Patents by Inventor Rajendra Kumar

Rajendra Kumar 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: 8971444
    Abstract: A receiver may comprise a complex mixer for converting the modulated signal to a complex modulated signal comprising a first in-phase component and a first quadrature component. The receiver may further comprise a digital demodulator. The digital demodulator may comprise at least one processor circuit programmed for applying a phase differencer for generating an output function in terms of a phase difference of the complex modulated signal. Applying the phase differencer may comprise converting the first in-phase component to a function of a phase difference of the first in-phase component expressed in digital time, and converting the first quadrature component to a function of the phase difference of the first quadrature component expressed in digital time. The at least one processor circuit of the digital demodulator may also be programmed for applying a four quadrant inverse tangent to the output function to generate the information signal.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: March 3, 2015
    Inventor: Rajendra Kumar
  • Patent number: 8935401
    Abstract: In brief, the invention provides a method and system for admission control in a grid computing environment. When a user request for a global session is received from a submission node, applications to be launched through the global session are identified, and resource requirements are determined. A execution node is then allocated, and the global session is established between the execution node and the submission node. A user then requests an application session through the established global session, and the application session is established with the execution node.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: January 13, 2015
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Rajendra Kumar, Vanish Talwar, Sujoy Basu
  • Publication number: 20140362934
    Abstract: Various embodiments of the invention are directed to methods and systems for multi transform OFDM transmitter and receivers with low peak to average power ratio (PAPR) signals, that have high bandwidth efficiency and are computational efficient. For example, various embodiments of the transmitter may utilize an architecture comprised of a baseband modulator, a serial to parallel converter, a bank of multiplicity NT orthonormal transforms unit, a bank of multiplicity NT inverse Fourier transforms unit, a dummy symbols generator, and a minimum PAPR evaluation unit for finding the optimum transform index n0. Various embodiments of the receiver may comprise of a transform index detection unit for the detection of the transform index imbedded in the OFDM signal.
    Type: Application
    Filed: June 10, 2013
    Publication date: December 11, 2014
    Inventor: Rajendra Kumar
  • Publication number: 20140327576
    Abstract: Various embodiments described herein are directed to methods and systems for multibeam adaptive antenna architectures for recovering user signals in the coverage area of the antenna in the presence of interference sources. For example, various embodiments may utilize an architecture comprised of an array of antenna feeds, an RF to baseband conversion subsystem, a bank of digital beamformers, a channelization subsystem, a bank of weighted combiners, and a bank of demodulators for the demodulation and detection of user signals. The multiple beamformers introduce nulls in the direction of interference sources based on distinct adaptive algorithms for providing different antenna beam patterns after adaptation. Various other embodiments may utilize architecture for providing the directions of the interference sources or intentional jammers.
    Type: Application
    Filed: February 7, 2013
    Publication date: November 6, 2014
    Inventor: Rajendra Kumar
  • Patent number: 8877896
    Abstract: Systems, compositions, methods, and kits for identifying potential therapeutic agents for treatment of complement based ocular diseases are provided herein. The methods and kits include a complement component 3 (C3) protein or derivative that is contacted to ocular cells or tissue. Another embodiment of the invention herein provides for diagnosis and/or prognosis of a complement-associated ocular disease. Compositions, methods and kits for regulating or treating a complement-related condition using at least one of CD46 protein, CD55 protein, and a recombinant chimeric soluble terminator of activated complement (STAC) protein or source of the STAC protein. The STAC protein includes an amino acid sequence including at least two of an amino acid sequence of a CD59 protein, an amino acid sequence derived from a CD46 protein, and an amino acid sequence derived from a CD55 protein, optionally further comprising a linker to connect amino acid sequences.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: November 4, 2014
    Assignee: Tufts University
    Inventors: Rajendra Kumar-Singh, Siobhan M. Cashman, John Harry Sweigard
  • Publication number: 20140313657
    Abstract: A peripheral unit comprises a housing having a portion configured to engage with a handheld host device of various sizes and electrical configurations. An attachment mechanism is associated with the housing, being used to selectively secure the housing to the handheld host device to form a one-piece apparatus suitable for handheld use. The attachment mechanism is secured to the host device by selective adjustment of the size to adapt to a host device. In addition, the peripheral unit may provide a universal connection to at least one electrical connector of the host device, to provide added input-output functions to the operation of the combined system.
