Patents by Inventor Nazir Haroon Ahmad

Nazir Haroon Ahmad 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).

  • Fault tolerant sleep mode of operation
    Patent number: 7107487
    Abstract: A method, system and computer program product for implementing a fault tolerant sleep mode of operation. The system state information may be stored in a volatile memory and in a non-volatile storage unit prior to entering the sleep mode of operation. If a memory corruption event, e.g., power outage, brownout, power surge, occurs during the sleep mode of operation, then, upon receiving an invocation to resume to a normal mode of operation, the system state information stored in the non-volatile storage unit may be reloaded into the volatile memory. By reloading the system state information stored in the non-volatile storage into the volatile memory, the computer system may resume to a normal mode of operation from a sleep mode of operation without any corruption or loss of data.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: September 12, 2006
    Assignee: Lenovo (Singapore) Pte Ltd.
    Inventors: Nazir Haroon Ahmad, Ameha Aklilu, Jordan Hsiao Ping Chin, Richard Alan Dayan, James Patrick Hoff, Eric Richard Kern
  • Fault tolerant sleep mode of operation
    Publication number: 20030196137
    Abstract: A method, system and computer program product for implementing a fault tolerant sleep mode of operation. The system state information may be stored in a volatile memory and in a non-volatile storage unit prior to entering the sleep mode of operation. If a memory corruption event, e.g., power outage, brownout, power surge, occurs during the sleep mode of operation, then, upon receiving an invocation to resume to a normal mode of operation, the system state information stored in the non-volatile storage unit may be reloaded into the volatile memory. By reloading the system state information stored in the non-volatile storage into the volatile memory, the computer system may resume to a normal mode of operation from a sleep mode of operation without any corruption or loss of data.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 16, 2003
    Applicant: International Business Machines Corporation
    Inventors: Nazir Haroon Ahmad, Ameha Aklilu, Jordan Hsiao Ping Chin, Richard Alan Dayan, James Patrick Hoff, Eric Richard Kern