Patents by Inventor Mohan Chandra

Mohan Chandra 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: 11182924
    Abstract: A system for estimating a three dimensional pose and determining one or more biomechanical performance parameters of at least one person in a scene is disclosed herein. The system includes at least one camera and at least one measurement assembly, the at least one camera configured to capture an image of the scene; and a data processor including at least one hardware component, the data processor configured to execute computer executable instructions. The computer executable instructions comprising instructions for: (i) receiving the image of the scene from the at least one camera; (ii) extracting features from the image of the scene for providing inputs to a convolutional neural network; (iii) generating one or more volumetric heatmaps using the convolutional neural network; and (iv) applying a maximization function to the one or more volumetric heatmaps to obtain a three dimensional pose of the at least one person in the scene.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: November 23, 2021
    Assignee: Bertec Corporation
    Inventors: Emre Akbas, Batuhan Karagoz, Necip Berme, Cameron Scott Hobson, Mohan Chandra Baro
  • Patent number: 11052288
    Abstract: A force measurement system is disclosed herein. The force measurement system includes a force measurement assembly configured to receive a subject thereon, and one or more data processing devices operatively coupled to the force measurement assembly. In one or more embodiments, the one or more data processing devices are operatively coupled to the force measurement assembly, the one or more data processing devices configured to receive one or more signals that are representative of forces and/or moments being applied to a top surface of the force measurement assembly by the subject, and to convert the one or more signals into output forces and/or moments, the one or more data processing devices further configured to predict one or more balance parameters of the subject using a trained neural network.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: July 6, 2021
    Assignee: Bertec Corporation
    Inventors: Necip Berme, Jaswandi Tushar Pitale, Cameron Scott Hobson, Mohan Chandra Baro, Fernando Vanderlinde dos Santos
  • Patent number: 10765936
    Abstract: A force measurement system is disclosed herein. In one embodiment, the system includes a force measurement assembly configured to receive a subject; a data processing device operatively coupled to the force measurement assembly, the data processing device configured to determine a center of pressure for the subject using output forces and/or moments from the force measurement assembly; and a mobile device configured to determine one or more parameters indicative of the body sway for the subject. In this embodiment, a fall risk of the subject is assessed based upon a combination of the center of pressure and the one or more parameters indicative of the body sway determined for the subject.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: September 8, 2020
    Assignee: Bertec Limited
    Inventors: Necip Berme, Sasan Ghassab, Mohan Chandra Baro
  • Patent number: 10646153
    Abstract: A force measurement system is disclosed herein. The force measurement system includes a force measurement assembly configured to receive a subject thereon, and one or more data processing devices operatively coupled to the force measurement assembly. In one or more embodiments, the one or more data processing devices are configured to receive one or more signals that are representative of forces and/or moments being applied to the top surface of the force measurement assembly by the subject, and to convert the one or more signals into output forces and/or moments, and the one or more data processing devices are further configured to determine a type of balance strategy that the subject is using to maintain his or her balance on the force measurement assembly.
    Type: Grant
    Filed: September 14, 2019
    Date of Patent: May 12, 2020
    Assignee: Bertec Corporation
    Inventors: Necip Berme, Jaswandi Tushar Pitale, Mohan Chandra Baro
  • Publication number: 20200139229
    Abstract: A force measurement system is disclosed herein. In one embodiment, the system includes a force measurement assembly configured to receive a subject; a data processing device operatively coupled to the force measurement assembly, the data processing device configured to determine a center of pressure for the subject using output forces and/or moments from the force measurement assembly; and a mobile device configured to determine one or more parameters indicative of the body sway for the subject. In this embodiment, a fall risk of the subject is assessed based upon a combination of the center of pressure and the one or more parameters indicative of the body sway determined for the subject.
