Patents by Inventor Dhruv Desai

Dhruv Desai 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).

  • Publication number: 20080097656
    Abstract: A method and system and calibration technique for power measurement and management over multiple time frames provides responsive power control while meeting global system power consumption and power dissipation limits. Power output of one or more system power supplies is measured and processed to produce power values over multiple differing time frames. The measurements from the differing time frames are used to determine whether or not system power consumption should be adjusted and then one or more devices is power-managed in response to the determination. The determination may compare a set of maximum and/or minimum thresholds to each of the measurements from the differing time frames. A calibration technique uses a precision reference resistor and voltage reference controlled current source to introduce a voltage drop from the input side of a power supply sense resistor calibration is made at the common mode voltage of the power supply output.
    Type: Application
    Filed: December 21, 2007
    Publication date: April 24, 2008
    Inventors: Dhruv Desai, Nickolas Gruendler, Carl Morrell, Gary Shippy, Michael Scollard, Michael Steinmetz, Malcolm Ware, Christopher Wood
  • Publication number: 20070294558
    Abstract: A method and system and calibration technique for power measurement and management over multiple time frames provides responsive power control while meeting global system power consumption and power dissipation limits. Power output of one or more system power supplies is measured and processed to produce power values over multiple differing time frames. The measurements from the differing time frames are used to determine whether or not system power consumption should be adjusted and then one or more devices is power-managed in response to the determination. The determination may compare a set of maximum and/or minimum thresholds to each of the measurements from the differing time frames. A calibration technique uses a precision reference resistor and voltage reference controlled current source to introduce a voltage drop from the input side of a power supply sense resistor calibration is made at the common mode voltage of the power supply output.
    Type: Application
    Filed: August 22, 2007
    Publication date: December 20, 2007
    Inventors: Dhruv Desai, Nickolas Gruendler, Carl Morrell, Gary Shippy, Michael Scollard, Michael Steinmetz, Malcolm Ware, Christopher Wood
  • Publication number: 20070150757
    Abstract: A method and system are disclosed to enable and control power reduction in a blade/chassis system. A “maximum power reduction” attribute is stored in the VPD of the blade (or can otherwise be input to or retrieved or calculated by the management entity). The management module of the chassis in which the blades and power supplies are located uses this information to manage the power reduction of blades when the system is operating in an over-subscription mode and a power supply fails. If throttling is required, the system knows the amount of power reduction available for each blade and controls the throttling by spreading it out among the blades in the system so that, ideally, no blade will cease operation altogether.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 28, 2007
    Applicant: International Business Machines Corporation
    Inventors: Alfredo Aldereguia, Brian Bigelow, Dhruv Desai, Scott Dunham, Nickolas Gruendler, William Holland, James Hughes, Randolph Kolvick, Challis Purrington, Michael Scollard, Gary Shippy
  • Publication number: 20070118771
    Abstract: A method and system are disclosed to enable and control over-subscription in a blade/chassis system and to provide the capability to recover in the event of the loss of a redundant power supply. An over-subscription policy is determined by a system administrator and is set in the chassis management module. Information regarding the maximum power allocation needed for each blade being powered by the power supply system is identified by the blade and stored in its VPD or otherwise made available to the chassis management module. The management module of the chassis in which the blades and power supplies are located uses this information to manage the subscription of blades and the over-subscription of blades when appropriate. If throttling is required, the system also allows a predetermined blade priority to be used to identify which blades will be reduced in power.
    Type: Application
    Filed: November 22, 2005
    Publication date: May 24, 2007
    Applicant: International Business Machines Corporation
    Inventors: Joseph Bolan, Thomas Brey, Dhruv Desai, Nickolas Gruendler, James Hughes, Edward Klodnicki, Sumeet Kochar, Gary Shippy
  • Publication number: 20070038996
    Abstract: A virtualized system including a processing sub-system including a plurality of partitions and operating systems and a virtualization layer, each partition running its own operating system and having assigned its own partition ID, and an I/O emulation entity connected to the processing sub-system through a bus and connected to a network to which is connected at least one computer that hosts at least one remote I/O peripheral, the I/O emulation entity being adapted to execute an I/O-emulation transaction for any of the operating systems in accordance with that operating system's partition-ID.
    Type: Application
    Filed: August 9, 2005
    Publication date: February 15, 2007
    Applicant: International Business Machines Corporation
    Inventors: Shmuel Ben-Yehuda, Dhruv Desai, Oleg Goldshmidt, Orran Krieger, Zorik Machulsky, Vadim Makhervaks, Julian Satran, Leah Shalev, Ilan Shimony
  • Publication number: 20060156042
    Abstract: A method and system and calibration technique for power measurement and management over multiple time frames provides responsive power control while meeting global system power consumption and power dissipation limits. Power output of one or more system power supplies is measured and processed to produce power values over multiple differing time frames. The measurements from the differing time frames are used to determine whether or not system power consumption should be adjusted and then one or more devices is power-managed in response to the determination. The determination may compare a set of maximum and/or minimum thresholds to each of the measurements from the differing time frames. A calibration technique uses a precision reference resistor and voltage reference controlled current source to introduce a voltage drop from the input side of a power supply sense resistor calibration is made at the common mode voltage of the power supply output.
    Type: Application
    Filed: January 11, 2005
    Publication date: July 13, 2006
    Inventors: Dhruv Desai, Nickolas Gruendler, Carl Morrell, Gary Shippy, Michael Scollard, Michael Steinmetz, Malcolm Ware, Christopher Wood
  • Publication number: 20060023671
    Abstract: A network includes a plurality of wall plates, each of the wall plates couples a network resource such as a computer or a network attached device to the network and includes an RFID circuit to detect proximate devices having an RFID tag. The proximate devices can be network attached devices or non network attached devices such as desks, phones, and artwork. Logic is included within each wall plate which includes wall plate physical location information. The logic is designed to respond to a broadcast signal. In so doing, the physical location of any resource can be determined. The physical location of all known resources are provided to an inventory application in the network, thereby allowing network administrators and users to remotely determine the physical location (room, floor, building, etc.) of any and all known resources attached to the network. Likewise, local computer users are able to identify the network resources located in their vicinity.
    Type: Application
    Filed: July 28, 2004
    Publication date: February 2, 2006
    Applicant: International Business Machines Corporation
    Inventors: Richard Cheston, Daryl Cromer, Dhruv Desai, Howard Locker, James Ward
  • Publication number: 20050132022
    Abstract: A computer system includes a local area network (LAN) and a plurality of computers. Each of the computers includes at least one central processing unit (CPU) and a LAN interface, which is coupled to communicate over the LAN, while the computers include no on-board input/output (I/O) device controllers other than the LAN interface. One or more peripheral devices are coupled to communicate with the computers over the LAN.
    Type: Application
    Filed: December 12, 2003
    Publication date: June 16, 2005
    Applicant: International Business Machines Corporation
    Inventors: Alain Azagury, Michael Rodeh, Julian Satran, Ilan Shimony, T. Smith, Dhruv Desai