Patents by Inventor Liangqing ZHANG

Liangqing ZHANG 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).

  • Power saving method and apparatus for multimode terminal
    Patent number: 9877280
    Abstract: Provided are power saving methods and devices for a multimode terminal. The method includes that: state values CLK1_EN/CLK2_EN of PWRCTRL1/PWRCTRL2 are controlled and output by using a sleep mode and a wake up mode of a Digital Baseband (DBB) of the multimode terminal; outputs CLK1_OUT/CLK2_OUT of a radio frequency transceiver (RF TRX) are controlled by using CLK1/CLK2 and the CLK1_EN/CLK2_EN; and the CLK1_OUT/CLK2_OUT are sent to a System On chip (SOC)/BUS/Peripheral and a MODEM of the DBB, wherein the CLK1_OUT/CLK2_OUT serve as a high-speed clock source of the multimode terminal in a standby state and a working state. By the solution, the multimode terminal is enabled to shorten wake up time of the MODEM subsystem and prolong sleep time within a Discontinuous Reception (DRX) period, and the effect of reducing standby power consumption is further achieved.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: January 23, 2018
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO. LTD.
    Inventor: Liangqing Zhang
  • Power Saving Method and Apparatus for Multimode Terminal
    Publication number: 20160323821
    Abstract: Provided are power saving methods and devices for a multimode terminal. The method includes that: state values CLK1_EN/CLK2_EN of PWRCTRL1/PWRCTRL2 are controlled and output by using a sleep mode and a wake up mode of a Digital Baseband (DBB) of the multimode terminal; outputs CLK1_OUT/CLK2_OUT of a radio frequency transceiver (RF TRX) are controlled by using CLK1/CLK2 and the CLK1_EN/CLK2_EN; and the CLK1_OUT/CLK2_OUT are sent to a System On chip (SOC)/BUS/Peripheral and a MODEM of the DBB, wherein the CLK1_OUT/CLK2_OUT serve as a high-speed clock source of the multimode terminal in a standby state and a working state. By the solution, the multimode terminal is enabled to shorten wake up time of the MODEM subsystem and prolong sleep time within a Discontinuous Reception (DRX) period, and the effect of reducing standby power consumption is further achieved.
    Type: Application
    Filed: February 14, 2014
    Publication date: November 3, 2016
    Inventor: Liangqing ZHANG