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: 20110127844
    Abstract: A low pin count IC includes a wireless power receive coil, a rectifying circuit, an output circuit, circuit modules, a power management unit (PMU), a die, and a package substrate. The wireless power receive coil generates an AC voltage from a wireless power electromagnetic signal and the rectifying circuit generates a rectified voltage from the AC voltage. The output circuit generates a DC voltage from the rectified voltage. The PMU manages distribution of the DC voltage to the circuit modules. The die supports the circuit modules and the PMU, wherein the die includes return pads for coupling to circuit return nodes and a PMU return node. The package substrate supports the die and includes return pins for coupling to the return pads, wherein at least one of the die and the package substrate support the wireless power receive coil, the rectifying circuit, and the output circuit.
    Type: Application
    Filed: June 3, 2010
    Publication date: June 2, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Publication number: 20110127845
    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: Application
    Filed: June 3, 2010
    Publication date: June 2, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Publication number: 20110127954
    Abstract: A battery includes one or more rechargeable cells, a wireless power coil, a battery charger circuit, and may further include an RFID module. The wireless power coil is operable to generate an AC voltage from a wireless power electromagnetic field. The battery charger circuit is operable to generate a battery charge voltage from the AC voltage in accordance with a battery charge control signal and, when enabled, to charge the one or more rechargeable cells via the battery charge voltage. If the battery further includes the RFID module, it is operable to generate the battery charge control signal and communicate with a wireless power transmitter device.
    Type: Application
    Filed: June 3, 2010
    Publication date: June 2, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Publication number: 20110130093
    Abstract: An integrated circuit (IC) includes a wireless power receive circuit, a wireless communication module, and a circuit module. The wireless power receive circuit generates a supply voltage from a wireless power electromagnetic signal. The wireless communication module converts inter-chip outbound data into an inter-chip outbound wireless signal; transmits the inter-chip outbound wireless signal to another IC; receives an inter-chip inbound wireless signal from the other IC; and converts the inter-chip inbound wireless signal into inter-chip inbound data. The circuit module is powered by the supply voltage and is operable to generate the inter-chip outbound data; and process the inter-chip inbound data.
    Type: Application
    Filed: June 3, 2010
    Publication date: June 2, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Publication number: 20110127843
    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: May 1, 2010
    Publication date: June 2, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: Jeyhan Karaoguz, John Walley, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Publication number: 20110127951
    Abstract: A device includes an integrated power receive circuit, a battery charger, a battery, a processing module, one or more input/output modules, and one or more circuit modules. The integrated power receive circuit is operable to generate a DC voltage from a received magnetic field in accordance with a control signal. The battery charger is operable to convert the DC voltage into a battery charge voltage. The battery is coupled to the battery charger in a first mode and is coupled to supply power in a second mode. The processing module is operable to: generate the control signal based on desired electromagnetic properties of at least one of the received magnetic field and the integrated power receive circuit; process outbound data to produce processed outbound data; and process inbound data to produce processed inbound data.
    Type: Application
    Filed: May 1, 2010
    Publication date: June 2, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Publication number: 20110127953
    Abstract: A wireless power system includes a primary device and a secondary device. The primary device includes a power conversion unit, a function module, and a transceiver. The peripheral device includes a wireless power receiver circuit, a peripheral transceiver, and a peripheral unit. The power conversion unit converts a power source into an electromagnetic signal. The functional module executes a function regarding peripheral information. The transceiver communicates information regarding the electromagnetic signal and the peripheral information. The wireless power receiver circuit converts the electromagnetic signal into a voltage. The peripheral transceiver communicates the information regarding the electromagnetic signal and the peripheral information. The peripheral unit processes the peripheral information.
    Type: Application
    Filed: May 1, 2010
    Publication date: June 2, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: John Walley, Jeyhan Karaoguz, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Reinier Van Der Lee
  • Patent number: 7952962
    Abstract: Directional microphone or microphones for position determination. One or multiple directional microphones are implemented in various locations to perform acoustic wave capture of acoustic waves associated with object (e.g., a player, a gaming object, a game controller, etc.). The generator of such acoustic waves may be co-located with the object (e.g., integrated into the object if the object is a device such as a gaming object, a game controller, etc., or integrated into clothing worn by a player such as on a hat, a jacket, etc.). The acoustic waves described herein may be generated by any number of means/devices including audio output devices, speakers, pulse wave generators, audio oscillators, etc. Moreover, such acoustic waves may be ultrasonic. A game module and/or processing module processes directional vectors associated with positions of the directional microphones when detecting relative maximum amplitude of an acoustic wave emits by an acoustic wave generator.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: May 31, 2011
    Assignee: Broadcom Corporation
    Inventors: John Walley, Ahmadreza (Reza) Rofougaran, Nambirajan Seshadri, Brima B. Ibrahim, Maryam Rofougaran, Jeyhan Karaoguz
  • Publication number: 20110119590
    Abstract: A system and method in a personal electronic book system for providing speech-controlled operation thereof. As non-limiting examples, an electronic book reader may comprise one or more modules operable to utilize a default set of speech commands and/or develop a suite of customized speech commands to be utilized for controlling operation of the electronic book reader.
