
  • Driving Circuit with Energy Recycle Capability
    Publication number: 20210175798
    Abstract: A driving circuit is disclosed. The driving circuit includes a charging circuit, coupled between a voltage source and a load, configured to form a first current from the voltage source to the load; and a discharging circuit, coupled between the voltage source and the load, configured to form a second current from the load back to the voltage source.
    Type: Application
    Filed: September 15, 2020
    Publication date: June 10, 2021
    Inventor: Jemm Yue Liang
  • Method of Driving Circuit with Energy Recycle Capability
    Publication number: 20210175864
    Abstract: A method applied in a driving circuit is disclosed. The driving circuit is coupled between a voltage source and a load and configured to drive the load. The method includes: forming, by the driving circuit, a first current from the voltage source to the load; and forming, by the driving circuit, a second current from the load back to the voltage source.
    Type: Application
    Filed: September 16, 2020
    Publication date: June 10, 2021
    Inventor: Jemm Yue Liang
  • MIMO antenna and terminal
    Patent number: 10992065
    Abstract: The present invention provides a MIMO antenna. The MIMO antenna includes a regular octagonal substrate and eight antenna components with a same structure arranged along eight edges of the regular octagonal substrate, and the eight antenna components are distributed in an annular array. The present disclosure further provides a terminal applying with the MIMO antenna. The eight antenna components in the MIMO antenna provided by the present disclosure are distributed in an annular array, so that an area occupied by the MIMO antenna in the terminal is greatly reduced; and moreover, the antenna components have good isolation therebetween and are simple in form, and the MIMO antenna has a higher bandwidth.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: April 27, 2021
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Yue Liang, Jianan Wang, Yongli Chen
  • Sound producing device
    Patent number: 10979808
    Abstract: The present invention provides a sound producing device comprising: an air pulse generating element and a control unit. The air pulse generating element comprises an air chamber and an actuator. The control unit, configured to generate a driving voltage applied to the actuator of the air pulse generating element, such that the air pulse generating element generates a plurality of air pulses in response to the driving voltage. The plurality of air pulses are at a pulse rate, and the pulse rate of the plurality of air pulses is higher than a maximum audible frequency.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: April 13, 2021
    Assignee: xMEMS Labs, Inc.
    Inventors: Jemm Yue Liang, Chiung C. Lo
  • Electroacoustic Convertor, Audio Device and Audio Method Thereof
    Publication number: 20210105567
    Abstract: An audio device includes an electroacoustic convertor and a differential amplifier. The electroacoustic convertor has a first output terminal and a second output terminal. A first polarity of a first capacitance variation corresponding to the first output terminal is opposite to a second polarity of a second capacitance variation corresponding to the second output terminal. The first capacitance variation and the second capacitance variation are associated with a magnitude of acoustic pressure. The differential amplifier has a first input terminal coupled to the first output terminal and a second input terminal coupled to the second output terminal.
    Type: Application
    Filed: July 19, 2020
    Publication date: April 8, 2021
    Inventor: Jemm Yue Liang
  • PACKAGE STRUCTURE OF SOUND PRODUCING DEVICE AND MANUFACTURING METHOD THEREOF
    Publication number: 20210092500
    Abstract: A package structure of a sound producing device includes a base, a cap, a chip and a chamber. The cap is disposed on the base. The chip is disposed on the base, the chip includes a thin film structure and an actuator configured to actuate the thin film structure to generate a plurality of air pulses, and the cap and the chip are on a same side of the base. The chamber is formed by the base and the cap or formed by the base, the cap and the chip; the thin film structure is disposed in the chamber. One of the base or the cap has a sound outlet opening connected to the chamber, and the air pulses propagate outwards through the sound outlet opening.
    Type: Application
    Filed: November 28, 2019
    Publication date: March 25, 2021
    Inventors: Chiung C. Lo, JengYaw Jiang, David Hong, Lei Chen, Jemm Yue Liang
  • Routing Of Multicore Optical Fibers In Data Networks
    Publication number: 20210088729
    Abstract: A method of splicing multicore optical fibers to one another for use in a data network. First and second multicore optical fibers each have a number of cores arranged in a certain pattern about the fiber axis, thus defining a number of pairs of cores wherein the cores of each pair are arrayed symmetrically with respect to a key plane that includes the fiber axis. Ends of the first and the second fibers are arranged in axial alignment to one another such that the key plane at the end of the first fiber is aligned with the key plane at the end of the second fiber, thereby placing a defined pair of cores in the first fiber in position for splicing to a corresponding defined pair of cores in the second fiber. The defined pairs of cores in the two fibers are then spliced to one another.
