Patents by Inventor Karthikeyan A.

Karthikeyan A. 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).

  • Projected Information Handling System Input Environment with Object Initiated Responses
    Publication number: 20150268739
    Abstract: Projected input and output devices adapt o a desktop environment by sensing objects at the desktop environment and altering projected light in response to the sensed objects. For instance, projection of input and output devices is altered to limit illumination against and end user's hands or other objects disposed at a projection surface. End user hand positions and motions are detected to provide gesture support for adapting a projection work space, and configurations of projected devices are stored so that an end user can rapidly recreate a projected desktop. A projector scan adjusts to limit traces across inactive portions of the display surface and to increase traces at predetermined areas, such as video windows.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 24, 2015
    Applicant: Dell Products L.P.
    Inventors: Abu Shaher Sanaullah, Erin K. Walline, Karthikeyan Krishnakumar, Mark R. Ligameri, Rocco Ancona, Michiel Sebastiaan Emanuel Petrus Knoppert, Roman J. Pacheco, Christophe Daguet
  • Projected Information Handling System Input Interface with Dynamic Adjustment
    Publication number: 20150268773
    Abstract: Projected input and output devices adapt to a desktop environment by sensing objects at the desktop environment and altering projected light in response to the sensed objects. For instance, projection of input and output devices is altered to limit illumination against and end user's hands or other objects disposed at a projection surface. End user hand positions and motions are detected to provide gesture support for adapting a projection work space, and configurations of projected devices are stored so that an end user can rapidly recreate a projected desktop. A projector scan adjusts to limit traces across inactive portions of the display surface and to increase traces at predetermined areas, such as video windows.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 24, 2015
    Applicant: DELL PRODUCTS L.P.
    Inventors: Abu Shaher Sanaullah, Karthikeyan Krishnakumar, Mark R. Ligameri, Rocco Ancona, Michiel Sebastiaan Emanuel Petrus Knoppert
  • Gesture Controlled Adaptive Projected Information Handling System Input and Output Devices
    Publication number: 20150268730
    Abstract: Projected input and output devices adapt to a desktop environment by sensing objects at the desktop environment and altering projected light in response to the sensed objects. For instance, projection of input and output devices is altered to limit illumination against and end user's hands or other objects disposed at a projection surface. End user hand positions and motions are detected to provide gesture support for adapting a projection work space, and configurations of projected devices are stored so that an end user can rapidly recreate a projected desktop. A projector scan adjusts to limit traces across inactive portions of the display surface and to increase traces at predetermined areas, such as video windows.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 24, 2015
    Applicant: DELL PRODUCTS L.P.
    Inventors: Erin K. Walline, Karthikeyan Krishnakumar, Mark R. Ligameri, Rocco Ancona, Michiel Sebastiaan Emanuel Petrus Knoppert
  • Context Adaptable Projected Information Handling System Input Environment
    Publication number: 20150268812
    Abstract: Projected input and output devices adapt to a desktop environment by sensing objects at the desktop environment and altering projected light in response to the sensed objects. For instance, projection of input and output devices is altered to limit illumination against and end user's hands or other objects disposed at a projection surface. End user hand positions and motions are detected to provide gesture support for adapting a projection work space, and configurations of projected devices are stored so that an end user can rapidly recreate a projected desktop. A projector scan adjusts to limit traces across inactive portions of the display surface and to increase traces at predetermined areas, such as video windows.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 24, 2015
    Applicant: DELL PRODUCTS L.P.
    Inventors: Erin K. Walline, Karthikeyan Krishnakumar, Mark R. Ligameri, Rocco Ancona, Michiel Sebastiaan Emanuel Petrus Knoppert
  • Adaptive Projected Information Handling System Output Devices
    Publication number: 20150268732
    Abstract: Projected input and output devices adapt to a desktop environment by sensing objects at the desktop environment and altering projected light in response to the sensed objects. For instance, projection of input and output devices is altered to limit illumination against and end user's hands or other objects disposed at a projection surface. End user hand positions and motions are detected to provide gesture support for adapting a projection work space, and configurations of projected devices are stored so that an end user can rapidly recreate a projected desktop. A projector scan adjusts to limit traces across inactive portions of the display surface and to increase traces at predetermined areas, such as video windows.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 24, 2015
    Applicant: DELL PRODUCTS L.P.
