Patents by Inventor Xiacong LIU

Xiacong LIU 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: 10785838
    Abstract: An indoor power line transmission control system, includes: a transforming dimming controller (1), which is used to load, onto an electrical signal, a received dimming signal sent by a mobile terminal or input by a user in a touch-control manner, and send the electrical signal loaded with the dimming signal to a dimming driver (2); and the dimming driver, which is electrically connected with the transforming dimming controller and a dimming luminaire (3), and used to read the electrical signal loaded with the dimming signal, and adjust a gray scale of the dimming luminaire according to the read electrical signal. By replacing a normal switch with the transforming dimming controller and by using the dimming driver and transmitting the dimming signal to the dimming luminaire by means of a power line, flexibility of having no wiring, simple extension and smart dimming are realized and energy can be saved.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: September 22, 2020
    Assignee: LUXOTECH LIMITED
    Inventors: Hon Sheung Liu, Sing Ng, Xiacong Liu, Wai Pak Choi
  • Patent number: 10546368
    Abstract: A method and a display driver for compensating the perceptual bias of edge boost when driving a display panel are provided. The method can pre-process an input image to compensate for a perceptual bias of edge boost, e.g., at a contiguous group of color bands in the input image prior to sending the input image in a form of plural frames to a display panel for display. The method includes the steps of partitioning an input image into one or more grayscale regions, segmenting the grayscale regions into a plurality of color bands, detecting a subtle but perceivably significant change of color or luminance between two adjacent color bands, identifying a transition region and performing color dilution on the transition region. The display driver can include an input buffer, an image processor configured to execute the above method and an output buffer.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: January 28, 2020
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Jun Chen, Xiacong Liu, Sing Ng, Wing Chi Stephen Chan, Cheung Fai Lee
  • Publication number: 20190394848
    Abstract: An indoor power line transmission control system, includes: a transforming dimming controller (1), which is used to load, onto an electrical signal, a received dimming signal sent by a mobile terminal or input by a user in a touch-control manner, and send the electrical signal loaded with the dimming signal to a dimming driver (2); and the dimming driver, which is electrically connected with the transforming dimming controller and a dimming luminaire (3), and used to read the electrical signal loaded with the dimming signal, and adjust a gray scale of the dimming luminaire according to the read electrical signal. By replacing a normal switch with the transforming dimming controller and by using the dimming driver and transmitting the dimming signal to the dimming luminaire by means of a power line, flexibility of having no wiring, simple extension and smart dimming are realized and energy can be saved.
    Type: Application
    Filed: November 10, 2017
    Publication date: December 26, 2019
    Inventors: Hon Sheung Liu, Sing Ng, Xiacong Liu, Wai Pak Choi
  • Publication number: 20190073754
    Abstract: A method and a display driver for compensating the perceptual bias of edge boost when driving a display panel are provided. The method can pre-process an input image to compensate for a perceptual bias of edge boost, e.g., at a contiguous group of color bands in the input image prior to sending the input image in a form of plural frames to a display panel for display. The method includes the steps of partitioning an input image into one or more grayscale regions, segmenting the grayscale regions into a plurality of color bands, detecting a subtle but perceivably significant change of color or luminance between two adjacent color bands, identifying a transition region and performing color dilution on the transition region. The display driver can include an input buffer, an image processor configured to execute the above method and an output buffer.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 7, 2019
    Inventors: Jun CHEN, Xiacong LIU, Sing NG, Wing Chi Stephen CHAN, Cheung Fai LEE
  • Patent number: 10133405
    Abstract: A touch-sensing-enabled display module is provided. In the module, a display panel has an electroluminescent layer, such as an organic light emitting diode (OLED) layer, sandwiched between cathode electrodes and anode electrodes. The anode electrodes transmit touch-sensing signals induced at the display panel. The MSN performs multiplexing and summing on the touch-sensing signals to produce output-channel signals for touch sensing. The multiplexing and the summing are reconfigurable such that the touch-sensing signals are dynamically selected for summing to produce one or more output-channel signals. A touch controller measures the output-channel signals to generate touch data. The module further includes a display driver for driving the cathode and anode electrodes. By using the MSN, the display panel is able to provide adaptive sensor reconfiguration.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: November 20, 2018
    Assignee: Solomon Systech (Shenzhen) Limited
    Inventors: Sing Ng, Wing Chi Stephen Chan, Hon Sheung Liu, Xiacong Liu, Siu Hong Lui
  • Publication number: 20180136775
    Abstract: A touch-sensing-enabled display module is provided. In the module, a display panel has an electroluminescent layer, such as an organic light emitting diode (OLED) layer, sandwiched between cathode electrodes and anode electrodes. The anode electrodes transmit touch-sensing signals induced at the display panel. The MSN performs multiplexing and summing on the touch-sensing signals to produce output-channel signals for touch sensing. The multiplexing and the summing are reconfigurable such that the touch-sensing signals are dynamically selected for summing to produce one or more output-channel signals. A touch controller measures the output-channel signals to generate touch data. The module further includes a display driver for driving the cathode and anode electrodes. By using the MSN, the display panel is able to provide adaptive sensor reconfiguration.
    Type: Application
    Filed: November 11, 2016
    Publication date: May 17, 2018
    Inventors: Sing Ng, Wing Chi Stephen Chan, Hon Sheung Liu, Xiacong Liu, Siu Hong Lui
  • Patent number: 9954441
    Abstract: A slim and cost effective power module solution derived from the multiple-phase buck converter technology that addresses the problems of inductor thickness and excessive magnetic material use. Such power module solution utilizes a multi-phase constant current topology and a corresponding electronic controller to provide a constant current source for various OLED lighting applications. The multi-phase constant current topology comprises two or more inductor-flyback diode feedback loops. Each inductor-flyback diode feedback loop is triggered ON and OFF out-of-phase by a current controller, which senses and estimates the average current supplied to the load, and causes the adjustments to the average current supplied to the load by controlling the ON duration of the inductor-flyback diode feedback loops.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: April 24, 2018
    Assignee: SOLOMON SYSTECH LIMITED
    Inventors: Wing Chi Stephen Chan, Siu Hong Lui, Sing Ng, Hon Sheung Liu, Xiacong Liu, Johnkid Lo, Rong Gao
  • Publication number: 20170310218
    Abstract: A slim and cost effective power module solution derived from the multiple-phase buck converter technology that addresses the problems of inductor thickness and excessive magnetic material use. Such power module solution utilizes a multi-phase constant current topology and a corresponding electronic controller to provide a constant current source for various OLED lighting applications. The multi-phase constant current topology comprises two or more inductor-flyback diode feedback loops. Each inductor-flyback diode feedback loop is triggered ON and OFF out-of-phase by a current controller, which senses and estimates the average current supplied to the load, and causes the adjustments to the average current supplied to the load by controlling the ON duration of the inductor-flyback diode feedback loops.
    Type: Application
    Filed: April 26, 2017
    Publication date: October 26, 2017
    Inventors: Wing Chi Stephen CHAN, Siu Hong LUI, Sing NG, Hon Sheung LIU, Xiacong LIU, Johnkid LO, Rong GAO