Patents by Inventor Chuan-Chang Lee

Chuan-Chang Lee 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).

  • Publication number: 20230266781
    Abstract: The present invention provides a circuitry including a regulator and a control circuit is disclosed. The regulator is configured to receive an input signal to generate an output voltage. The control circuit is configured to select one of a first reference voltage and a second reference voltage to serve as an output reference voltage according to an output signal of the regulator, and generate a control signal according to the output reference voltage to control a voltage level of the output voltage of the regulator.
    Type: Application
    Filed: December 1, 2022
    Publication date: August 24, 2023
    Applicant: MEDIATEK INC.
    Inventors: Chih-Chien Huang, Chuan-Chang Lee
  • Patent number: 10050461
    Abstract: A charge control circuit includes an analog to digital converter (ADC) and a control unit, wherein the ADC is arranged for monitoring a temperature of a battery and converting the monitored temperature to a digital value; and the control unit is coupled to the analog to digital converter, and is arranged for determining whether to generate a control signal to adjust a charge current or a charging voltage of a battery or not according to the digital value, and the ADC and the control unit are fully hardware architectures.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: August 14, 2018
    Assignee: MediaTek Inc.
    Inventors: Kuo-Chang Lo, Chuan-Chang Lee
  • Patent number: 9997943
    Abstract: A charging system comprises an electronic device and a power adapter for charging the electronic device. The electronic device has a bi-directional communication with the power adapter; and the electronic device is arranged to send a health check command to the power adapter, and the power adapter performs a self-health check operation and reports a checking result to the electronic device. In addition, the electronic device may calculate a cable impedance, and control a compensation function of the power adapter by referring to the calculated cable impedance.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: June 12, 2018
    Assignee: MEDIATEK INC.
    Inventors: Chih-Yuan Hsu, Chuan-Chang Lee
  • Publication number: 20160233714
    Abstract: A charge control circuit includes an analog to digital converter (ADC) and a control unit, wherein the ADC is arranged for monitoring a temperature of a battery and converting the monitored temperature to a digital value; and the control unit is coupled to the analog to digital converter, and is arranged for determining whether to generate a control signal to adjust a charge current or a charging voltage of a battery or not according to the digital value, and the ADC and the control unit are fully hardware architectures.
    Type: Application
    Filed: October 26, 2015
    Publication date: August 11, 2016
    Inventors: Kuo-Chang Lo, Chuan-Chang Lee
  • Publication number: 20160172874
    Abstract: A charging system comprises an electronic device and a power adapter for charging the electronic device. The electronic device has a bi-directional communication with the power adapter; and the electronic device is arranged to send a health check command to the power adapter, and the power adapter performs a self-health check operation and reports a checking result to the electronic device. In addition, the electronic device may calculate a cable impedance, and control a compensation function of the power adapter by referring to the calculated cable impedance.
    Type: Application
    Filed: June 15, 2015
    Publication date: June 16, 2016
    Inventors: Chih-Yuan Hsu, Chuan-Chang Lee
  • Publication number: 20160049803
    Abstract: A method for controlling an adaptor to charge a battery includes: determining whether the adaptor is capable of providing a predetermined charging current for the battery; sensing an output voltage of the adaptor and an output current of the adaptor; and controlling the adaptor to adjust the output current and the output voltage according to the sensed output voltage and the sensed output current when the adaptor is not capable of providing the predetermined charging current.
    Type: Application
    Filed: July 18, 2014
    Publication date: February 18, 2016
    Inventors: Chih-Yuan Hsu, Chuan-Chang Lee
  • Publication number: 20150349650
    Abstract: A method for communicating an electronic apparatus with an adaptor via a specific communication interface includes: communicating the electronic apparatus with the adaptor by using the electronic apparatus to generate a specific information pattern on a signal port of the specific communication interface; and in response to the specific information pattern received on the signal port, the adaptor adjusting at least one operation behavior.
    Type: Application
    Filed: April 21, 2014
    Publication date: December 3, 2015
    Inventors: Chuan-Chang Lee, Chih-Yuan Hsu
  • Publication number: 20110220624
    Abstract: The present invention provides a cutting method for a cutting device to cut the peripheral isolation lines of solar panels, having the following steps: preparing a solar panel and installing an image acquisition device at the corresponding position on the solar panel; setting the image acquisition device to move along the solar panel edge and acquire the image of the solar panel edge by means of located whole acquisition or line scan, and using an image processing device to calculate the location data of the edges of the solar panel; and setting a cutting device to cut the isolation line of the solar panel according to the edge location data. The present method can accurately judge the locations of the solar panel edges through image processing algorithm to find the parts near the margins and avoid defects, so that the solar panel can have maximum efficacy and utility.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 15, 2011
    Applicant: MARKETECH INTERNATIONAL CORP.
    Inventors: Miin-Tsair SU, Sheng-Pin Wang, Jou-Chin Liao, Sheng-Chao Li, Chuan-Chang Lee