    Inventors: Erin K. Walline, Karthikeyan Krishnakumar, Mark R. Ligameri, Rocco Ancona, Michiel Sebastiaan Emanuel Petrus Knoppert, William Dale Todd Nix
  • Interactive Projected Information Handling System Support Input and Output Devices
    Publication number: 20150268731
    Abstract: Projected input and output devices adapt to a desktop environment by sensing objects at the desktop environment and altering projected light in response to the sensed objects. For instance, projection of input and output devices is altered to limit illumination against and end user's hands or other objects disposed at a projection surface. End user hand positions and motions are detected to provide gesture support for adapting a projection work space, and configurations of projected devices are stored so that an end user can rapidly recreate a projected desktop. A projector scan adjusts to limit traces across inactive portions of the display surface and to increase traces at predetermined areas, such as video windows.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 24, 2015
    Applicant: Dell Products L.P.
    Inventors: Abu Shaher Sanaullah, Erin K. Walline, Karthikeyan Krishnakumar, Mark R. Ligameri, Rocco Ancona, Michiel Sebastiaan Emanuel Petrus Knoppert, Christophe Daguet
  • COMPUTER ACCELERATOR SYSTEM WITH IMPROVED EFFICIENCY
    Publication number: 20150261528
    Abstract: A specialized memory access processor is placed between a main processor and accelerator hardware to handle memory access for the accelerator hardware. The architecture of the memory access processor is designed to allow lower energy memory accesses than can be obtained by the main processor in providing data to the hardware accelerator while providing the hardware accelerator with a sufficiently high bandwidth memory channel. In some embodiments, the main processor may enter a sleep state during accelerator calculations to substantially lower energy consumption.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 17, 2015
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: Chen-Han Ho, Karthikeyan Sankaralingam, Sung Kim
  • PAGE ROUTE SORTING USING DSP TECHNIQUES
    Publication number: 20150261877
    Abstract: A server device may store information identifying multiple routes. Each of the multiple routes may identify a sequence in which pages were individually selected. The server device may determine respective time-domain functions for each of the multiple routes. Each of the time-domain functions may represent a series of data points corresponding to the sequence in which the web pages were selected. The server device may determine respective frequency-domain functions based on the respective time-domain functions; determine route metrics for each of the multiple routes based on the respective frequency-domain functions; sort the multiple routes based on the route metrics; and store or output information regarding the sorted multiple routes.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 17, 2015
    Applicant: VERIZON PATENT AND LICENSING INC.
    Inventor: Karthikeyan X. Sekar
  • METHOD OF ESTIMATING PROGRAM SPEED-UP WITH HIGHLY PARALLEL ARCHITECTURES
    Publication number: 20150261536
    Abstract: The amount of speed-up that can be obtained by moving a program to a parallel architecture is determined by a model associating speed-up to micro-architecture independent features of the program execution. The model may be generated, for example, by linear regression, by evaluating programs that have been ported to parallel architectures where the micro-architecture independent features are known.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 17, 2015
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: Karthikeyan Sankaralingam, Newsha Ardalani, Xiaojin Zhu
  • Multiple-input multiple-output wireless communications with full duplex radios
    Patent number: 9137788
    Abstract: An apparatus used in a full duplex multiple-input multiple-output (MIMO) wireless communications system is disclosed. In an aspect, the apparatus includes a plurality of antennas, each of which is connected to a combination of at least a TX (transmit) RF (radio frequency) chain and an RX (receive) RF chain. The plurality of antennas are split into one or more transmit antennas and one or more receive antennas, and the apparatus communicates with another apparatus. Other apparatuses and some methods for wireless communications also are disclosed.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: September 15, 2015
    Assignee: NEC Laboratories America, Inc.
