Patents by Inventor Chandrakant Patel

Chandrakant Patel 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: 10108239
    Abstract: Systems and methods for operating based on recovered waste heat are described. In one example, the method includes receiving recovered waste heat power and operating at least one system component of a recovered waste heat based computing device based on the recovered waste heat power, where the at least one system component is coupled to a non-volatile memory of the recovered waste heat based computing device. The method further includes preserving operational states of the at least one system component in the non-volatile memory based on a current power level associated with the recovered waste heat power.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: October 23, 2018
    Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
    Inventors: Chandrakant Patel, Jichuan Chang, Cullen E. Bash
  • Publication number: 20180281278
    Abstract: In one example, a device for printing a three-dimensional object is described. The device may include at least one material application unit to deposit at least one material for a voxel of the three-dimensional object, a vertical cavity surface emitting laser array comprising a plurality of vertical cavity surface emitting lasers, the plurality of vertical cavity surface emitting lasers including a first vertical cavity surface emitting laser to operate at a first wavelength and a second vertical cavity surface emitting laser to operate at a second wavelength, and a processor to control a deposition of the at least one material for the voxel via the at least one material application unit and to control an application of electromagnetic energy via at least one of the plurality of vertical cavity surface emitting lasers to the voxel to alter at least one property of the at least one material.
    Type: Application
    Filed: January 20, 2016
    Publication date: October 4, 2018
    Inventors: David George, Chandrakant Patel, Lihua Zhao, Michael Renne Ty Tan
  • Publication number: 20180120940
    Abstract: A haptic electromagnetic actuator for track pad is provided. The actuator includes an array of electromagnets with alternating South and North poles on a first end, each magnet comprising a metal core and an electrical wire around the metal core. The array of magnets is coupled to a base plate on a second end opposite to the first end. The actuator also includes an attraction plate at a distance from the first end of the array of the magnets such that the attraction plate moves toward the magnets when an electrical current flows through the electrical wire around the metal core and moves away from the magnets when the current becomes zero. The array of magnets is configured to form a uniform gap from the attraction plate.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 3, 2018
    Inventors: Patrick Kessler, Dhaval Chandrakant Patel, Jonah A. Harley, Brett W. Degner, Nicholas Alan Rundle, Peteris K. Augenbergs, Nicholaus Lubinski, Kenneth L. Staton, Omar Sze Leung
  • Patent number: 9939901
    Abstract: A haptic feedback assembly includes interconnections for mechanically and electrically securing a haptic actuator in a track pad assembly so as to securely and efficiently provide haptic feedback to a user.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: April 10, 2018
    Assignee: Apple Inc.
    Inventors: Dhaval Chandrakant Patel, Jonah A. Harley, Peteris K. Augenbergs, Derryk C. Davis, Scott J. McEuen, John M. Brock
  • Patent number: 9848513
    Abstract: According to one example of the present invention, a cooling system is provided. The cooling system comprises a water-cooled air conditioning module for cooling air from a chamber. The chamber is arranged for receiving air to be cooled and hot humid air. The cooling system also comprises a control system for controlling the flow of hot humid air to the chamber such that the air input to the air conditioning module has a predetermined relative humidity level within a predetermined range.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: December 19, 2017
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Ratnesh Kumar Sharma, Thomas W. Christian, Chandrakant Patel
  • Publication number: 20170300161
    Abstract: An optical force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer. The relative electrical response of the two force-sensitive layers may be used to compute an estimate of the force of a touch that reduces the effect of variations in temperature. In some examples, piezoelectric films having anisotropic strain properties are used to reduce the effects of temperature.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 19, 2017
    Inventors: Sinan Filiz, James E. Pedder, Charley T. Ogata, John Stephen Smith, Dhaval Chandrakant Patel, Shin John Choi, Brian Q. Huppi, Christopher J. Butler, Martin P. Grunthaner
  • Patent number: 9772688
    Abstract: A haptic feedback assembly includes interconnections for mechanically and electrically securing a haptic actuator in a track pad assembly so as to securely and efficiently provide haptic feedback to a user.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: September 26, 2017
    Assignee: Apple Inc.
