Patents by Inventor Ming-Chun Su

Ming-Chun Su 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: 9213438
    Abstract: An optical touchpad including a prism having a four-sided cross section including a light entry interface, a light exit interface, a touch interface and a back interface substantially parallel to and spaced apart from the touch interface. Collimated light enters the prism through the light entry interface, is reflected from the touch interface by total internal reflection, and exits the prism through the light exit interface. A first image sensor detects the collimated light exiting from the light exit interface and a second image sensor detects the image of an object positioned over the touch interface.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: December 15, 2015
    Assignee: OmniVision Technologies, Inc.
    Inventors: Ming-Chun Su, Cheng-Yu Tsai
  • Publication number: 20120306815
    Abstract: An optical touchpad including a prism having a four-sided cross section including a light entry interface, a light exit interface, a touch interface and a back interface substantially parallel to and spaced apart from the touch interface. Collimated light enters the prism through the light entry interface, is reflected from the touch interface by total internal reflection, and exits the prism through the light exit interface. A first image sensor detects the collimated light exiting from the light exit interface and a second image sensor detects the image of an object positioned over the touch interface.
    Type: Application
    Filed: June 2, 2011
    Publication date: December 6, 2012
    Applicant: OMNIVISION TECHNOLOGIES, INC.
    Inventors: Ming-Chun Su, Cheng-Yu Tsai
  • Publication number: 20060275940
    Abstract: A method for controlling well capacity of a photodiode includes providing a reference voltage, which is greater than a voltage of ground, to a gate of a transfer transistor while exposing the photodiode whose one end is connected to ground, so as to control the well capacity of the photodiode.
    Type: Application
    Filed: April 28, 2006
    Publication date: December 7, 2006
    Inventors: Ming-Chun Su, Chien-Chang Huang, Chih-Cheng Hsieh
  • Patent number: 6799231
    Abstract: The invention relates to a virtual I/O device coupled to a memory controller in a microprocessor of computer, the virtual I/O device and a memory unit being in communication with the memory controller via a common interface so that any of a plurality of peripherals is capable of coupling to an arithmetic and logic unit (ALU) in the microprocessor via the virtual I/O device and the memory controller sequentially, and an excessive time spent on a processing of request and acknowledgement in handshake while packets being received or transmitted between a conventional I/O device and the I/O interface in the microprocessor is significantly reduced.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: September 28, 2004
    Assignee: Asix Electronics Corp.
    Inventors: Ching-Ju Hsin, Kwang-Lay Chen, Po-Cheng Huang, Pao-Hsuan Tseng, Ming-Chun Su, Tsung-Mong Shen
  • Publication number: 20040078502
    Abstract: The invention relates to a virtual I/O device coupled to a memory controller in a microprocessor of computer, the virtual I/O device and a memory unit being in communication with the memory controller via a common interface so that any of a plurality of peripherals is capable of coupling to an arithmetic and logic unit (ALU) in the microprocessor via the virtual I/O device and the memory controller sequentially, and an excessive time spent on a processing of request and acknowledgement in handshake while packets being received or transmitted between a conventional I/O device and the I/O interface in the microprocessor is significantly reduced.
    Type: Application
    Filed: October 22, 2002
    Publication date: April 22, 2004
    Applicant: ASIX ELECTRONICS CORPORATION
    Inventors: Ching-Ju Hsin, Kwang-Lay Chen, Po-Cheng Huang, Pao-Hsuan Tseng, Ming-Chun Su, Tsung-Mong Shen
  • Patent number: 6130533
    Abstract: A fan speed detecting circuit includes a resistor installed in the grounding line of the power circuit of the DC fan motor of a cooling fan, a capacitor, a diode connected between the resistor and the capacitor, and a comparator having an inverter terminal connected to the output end of the diode through the capacitor and a non-inverter terminal connected in parallel to the input end of the diode, wherein a transient pulse current is produced at the resistor upon operation of the DC fan motor, causing the comparator to output a pulse frequency wave indicative of the revolving speed of the DC fan motor.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: October 10, 2000
    Assignee: D-Link Corporation
    Inventors: Chung-Wang Lee, Ming-Chun Su, Yu-Ping Chung