Patents by Inventor Kwanghoi Koo

Kwanghoi Koo 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).

  • Method and apparatus for changing a digital processing system power consumption state by sensing peripheral power consumption
    Patent number: 7574614
    Abstract: A method and apparatus senses peripheral power consumption for system power control. In a digital processing system, an increase in current drawn by a peripheral device coupled to the digital processing system while the digital processing system is in a reduced power consumption state is sensed, wherein the increase in current drawn provides a current draw detect signal.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: August 11, 2009
    Assignee: Apple Inc.
    Inventor: Kwanghoi Koo
  • Method and apparatus for system power control through sensing peripheral power consumption
    Publication number: 20060136759
    Abstract: A method and apparatus senses peripheral power consumption for system power control. In a digital processing system, an increase in current drawn by a peripheral device coupled to the digital processing system while the digital processing system is in a reduced power consumption state is sensed, wherein the increase in current drawn provides a current draw detect signal.
    Type: Application
    Filed: November 22, 2005
    Publication date: June 22, 2006
    Inventor: Kwanghoi Koo
  • Method and apparatus for changing a digital processing system power consumption state by sensing peripheral power consumption
    Patent number: 6981161
    Abstract: A method and apparatus senses peripheral power consumption for system power control. In a digital processing system, an increase in current drawn by a peripheral device coupled to the digital processing system while the digital processing system is in a reduced power consumption state is sensed, wherein the increase in current drawn provides a current draw detect signal.
    Type: Grant
    Filed: September 12, 2001
    Date of Patent: December 27, 2005
    Assignee: Apple Computer, Inc.
    Inventor: Kwanghoi Koo
  • Method and apparatus for system power control through sensing peripheral power consumption
    Publication number: 20030051177
    Abstract: A method and apparatus senses peripheral power consumption for system power control. In a digital processing system, an increase in current drawn by a peripheral device coupled to the digital processing system while the digital processing system is in a reduced power consumption state is sensed, wherein the increase in current drawn provides a current draw detect signal.
    Type: Application
    Filed: September 12, 2001
    Publication date: March 13, 2003
    Inventor: Kwanghoi Koo