Patents by Inventor MAKALO XIE

MAKALO XIE 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).

  • LED system with driver voltage clamping
    Patent number: 10959298
    Abstract: One example includes a light-emitting diode (LED) system. The LED system includes an LED array comprising a plurality of LEDs that are each activated via an LED current provided therethrough to provide illumination. The system also includes an LED controller configured to sequentially activate the plurality of LEDs via at least one LED driver system configured to selectively provide the LED current through each sequential one of the plurality of LEDs in an activated state in response to an activation signal. The at least one LED driver system includes a voltage clamp configured to maintain a substantial constant amplitude difference of a driver voltage associated with the LED current from the activated state to a deactivated state.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: March 23, 2021
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Makalo Xie, Feifei Shen, Richard Tan, Alex Ruan
  • LED SYSTEM WITH DRIVER VOLTAGE CLAMPING
    Publication number: 20200092963
    Abstract: One example includes a light-emitting diode (LED) system. The LED system includes an LED array comprising a plurality of LEDs that are each activated via an LED current provided therethrough to provide illumination. The system also includes an LED controller configured to sequentially activate the plurality of LEDs via at least one LED driver system configured to selectively provide the LED current through each sequential one of the plurality of LEDs in an activated state in response to an activation signal. The at least one LED driver system includes a voltage clamp configured to maintain a substantial constant amplitude difference of a driver voltage associated with the LED current from the activated state to a deactivated state.
    Type: Application
    Filed: November 22, 2019
    Publication date: March 19, 2020
    Inventors: Makalo Xie, Feifei Shen, Richard Tan, Alex Ruan
  • LED system with driver voltage clamping
    Patent number: 10524321
    Abstract: One example includes a light-emitting diode (LED) system. The LED system includes an LED array comprising a plurality of LEDs that are each activated via an LED current provided therethrough to provide illumination. The system also includes an LED controller configured to sequentially activate the plurality of LEDs via at least one LED driver system configured to selectively provide the LED current through each sequential one of the plurality of LEDs in an activated state in response to an activation signal. The at least one LED driver system includes a voltage clamp configured to maintain a substantial constant amplitude difference of a driver voltage associated with the LED current from the activated state to a deactivated state.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: December 31, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Makalo Xie, FeiFei Shen, Richard Tan, Alex Ruan
  • LED SYSTEM WITH DRIVER VOLTAGE CLAMPING
    Publication number: 20180302966
    Abstract: One example includes a light-emitting diode (LED) system. The LED system includes an LED array comprising a plurality of LEDs that are each activated via an LED current provided therethrough to provide illumination. The system also includes an LED controller configured to sequentially activate the plurality of LEDs via at least one LED driver system configured to selectively provide the LED current through each sequential one of the plurality of LEDs in an activated state in response to an activation signal. The at least one LED driver system includes a voltage clamp configured to maintain a substantial constant amplitude difference of a driver voltage associated with the LED current from the activated state to a deactivated state.
    Type: Application
    Filed: April 17, 2018
    Publication date: October 18, 2018
    Inventors: Makalo Xie, FeiFei Shen, Richard Tan, Alex Ruan
  • LED system with driver voltage clamping
    Patent number: 9949327
    Abstract: One example includes a light-emitting diode (LED) system. The LED system includes an LED array comprising a plurality of LEDs that are each activated via an LED current provided therethrough to provide illumination. The system also includes an LED controller configured to sequentially activate the plurality of LEDs via at least one LED driver system configured to selectively provide the LED current through each sequential one of the plurality of LEDs in an activated state in response to an activation signal. The at least one LED driver system includes a voltage clamp configured to maintain a substantial constant amplitude difference of a driver voltage associated with the LED current from the activated state to a deactivated state.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: April 17, 2018
    Assignee: Texas Instruments Incorporated
    Inventors: Makalo Xie, Feifei Shen, Richard Tan, Alex Ruan
  • LED SYSTEM WITH DRIVER VOLTAGE CLAMPING
    Publication number: 20160360584
    Abstract: One example includes a light-emitting diode (LED) system. The LED system includes an LED array comprising a plurality of LEDs that are each activated via an LED current provided therethrough to provide illumination. The system also includes an LED controller configured to sequentially activate the plurality of LEDs via at least one LED driver system configured to selectively provide the LED current through each sequential one of the plurality of LEDs in an activated state in response to an activation signal. The at least one LED driver system includes a voltage clamp configured to maintain a substantial constant amplitude difference of a driver voltage associated with the LED current from the activated state to a deactivated state.
    Type: Application
    Filed: February 28, 2014
    Publication date: December 8, 2016
    Inventors: MAKALO XIE, FEIFEI SHEN, RICHARD TAN, ALEX RUAN
  • TIME COMPENSATION-BASED LED SYSTEM
    Publication number: 20160358528
    Abstract: One example includes a light-emitting diode (LED) system. The LED system includes an LED array comprising a plurality of LEDs that are each activated to provide an LED current therethrough to provide illumination in one of a plurality of colors. The LED system also includes an LED controller configured to activate the plurality of LEDs based on a digital input comprising grayscale data corresponding to activation of the plurality of LEDs and further comprising compensation time data corresponding to an activation pulse-width of each of the plurality of LEDs based on a respective one of the plurality of colors of the respective each one of the plurality of LEDs to maintain a substantially equal activation time of the plurality of LEDs.
    Type: Application
    Filed: February 28, 2014
    Publication date: December 8, 2016
    Inventors: MAKALO XIE, MIKE WANG, DEVIS LIN