    Type: Application
    Filed: January 6, 2020
    Publication date: May 7, 2020
    Inventors: Necip Berme, Sasan Ghassab, Mohan Chandra Baro
  • Patent number: 10164873
    Abstract: Systems and methods utilize an all-or-none switchover to prevent split-brain problems in a Multi-Chassis Link Aggregation Group (MC-LAG) network. A standby node in the MC-LAG network can perform the steps of remaining in a standby state responsive to a loss of adjacency with an active node, wherein, in the standby state, all standby links between the standby node and a common endpoint are non-distributing; monitoring frames transmitted by the common endpoint to the standby node over the standby links; and determining based on the monitoring frames whether all active links between the active node and the common endpoint have failed and entering an active state with all the standby links distributing based thereon.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: December 25, 2018
    Assignee: Ciena Corporation
    Inventors: Ankit Sood, Hossein Baheri, Leela Sankar Gudimetla, Vijay Mohan Chandra Mohan, Wei-Chiuan Chen
  • Publication number: 20180351855
    Abstract: Systems and methods utilize an all-or-none switchover to prevent split-brain problems in a Multi-Chassis Link Aggregation Group (MC-LAG) network. A standby node in the MC-LAG network can perform the steps of remaining in a standby state responsive to a loss of adjacency with an active node, wherein, in the standby state, all standby links between the standby node and a common endpoint are non-distributing; monitoring frames transmitted by the common endpoint to the standby node over the standby links; and determining based on the monitoring frames whether all active links between the active node and the common endpoint have failed and entering an active state with all the standby links distributing based thereon.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 6, 2018
    Inventors: Ankit SOOD, Hossein BAHERI, Leela Sankar GUDIMETLA, Vijay Mohan CHANDRA MOHAN, Wei-Chiuan CHEN
  • Publication number: 20100080902
    Abstract: A novel low cost polysilicon production technique for Siemens type reactors is disclosed. In one embodiment, a CVD reactor assembly includes a reactor forming a stainless steel envelope attached to a base plate. The stainless steel envelope is designed to receive a thermal fluid at room temperature and maintain a reactor wall temperature up to 450° C. A steam generator is configured to receive the thermal fluid having a temperature up to 450° C. from the reactor and generate a low pressure steam around 350° C. to 450° C. A low pressure steam turbine/generator is configured to receive the low pressure steam and generate electricity. In another embodiment, the steam generator is configured to receive heat from an external source in addition to the thermal fluid to generate super heated steam. A conventional steam turbine/generator receives the super heated steam and generates electricity.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Inventors: FARID ARIFUDDIN, Mohan Chandra, Sankaran Muthukrishnan
  • Publication number: 20090191336
    Abstract: A simplified startup CVD technique for Siemens type of reactors is disclosed. In one embodiment, a method for production of bulk polysilicon in a CVD reactor assembly includes evacuating stainless steel envelope to have substantially low oxygen content, applying radiant heat (e.g., using a heating element coated with silicon) to the stainless steel enclosure sufficient for raising silicon rods to a firing temperature, flowing process gas (H2) ladened with a silicon reactant material via a process gas inlet and outlet port, applying sufficient current using low-voltage power supply until the silicon rods reach a deposition temperature of the process gas and upon the silicon reactant material reaching the firing temperature, turning off the radiant heat upon reaching the firing temperature, flowing gaseous byproducts of the CVD process out through the process gas outlet port, and removing as a bulk polysilicon product from the stainless steel enclosure.
    Type: Application
    Filed: January 30, 2008
    Publication date: July 30, 2009
    Inventors: Mohan Chandra, Sankaran Muthukrishnan
  • Patent number: 7175685
    Abstract: A bulk silicon material for making silicon ingots, consisting of silicon pellets, and a method for making the pellets from an agglomerate-free source of high purity silicon powder by feeding a controlled amount of silicon powder that is free of intentional additives and binders into a pellet die, and dry compacting the powder at ambient temperature with pressure to produce a pellet that has a density of about 50–75% of the theoretical density of elemental silicon, a weight within a range of about 1.0 gram to about 3.0 grams and preferably of about 2.3 grams, a diameter in the range of 10 mm to 20 mm and preferably of about 14 mm, and a height in the range of 5 mm to 15 mm and preferably of about 10 mm.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: February 13, 2007
    Assignee: GT Solar Incorporated
    Inventors: Alleppey V Hariharan, Mohan Chandra, Kedar P Gupta
  • Publication number: 20070014682
    Abstract: This invention describes methods of compacting and densifying high purity silicon powder to defined geometric forms and shapes. High purity silicon powder is first mixed with binder from a select group of binders and pressed into desired shapes in a mechanical equipment. The binder is removed either in a separate step or combined with a subsequent sintering operation. The binders and process conditions are chosen to make negligible change to the purity of the silicon in the end product. When high purity silicon powder is utilized in the process, the end use for the densified silicon compacts is primarily as feedstock for silicon-based photovoltaic manufacturing industries.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 18, 2007
    Inventors: Alleppey Hariharan, Mohan Chandra, Jagannathan Ravi
  • Publication number: 20040187767
    Abstract: A method for making ingots, and devices for making ingots are provided. Crucibles are provided that are reusable for forming multicrystalline silicon ingots. Crucibles are provided with features such as multiple components, coefficients of thermal expansion, and coatings that enhance a release of the ingots from the crucibles after cooling. Coatings on crucibles are provided that reduce or eliminate contamination of silicon ingots during formation. Methods of forming composite wafers are provided that produce a low cost wafer without sacrificing performance.