    Inventors: Dhaval Chandrakant Patel, Jonah A. Harley, Peteris K. Augenbergs, Derryk C. Davis, Scott J. McEuen, John M. Brock
  • Publication number: 20170269757
    Abstract: An optically transparent force sensor, which may be used as input to an electronic device. The optically transparent force sensor may be configured to compensate for variations in temperature using two or more force-sensitive components that are formed from materials having different temperature- and strain-dependent responses.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 21, 2017
    Inventors: Sinan Filiz, James E. Pedder, Charley T. Ogata, John Stephen Smith, Dhaval Chandrakant Patel, Shin John Choi, Brian Q. Huppi, Christopher J. Butler, Martin P. Grunthaner
  • Patent number: 9690413
    Abstract: An optically transparent force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer. The relative electrical response of the two force-sensitive layers may be used to compute an estimate of the force of a touch that reduces the effect of variations in temperature. In some examples, piezoelectric films having anisotropic strain properties are used to reduce the effects of temperature.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: June 27, 2017
    Assignee: Apple Inc.
    Inventors: Sinan Filiz, James E. Pedder, Charley T. Ogata, John Stephen Smith, Dhaval Chandrakant Patel, Shin John Choi, Brian Q. Huppi, Christopher J. Butler, Martin P. Grunthaner
  • Patent number: 9665200
    Abstract: An optically transparent force sensor, which may be used as input to an electronic device. The optically transparent force sensor may be configured to compensate for variations in temperature using two or more force-sensitive components that are formed from materials having different temperature- and strain-dependent responses.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: May 30, 2017
    Assignee: Apple Inc.
    Inventors: Sinan Filiz, James E. Pedder, Charley T. Ogata, John Stephen Smith, Dhaval Chandrakant Patel, Shin John Choi, Brian Q. Huppi, Christopher J. Butler, Martin P. Grunthaner
  • Patent number: 9542028
    Abstract: An optically transparent force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer. The relative electrical response of the two force-sensitive layers may be used to compute an estimate of the force of a touch that reduces the effect of variations in temperature. In some examples, piezoelectric films having anisotropic strain properties are used to reduce the effects of temperature.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: January 10, 2017
    Assignee: Apple Inc.
    Inventors: Sinan Filiz, James E. Pedder, Charley T. Ogata, John Stephen Smith, Dhaval Chandrakant Patel, Shin John Choi, Brian Q. Huppi, Christopher J. Butler, Martin P. Grunthaner
  • Publication number: 20160349816
    Abstract: Systems and methods for operating based on recovered waste heat are described. In one example, the method includes receiving recovered waste heat power and operating at least one system component of a recovered waste heat based computing device based on the recovered waste heat power, where the at least one system component is coupled to a non-volatile memory of the recovered waste heat based computing device. The method further includes preserving operational states of the at least one system component in the non-volatile memory based on a current power level associated with the recovered waste heat power.
    Type: Application
    Filed: January 31, 2014
    Publication date: December 1, 2016
    Inventors: Chandrakant PATEL, Jichuan CHANG, Cullen E. BASH
  • Patent number: 9493957
    Abstract: A plank (10) used to construct a platform such as a catwalk (C3, C4) extending about the exterior or interior of a building (B) includes first and second generally horizontal sections (12, 22). The second generally horizontal section of the plank extends from one side of the first section. During construction of the platform, the first section of one plank overlaps the second section of an adjacent plank. A third generally vertical section (52) of the plank extends generally perpendicularly from one side of the second section and includes lips (58, 60) at its inner and outer ends for attaching the plank to toe boards (40, 44) to secure the plank to the frames. When installed, the planks extend from a side of the building. The resulting catwalk extends either in a straight line, or is curved, depending upon the amount of overlap the first and second sections of the respective planks.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: November 15, 2016
    Assignee: The GSI Group LLC
    Inventors: Paul Kent Miller, Chirag Chandrakant Patel, Arron Justin Cochran, Robb Glenn Williams, Satheesh Kumar Somu
  • Publication number: 20160306423
    Abstract: Disclosed herein are methods and systems for providing haptic output on an electronic device. In some embodiments, the electronic device includes an actuator configured to move in a first direction. The electronic device also includes a substrate coupled to the actuator. When the actuator moves in the first direction, the substrate or a portion of the substrate, by virtue of being coupled to the actuator, moves in a second direction. In some implementations, the movement of the substrate is perpendicular to the movement of the actuator.
