Patents by Inventor Harold W. Chase

Harold W. Chase 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).

  • Patent number: 8635478
    Abstract: During manufacture, an operating range for dynamic voltage and frequency scaling can be established. A nominal operating point is identified based on a design nominal operating frequency for a computer processor. The nominal operating point comprises a nominal operating voltage identified for the design nominal operating frequency. In dependence upon the nominal operating point, an operating range of frequency and voltage over which the computer processor is to function is determined. Information specifying the nominal operating point and the operating range is stored in non-volatile storage associated with the computer processor.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 21, 2014
    Assignee: International Business Machines Corporation
    Inventors: Harold W. Chase, Joshua D. Friedrich, Andrew J. Geissler, Soraya Ghiasi, Norman K. James, Jagat V. Pokala, Malcolm S. Ware
  • Publication number: 20120198255
    Abstract: During manufacture, an operating range for dynamic voltage and frequency scaling can be established. A nominal operating point is identified based on a design nominal operating frequency for a computer processor. The nominal operating point comprises a nominal operating voltage identified for the design nominal operating frequency. In dependence upon the nominal operating point, an operating range of frequency and voltage over which the computer processor is to function is determined. Information specifying the nominal operating point and the operating range is stored in non-volatile storage associated with the computer processor.
    Type: Application
    Filed: December 29, 2011
    Publication date: August 2, 2012
    Applicant: International Business Machines Corporation
    Inventors: Harold W. Chase, Joshua D. Friedrich, Andrew J. Geissler, Soraya Ghiasi, Norman K. James, Jagat V. Pokala, Malcolm S. Ware
  • Patent number: 8055477
    Abstract: A benchmark tester retrieves a voltage margin that corresponds to a device that a system includes. The voltage margin indicates an additional amount of voltage to apply to a nominal voltage that, when added, results in the device operating at a power limit while executing a worst-case power workload. Next, the benchmark tester (or thermal power management device) sets an input voltage for the device to a value equal to the sum of the voltage margin and the nominal voltage. The benchmark tester then dynamically benchmark tests the system, which includes adjusting the device's frequency and input voltage while ensuring that the device does not exceed the device's power limit. In turn, the benchmark tester records a guaranteed minimum performance boost for the system based upon a result of the benchmark testing.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: November 8, 2011
    Assignee: International Business Machines Corporation
    Inventors: Harold W. Chase, Soraya Ghiasi, Michael Stephen Floyd, Joshua David Friedrich, Steven Paul Hartman, Norman Karl James, Malcolm Scott Ware, Richard L. Willaman
  • Publication number: 20100125436
    Abstract: A benchmark tester retrieves a voltage margin that corresponds to a device that a system includes. The voltage margin indicates an additional amount of voltage to apply to a nominal voltage that, when added, results in the device operating at a power limit while executing a worst-case power workload. Next, the benchmark tester (or thermal power management device) sets an input voltage for the device to a value equal to the sum of the voltage margin and the nominal voltage. The benchmark tester then dynamically benchmark tests the system, which includes adjusting the device's frequency and input voltage while ensuring that the device does not exceed the device's power limit. In turn, the benchmark tester records a guaranteed minimum performance boost for the system based upon a result of the benchmark testing.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 20, 2010
    Applicant: International Business Machines Corporation
    Inventors: Harold W. Chase, Soraya Ghiasi, Michael Stephen Floyd, Joshua David Friedrich, Steven Paul Hartman, Norman Karl James, Malcolm Scott Ware, Richard L. Willaman
  • Publication number: 20100094572
    Abstract: Methods, apparatus, and computer program products are described for dynamic frequency and voltage scaling for a computer processor, including identifying during manufacture a nominal operating point of frequency and voltage for a computer processor, the nominal operating point including a nominal operating voltage identified for a design nominal operating frequency; determining, in dependence upon the nominal operating point, an operating range of frequency and voltage over which the computer processor is to function; and storing, in non-volatile storage on the computer processor during manufacture, information specifying the nominal operating point and the operating range.
    Type: Application
    Filed: October 15, 2008
    Publication date: April 15, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Harold W. Chase, Joshua D. Friedrich, Soraya Ghiasi, Norman K. James, Jagat V. Pokala
  • Patent number: 7114136
    Abstract: A method for characterizing circuit activity in an IC. Generally, the method comprises the steps of activating an IC, resolving the switching activity in space and time, and generating a representation of the switching behavior which differentiates the time that circuits or transistors switch. One embodiment of the invention, utilizes a method such as, but not limited to, time resolved photon emission to observe transistor level switching activity in an integrated circuit (IC).
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: September 26, 2006
    Assignee: International Business Machines Corporation
    Inventors: Harold W. Chase, Daniel R. Knebel, Dennis G. Menzer, Stanislav Polonsky, Pia N. Sanda