    Type: Application
    Filed: June 11, 2014
    Publication date: October 23, 2014
    Inventor: RAJENDRA KUMAR
  • Patent number: 8831082
    Abstract: Various embodiments described herein are directed to methods and systems for blind mode adaptive equalizer system to recover complex valued data symbols from the signal transmitted over time-varying dispersive diversity wireless channels. For example, various embodiments may utilize an architecture comprised of a bank of estimation units, a normalizing gain estimator, a DSP unit and a feedback shift register providing the equalizer feedback state vector. The estimation unit may be further comprised of a multiplicity of adaptive algorithms providing various filtered estimates of the data symbol to the DSP unit or providing the joint estimate of the transmitted data symbol.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: September 9, 2014
    Inventor: Rajendra Kumar
  • Patent number: 8826319
    Abstract: A system and method for tracking of advertisements. The system includes a user interface for accessing information associated with commercial breaks and advertisements. The system also includes one or more edge devices for recording advertisements aired during commercial breaks on a television or radio channel. Further, the system includes a media server. The media server includes a memory, and a processor for storing recorded advertisements along with a stamp of region, channel, program and time of insertion associated with the advertisements in a repository of a media server, and providing access to the recorded advertisements for the advertisers. The method includes recording advertisements aired during commercial breaks on the television or the radio channel, storing recorded advertisements along with a stamp of region, channel, program and time of insertion associated with the advertisements in a repository of a media server, and providing access to the recorded advertisements for the advertisers.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: September 2, 2014
    Assignee: Surewaves Mediatech Private Limited
    Inventor: Rajendra Kumar Khare
  • Publication number: 20140223459
    Abstract: A system and method for tracking and managing playback of advertisements is disclosed. The system includes a processor configured to process the multimedia content, including advertisements, and generate a video signature/audio signature corresponding to the multimedia content. The video/audio signature is subsequently embedded/superimposed on at least one of the frames of the multimedia advertisement. The system further includes a plurality of trackers placed at predetermined geographic locations and configured to detect the broadcast television signal, and determine whether the video signature/audio signature is present in the broadcast signal. Subsequently, the tracker generates a report comprising at least a time stamp indicating the time of broadcast of the advertisement having the audio/video signature.
    Type: Application
    Filed: February 3, 2014
    Publication date: August 7, 2014
    Inventor: RAJENDRA KUMAR KHARE
  • Publication number: 20140219327
    Abstract: Various embodiments described herein are directed to methods and systems for blind mode adaptive equalizer system to recover complex valued data symbols from the signal transmitted over time-varying dispersive diversity wireless channels. For example, various embodiments may utilize an architecture comprised of a bank of estimation units, a normalizing gain estimator, a DSP unit and a feedback shift register providing the equalizer feedback state vector. The estimation unit may be further comprised of a multiplicity of adaptive algorithms providing various filtered estimates of the data symbol to the DSP unit or providing the joint estimate of the transmitted data symbol.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 7, 2014
    Inventor: Rajendra Kumar
  • Patent number: 8783574
    Abstract: The invention relates to a peripheral unit system that provides a universally usable system for adding peripheral functions to off-the-shelf handheld host devices of variable size and configuration. The system and methods according to the invention allow adaptation to variably sized handheld host devices without the need to customize the peripheral unit to the host device. The invention provides added functionality such as increased ruggedness and durability, while providing an integrated system in association with a handheld host device, to provide the convenience of a one-piece form-factor, without sacrificing universality of the solution. The peripheral unit comprises a housing having a portion configured to engage with a handheld host device of various sizes and electrical configurations. An attachment mechanism is associated with the housing, being used to selectively secure the housing to the handheld host device to form a one-piece apparatus suitable for handheld use.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: July 22, 2014
    Assignee: Khyber Technologies Corporation
    Inventor: Rajendra Kumar
  • Patent number: 8778886
    Abstract: A peptide-POD with ability to penetrate and deliver fluorophores, siRNA, DNA and quantum dots to cells in culture and retinal and ocular tissues in vivo is provided herein. POD couples to adenovirus vectors, enhancing tropism for certain cells, potentially providing a safer and more efficacious method to deliver molecules to ocular and other tissues in vivo. POD constructs are therapeutic delivery vehicles for treating cells and tissues, including ocular cells and tissues suffering from retinal degeneration.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: July 15, 2014
    Assignee: Tufts University
    Inventors: Rajendra Kumar-Singh, Siobhan M. Cashman, Sarah Parker Read
  • Patent number: 8767845
    Abstract: Various embodiments are directed to systems and methods for processing signals comprising a first component and a second component. A bandwidth of the first component may be centered at a center frequency. A bandwidth of the second component may be offset from the center frequency by an offset frequency such that at least a portion of the bandwidth of the second component overlaps a skirt of the first component. In various embodiments, a transmitter may split a single signal to generate the first and second components, shift the frequency of the second component, recombine and transmit the two components. Also, in various embodiments, a receiver may receive the signal and derive the first and second components by correcting for cross-interference.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: July 1, 2014
