Patents by Inventor Yong Yeap Tan

Yong Yeap Tan 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).

  • Voltage comparing circuit and voltage comparing method
    Patent number: 10374589
    Abstract: A temperature detecting circuit comprising: a comparator, comprising a first comparing terminal and a second comparing terminal; a time interval computing unit; a switch module, coupled to the first comparing terminal and the second comparing terminal, comprising a reference voltage terminal coupled to a reference voltage source, and comprising a first input terminal, a second input terminal and a third input terminal; a first current source, comprising a first charging terminal coupled to the first input terminal and the second input terminal; a first capacitor, coupled to the first current source at the first charging terminal; a capacitance adjusting unit, coupled to the first capacitor; a second current source, comprising a second charging terminal coupled to the third input terminal, wherein the second current source is a current source which provides a constant current; and a second capacitor, coupled to the second current source at the second charging terminal.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 6, 2019
    Assignee: PixArt Imaging Inc.
    Inventors: Wooi Kip Lim, Yong Yeap Tan
  • VOLTAGE COMPARING CIRCUIT AND VOLTAGE COMPARING METHOD
    Publication number: 20190020335
    Abstract: A temperature detecting circuit comprising: a comparator, comprising a first comparing terminal and a second comparing terminal; a time interval computing unit; a switch module, coupled to the first comparing terminal and the second comparing terminal, comprising a reference voltage terminal coupled to a reference voltage source, and comprising a first input terminal, a second input terminal and a third input terminal; a first current source, comprising a first charging terminal coupled to the first input terminal and the second input terminal; a first capacitor, coupled to the first current source at the first charging terminal; a capacitance adjusting unit, coupled to the first capacitor; a second current source, comprising a second charging terminal coupled to the third input terminal, wherein the second current source is a current source which provides a constant current; and a second capacitor, coupled to the second current source at the second charging terminal.
    Type: Application
    Filed: September 19, 2018
    Publication date: January 17, 2019
    Inventors: Wooi Kip LIM, Yong Yeap Tan
  • Voltage comparing circuit and voltage comparing method
    Patent number: 10116295
    Abstract: A voltage comparing circuit comprising: a comparator,; a time interval computing unit; a switch module,; a first current source, comprising a first charging terminal; a first capacitor, coupled to the first current source at the first charging terminal; and a capacitance adjusting unit, coupled to the first capacitor. In a first calibration mode, the first comparing terminal receives a reference voltage.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 30, 2018
    Assignee: PixArt Imaging Inc.
    Inventors: Wooi Kip Lim, Yong Yeap Tan
  • VOLTAGE COMPARING CIRCUIT AND VOLTAGE COMPARING METHOD
    Publication number: 20180062630
    Abstract: A voltage comparing circuit comprising: a comparator,; a time interval computing unit; a switch module,; a first current source, comprising a first charging terminal; a first capacitor, coupled to the first current source at the first charging terminal; and a capacitance adjusting unit, coupled to the first capacitor. In a first calibration mode, the first comparing terminal receives a reference voltage.
    Type: Application
    Filed: August 30, 2016
    Publication date: March 1, 2018
    Inventors: Wooi Kip LIM, Yong Yeap Tan