    Type: Application
    Filed: November 17, 2010
    Publication date: May 19, 2011
    Inventor: Nambirajan Seshadri
  • Publication number: 20110119297
    Abstract: A system and method in a mobile computing device for utilizing personal characteristics (e.g., physical characteristics) of a person of interest to manage and/or recall information associated with such person. As non-limiting examples, a personal mobile computing device may be utilized to acquire image and/or voice information associated with a person of interest and utilize such acquired information to manage and/or recall information in a database (e.g., a contact list) associated with such person of interest.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 19, 2011
    Inventors: Robert Rango, Scott Pomerantz, Nambirajan Seshadri
  • Publication number: 20110110353
    Abstract: A wireless local area network (WLAN) transmitter includes a MAC module, a PLCP module, and a PMD module. The Medium Access Control (MAC) module is operably coupled to convert a MAC Service Data Unit (MSDU) into a MAC Protocol Data Unit (MPDU) in accordance with a WLAN protocol. The Physical Layer Convergence Procedure (PLCP) Module is operably coupled to convert the MPDU into a PLCP Protocol Data Unit (PPDU) in accordance with the WLAN protocol. The Physical Medium Dependent (PMD) module is operably coupled to convert the PPDU into a plurality of radio frequency (RF) signals in accordance with one of a plurality of operating modes of the WLAN protocol, wherein the plurality of operating modes includes multiple input and multiple output combinations.
    Type: Application
    Filed: January 13, 2011
    Publication date: May 12, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: Christopher J. Hansen, Jason A. Trachewsky, Nambirajan Seshadri, Kelly Brian Cameron, Hau Thien Tran, Ba-Zhong Shen
  • Publication number: 20110110352
    Abstract: Aspects of a method and system for redundancy-based decoding of voice content in a wireless local area network (WLAN) system are provided. A WLAN receiver may determine whether a decoded portion of a received packet comprises voice content and may select a redundancy-based decoder to decode a remaining portion of the packet when voice content is detected. The redundancy-based decoder may be a Viterbi decoder. The redundancy-based decoder may be selected to decode a determined number of subsequent packets or to decode subsequent packets for a determined amount of time. After decoding the remaining portion of the packet and any subsequent packets, the WLAN receiver may select a standard Viterbi decoder to decode additional received packets. The WLAN receiver may generate at least one signal to select the redundancy-based decoder and the standard Viterbi decoder.
    Type: Application
    Filed: January 12, 2011
    Publication date: May 12, 2011
    Inventors: Jeyhan Karaoguz, Hooman Honary, Nambirajan Seshadri, Jason A. Trachewski, Arie Heiman
  • Patent number: 7941159
    Abstract: A radio device that is capable of positioning itself within a broadcast radio system includes a receiver operable to receive a plurality of broadcast radio signals, each broadcast from a respective one of a plurality of broadcast radio signal sources. The radio device further includes processing circuitry operable to determine respective call station identification information for each of the broadcast radio signal sources from the broadcast radio signals, measure respective signal quality characteristics for each of the received broadcast radio signals, identify station position data associated with each of the broadcast radio signal sources from the respective call station identification information, and calculate a location of the radio device using the signal quality characteristics and station position data associated with at least three broadcast radio signal sources.
    Type: Grant
    Filed: June 12, 2007
    Date of Patent: May 10, 2011
    Assignee: Broadcom Corporation
    Inventors: John Walley, Nambirajan Seshadri, Scott Bibaud
  • Patent number: 7933636
    Abstract: A hand held radio host includes circuitry for selectively providing power to radiating transceiver elements and non-radiating application elements according to a plurality of power modes of operation to achieve desired effects and in a way that saves power and extends battery life. In one embodiment of the invention, the hand held host operates in one of three modes. In a full power mode, any selected application element, as well as all transceiver elements, are powered on at the same time. Thus, for example, a cell phone module, a wireless personal access network module, a wireless local area network module, and one of a pager/short message service message module may all be powered on at the same time to receive corresponding messages, calls, data sessions, etc.
    Type: Grant
    Filed: February 9, 2008
    Date of Patent: April 26, 2011
    Assignee: Broadcom Corporation
    Inventors: James D. Bennett, Nambirajan Seshadri, Jeyhan Karaoguz
  • Publication number: 20110076968
    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: December 21, 2009
    Publication date: March 31, 2011
    Applicant: BROADCOM CORPORATION
    Inventor: NAMBIRAJAN SESHADRI
  • Publication number: 20110074547
    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: Application
    Filed: November 30, 2009
    Publication date: March 31, 2011
    Applicant: BROADCOM CORPORATION
    Inventor: Nambirajan Seshadri
  • Publication number: 20110078527
    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: Application
    Filed: December 7, 2009
    Publication date: March 31, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: Nambirajan SESHADRI, Ba-Zhong SHEN, Tsung-Yi CHEN
  • Publication number: 20110078258
    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: November 30, 2009
    Publication date: March 31, 2011
    Applicant: BROADCOM CORPORATION
    Inventor: Nambirajan Seshadri
  • Publication number: 20110074573
    Abstract: A portable device includes a plurality of interface modules and a processing module. The processing module is operably coupled to detect a user input and determine a user interface mode of operation. When the user interface mode of operation is in a first mode, the processing module enables a first one of the plurality of user interface modules to process data corresponding to the user input as the first type of human sensory data and enables a second one of the plurality of user interface modules to process the data corresponding to the user input as the second type of human sensory data.
    Type: Application
    Filed: November 30, 2009
    Publication date: March 31, 2011
    Applicant: BROADCOM CORPORATION
    Inventor: Nambirajan Seshadri
  • Publication number: 20110077944
    Abstract: A speech recognition module includes an acoustic front-end module, a sound detection module, and a word detection module. The acoustic front-end module generates a plurality of representations of frames from a digital audio signal and generates speech characteristic probabilities for the plurality of frames. The sound detection module determines a plurality of estimated utterances from the plurality of representations and the speech characteristic probabilities. The word detection module determines one or more words based on the plurality of estimated utterances and the speech characteristics probabilities.
    Type: Application
    Filed: November 30, 2009
    Publication date: March 31, 2011
    Applicant: BROADCOM CORPORATION
    Inventor: Nambirajan Seshadri