Patents by Inventor Sumit Roy

Sumit Roy 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: 8463611
    Abstract: Embodiments of the present invention recite a method and system for improving the fidelity of a dialog system. In one embodiment, a first input generated by a user of a first system operating in a first modality is accessed. In embodiments of the present invention, the first system also generates a first output corresponding to the first input. An second input from a second user, who is engaged in a conversation with the first user, is accessed by a second system. The second input is then utilized to modify the first output of the first system.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: June 11, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sumit Roy, Michael Harville, Michele Covell
  • Publication number: 20130070605
    Abstract: Method, apparatus, and computer program product embodiments are disclosed for quiet period management in wireless networks to enhance coexistence of wireless networks with other wireless networks. An example embodiment comprises: receiving control information in a wireless message in a communications channel from another device in a wireless network; receiving a packet having a duration in the communications channel in the wireless network; delaying transmission of a packet in the communications channel for an interval determined by the received control information; monitoring an ambient electromagnetic spectrum during the interval; and competing for transmission resources in the communications channel, using a carrier sense multiple access with collision avoidance access method, after the interval.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 21, 2013
    Applicant: Nokia Corporation
    Inventors: Chittabrata GHOSH, Klaus Franz Doppler, Sumit Roy
  • Publication number: 20120316689
    Abstract: The subject specification comprises enhanced communication infrastructure for a multi-tier hierarchical smart distribution grid (SDG). The SDG comprises a specified number of distribution network node controller (DNNC) components employed to desirably control communications and power distribution between respective tiers of the SDG to facilitate efficient power distribution. When communication between the a DNNC in one tier and another DNNC in another tier, is desired, the DNNC can identify available communication channels and respective communication conditions of the available communication channels, and can dynamically select a subset of available data and preferred communication channel, based at least in part on predefined control criteria, to control data transmission loads in the network and facilitate real time control of the SDG. Data can be communicated via the selected communication channel.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 13, 2012
    Applicant: ALSTOM GRID
    Inventors: Ethan Clair Boardman, Sumit Roy, Subrahmanyam Saraswati Venkata
  • Patent number: 8289836
    Abstract: An apparatus and associated methods to improve diversity gain while preserving channel throughput in a multicarrier communication channel are generally presented.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: October 16, 2012
    Assignee: Intel Corporation
    Inventors: Lei Shao, Sumit Roy, Sumeet Sandhu
  • Publication number: 20120197966
    Abstract: A system and methods are disclosed for serving combined media using resource metadata referencing original media data. Combined resource metadata is created from combining the metadata of two or more files for a virtual media file representing the requested combined media. The combined data can be adjusted to synch audio and video portions as needed for combining the files. The virtual media file references the original media files and serves the content on-the-fly, rather than creating a new file with the combined media, at a savings of server response time and memory consumption, while maintaining high performance.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 2, 2012
    Inventors: Amir Wolf, Sumit Roy
  • Patent number: 8223664
    Abstract: Embodiments of the disclosure relate to method and apparatus for efficient wireless adaptive uplink protocols for communication networks.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: July 17, 2012
    Assignee: Empire Technology Development LLC
    Inventors: You-Chang Ko, Sumit Roy
  • Publication number: 20120163229
    Abstract: Examples of achieving quality of service in a wireless local area network via meeting communication channel performance criteria to include a minimum signal-to-noise plus interference ratio and a proportional fairness limit are disclosed.
    Type: Application
    Filed: March 6, 2012
    Publication date: June 28, 2012
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC.
    Inventors: Sumit Roy, Rohit Gupta
  • Patent number: 8200747
    Abstract: A method and system thereof for handing off a media session are described. In one embodiment, a first media segment is forwarded to a client node. The first media segment includes a portion of an item of media content stored in lieu of storing the item of media content in its entirety. The item of media content is segmented according to segmentation characteristics. Handoff information used for transferring the media session to another server node is specified. The handoff of the media session to the other server node occurs when the forwarding of the first media segment is completed, such that the handoff occurs between media segments.
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: June 12, 2012
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John G. Apostolopoulos, Sumit Roy
  • Patent number: 8144613
    Abstract: Examples of achieving quality of service in a wireless local area network via meeting communication channel performance criteria to include a minimum signal-to-noise plus interference ratio and a proportional fairness limit are disclosed.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: March 27, 2012
    Assignee: Empire Technology Development LLC
    Inventors: Sumit Roy, Rohit Gupta
  • Patent number: 7966593
    Abstract: An integrated circuit design system, method, and computer program product are provided that takes into account signal stability. In use, at least one condition is identified where an output of a logic element before receipt of a clock signal is the same as the output of the logic element after receipt of the clock signal. To this end, such logic element may be disabled based on the identified condition for power savings or other purposes.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 21, 2011
    Assignee: Calypto Design Systems, Inc.