    Inventors: Mohammad A. Khojastepour, Sanaz Barghi, Karthikeyan Sundaresan, Sampath Rangarajan
  • Cloud-based radio access network for small cells
    Patent number: 9125047
    Abstract: A wireless communications system is disclosed. The system comprises a baseband processing unit (BBU) pool including one or more baseband processing units (BBUs), and a plurality of remote radio heads (RRHs) connected to the BBU pool through a front-haul network, wherein the wireless communications system has a plurality of sectors, each of which includes one or more small cells, each of which is deployed by one of the plurality of RRHs, wherein a BBUs is mapped to two or more RRHs in a sector in a one-to-many configuration, and a BBU is mapped to a single RRH in a sector in a one-to-one configuration, and wherein a combination of the one-to-one configuration and the one-to-many configuration is applied to each sector. Other systems, apparatuses, and methods also are disclosed.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: September 1, 2015
    Assignee: NEC Laboratories America, Inc.
    Inventors: Karthikeyan Sundaresan, Cheng Liu, Mustafa Arslan, Meilong Jiang, Sampath Rangarajan
  • DYNAMIC CUT-IN WIND SPEED FOR WIND TURBINES
    Publication number: 20150233348
    Abstract: The present subject matter is directed to a system and method for operating a wind turbine. More specifically, the system and method determines a dynamic cut-in wind speed for the wind turbine based on one or more environmental conditions. In one embodiment, the method includes providing a predetermined cut-in wind speed for the wind turbine based on at least one estimated environmental condition for a wind turbine site; determining one or more actual environmental conditions near the wind turbine for a predetermined time period at the wind turbine site; determining a variance between the at least one estimated environmental condition and the one or more actual environmental conditions; calculating a dynamic cut-in wind speed based on the variance; and, operating the wind turbine based on the dynamic cut-in wind speed so as to increase wind turbine operational efficiency.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 20, 2015
    Applicant: General Electric Company
    Inventors: Vijaykumar Muppayya Hiremath, Shimnamol Padmanabhan Nair, Aswini Karteek Bommareddy, Karthikeyan Appuraj
  • DEGREES OF FREEDOM IN MULTICELL WIRELESS SYSTEMS WITH FULL-DUPLEX BASE STATIONS USING INTERFERENCE ALIGNMENT AND METHODS FOR ENABLING FULL-DUPLEX WITH HALF DUPLEX CLIENTS
    Publication number: 20150223173
    Abstract: An interference alignment system for communication structures that includes a single cell channel comprising an access point node, and a full bipartite interference channel (FBIC) configuration of a plurality of receiving nodes and a plurality of transmitting nodes. Each receiving node sees an interfering signal from all transmitting nodes. The access point node of the single cell channel provides a single node having downlink channels to all receiving nodes in the FBIC, and all of the uplink channels from the FBIC are to the single access point node to the single cell channel.
    Type: Application
    Filed: December 4, 2014
    Publication date: August 6, 2015
    Inventors: Mohammad Khojastepour, KARTHIKEYAN SUNDARESAN, Eugene Chai, Sampath Rangarajan
  • Efficient admission control for low power and lossy networks
    Patent number: 9100305
    Abstract: In one embodiment, a centralized network management server (NMS) determines a network state of a low power and lossy network (LLN) based on resource utilization due to traffic in the LLN. The NMS also determines an admission state based on the network state, and admission control (network-wide and/or localized control) based on the admission state. As such, the centralized NMS can then administer the admission control for all nodes in the LLN, where network-wide control comprises a single control command to all nodes in the LLN, and the nodes direct admission based on the control command, and where localized control comprises a request-response exchange between the nodes and the centralized NMS, and the NMS directs admission on a per-request basis.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: August 4, 2015
    Assignee: Cisco Technology, Inc.
    Inventors: Jonathan W. Hui, Jean-Philippe Vasseur, Karthikeyan Ganesan, Vikram Jayaraman
  • Rapid, non-pyrolytic method of making activated carbon
    Patent number: 9096439
    Abstract: High-speed formation of char, useful as a precursor to activated carbon, is produced by a combination of cellulosic material and an acid solution both preheated close to the steam temperature and then mixed. The rapid endothermic reaction rapidly chars the cellulosic material driving excess water away as steam and minimizing tar formation.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: August 4, 2015
    Assignee: WISYS TECHNOLOGY FOUNDATION, INC.
