Patents by Inventor Nambirajan Seshadri

Nambirajan Seshadri 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).

  • Publication number: 20130003717
    Abstract: A system and method for determining an information communication path based on energy requirements. Various aspects of the present invention provide a method that comprises identifying a plurality of information communication paths that may be utilized to communicate information (e.g., one or more units of information). A communication path identification module may perform such identification. Respective amounts of energy to communicate the information may be estimated for at least a portion of the identified plurality of information communication paths. A communication energy estimation module may perform such estimation. An information communication path may be selected from the identified plurality of information communication paths based, at least in part, on the estimated respective amounts of energy. A communication path selection module may perform such selection.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 3, 2013
    Applicant: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri, James D. Bennett
  • Publication number: 20120322450
    Abstract: Aspects of a method and system for communicatively coupling WLAN and femtocell networks utilizing a FC-to-WLAN network bridge and controller are provided. In this regard, data communicated via one or more femtocells and one or more WLAN access points may be managed via a FC-to-WLAN network bridge and controller communicatively coupled between a femtocell controller and an access point controller. The femtocell controller may be operable to manage and/or control operation of the one or more femtocells, and the access point controller may be operable to manage and/or control operation of the one or more WLAN access points. The FC-to-WLAN network bridge and controller, the femtocell controller, and the access point controller may intemperate to manage data communicated between a first end-user device communicatively coupled to one of the femtocells and a second end-user device communicatively coupled to one of the access points.
    Type: Application
    Filed: August 27, 2012
    Publication date: December 20, 2012
    Applicant: Broadcom Corporation
    Inventors: Jeyhan KARAOGUZ, Nambirajan Seshadri, SR., Nicholas Ilyadis
  • Publication number: 20120324115
    Abstract: Methods and systems for distributed infrastructure for streaming data via multiple access points. Aspects of one method may include apportioning multimedia information among a plurality of transmitting devices based on feedback channel information received from a destination receiving device by, for example, a transmission controller device. The transmitting devices may transmit the multimedia information to the destination receiving device. A transmitting device that may not be apportioned multimedia information may transmit a probing signal. The destination receiving device may generate feedback channel information for a transmitting device, for example, based on the multimedia information or the probing signal received from the respective transmitting device. The apportioning of the multimedia information may be dynamically adjusted based on updated feedback channel information received from the destination receiving device.
    Type: Application
    Filed: August 28, 2012
    Publication date: December 20, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, Hooman Honary, Nambirajan Seshadri, Jason Trachewsky
  • Patent number: 8335970
    Abstract: A decoder includes an interface and a processing module. The interface receives first data, redundant data of the first data, second data, redundant data of the second data, and combined redundant data. The processing module decodes the first data based on the redundant data of the first data, decodes the second data based on the redundant data, of the second data and verifies the decoding of the first and second data. When the first data is decoded successfully and the second data is not, the processing module encodes the first data to produce a second redundant data of the first data, determines a second redundant data of the second data based on the combined redundant data and the second redundant data of the first data, decodes the second data based on the second redundant data of the second data, and verifies the decoding of the second data.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: December 18, 2012
    Assignee: Broadcom Corporation
    Inventors: Nambirajan Seshadri, Ba-Zhong Shen, Tsung-Yi Chen
  • Patent number: 8335222
    Abstract: A method and apparatus supporting the handling of calls using simulcasting of multimedia information are disclosed. Multimedia information exchanged by an associated access device and a gateway. The access device may request for the multimedia information to be recorded during a call, request retrieval of the multimedia information, and playback the multimedia information. The gateway may store the received multimedia information locally or may communicate the multimedia information to storage. The gateway may cause a user of the access device to be notified of the availability of multimedia information for a recorded call, and may communicate the multimedia information to the access device for playback. A user may be notified if storage and bandwidth for the recording of a call is not available.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: December 18, 2012
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, James D. Bennett, Nambirajan Seshadri
  • Publication number: 20120315991
    Abstract: An apparatus includes a transmitter and a receiver device, which includes a receiver section and a processing module. The transmitter transmits a high carrier frequency signal. The receiver section includes first and second antennas that have an antenna radiation relationship for receiving the high carrier frequency signal. A receiver module of the receiver section determines first and second signal properties of the received high carrier frequency signal. The processing module determines a position of the receiver device with respect to the transmitter based on the first and second signal properties and maps the position to a coordinate system.
    Type: Application
    Filed: August 23, 2012
    Publication date: December 13, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Nambirajan Seshadri, Brima B. Ibrahim, John Walley, Jeyhan Karaoguz
  • Publication number: 20120310634
    Abstract: A communication device includes memory, an input interface, a processing module, and a transmitter. The processing module receives a digital signal from the input interface, wherein the digital signal includes a desired digital signal component and an undesired digital signal component. The processing module identifies one of a plurality of codebooks based on the undesired digital signal component. The processing module then identifies a codebook entry from the one of the plurality of codebooks based on the desired digital signal component to produce a selected codebook entry. The processing module then generates a coded signal based on the selected codebook entry, wherein the coded signal includes a substantially unattenuated representation of the desired digital signal component and an attenuated representation of the undesired digital signal component. The transmitter converts the coded signal into an outbound signal in accordance with a signaling protocol and transmits it.
