Patents by Inventor Chang-Ching Peng

Chang-Ching Peng 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 circuitry and method of CPU
    Patent number: 7516341
    Abstract: A power-saving circuitry of CPU is provided. The power-saving circuitry comprises a switching transistor having a first source/drain electrode being grounded, a second source/drain electrode being electrically coupled to a DC power, and a gate electrode being electrically coupled to the CPU. When the CPU is under a normal operation mode, the switching transistor is turned on. When the CPU is under a power-saving mode (such as a C3 state), the switching transistor is turned off. In addition, the present invention further comprises a diode. Wherein, an anode of the diode is electrically coupled to the second source/drain electrode of the switching transistor, and a cathode of the diode is electrically coupled to a highest bit code of the voltage identification code of the CPU, so as to output the highest bit code of the voltage identification code of the CPU.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: April 7, 2009
    Assignee: Mitac Technology Corp.
    Inventor: Chang-Ching Peng
  • POWER-SAVING CIRCUITRY AND METHOD OF CPU
    Publication number: 20060069937
    Abstract: A power-saving circuitry of CPU is provided. The power-saving circuitry comprises a switching transistor having a first source/drain electrode being grounded, a second source/drain electrode being electrically coupled to a DC power, and a gate electrode being electrically coupled to the CPU. When the CPU is under a normal operation mode, the switching transistor is turned on. When the CPU is under a power-saving mode (such as a C3 state), the switching transistor is turned off. In addition, the present invention further comprises a diode. Wherein, an anode of the diode is electrically coupled to the second source/drain electrode of the switching transistor, and a cathode of the diode is electrically coupled to a highest bit code of the voltage identification code of the CPU, so as to output the highest bit code of the voltage identification code of the CPU.
    Type: Application
    Filed: June 14, 2005
    Publication date: March 30, 2006
    Inventor: Chang-Ching Peng