    Type: Application
    Filed: October 24, 2003
    Publication date: September 30, 2004
    Applicant: Intel Corporation
    Inventors: Mohan Chandra, Bernard D. Jones, P. Santhana Raghavan, Carl Chartier, Alleppey V. Hariharan, Tom McGee, Dean C. Skelton
  • Patent number: 6651014
    Abstract: An apparatus for the automated measurement and recording of the electrical resistivity of a semiconductor boule or ingot using the method of four probes has a four point boule support grid is provided adjacent to the home position of a four tip probe which is equipped with three axis linear mobility, rotational capability, and computer control, to provide automated mapping and testing of an “as grown” or ground semiconductor boule with cropped ends, for obtaining and recording resistivity data.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: November 18, 2003
    Assignee: G.T. Equipment Technologies, Inc
    Inventors: Mohan Chandra, David M. Darling, L. Dolan Roman, Carl P. Chartier, Glen Alan Burgess
  • Patent number: 6620645
    Abstract: A method for fabricating multi-cell solar devices using thermal spray deposition techniques to spray metal powder directly on solar cells and on the backing upon which solar cells are assembled, to form collection grid lines, bus bars, electrodes and interconnections between solar cells.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: September 16, 2003
    Assignee: G.T. Equipment Technologies, Inc
    Inventors: Mohan Chandra, Yuepeng Wan, Alleppey V. Hariharan, Jonathan A. Talbott
  • Patent number: 6612317
    Abstract: A continuous flow, steady state fluid delivery and recovery system for a process chamber and processes requiring supercritical fluid and desired additives including co-solvents, for conducting repetitive batch processing operations in an automated environment, for such processes as supercritical carbon dioxide cleaning and processing of semiconductor wafers. The system provides for steady-state operation of fluid flow and byproducts recovery while the process chamber is brought rapidly and repeatedly on and off line as in batch operations and for various process steps.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: September 2, 2003
    Assignee: S.C. Fluids, INC
    Inventors: Michael A. Costantini, Mohan Chandra, Heiko D. Moritz, Ijaz H. Jafri, David J. Mount, Rick M. Heathwaite
  • Patent number: 6602349
    Abstract: A dry process for the cleaning of precision surfaces such as of semiconductor wafers, by using process materials such as carbon dioxide and useful additives such as cosolvents and surfactants, where the process materials are applied exclusively in gaseous and supercritical states. Soak and agitation steps are applied to the wafer, including a rapid decompression of the process chamber after a soak period at higher supercritical pressure, to mechanically weaken break up the polymers and other materials sought to be removed, combined with a supercritical fluid flush to carry away the loose debris.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: August 5, 2003
    Assignee: S.C. Fluids, Inc.
    Inventors: Mohan Chandra, David J. Mount, Michael A. Costantini, Heiko D. Moritz, Ijaz Jafri, Jim Boyd, Rick M. Heathwaite
  • Patent number: 6581415
    Abstract: A method for producing formed semiconductor articles with predefined shapes such as core tubes for CVD production of bulk polysilicon. The method is characterized by thermal spray deposition of the semiconductor material in a on a temperature controlled rotating mandrel that is shaped complementarily to the desired article shape, and by later separation of the formed semiconductor body from the mandrel by thermal contraction, melting, or chemical reduction of the mandrel size.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: June 24, 2003
    Assignee: G.T. Equipment Technologies, Inc.
    Inventors: Mohan Chandra, Yuepeng Wan
  • Publication number: 20030104141
    Abstract: In one embodiment, the present invention is a method of coating at least one wafer with silicon nitride. The first step in the method is assembling at least one electrode set, wherein each electrode set includes at least one dielectric barrier between a top electrode and a bottom electrode. The second step is flowing at least one purge gas and at least one reactant at least partially between the electrodes, of at least one electrode set, substantially at atmospheric pressure. The next step in the inventive method is placing a wafer between the electrodes of at least one electrode set, wherein the wafer is substantially encompassed by the flowing gas. The last step in this embodiment of the inventive method is supplying AC power to at least one electrode set thereby causing a dielectric barrier discharge.
    Type: Application
    Filed: August 27, 2002
    Publication date: June 5, 2003
    Inventors: Carmela C. Amato-Wierda, Mohan Chandra, Keith Matthei, Alleppey V. Hariharan
  • Patent number: 6508259
    Abstract: A pressure vessel for use in production processes requiring elevating and ranging of temperatures and pressures during the process cycle, readily adaptable to production line operation, suitable for wafer processing in the semiconductor industry and for other industries and processes. The pressure vessel is configured within an open support frame with a stationary, preferably inverted, orientation. The cover or closing plate is vertically movable towards the mouth of the pressure vessel and functions as the platform by which the object under process is transferred into the vessel. The moving and locking mechanism for the cover is isolated and shielded from the process environment.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: January 21, 2003
    Assignee: S.C. Fluids, Inc.
    Inventors: James A. Tseronis, Heiko D. Mortiz, Mohan Chandra, Robert B. Farmer, Ijaz H. Jafri, Jonathan Talbott
  • Patent number: 6497239
    Abstract: An inverted pressure vessel system for conducting automated industrial processes requiring elevated pressure and temperatures has a vertically movable pedestal for opening and closing the underside loading port, with pedestal drive system and locking mechanism located below the pedestal top and isolated from the chamber opening. The chamber is connectible to a pressure control and process fluid supply system, and has heat exchangers connected to an external source for temperature control. Process fluids are distributed across a central process cavity through divergent inflow and convergent outflow process fluid channels.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: December 24, 2002
    Assignee: S. C. Fluids, Inc.
    Inventors: Robert B Farmer, Jonathan A. Talbott, Mohan Chandra, James A. Tseronis, Heiko D. Moritz