    Type: Application
    Filed: October 26, 2020
    Publication date: March 25, 2021
    Applicant: OFS Fitel, LLC
    Inventors: Kelvin B. Bradley, Eric J. Leichter, Gregory A. Sandels, Yue Liang
  • Antenna system and electronic device
    Patent number: 10930998
    Abstract: An antenna system is provided. The antenna system has a system grounding unit, a metal frame and a main board. The metal frame is spaced apart from the system grounding unit to form a clearance zone. The metal frame is a first radiator. The antenna system further has a second radiator, a switch, a capacitor and a main matching circuit. The second radiator is located in the clearance zone. The main board has a feeding point. The metal frame has a first connecting part and a second connecting part. An end of the capacitor is connected to the second radiator, and another end of the capacitor is connected to the main matching circuit. The second radiator is connected to the main board via the switch.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: February 23, 2021
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Yongli Chen, Zhongyue Wang, Yue Liang
  • SOUND PRODUCING DEVICE
    Publication number: 20210006907
    Abstract: A sound producing device includes at least one air pulse generating element. Each of the at least one air pulse generating element includes a membrane, a first air chamber and at least one opening, wherein a chamber pressure exists in the first air chamber. The membrane is actuated to change the chamber pressure of the first air chamber to generate a plurality of air pulses, the air pulses are propagated through the at least one opening, the air pulses produce a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a pressure value of an ambient pressure outside the sound producing device.
    Type: Application
    Filed: February 27, 2020
    Publication date: January 7, 2021
    Inventors: Jemm Yue Liang, Lei Chen
  • Transmission Cable
    Publication number: 20200411940
    Abstract: The invention provides a transmission cable with a main baseline layer and a superimposed line layer. The main baseline layer includes a superimposed part, and a non-superimposed part. The superimposed line layer and the superimposed part form an unbendable part; the non-superimposed part forms a bendable par. The main baseline layer includes a first grounding layer, a first base layer stacked, a signal line layer, and a second base layer. The superimposed line layer includes a third base layer and a second grounding layer. The bendable part is small in thickness, so that the transmission cable provided by the invention has good bending performance, thereby improving the practicability of the transmission cable and prolonging the service life of the transmission cable.
    Type: Application
    Filed: August 11, 2020
    Publication date: December 31, 2020
    Inventors: Yue Liang, Yongli Chen, Jianan Wang
  • Audio apparatus and audio method thereof
    Patent number: 10867594
    Abstract: An audio apparatus includes a sound sensing device, a first amplifier and a sound producing device. The sound sensing device configured to detect an ambient sound pressure. The first amplifier coupled to the sound sensing device is configured to convert a first signal corresponding to the ambient sound pressure into a second signal with inverted polarity of the first signal. The sound producing device is coupled to the first amplifier and configured to produce a counter sound pressure corresponding to the second signal. Overall phase delay from the ambient sound pressure to the counter sound pressure is less than 25 degrees.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 15, 2020
    Assignee: xMEMS Labs, Inc.
    Inventor: Jemm Yue Liang
  • Sound producing device
    Patent number: 10863280
    Abstract: A sound producing device is provided. The sound producing device includes a membrane, disposed within a chamber, controlled by a membrane control signal to cause a membrane movement; and a first deflector, disposed within a first opening by the membrane, controlled by a first deflector control signal to cause a first deflector rotation; wherein the sound producing device produces a plurality of air pulses via the membrane movement and the first deflector rotation, the plurality of air pulses has an air pulse rate, the air pulse rate is higher than a maximum human audible frequency; wherein the plurality of air pulses produces a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a zero sound pressure level.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: December 8, 2020
    Assignee: xMEMS Labs, Inc.
    Inventor: Jemm Yue Liang
  • Sound producing device
    Patent number: 10805751
    Abstract: A sound producing device (SPD) is provided. The SPD comprises a membrane, having a resonance frequency and a resonance bandwidth; and an actuator, disposed on the membrane, receiving a driving signal corresponding to an input audio signal; wherein the input audio signal has an input audio band which is upper bounded by a maximum frequency; wherein the resonance frequency is higher than the maximum frequency plus a half of the resonance bandwidth.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: October 13, 2020
    Assignee: xMEMS Labs, Inc.
    Inventor: Jemm Yue Liang
  • Sound producing device
    Patent number: 10783866
    Abstract: A sound producing device includes at least one air pulse generating element. Each of the at least one air pulse generating element includes a membrane, a first air chamber and at least one opening, wherein a chamber pressure exists in the first air chamber, and the opening is connected between the first air chamber and an ambient surrounding the sound producing device. The membrane is actuated to change the chamber pressure of the first air chamber to generate a plurality of air pulses, the air pulses are propagated through the at least one opening, the air pulses produce a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a pressure value of an ambient pressure outside the sound producing device.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: September 22, 2020
    Assignee: xMEMS Labs, Inc.
    Inventors: Jemm Yue Liang, Lei Chen, Martin George Lim
  • Sound producing device
    Patent number: 10779088
    Abstract: A sound producing device includes at least one air pulse generating element. Each of the at least one air pulse generating element includes a membrane, a first air chamber and at least one opening, wherein a chamber pressure exists in the first air chamber. The membrane is actuated to change the chamber pressure of the first air chamber to generate a plurality of air pulses, the air pulses are propagated through the at least one opening, the air pulses produce a non-zero offset in terms of sound pressure level, and the non-zero offset is a deviation from a pressure value of an ambient pressure outside the sound producing device. Each pulse cycle has a pulse-generating time segment and a pulse-isolating time segment, the driving signal during the pulse-generating time segment is different from the driving signal during the pulse-isolating time segment.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: September 15, 2020
    Assignee: xMEMS Labs, Inc.
    Inventors: Jemm Yue Liang, Lei Chen