Patents by Inventor Xiaojin GUAN

Xiaojin GUAN 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).

  • Word-line voltage regulating circuit and single power supply memory
    Patent number: 8659971
    Abstract: A word-line voltage regulating circuit and a single power supply memory are disclosed. The word-line voltage regulating circuit includes: a charge pump for raising an input voltage to a desired value and outputting the raised input voltage as an output voltage; a controller for inputting a refresh signal to the charge pump according to the output voltage of the charge pump; and a comparator for inputting a feedback signal to the charge pump according to a comparison result between the output voltage of the charge pump and a reference voltage. The charge pump works under control of the refresh signal when the memory is in an active mode, and works under control of the feedback signal when the memory is in a standby mode. The word-line voltage regulating circuit can effectively reduce the power consumption and can meet the requirement for proportional scale-down of integrated circuits.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: February 25, 2014
    Assignee: Grace Semiconductor Manufacturing Corporation
    Inventors: Lei Wang, Yi Xu, Xiaojin Guan
  • WORD-LINE VOLTAGE REGULATING CIRCUIT AND SINGLE POWER SUPPLY MEMORY
    Publication number: 20130010536
    Abstract: A word-line voltage regulating circuit and a single power supply memory are disclosed. The word-line voltage regulating circuit includes: a charge pump for raising an input voltage to a desired value and outputting the raised input voltage as an output voltage; a controller for inputting a refresh signal to the charge pump according to the output voltage of the charge pump; and a comparator for inputting a feedback signal to the charge pump according to a comparison result between the output voltage of the charge pump and a reference voltage. The charge pump works under control of the refresh signal when the memory is in an active mode, and works under control of the feedback signal when the memory is in a standby mode. The word-line voltage regulating circuit can effectively reduce the power consumption and can meet the requirement for proportional scale-down of integrated circuits.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Applicant: Grace Semiconductor Manufacturing Corporation
    Inventors: Lei WANG, Yi XU, Xiaojin GUAN