Patents by Inventor Zheng Xiang

Zheng Xiang 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).

  • Publication number: 20200412288
    Abstract: A motor parameter tracking method, which can dynamically track motor parameters includes: exciting, with a voltage excitation signal, a motor to operate, and acquiring at least one actual voltage across two terminals of the motor and an actual current flowing through the motor in an operating state; modelling a voltage error of the motor based on the at least one actual voltage and the actual current to obtain a voltage error function of the motor; and performing iteration on at least one motor parameter based on the voltage error function and a preset iterative step. With the method, the difference between different batches of motors can be adaptively adjusted, and parameter changes caused by a motor temperature, a motor posture and the like can be dynamically tracked. All motor parameters are provided with a same step, which reduces the difficulty of parameter adjustment and the sensitivity of algorithms to parameters.
    Type: Application
    Filed: August 14, 2020
    Publication date: December 31, 2020
    Inventors: Tao Li, Xuan Guo, Zheng Xiang
  • Publication number: 20200409463
    Abstract: An actuator excitation signal processing method includes the step of obtaining original excitation signal. An encrypted excitation signal was obtained by encrypting the original excitation signal. Vibration waveforms generated by the encrypted excitation signal and the original excitation signal while acting on the actuator are same. The encrypted excitation signal is used to drive the actuator to vibrate. The actuator excitation signal processing method can effectively solve the problem that the excitation signal might be stolen by encrypting the original excitation signal. In addition, an actuator signal processing device, a computer equipment and a kind of storage medium are also proposed.
    Type: Application
    Filed: August 17, 2020
    Publication date: December 31, 2020
    Inventors: Xiuyue Wang, Zheng Xiang, Xuan Guo, Tao Li
  • Patent number: 10840685
    Abstract: A cable-holding device with sealing assembly includes a body having a main unit, a first connecting portion and a second connecting portion, a sealing assembly on the body, and an adjustment element on the second connecting portion. The body has a connecting hole, and the second connecting portion is extended with plural clamping arms. The sealing assembly includes a first sealing portion outside the first connecting portion, a second sealing portion inside the clamping arms to form a tightening port, and a connecting portion between the first sealing portion and the second sealing portion. On the second connecting portion, the adjustment element includes a first movement state which forms a tightening state on the tightening port, and a second movement state which changes the tightening port from the tightening state into a non-tightening state gradually.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: November 17, 2020
    Assignee: CONCRAFT HOLDING CO., LTD.
    Inventors: Chin-Hsing Lee, Heng Yang, Zheng-Xiang Wang
  • Patent number: 10819305
    Abstract: The embodiments of the present invention relate to the field of audio signal processing and disclose a method for adjusting sound quality, which includes: acquiring an audio signal to be adjusted; acquiring a resonance frequency and a frequency response curve of an exciter; forming a recursive filter and determining a filter parameter of the recursive filter according to the frequency response curve; inputting the audio signal to be adjusted into the recursive filter within a preset range of the resonance frequency to acquire an equalizing signal; performing preset sound effect processing on the equalizing signal to acquire a signal to be excited, wherein the preset sound effect processing at least includes inputting the equalizing signal into a non-recursive filter, and inputting the signal to be excited into the exciter to output an audio signal. The present invention further provides a tone quality adjusting device.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: October 27, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Yingming Qin, Bing Xie, Zheng Xiang
  • Patent number: 10816602
    Abstract: The present disclosure provides a method for measuring bandwidth of linear motor, including the following steps: step S1: setting a frequency distribution of an excitation signal; step S2: with reference to a target displacement level, measuring a steady state displacement peak of a motor vibrator at each frequency point of the excitation signal, and obtaining a frequency response curve with reference to the target displacement level; step S3: according to the frequency response curve obtained in step S2, determining an upper frequency limit and a lower frequency limit with reference to the target displacement level, and obtaining a bandwidth of the linear motor by calculating a difference between the upper frequency limit and the lower frequency limit.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: October 27, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Hanlin Deng, Zheng Xiang, Xiang Lu
  • Patent number: 10811899
    Abstract: A power switching circuit receives a first power, a second power and a switching signal, and generates an output power. The power switching circuit includes a first power path and a second power path. The first power path is connected with the first power. The second power path is connected with the second power. When the switching signal in a logic high level, the first power path is in a conducting state and the second power path is in a non-conducting state. Consequently, the first power is selected as the output power by the power switching circuit. When the switching signal in a logic low level, the first power path is in the non-conducting state and the second power path is in the conducting state. Consequently, the second power is selected as the output power by the power switching circuit.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: October 20, 2020
    Assignees: FARADAY TECHNOLOGY CORPORATION, Faraday Technology Corp.