    Type: Application
    Filed: August 20, 2012
    Publication date: December 6, 2012
    Applicant: BROADCOM CORPORATION
    Inventor: Nambirajan Seshadri
  • Patent number: 8315212
    Abstract: A system and method for determining an information communication path based on energy requirements. Various aspects of the present invention provide a method that comprises identifying a plurality of information communication paths that may be utilized to communicate information (e.g., one or more units of information). A communication path identification module may perform such identification. Respective amounts of energy to communicate the information may be estimated for at least a portion of the identified plurality of information communication paths. A communication energy estimation module may perform such estimation. An information communication path may be selected from the identified plurality of information communication paths based, at least in part, on the estimated respective amounts of energy. A communication path selection module may perform such selection.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: November 20, 2012
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri, James D. Bennett
  • Publication number: 20120288024
    Abstract: A method for asymmetrical MIMO wireless communication begins by determining a number of transmission antennas for the asymmetrical MIMO wireless communication. The method continues by determining a number of reception antennas for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas exceeds the number of reception antennas, using spatial time block coding for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas does not exceed the number of reception antennas, using spatial multiplexing for the asymmetrical MIMO wireless communication.
    Type: Application
    Filed: July 26, 2012
    Publication date: November 15, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Christopher J. Hansen, Jason A. Trachewsky, Nambirajan Seshadri, Kelly Brian Cameron, Hau Thien Tran, Ba-Zhong Shen
  • Patent number: 8311579
    Abstract: A mobile communication device includes a motion sensor for generating motion signals in response to motion of the mobile communication device. A motion data generation module generates motion data based on the motion signals. At least one transceiver sends the motion data to a game device in a gaming mode of operation and transceives wireless telephony data with a wireless telephony network in a telephony mode of operation.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: November 13, 2012
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Nambirajan Seshadri, Brima B. Ibrahim, John Walley, Jeyhan Karaoguz
  • Publication number: 20120276876
    Abstract: A communication device may select a communication path to check for pending messages in a multiple network environment. The communication device may exit from a power-saving operating mode during which the communication device does not receive messages from a message server. After exiting the power-saving operating mode, the communication device may identify multiple different communication paths. The multiple communication paths may include different communication networks in the multiple network environment. The communication device may determine a selected communication path from among the multiple communication paths and communicate with a message server across the selected communication path to check for messages.
    Type: Application
    Filed: July 10, 2012
    Publication date: November 1, 2012
    Applicant: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri, James D. Bennett
  • Patent number: 8289212
    Abstract: An apparatus includes a transmitter and a receiver device, which includes a receiver section and a processing module. The transmitter transmits a high carrier frequency signal. The receiver section includes first and second antennas that have an antenna radiation relationship for receiving the high carrier frequency signal. A receiver module of the receiver section determines first and second signal properties of the received high carrier frequency signal. The processing module determines a position of the receiver device with respect to the transmitter based on the first and second signal properties and maps the position to a coordinate system.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: October 16, 2012
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Nambirajan Seshadri, Brima B. Ibrahim, John Walley, Jeyhan Karaoguz
  • Patent number: 8290498
    Abstract: A method and apparatus supporting handoff using simulcasting of multimedia information via a broadband access gateway are disclosed. A broadband access gateway supporting both a personal area network and a broadband network may receive multimedia information simultaneously transmitted to an associated access device by a wide area network. The broadband access gateway may detect the presence of the associated access device, and the associated access device may accept the received multimedia information. The broadband access gateway may send the received multimedia information to the associated access device, and may communicate with the wide area network regarding the presence within the personal area network of the associated access device.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: October 16, 2012
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, James D. Bennett, Nambirajan Seshadri
  • Publication number: 20120246309
    Abstract: A system and method for the aggregation of multimedia information storage via a broadband access gateway is disclosed. Information about storage resources accessible to a broadband access gateway may be collected and used in selecting storage capacity used for storing multimedia information such as, for example, streaming video, broadcast video, digitized video, digitized audio, text, and digitized images. The gateway may manage storage and retrieval of the multimedia information based upon user defined criteria and characteristics of the available storage resources. Multimedia information may be parsed for storage across multiple storage resources, and the location and nature of the storage resources used for storage of multimedia information items may be unknown to the user. Storage services accessible via a broadband connection may also be used as storage resources.
