Patents by Inventor Shaoguo Chai

Shaoguo Chai 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).

  • Self-calibration temperature control device and method
    Patent number: 9366583
    Abstract: A self-calibration temperature control method and device includes a temperature feedback and control unit, a precise temperature measurement unit, and a temperature calibration unit. The temperature feedback and control unit has a negative temperature coefficient thermistor and an analog feedback control circuit that are connected with a controlled heating element. The temperature calibration unit includes a CPU, a data latch circuit with an input end connected with the CPU through a bus, and a digital potentiometer connected with the temperature feedback and control unit, an output end of the data latch circuit being connected with the digital potentiometer through the bus.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: June 14, 2016
    Assignee: EDAN INSTRUMENTS INC.
    Inventors: Xiaofei Xiang, Zhixiang Zhao, Shaoguo Chai
  • SELF-CALIBRATION TEMPERATURE CONTROL DEVICE AND METHOD
    Publication number: 20150083708
    Abstract: A self-calibration temperature control method and device includes a temperature feedback and control unit, a precise temperature measurement unit, and a temperature calibration unit. The temperature feedback and control unit has a negative temperature coefficient thermistor and an analog feedback control circuit that are connected with a controlled heating element. The temperature calibration unit includes a CPU, a data latch circuit with an input end connected with the CPU through a bus, and a digital potentiometer connected with the temperature feedback and control unit, an output end of the data latch circuit being connected with the digital potentiometer through the bus.
    Type: Application
    Filed: June 19, 2012
    Publication date: March 26, 2015
    Applicant: EDAN INSTRUMENTS, INC.
    Inventors: Xiaofei Xiang, Zhixiang Zhao, Shaoguo Chai