Patents by Inventor Samuel M. S. Lee

Samuel M. S. 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).

  • Method and system for controlling a cooling fan within a computer system
    Patent number: 6643128
    Abstract: A method and system of controlling a cooling fan of a computer system including a power supply unit. The method includes sensing a power load of the power supply unit. A reference air temperature of the computer system is also sensed. Finally, a fan setting is determined based upon the sensed power load and the sensed reference air temperature. By basing the fan setting on both reference temperature and actual power supply load, the method and system effectively minimizes cooling fan operation, and thus resulting acoustic noise, when a computer system is operating at less than full capacity. In one preferred embodiment, a look-up table is provided in which a plurality of fan settings are included, each fan setting being based upon a correlation of power supply load and reference temperature. The method and system of the present invention is particularly useful with high-end, server-type computer systems being used for low-end applications, and is readily applied to multiple platforms.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: November 4, 2003
    Assignee: Hewlett-Packard Development Company, LP.
    Inventors: Herman W. Chu, Eugene Chung, Robert J. Thomas, Myron R. Tuttle, Samuel M. S. Lee
  • Method and system for controlling a cooling fan within a computer system
    Publication number: 20030011984
    Abstract: A method and system of controlling a cooling fan of a computer system including a power supply unit. The method includes sensing a power load of the power supply unit. A reference air temperature of the computer system is also sensed. Finally, a fan setting is determined based upon the sensed power load and the sensed reference air temperature. By basing the fan setting on both reference temperature and actual power supply load, the method and system effectively minimizes cooling fan operation, and thus resulting acoustic noise, when a computer system is operating at less than full capacity. In one preferred embodiment, a look-up table is provided in which a plurality of fan settings are included, each fan setting being based upon a correlation of power supply load and reference temperature. The method and system of the present invention is particularly useful with high-end, server-type computer systems being used for low-end applications, and is readily applied to multiple platforms.
    Type: Application
    Filed: July 13, 2001
    Publication date: January 16, 2003
    Inventors: Herman W. Chu, Eugene Chung, Robert J. Thomas, Myron R. Tuttle, Samuel M.S. Lee