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: 20140117772
    Abstract: A wireless power system includes a wireless power transmit and receive units. The wireless power transmit unit includes a wireless power transmit circuit that generates a wireless power magnetic field and a transmit unit transceiver that transceives a communication regarding the wireless power magnetic field in accordance with a control channel protocol. The wireless power receive unit includes a wireless power receive circuit, a transceiver, and a processing module. The wireless power receive circuit converts the wireless power magnetic field into a voltage.
    Type: Application
    Filed: January 15, 2014
    Publication date: May 1, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, John Walley, Ahmadreza Rofougaran, Nambirajan Seshadri, Reinierus Hendricus Maria Van Der Lee
  • Publication number: 20140105111
    Abstract: A system and method supporting over-the-air programming of access device such as, for example, a mobile multimedia handset and a wireless personal digital assistant (PDA) via a broadband access gateway, is disclosed. The broadband access gateway may receive identifying information from the access device via a personal area network and/or a wireless local area network, and may transfer the identifying information to a wide area network or a third party content provider, via a broadband network. The broadband access gateway may enable the registration of the access device with the wide area network, and may receive firmware/software updates and/or provisioning parameters via the broadband network. The gateway may then transfer the firmware/software update and/or provisioning parameters to the access device via the personal area network and/or wireless local area network.
    Type: Application
    Filed: December 19, 2013
    Publication date: April 17, 2014
    Applicant: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Marc Abrams, Nambirajan Seshadri
  • Patent number: 8694876
    Abstract: A method and apparatus for increasing the data rate and providing antenna diversity using multiple transmit antennas utilize a set of bits of a digital signal to generate a codeword. Delay elements may be provided in antenna output channels, or, with suitable code construction, delay may be omitted. n signals represent n symbols of a codeword are transmitted with n different transmit antennas. At the receiver, the noisy received sequence is decoded. The parallel transmission and channel coding enables an increase the data rate over previous techniques, and recovery even under fading conditions. The channel coding may be concatenated with error correction codes under appropriate conditions.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: April 8, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Arthur Robert Calderbank, Ayman F. Naguib, Nambirajan Seshadri, Vahid Tarokh
  • Patent number: 8687042
    Abstract: Set-top box circuitry and methods of operating the same are described that support the delivery of media content between one or more media content sources and a screen assembly of a display system. The set-top box circuitry is configured to process media content having display requirements that exceed constraints associated with a viewing environment that includes the screen assembly to produce processed media content having display requirements that do not exceed the constraints. The set-top box circuitry may also be configured to obtain substitute media content that replaces requested media content when the requested media content has display requirements exceeding constraints associated with a media content source, a communication path from the media content source, and/or the viewing environment.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: April 1, 2014
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, James D. Bennett, Nambirajan Seshadri
  • Patent number: 8676257
    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: September 26, 2012
    Date of Patent: March 18, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Nambirajan Seshadri, Brima B Ibrahim, John Walley, Jeyhan Karaoguz
  • Patent number: 8669862
    Abstract: A device includes a processing module and a radio section. The processing module obtains location information regarding the device and converts it into a location signal. The radio section converts the location signal into a location wireless signal and transmits it within a local coverage area. A handheld device may use the location wireless signal to determine its location within a building.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: March 11, 2014
    Assignee: Broadcom Corporation
    Inventor: Nambirajan Seshadri
  • Patent number: 8634783
    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: January 31, 2013
    Date of Patent: January 21, 2014
    Assignee: Broadcom Corporation
    Inventor: Nambirajan Seshadri
  • Patent number: 8630225
    Abstract: A system and method supporting over-the-air programming of access device such as, for example, a mobile multimedia handset and a wireless personal digital assistant (PDA) via a broadband access gateway, is disclosed. The broadband access gateway may receive identifying information from the access device via a personal area network and/or a wireless local area network, and may transfer the identifying information to a wide area network or a third party content provider, via a broadband network. The broadband access gateway may enable the registration of the access device with the wide area network, and may receive firmware/software updates and/or provisioning parameters via the broadband network. The gateway may then transfer the firmware/software update and/or provisioning parameters to the access device via the personal area network and/or wireless local area network.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: January 14, 2014
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Marc Abrams, Nambirajan Seshadri
  • Patent number: 8628417
    Abstract: A game device includes a first transceiver that receives gaming position data from at least one gaming object. A wireless measurement module generates device position data corresponding to the game device. A processor executes a game application that generates display signals for display on a display device, wherein the game application is based on the gaming position data and the device position data.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: January 14, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Nambirajan Seshadri, Brima B. Ibrahim, John Walley, Jeyhan Karaoguz
  • Patent number: 8618697
    Abstract: A wireless power system includes a wireless power transmit and receive units. The wireless power transmit unit includes a wireless power transmit circuit that generates a wireless power magnetic field and a transmit unit transceiver that transceives a communication regarding the wireless power magnetic field in accordance with a control channel protocol. The wireless power receive unit includes a wireless power receive circuit, a transceiver, and a processing module. The wireless power receive circuit converts the wireless power magnetic field into a voltage.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: December 31, 2013
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, John Walley, Ahmadreza Rofougaran, Nambirajan Seshadri, Reinier Hendricus Maria Van Der Lee
  • Publication number: 20130329676
    Abstract: A first access point located in a first cell may be coupled to a second access point located in a second cell. Service may be initially provided to an access device by the first access point cell. The access device may subsequently be serviced by a second access point whenever a signal for the access device falls below a specified threshold level. The second cell may be a neighboring cell, which may be located adjacent to the first cell. A first signal may be transmitted from a first beamforming antenna coupled to the first access point, to the second access point via an uplink channel. Similarly, a second signal may be transmitted from a second beamforming antenna coupled to the second access point, to the first access point via a downlink channel. The uplink and downlink channels may be a backhaul channel.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Applicant: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri
  • Patent number: 8605739
    Abstract: A method and apparatus supporting the handling of calls using 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. The gateway may store the received multimedia information locally or may communicate the multimedia information to storage.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: December 10, 2013
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, James D. Bennett, Nambirajan Seshadri
  • Publication number: 20130315144
    Abstract: A system and method supporting access to multimedia information based upon user-defined quality of service criteria is disclosed. A broadband access gateway may coordinate network behavior during the transition of an access device among communication pathways having different available capacities. Adjustments in bit rates and levels of compression may be made based upon the user-defined quality of service criteria. The user may be notified when network conditions disallow support for the desired quality of service, and may choose to override selected criteria. The user-defined quality of service criteria may be stored within the gateway and associated with a user, or may be located in the access device and accessible to the gateway.