    Inventors: Venky Ramachandran, Nikhil Tripathi, Anmol Mathur, Sumit Roy, Malay Haldar
  • Publication number: 20110039545
    Abstract: Embodiments of the disclosure relate to adaptive uplink protocols for communication networks.
    Type: Application
    Filed: August 17, 2009
    Publication date: February 17, 2011
    Inventors: You-Chang Ko, Sumit Roy
  • Publication number: 20110003612
    Abstract: Implementations of loss differentiation based management of wireless networks are disclosed.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 6, 2011
    Inventors: Sumit Roy, Hui Ma
  • Publication number: 20100290355
    Abstract: Examples of achieving quality of service in a wireless local area network via meeting communication channel performance criteria to include a minimum signal-to-noise plus interference ratio and a proportional fairness limit are disclosed.
    Type: Application
    Filed: May 18, 2009
    Publication date: November 18, 2010
    Inventors: Sumit Roy, Rohit Gupta
  • Patent number: 7782970
    Abstract: An apparatus and associated methods to improve diversity gain while preserving channel throughput in a multicarrier communication channel are generally presented.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: August 24, 2010
    Assignee: Intel Corporation
    Inventors: Lei Shao, Sumit Roy, Sumeet Sandhu
  • Patent number: 7761827
    Abstract: An integrated circuit design system, method, and computer program product are provided that takes into account observability based clock gating conditions. In use, at least one condition is identified where an output of a first logic element is not a function of a first input of the first logic element, due to a second input of the first logic element. To this end, at least one second logic element may be disabled based on the identified condition for power savings or other purposes.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: July 20, 2010
    Assignee: Calypto Design Systems, Inc.
    Inventors: Venky Ramachandran, Nikhil Tripathi, Anmol Mathur, Sumit Roy, Malay Haldar
  • Patent number: 7660877
    Abstract: Methods and systems for servicing content for delivery to a client device are described. An item of content is identified during a session with the client device. A type of service to be performed on the item of content is identified. A provider is selected from a plurality of providers capable of performing the service. The session is transferred to the selected provider, which performs the service on the item of content.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: February 9, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Sumit Roy, Bo Shen, John Ankcorn, John Apostolopoulos, Michele Covell, Michael Harville, Wai-tian Tan, Susie Wee
  • Patent number: 7643422
    Abstract: Embodiments of the present invention recited a method and system for modifying a media stream. In one embodiment, a request is received to modify a media stream from a current display rate to a desired display rate. In response to the request, the media stream dynamically processed to create a modified media stream which is compliant with a pre-determined frame-rate limitation and with a pre-determined bit-rate limitation.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: January 5, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michele Covell, Sumit Roy, Bo Shen
  • Patent number: 7613223
    Abstract: Time-frequency coding in a multi-band ultra-wideband system is generally described. In this regard a hopping code agent is presented to select a frequency hopping code for encoding and decoding from a set of predetermined FHC's for communicating with other devices in a multi-band ultra-wideband (MB-UWB) network, wherein the FHC defines a sequence of two or more pulses over two or more frequencies and wherein the FHC's include a time slot that contains no transmission. Other embodiments are also disclosed and claimed.
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: November 3, 2009
    Assignee: Intel Corporation
    Inventors: Sumit Roy, Jeffrey R. Foerster, V. Srinivasa Somayazulu
  • Patent number: 7613768
    Abstract: One embodiment of the invention includes a method for managing a streaming media service. The method includes receiving a request for a streaming media service from a client and the streaming media service includes a media service component. A service location manager is selected to which to provide the request from a plurality of service location managers. Additionally, a service provider is selected to which to assign the media service component from a plurality of service providers of a network. Furthermore, the service provider is informed of the assignment to perform the media service component. The service provider is caused to prepare to perform the streaming media service on streaming media. Moreover, information is used to determine whether to initiate a handoff of the streaming media service from the service provider to another service provider. If it is determined to initiate the handoff, the handoff is initiated.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: November 3, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael Harville, Michele Covell, John Ankcorn, John Apostolopoulos, Sumit Roy, Bo Shen, Wai-tian Tan, Susie Wee
  • Patent number: 7596179
    Abstract: A method and system for reducing the resolution of media data. Input data at a first resolution are received from a source. The input data are compressed. The input data can be downsampled to generate compressed downsampled data at a reduced resolution. The compressed downsampled data can be used to generate a frame at the reduced resolution. When the frame is needed as a reference for another frame, the compressed downsampled data can be decoded to generate decompressed downsampled data at the reduced resolution. The decompressed downsampled data can be upsampled to generate decompressed data at a resolution corresponding to the first resolution. Thus, a larger amount of data can be processed while the data are compressed. As such, data processing operations such as transcoding can be accomplished quickly and effectively while saving computing resources.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: September 29, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bo Shen, Sumit Roy