    Inventors: Xiao-Dong Fei, Zheng-Xiang Wang, Song-Rong Han, Wei Wang
  • Patent number: 10802472
    Abstract: The present disclosure relates to the technical field of electronic devices, and discloses a method and an apparatus for controlling motor vibration. The method includes: obtaining an input signal based on an expected motor vibration curve, inputting a digital signal sequence of the input signal to an equalizer, and obtaining an output signal after processing by the equalizer, and inputting the output signal to a motor to control vibration of the motor, where the equalizer is a digital filter constructed based on a damping factor ? and a resonance frequency ?n of the motor, and a preset system sampling frequency fs, a preset damping factor ?d, and a preset cut-off frequency ?d. The method and apparatus provided in embodiments of the present disclosure have an advantage that an actual vibration effect of the motor can be consistent with an expected motor vibration curve.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: October 13, 2020
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Hanlin Deng, Liang Jiang, Zheng Xiang, Tao Li, Wensheng Xu
  • Publication number: 20200261436
    Abstract: Novel compounds of the structural formula I, and the pharmaceutically acceptable salts thereof, are inhibitors of TarO and may be useful in the prevention, treatment and suppression of diseases mediated by TarO, such as bacterial infections, including gram negative bacterial infections and gram positive bacterial infections such as MRSA and MRSE, alone or in combination with a ?-lactam antibiotic.
    Type: Application
    Filed: December 13, 2016
    Publication date: August 20, 2020
    Applicant: MERCK SHARP & DOHME CORP.
    Inventors: John P. CALDWELL, Reynalda DE JESUS, Fa-Xiang DING, Charles J. GIll, Ginny Dai HO, Sookhee N. HA, Sandra J. KOSEOGLU, Marc A. LABROLI, Sang Ho LEE, Christina MADSEN-DUGGAN, Mihir MANDAL, Terry ROEMER, Jing SU, Christopher Michael TAN, Zheng TAN, Haifeng TANG, Hao WANG, Christine YANG, Shu-Wei YANG
  • Publication number: 20200213794
    Abstract: A method and a system for measuring a total sound pressure level of noise, and a computer readable storage medium are provided. The method includes: obtaining a time domain digital signal of a sound pressure signal of the noise; obtaining a frequency domain signal of the sound pressure signal according to the time domain digital signal of the sound pressure signal; obtaining a sound pressure effective value of the sound pressure signal based on the frequency domain signal and according to Parseval's theorem; and converting the sound pressure effective value into the total sound pressure level of the noise.
    Type: Application
    Filed: December 4, 2019
    Publication date: July 2, 2020
    Inventors: Yingming Qin, Zheng Xiang, Bing Xie
  • Publication number: 20200209900
    Abstract: A method for recognizing a motor system is provided. The method includes steps of: establishing a functional series filter model for describing a motor system; generating a logarithmic sweep signal; feeding the logarithmic sweep signal to the motor system and obtaining, by an accelerometer, a vibration acceleration output by the motor system; generating an inverse signal of the logarithmic sweep signal generated; convolving the vibration acceleration with the inverse signal to obtain a one-dimensional impulse response sequence; intercepting the one-dimensional impulse response sequence by using a window function to obtain impulse response sequences; solving kernel functions according to the impulse response sequences, substituting the kernel functions into a recognition formula of the motor system, and describing and identifying the motor system through the recognition formula.