    Type: Application
    Filed: April 14, 2016
    Publication date: October 20, 2016
    Inventors: Erik A. Uttermann, Kevin D. Gibbs, Dhaval Chandrakant Patel, Florence W. Ow, Derek W. Wright, Stephen R. McClure, Inna Lobel
  • Patent number: 9459129
    Abstract: Determining sensor placement in distributed networks includes identifying measurement locations in a distributed network with a tree topology and selecting a subset of the measurement locations for sensor placement with a mutual information function.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: October 4, 2016
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Gowtham Bellala, Manish Marwah, Martin Arlitt, Geoff M. Lyon, Cullen E. Bash, Chandrakant Patel
  • Publication number: 20160162030
    Abstract: A haptic feedback assembly includes interconnections for mechanically and electrically securing a haptic actuator in a track pad assembly so as to securely and efficiently provide haptic feedback to a user.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 9, 2016
    Inventors: Dhaval Chandrakant Patel, Jonah A. Harley, Peteris K. Augenbergs, Derryk C. Davis, Scott J. McEuen, John M. Brock
  • Publication number: 20160147353
    Abstract: An optically transparent force sensor element is compensated for effects of environment by comparing a force reading from a first force-sensitive component with a second force-sensitive components. The first and second force-sensitive components disposed on opposite sides of a flexible substrate within a display stack.
    Type: Application
    Filed: June 3, 2015
    Publication date: May 26, 2016
    Inventors: Sinan Filiz, James E. Pedder, Charley T. Ogata, John Stephen Smith, Dhaval Chandrakant Patel, Shin John Choi, Brian Q. Huppi, Christopher J. Butler, Martin P. Grunthaner
  • Publication number: 20160147352
    Abstract: An optically transparent force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer. The relative electrical response of the two force-sensitive layers may be used to compute an estimate of the force of a touch that reduces the effect of variations in temperature. In some examples, piezoelectric films having anisotropic strain properties are used to reduce the effects of temperature.
    Type: Application
    Filed: June 3, 2015
    Publication date: May 26, 2016
    Inventors: Sinan Filiz, James E. Pedder, Charley T. Ogata, John Stephen Smith, Dhaval Chandrakant Patel, Shin John Choi, Brian Q. Huppi, Christopher J. Butler, Martin P. Grunthaner
  • Publication number: 20160139717
    Abstract: An optically transparent force sensor, which may be used as input to an electronic device. The optically transparent force sensor may be configured to compensate for variations in temperature using two or more force-sensitive components that are formed from materials having different temperature- and strain-dependent responses.
    Type: Application
    Filed: June 3, 2015
    Publication date: May 19, 2016
    Inventors: Sinan Filiz, James E. Pedder, Charley T. Ogata, John Stephen Smith, Dhaval Chandrakant Patel, Shin John Choi, Brian Q. Huppi, Christopher J. Butler, Martin P. Grunthaner
  • Patent number: 9322667
    Abstract: A method for detecting power consumption anomalies. The method obtains two different time power series and compares them to generate a dissimilarity matrix. A dimensionality reduction equation is applied to the dissimilarity matrix to obtain a low dimensional embedding of the power data. A probability score of each of the time series being anomalous is then calculated.
    Type: Grant
    Filed: April 28, 2012
    Date of Patent: April 26, 2016
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Manish Marwah, Gowtham Bellala, Martin Arlitt, Geoff M Lyon, Cullen E. Bash, Chandrakant Patel