    Inventor: Annamalai Karthikeyan
  • METHOD AND APPARATUS FOR UNATTENDED IMAGE CAPTURE
    Publication number: 20150215528
    Abstract: Described is a method and apparatus for unattended image capture that can identify subjects or faces within an image captured with an image sensor. The methods and apparatus may then score the image based, at least in part, on scores of detected subjects or faces in the image, scores of facial expressions, a focus score, exposure score, stability score, or audio score. If the score of the image is above a threshold, a snapshot image may be stored to a data store on the imaging device. In some aspects, if the score of the image is below a threshold, one or more audible prompts may be generated indicating that subjects should change positions, smile or remain more still during the image capture process.
    Type: Application
    Filed: April 8, 2015
    Publication date: July 30, 2015
    Inventors: Hung-Hsin Wu, Karthikeyan Shanmugavadivelu, Shizhong Liu, Wan Shun Vincent Ma, Adarsh Abhay Golikeri
  • System and method to ensure buffer compliance in a MPEG2 transport stream system
    Patent number: 9094696
    Abstract: A system and method for ensuring buffer compliance in a moving picture experts group 2 (MPEG2) transport stream (TS) system is disclosed. In one embodiment, a plurality of encoded audio/video (A/V) streams is categorized into a first group and a second group. Further, interleaving bits and a number of bytes to be sent are computed for each encoded A/V stream in the first group and the second group, respectively. Furthermore, an encoded A/V stream is selected based on the computed interleaving bits and number of bytes to be sent, respectively. In addition, one or more TS packets are generated by packetizing data in one or more frames in the selected encoded A/V stream based on program clock reference (PCR) and decode time stamp (DTS) associated with the one or more frames to ensure buffer compliance in the MPEG2 TS system.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: July 28, 2015
    Assignee: ITTIAM SYSTEMS (P) LTD.
    Inventors: Vikas K. Prasad, Karthikeyan Natesan, Battula Kishor Babu
  • DEVICES AND METHODS FOR NETWORK-CODED AND CACHING-AIDED CONTENT DISTRIBUTION
    Publication number: 20150207903
    Abstract: A method for transmitting data files in a network includes receiving requests from destination devices for packets of the data files. The method includes constructing a conflict graph such that each packet requested by each destination device is represented by a distinct vertex in a plurality of vertices of the conflict graph, the plurality of vertices being associated with the destination devices. The method includes assigning labels to the plurality of vertices. The method includes assigning levels to the plurality of vertices. The method includes ordering the plurality of vertices from vertices having a highest level to vertices having a lowest level. The method includes coloring the plurality of vertices based on the ordering. The method includes combining the packets represented by vertices in the plurality of vertices having a same color. The method includes sending the combined packets.
    Type: Application
    Filed: October 15, 2014
    Publication date: July 23, 2015
    Inventors: Antonia TULINO, Jaime LLORCA, Karthikeyan SHANMUGAM
  • HYBRID ON-CHIP CLOCK CONTROLLER TECHNIQUES FOR FACILITATING AT-SPEED SCAN TESTING AND SCAN ARCHITECTURE SUPPORT
    Publication number: 20150204945
    Abstract: Various aspects described or referenced herein are directed to different methods, systems, and computer program products for implementing hybrid on-chip clock controller techniques for facilitating at-speed scan testing and scan architecture support.
    Type: Application
    Filed: January 22, 2014
    Publication date: July 23, 2015
    Applicant: NVIDIA Corporation
    Inventors: Amit SANGHANI, Sagar NATARAJ, Karthikeyan NATARAJAN, Bo YANG
  • High directivity directional coupler having stages operating over respective frequency ranges and a switch for selecting a desired frequency range
    Patent number: 9088061
    Abstract: The directional coupler supports ultra high bandwidth of 5600 MHz (from 400 MHz to 6 GHz) in compact structure and also provides high directivity of (>15 dB). The coupler uses a two stage micro-strip directional coupler for a frequency range of 400 MHz to 6 GHz, where the first stage supports a frequency of operation from 0.4 GHz to 1 GHz and the second stage supports a frequency of operation from 1 GHz to 6 GHz and the required coupled port can be chosen using a radio frequency switch as required by the application used in.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 21, 2015
    Assignee: HCL Technologies Limited
    Inventors: Kameswara Rao Balijapalli, Ravi Kishore, Kumaralingam Ramamoorthy, Karthikeyan Shanmugavelu, Deepa Vedhanayagam