    Type: Application
    Filed: December 5, 2019
    Publication date: July 2, 2020
    Inventors: Xuan Guo, Zheng Xiang, Tao Li
  • Publication number: 20200211338
    Abstract: Provided a haptic feedback method, including: step S1 of algorithmically training an audio clip containing a known audio event type to obtain an algorithm model; and step S2 of obtaining an audio, identifying the audio by the algorithm model to obtain different audio event types in this audio, matching, according to a preset rule, the audio event types with different vibration effects as a haptic feedback and outputting the haptic feedback. Compared with the related art, the present haptic feedback method provides users with real-time haptic feedback when applied to a mobile electronic product, thereby achieving excellent use experience of the mobile electronic product.
    Type: Application
    Filed: December 5, 2019
    Publication date: July 2, 2020
    Inventors: Tao Li, Zheng Xiang, Xuan Guo
  • Publication number: 20200203990
    Abstract: A power switching circuit receives a first power, a second power and a switching signal, and generates an output power. The power switching circuit includes a first power path and a second power path. The first power path is connected with the first power. The second power path is connected with the second power. When the switching signal in a logic high level, the first power path is in a conducting state and the second power path is in a non-conducting state. Consequently, the first power is selected as the output power by the power switching circuit. When the switching signal in a logic low level, the first power path is in the non-conducting state and the second power path is in the conducting state. Consequently, the second power is selected as the output power by the power switching circuit.
    Type: Application
    Filed: June 10, 2019
    Publication date: June 25, 2020
    Inventors: Xiao-Dong FEI, Zheng-Xiang WANG, Song-Rong HAN, Wei WANG
  • Publication number: 20200204135
    Abstract: The embodiments of the present invention relate to the field of audio signal processing and disclose a method for adjusting sound quality, which includes: acquiring an audio signal to be adjusted; acquiring a resonance frequency and a frequency response curve of an exciter; forming a recursive filter and determining a filter parameter of the recursive filter according to the frequency response curve; inputting the audio signal to be adjusted into the recursive filter within a preset range of the resonance frequency to acquire an equalizing signal; performing preset sound effect processing on the equalizing signal to acquire a signal to be excited, wherein the preset sound effect processing at least includes inputting the equalizing signal into a non-recursive filter, and inputting the signal to be excited into the exciter to output an audio signal. The present invention further provides a tone quality adjusting device.
    Type: Application
    Filed: December 9, 2019
    Publication date: June 25, 2020
    Inventors: Yingming Qin, Bing Xie, Zheng Xiang
  • Patent number: 10681848
    Abstract: An ECU, a control box, and a CMF using the ECU are provided. The control box includes a heat sink and the ECU. The ECU include a support bracket mounted on the heat sink, a power supply board supported by the support bracket, and a signal board stacked over the power supply board and electrically connecting with the power supply board. The support bracket is made of an insulation material. The power supply board carries a plurality of power devices which are in contact with the heat sink for heat dissipation multiple power devices.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: June 9, 2020
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: You Qing Xiang, Xiao Jun Yan, Nan Zheng, Yun Chen, Hai Dong Wan, Jian Zhao
  • Patent number: 10642440
    Abstract: A touch button with better feel in pressing is disposed on a casing, including a touch board having a touch area and a press area, a fixing element disposed on a side of the touch board to form a difference in height from the touch board, an elastic connector for connecting the touch board with the fixing element and forming a state of elastic vertical displacement between the press area and the casing, and plural elastic supporters forming an elastic supporting force to the press area, thereby enabling the press area to manifest the state of elastic vertical displacement on the casing by the elastic supporting force.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: May 5, 2020
    Assignee: CONCRAFT HOLDING CO., LTD
    Inventors: Chang-Hsien Tung, Zheng-Xiang Wang
  • Publication number: 20200083683
    Abstract: A cable-holding device with sealing assembly includes a body having a main unit, a first connecting portion and a second connecting portion, a sealing assembly on the body, and an adjustment element on the second connecting portion. The body has a connecting hole, and the second connecting portion is extended with plural clamping arms. The sealing assembly includes a first sealing portion outside the first connecting portion, a second sealing portion inside the clamping arms to form a tightening port, and a connecting portion between the first sealing portion and the second sealing portion. On the second connecting portion, the adjustment element includes a first movement state which forms a tightening state on the tightening port, and a second movement state which changes the tightening port from the tightening state into a non-tightening state gradually.