    Type: Application
    Filed: July 30, 2013
    Publication date: November 28, 2013
    Applicant: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Marc Abrams, Nambirajan Seshadri
  • Publication number: 20130281069
    Abstract: A device includes a primary cue module, a secondary cue module, a processing module, and a wireless transceiver. The primary cue module obtains primary data regarding an object of interest and the secondary cue module obtains secondary data regarding the object of interest. The processing module is operably coupled to: convert the primary data and the secondary data into an outbound message; convert the outbound message into an outbound symbol stream; and convert an inbound symbol stream into an inbound message, wherein the inbound message includes information regarding the object of interest. The wireless transceiver is operably coupled to: convert the outbound symbol stream into an outbound wireless signal; and convert an inbound wireless signal into the inbound symbol stream.
    Type: Application
    Filed: June 19, 2013
    Publication date: October 24, 2013
    Inventor: Nambirajan Seshadri
  • Patent number: 8565747
    Abstract: A system and method supporting the advertising of extended network access to multimedia services via a broadband access gateway is disclosed. A representative embodiment of the present invention may comprise a wireless interface and may be capable of exchanging multimedia communication between the wireless interface and a broadband network. The gateway may determine available media-related services, and may transmit information about those services to an access device that may comprise, for example, a mobile multimedia handset, a personal digital assistant, and a personal computer. The access device may notify a user of the availability of the media-related services using visual and/or audible means. The gateway may receive from the access device capability and/or subscriber related information, and the gateway may transmit service information based upon the capability and/or subscriber-related information.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: October 22, 2013
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Marc Abrams, Nambirajan Seshadri
  • Publication number: 20130259168
    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: Application
    Filed: March 8, 2013
    Publication date: October 3, 2013
    Inventors: Ayman F. Naguib, Nambirajan Seshadri
  • Publication number: 20130243126
    Abstract: A method and apparatus for increasing the data rate and providing antenna diversity using multiple transmit antennas is disclosed. A set of bits of a digital signal are used to generate a codeword. Codewords are provided according to a channel code. Delay elements may be provided in antenna output channels, or with suitable code construction delay may be omitted. n signals represent n symbols of a codeword are transmitted with n different transmit antennas. At the receiver MSLE or other decoding is used to decode the noisy received sequence. The parallel transmission and channel coding enables an increase the data rate over previous techniques, and recovery even under fading conditions. The channel coding may be concatenated with error correction codes under appropriate conditions.
    Type: Application
    Filed: February 25, 2013
    Publication date: September 19, 2013
    Applicant: AT&T Corp.
    Inventors: Arthur Robert Calderbank, Ayman F. Naguib, Nambirajan Seshadri, Vahid Tarokh
  • Patent number: 8537780
    Abstract: A first access point located in a first cell may be coupled to a second access point located in a second cell. Service may be initially provided to an access device by the first access point cell. The access device may subsequently be serviced by a second access point whenever a signal for the access device falls below a specified threshold level. The second cell may be a neighboring cell, which may be located adjacent to the first cell. A first signal may be transmitted from a first beamforming antenna coupled to the first access point, to the second access point via an uplink channel. Similarly, a second signal may be transmitted from a second beamforming antenna coupled to the second access point, to the first access point via a downlink channel. The uplink and downlink channels may be a backhaul channel.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: September 17, 2013
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri
  • Publication number: 20130229066
    Abstract: A wireless power system includes a wireless power transmit and receive units. The wireless power transmit unit includes a wireless power transmit circuit that generates a wireless power magnetic field and a transmit unit transceiver that transceives a communication regarding the wireless power magnetic field in accordance with a control channel protocol. The wireless power receive unit includes a wireless power receive circuit, a transceiver, and a processing module. The wireless power receive circuit converts the wireless power magnetic field into a voltage.
    Type: Application
    Filed: March 27, 2013
    Publication date: September 5, 2013
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, John Walley, Ahmadreza Rofougaran, Nambirajan Seshadri, Reinier Hendricus Maria Van Der Lee
  • Patent number: 8525370
    Abstract: A circuit board assembly includes a multiple layer substrate, a wireless power transmitter control module, a wireless power coil assembly, and a plurality of ICs. The wireless power transmitter control module is supported by a layer of the multiple layer substrate and the wireless power coil assembly is fabricated on an inner layer of the multiple layer substrate. The ICs are mounted on an outer layer of the multiple layer substrate, wherein an IC of the plurality of IC is aligned to substantially overlap a coil of the wireless power coil assembly and is wirelessly powered by the wireless power transmitter control module via the coil.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: September 3, 2013
    Assignee: Broadcom Corporation
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee