Patents by Inventor Xiaoming Chi

Xiaoming Chi 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: 9450520
    Abstract: A motor driver may include a controller, a space vector modulator, a converter and a detector. The space vector modulator may generate driving signals under control of the controller according to a space vector pulse width modulation (“SVPWM”) scheme. The converter may derive AC signals from the driving signals received from the space vector modulator and may output the AC signals to the USM motor. The detector may generate feedback signals representing current and voltage supplied to the USM motor. The controller may revise estimates of space vectors, based on measurements from the detector, to control the space vector modulator to adjust frequencies, amplitudes, or phase angles of the plurality of AC signals.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: September 20, 2016
    Assignee: ANALOG DEVICES, INC.
    Inventors: Xiaoming Chi, Bin Huo
  • Publication number: 20160173004
    Abstract: A motor driver may include a controller, a space vector modulator, a converter and a detector. The space vector modulator may generate driving signals under control of the controller according to a space vector pulse width modulation (“SVPWM”) scheme. The converter may derive AC signals from the driving signals received from the space vector modulator and may output the AC signals to the USM motor. The detector may generate feedback signals representing current and voltage supplied to the USM motor. The controller may revise estimates of space vectors, based on measurements from the detector, to control the space vector modulator to adjust frequencies, amplitudes, or phase angles of the plurality of AC signals.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 16, 2016
    Applicant: ANALOG DEVICES, INC.
    Inventors: Xiaoming Chi, Bin Huo
  • Patent number: 9241142
    Abstract: The present disclosure provides a stream processor, an associated stream controller and compiler, and associated methods for data processing, such as image processing. In some embodiments, a method includes defining a kernel pattern associated with an image frame, and processing the image frame using the defined kernel pattern. The method can further include generating a kernel switch lookup table based on the defined kernel pattern. In various implementations, the stream controller is operable to direct execution of kernels on the image frame according to the defined kernel pattern and the kernel switch lookup table.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: January 19, 2016
    Assignee: Analog Devices Global
    Inventors: Yong Wang, Jianrong Chen, Yimiao Zhao, Youcheng Huang, Xiaoming Chi
  • Patent number: 9094246
    Abstract: A circuit may include a splitter, a controller, and a termination. The splitter may generate, based upon input signals, a plurality of output signals, wherein at least one of the input signals is in more than one different modes at different times and the output signals comprise a first set of the output signals generated based upon comparison of pairs of signals of the first set against each other and a second set of the output signals generated based upon comparison of each signal of the second set to a predetermined threshold voltage. The controller may determine, based upon the second set of the output signals, whether the input signals are in the one of the more than one different modes to generate one or more control signals. The termination may connect loads to each of the input lines, based upon the one or more control signals.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: July 28, 2015
    Assignee: ANALOG DEVICES GLOBAL
    Inventors: Xiaoming Chi, Bin Huo
  • Publication number: 20140204232
    Abstract: The present disclosure provides a stream processor, an associated stream controller and compiler, and associated methods for data processing, such as image processing. In some embodiments, a method includes defining a kernel pattern associated with an image frame, and processing the image frame using the defined kernel pattern. The method can further include generating a kernel switch lookup table based on the defined kernel pattern. In various implementations, the stream controller is operable to direct execution of kernels on the image frame according to the defined kernel pattern and the kernel switch lookup table.
    Type: Application
    Filed: January 24, 2013
    Publication date: July 24, 2014
    Applicant: Analog Devices Technology
    Inventors: Yong Wang, Jianrong Chen, Yimiao Zhao, Youcheng Huang, Xiaoming Chi