    Assignee: The Aerospace Corporation
    Inventor: Rajendra Kumar
  • Patent number: 8759393
    Abstract: The present invention relates to the use of certain dialkyl fumarates for the preparation of pharmaceutical preparations for use in transplantation medicine or for the therapy of autoimmune diseases and said compositions in the form of micro-tablets or pellets. For this purpose, the dialkyl fumarates may also be used in combination with conventional preparations used in transplantation medicine and immunosuppressive agents, especially cyclosporines.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: June 24, 2014
    Assignee: Biogen Idec International GmbH
    Inventors: Rajendra Kumar Joshi, Hans-Peter Strebel
  • Patent number: 8762504
    Abstract: System and method for creating networked short range zone through remote delivery of short range proxy server on a remotely located machine, the method comprising the steps of registering with the system network, receiving a unique ID, accessing the server for further processing, downloading the relevant application with enabling means, connecting a device to short range dongles, running the application and registering the device using the unique ID, entering the location based and/or other relevant information, enabling the device for creating networked short range zone.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: June 24, 2014
    Assignee: Surewaves Mediatech Private Limited
    Inventors: Rajendra Kumar Khare, Ravi Bhat, Abhijit Das, Anant Kansal, Manjit Rath, Saurabh Singh, Tushar Vyas, Sanchit Sanga, Prabhvir Sahmey, Bolin Bolin, Cvl Srinivas, Shivprasanth Shivaprasanth, Apama Sharma, Balakuntla Maheshkumar Gurucharan, Rajendra Dwivedi, Mohammad Mohammad, Vikas Minda
  • Patent number: 8743387
    Abstract: A grid computing system is disclosed. The grid computing system includes one or more printer nodes representing distributed print resources, an information repository, and a grid distributed resource manager. Continuing, the information repository includes printer attributes associated with the printer nodes. Further, the grid distributed resource manager provides a virtual printer to a user based on the distributed print resources. Also, the grid distributed resource manager accepts and assigns print jobs submitted to the virtual printer by the user.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: June 3, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Rajendra Kumar
  • Publication number: 20140140387
    Abstract: A blind mode adaptive equalizer system to recover the in general complex valued data symbols from the signal transmitted over time-varying dispersive wireless channels is disclosed comprising an adaptive communication receiver for the demodulation and detection of digitally modulated signals received over wireless communication channels exhibiting multipath and fading, the receiver comprising an RF front end, an RF to complex baseband converter, a band limiting matched filter, a channel gain normalizer, a blind mode adaptive equalizer with hierarchical structure, an initial data segment recovery circuit, a differential decoder, a complex baseband to data bit mapper, and an error correction code decoder and de-interleaver.
    Type: Application
    Filed: November 19, 2013
    Publication date: May 22, 2014
    Inventor: Rajendra Kumar
  • Publication number: 20140130069
    Abstract: A video processing system located at a remote location such as a TV broadcasting station or an Internet media server stores a plurality of video elements at that are delivered to a viewing system located at a viewer's premises. The video processing system is capable of receiving a selection request comprising two or more video elements or subsets thereof, wherein the subsets are regions of interest or portions of the corresponding video elements. The video processing system constructs a custom video by combining them based on the viewer' selection and using the region of interest that are provided, and forwards the custom video to the viewing system. Billing based on record of usage is also supported for the custom video.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 8, 2014
    Applicant: Broadcom Corporation
    Inventors: Rajendra Kumar Khare, Brajabandhu Mishra, Sandeep Kumar Relan
  • Patent number: 8711919
    Abstract: Various embodiments described herein are directed to methods and systems for blind mode adaptive equalizer system to recover complex valued data symbols from the signal transmitted over time-varying dispersive wireless channels. For example, various embodiments may utilize an architecture comprised of a channel gain normalizer, a blind mode equalizer with hierarchical structure (BMAEHS) comprised of a level 1 adaptive system and a level 2 adaptive system, and an initial data recovery subsystem. The BMAEHS may additionally be comprised of an orthogonalizer for providing a faster convergence speed. In various architectures of the invention, the BMAEHS may be replaced by a cascade of multiple equalizer stages for providing computational and other advantages. Various embodiments may employ either linear or decision feedback configurations. In the communication receiver architectures, differential encoders and decoders are presented to resolve possible ambiguities.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: April 29, 2014
    Inventor: Rajendra Kumar
  • Patent number: RE45181
    Abstract: An apparatus and method are disclosed that can adapt off-the shelf PDA devices (90) to user input/output applications such as data entry applications and cellular phone applications. The resulting apparatus (10) may be sized and shaped to be durable and facilitate handheld operation when the user is mobile during use. The apparatus provides features required for portable data entry such as key entry, barcode scanning, radio frequency identification, and wireless local area network (LAN) as well as wide area network (WAN) communications. The apparatus may be operated (a) in a slave mode with inclusion of a PDA device (90) for use in certain input/output operations that are processor intensive as well as (b) in a stand-alone mode without inclusion of a PDA device (90) for use in certain other input/output operations that are not processor intensive.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: October 7, 2014
    Assignee: Khyber Technologies Corporation
    Inventor: Rajendra Kumar