Patents by Inventor George R. Santana

George R. Santana 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).

  • Adaptive system for optimizing disk drive power consumption
    Patent number: 5544138
    Abstract: A disk drive power manager that compares energy usage with a predetermined profile to select one of several reduced-power operating modes. An energy usage register is updated at regular intervals according to the energy used during each time interval. An attenuated average energy usage value is obtained by attenuating the energy usage measures over time and integrating the results. The average energy level is compared with several predetermined energy threshold profiles to select a full- or reduced-power operating mode. Operating mode selection automatically adapts to the usage pattern to optimally balance power consumption with operational accessibility.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: August 6, 1996
    Assignee: International Business Machines Corporation
    Inventors: Christopher H. Bajorek, Thomas W. Glaser, Klaas B. Klaassen, Charles R. Nielsen, George R. Santana, Gordon J. Smith, David A. Thompson, Michael L. Workman
  • Adaptive system for optimizing disk drive power consumption
    Patent number: 5521896
    Abstract: A disk drive power manager that compares energy usage with a predetermined profile to select one of several reduced-power operating modes. An energy usage register is updated at regular intervals according to the energy used during each time interval. An attenuated average energy usage value is obtained by attenuating the energy usage measures over time and integrating the results. The average energy level is compared with several predetermined energy threshold profiles to select a full- or reduced-power operating mode. Operating mode selection automatically adapts to the usage pattern to optimally balance power consumption with operational accessibility.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: May 28, 1996
    Assignee: International Business Machines Corporation
    Inventors: Christopher H. Bajorek, Thomas W. Glaser, Klaas B. Klaassen, Charles R. Nielsen, George R. Santana, Gordon J. Smith, David A. Thompson, Michael L. Workman
  • Adaptive system for optimizing disk drive power consumption
    Patent number: 5452277
    Abstract: A disk drive power manager that compares energy usage with a predetermined profile to select one of several reduced-power operating modes. An energy usage register is updated at regular intervals according to the energy used during each time interval. An attenuated average energy usage value is obtained by attenuating the energy usage measures over time and integrating the results. The average energy level is compared with several predetermined energy threshold profiles to select a full- or reduced-power operating mode. Operating mode selection automatically adapts to the usage pattern to optimally balance power consumption with operational accessibility.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: September 19, 1995
    Assignee: International Business Machines Corporation
    Inventors: Christopher H. Bajorek, Thomas W. Glaser, Klaas B. Klaassen, Charles R. Nielsen, George R. Santana, Gordon J. Smith, David A. Thompson