    Type: Application
    Filed: June 7, 2012
    Publication date: September 27, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, Marc Abrams, Nambirajan Seshadri
  • Publication number: 20120230442
    Abstract: A system and method for communicating with a second communication system utilizing a plurality of antennas. Various aspects of the present invention may comprise determining whether communicating with the second communication system utilizing a plurality of antennas in a first configuration, which comprises a beam-forming configuration, is preferable to utilizing a plurality of antennas in a second configuration, which comprises a MIMO or MISO configuration. If it is determined that the first configuration is preferable to the second configuration, the communication system may be configured to communicate with the second communication system by utilizing at least a portion of the plurality of antennas in the first configuration. If it is determined that the second configuration is preferable to the first configuration, then the communication system may be configured to communicate with the second communication system by utilizing at least a portion of the plurality of antennas in the second configuration.
    Type: Application
    Filed: May 23, 2012
    Publication date: September 13, 2012
    Applicant: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri, James D. Bennett
  • Patent number: 8265186
    Abstract: Block-encoded transmissions of a multi-antenna terminal unit are effectively detected in the presence of co-channel interfering transmissions when the base station has a plurality of antennas, and interference cancellation is combined with maximum likelihood decoding. More specifically, the signals received at the base station antennas are combined in a linear combination that relates to the channel coefficients between the various transmitting terminal units and the base antennas. By selecting proper coefficients for the linear combination and choosing probable transmitted signals that minimize a minimum mean squared error function, the signals of the various terminal units are canceled when detecting the signal of a particular unit. In another embodiment of the invention, the basic approach is used to obtain an initial estimate of the signals transmitted by one terminal unit, and the contribution of those signals is removed from the received signals prior to detecting the signals of other terminal units.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: September 11, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Ayman F. Naguib, Nambirajan Seshadri
  • Patent number: 8260220
    Abstract: A communication device includes memory, an input interface, a processing module, and a transmitter. The processing module receives a digital signal from the input interface, wherein the digital signal includes a desired digital signal component and an undesired digital signal component. The processing module identifies one of a plurality of codebooks based on the undesired digital signal component. The processing module then identifies a codebook entry from the one of the plurality of codebooks based on the desired digital signal component to produce a selected codebook entry. The processing module then generates a coded signal based on the selected codebook entry, wherein the coded signal includes a substantially unattenuated representation of the desired digital signal component and an attenuated representation of the undesired digital signal component. The transmitter converts the coded signal into an outbound signal in accordance with a signaling protocol and transmits it.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: September 4, 2012
    Assignee: Broadcom Corporation
    Inventor: Nambirajan Seshadri
  • Publication number: 20120220334
    Abstract: A system and method for utilizing multiple communication pathways for communication hand-off (e.g., in a MIMO system). Various aspects of the present invention may comprise an access point communicating with a communication system utilizing a first number of transceivers. After determining to perform a hand-off of the communication system to a second access point, simultaneously, a second number of communication system transceivers may be utilized to communicate with the first access point and a third number of communication system transceivers may be utilized to communicate with the second access point. Various aspects of the present invention may also comprise an access point initially communicating with a communication system utilizing a first number of transceivers. After determining to hand-off the communication system, the access point may communicate with the communication system utilizing a second number of transceivers that is different from the first number of transceivers.
    Type: Application
    Filed: May 3, 2012
    Publication date: August 30, 2012
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri, James D. Bennett
  • Patent number: 8254507
    Abstract: Aspects of a system for STBC/SFBC in a communication system using angle feedback may include a receiver, which enables reception of signals via a plurality of receiving antennas. The receiver may enable computation of a rotation factor value based on the received signals and utilization of the computed rotation factor value to receive subsequent signals via the plurality of receiving antennas. The received signals may comprise preamble data. The receiver may enable computation of channel estimate values based on the received preamble data. A rotation angle value may be computed based on the computed channel estimate values. The rotation factor value may be computed based on the computed rotation angle value. The receiver may enable transmission of feedback information comprising the computed rotation factor and/or the computed rotation angle.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 28, 2012
    Assignee: Broadcom Corporation
    Inventors: Joonsuk Kim, Sirikiat Ariyavisitakul, Nambirajan Seshadri
  • Patent number: 8255558
    Abstract: Methods and systems for distributed infrastructure for streaming data via multiple access points. Aspects of one method may include apportioning multimedia information among a plurality of transmitting devices based on feedback channel information received from a destination receiving device by, for example, a transmission controller device. The transmitting devices may transmit the multimedia information to the destination receiving device. A transmitting device that may not be apportioned multimedia information may transmit a probing signal. The destination receiving device may generate feedback channel information for a transmitting device, for example, based on the multimedia information or the probing signal received from the respective transmitting device. The apportioning of the multimedia information may be dynamically adjusted based on updated feedback channel information received from the destination receiving device.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: August 28, 2012
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Hooman Honary, Nambirajan Seshadri, Jason A. Trachewsky