Patents by Inventor Umair B. Cheema

Umair B. Cheema 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).

  • Calibrating power supply voltages using reference measurements from code loop executions
    Patent number: 10060955
    Abstract: A processing system includes one or more power supply monitors (PSMs) to measure one or more first voltages corresponding to one or more locations in the processing system. The measurements are performed concurrently with the processing system executing one or more code loops. The processing system also includes calibration logic to modify a second voltage provided to the processing system based on a comparison of a reference voltage and the one or more first voltages. The reference voltage is determined based on previous execution of the one or more code loops by the processing system.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: August 28, 2018
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Aaron J. Grenat, Robert A. Hershberger, Sriram Sambamurthy, Samuel D. Naffziger, Christopher E. Tressler, Sho-Chien Kang, Joseph P. Shannon, Krishna Sai Bernucho, Ashwin Chincholi, Michael J. Austin, Steven F. Liepe, Umair B. Cheema
  • CALIBRATING A POWER SUPPLY USING POWER SUPPLY MONITORS
    Publication number: 20150378411
    Abstract: A processing system includes one or more power supply monitors (PSMs) to measure one or more first voltages corresponding to one or more locations in the processing system. The measurements are performed concurrently with the processing system executing one or more code loops. The processing system also includes calibration logic to modify a second voltage provided to the processing system based on a comparison of a reference voltage and the one or more first voltages. The reference voltage is determined based on previous execution of the one or more code loops by the processing system.
    Type: Application
    Filed: June 25, 2014
    Publication date: December 31, 2015
    Inventors: Aaron J. Grenat, Robert A. Hershberger, Sriram Sambamurthy, Samuel D. Naffziger, Christopher E. Tressler, Sho-Chien Kang, Joseph P. Shannon, Krishna Sai Bernucho, Ashwin Chincholi, Michael J. Austin, Steven F. Liepe, Umair B. Cheema
  • Voltage regulator dynamically determining whether requested power transition can be supported
    Patent number: 9213381
    Abstract: A method of controlling voltage in a circuit is provided. Within the circuit, a block of an electrical component provides an indication that it desires to switch states (such as from off to on, on to off, or from one speed to another). The change in states requires a different current draw by the electrical component block. The indication is received by an electrical component that controls the voltage of the circuit. The electrical component that controls the voltage then issues a signal granting permission for the electrical component block to switch states. This permission signal is received by the electrical component and the electrical component block changes state.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: December 15, 2015
    Assignees: ATI Technologies ULC, Advanced Micro Devices, Inc.
    Inventors: Michael J. Osborn, Sebastien Nussbaum, John P. Petry, Umair B. Cheema
  • Voltage adjustment based on load line and power estimates
    Patent number: 9021276
    Abstract: A method and device for setting a processor performance profile for a processor that is unable to directly measure voltage supplied by a voltage regulator includes determining a voltage requested of the voltage regulator and determining a first characteristic of a first portion of the electrical component. The first characteristic is one of power consumed by the first portion of the electrical component and load presented by the first portion of the electrical component. A first current is then determined by using the first voltage, the first characteristic, and a known relationship therebetween. A third voltage that is an estimate of the voltage supplied by the voltage regulator is then determined by comparing the first current to load line characteristics of the electrical component. The third voltage is then used to manage performance of the processor.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: April 28, 2015
    Assignee: ATI Technologies ULC
    Inventors: Michael J. Osborn, Sebastien Nussbaum, John P. Petry, Umair B. Cheema
  • DYNAMIC LOAD STEP CALCULATION FOR LOAD LINE ADJUSTMENT
    Publication number: 20130318372
    Abstract: A method of controlling voltage in a circuit is provided. Within the circuit, a block of an electrical component provides an indication that it desires to switch states (such as from off to on, on to off, or from one speed to another). The change in states requires a different current draw by the electrical component block. The indication is received by an electrical component that controls the voltage of the circuit. The electrical component that controls the voltage then issues a signal granting permission for the electrical component block to switch states. This permission signal is received by the electrical component and the electrical component block changes state.
    Type: Application
    Filed: May 24, 2012
    Publication date: November 28, 2013
    Applicant: Advanced Micro Devices, Inc.
    Inventors: Michael J. Osborn, Sebastien Nussbaum, John P. Petry, Umair B. Cheema
  • VOLTAGE ADJUSTMENT BASED ON LOAD LINE AND POWER ESTIMATES
    Publication number: 20130297950
    Abstract: A method and system for determining voltage supplied to a processor from a voltage regulator when the voltage cannot be directly measured.
    Type: Application
    Filed: May 7, 2012
    Publication date: November 7, 2013
    Applicant: Advanced Micro Devices, Inc.,
    Inventors: Michael J. Osborn, Sebastien Nussbaum, John P. Petry, Umair B. Cheema