    Type: Application
    Filed: October 23, 2018
    Publication date: March 12, 2020
    Inventors: Chin-Hsing LEE, Heng YANG, Zheng-Xiang WANG
  • Publication number: 20200056933
    Abstract: The present disclosure provides a method for detecting a bandwidth of a linear vibration motor, including a linear vibration motor which comprises a housing and a motor vibrator. The method includes the following steps: step S1: setting a target displacement level of the linear vibration motor; step S2: measuring a displacement frequency response curve of the motor vibrator with reference to the target displacement level; step S3: comparing the displacement frequency response curve obtained in step S2 with a preset standard target displacement frequency response curve, determining whether the displacement frequency response curve is qualified, and if it is qualified, entering step S4; step S4: measuring a bandwidth of the linear vibration motor.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 20, 2020
    Inventors: Hanlin Deng, Liang Jiang, Zheng Xiang, Xiang Lu
  • Publication number: 20200057109
    Abstract: The present disclosure provides a method for measuring bandwidth of linear motor, including the following steps: step S1: setting a frequency distribution of an excitation signal; step S2: with reference to a target displacement level, measuring a steady state displacement peak of a motor vibrator at each frequency point of the excitation signal, and obtaining a frequency response curve with reference to the target displacement level; step S3: according to the frequency response curve obtained in step S2, determining an upper frequency limit and a lower frequency limit with reference to the target displacement level, and obtaining a bandwidth of the linear motor by calculating a difference between the upper frequency limit and the lower frequency limit.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 20, 2020
    Inventors: Hanlin Deng, Zheng Xiang, Xiang Lu
  • Publication number: 20200052637
    Abstract: The present disclosure provides a system and a method for controlling motor parameters. The system includes a feedforward processing module performing a linear processing on a control signal according to parameters; a control object module including a DAC digital to analog converter, an amplifying circuit and an ADC analog to digital converter, a control signal processed by the feedforward processing module passing through the DAC digital to analog converter, and amplified by the amplifier circuit, and passing through the ADC analog to digital converter to obtain a voltage vcm[n] and a current icm[n] across the motor; a system identification module including an LMS adaptive filter, a Least mean square filtering performed on an error signal err[n] between a measurement current icm[n] and a prediction current icp[n], results of iteration feed back to the feedforward processing module, and the feedback results applied to the next data acquisitions and parameters calculations.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 13, 2020
    Inventors: Zheng Xiang, Xiang Lu, Hanlin Deng, Liang Jiang
  • Publication number: 20200047216
    Abstract: The present disclosure provides a method for generating a motor vibration wave, including the following steps: step S1: exciting a motor by a white noise signal, and measuring a vibration signal of the motor by an acceleration sensor; and step S2: obtaining an impulse response of system based on the vibration signal obtained by the acceleration sensor; and step S3: constructing an expected vibration waveform; and step S4: performing Wiener inverse filtering on the vibration waveform obtained in step S3 to obtain a frequency-domain signal; and step S5: performing inverse fast Fourier transform on the frequency-domain signal obtained in step S4 to obtain an excitation signal in time domain. With such method for generating a motor vibration wave provided by the present disclosure, the expected vibration waveform can be automatically generated and conveniently extracted.
    Type: Application
    Filed: August 1, 2019
    Publication date: February 13, 2020
    Inventors: Zheng Xiang, Hanlin Deng, Xiang Lu