Patents Assigned to Broadcom
  • Patent number: 9536880
    Abstract: Methods of fabricating devices (e.g., FDSOI devices) having multiple threshold voltages are described. One method includes providing a first fixed charge region proximate to an interface of an insulating (e.g., buried oxide (BOX) layer) and a semiconductor substrate for a first device. The first charge region has a first configuration of fixed charges. The method also includes providing a second fixed charge region proximate to the interface of the insulating layer and the semiconductor substrate for the second device. The second charge region has a second configuration of fixed charges that is different than the first configuration.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: January 3, 2017
    Assignee: BROADCOM CORPORATION
    Inventors: Qintao Zhang, Aimin Xing
  • Patent number: 9537684
    Abstract: Embodiments of a method and apparatus for performing an adaptive transmission scheme in a frequency division duplexing communication system based on channel state information estimated using an open-loop mode are described herein. In one example, the method includes estimating an impulse response of a channel using a signal received over a first frequency band of the channel from a device, transforming the impulse response into a frequency response of the channel, and subsequently performing the adaptive transmission scheme using the frequency response to transmit a signal to the device over a second frequency band of the channel that is different from the first frequency band.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 3, 2017
    Assignee: Broadcom Corporation
    Inventors: Erik Richard Stauffer, Kamlesh Rath, Ying Xia, Bertrand Hochwald
  • Patent number: 9535680
    Abstract: A system, method, and computer program product for a flashless optical network unit (ONU) in a Passive Optical Network (PON) are provided herein. The method includes the steps of synchronizing on a downstream signal of an optical line terminal (OLT), receiving a first software from the OLT for its operation on a reserved downstream channel of the OLT, and storing the received first software in a volatile memory. The ONU does not pre-store the first software in a non-volatile memory.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: January 3, 2017
    Assignee: Broadcom Corporation
    Inventors: Eli Elmoalem, David Avishai, Assaf Koren
  • Publication number: 20160380729
    Abstract: A wireless communication device (alternatively, device, WDEV, etc.) includes at least one processing circuitry configured to support communications with other WDEV(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other WDEV(s) and to generate and process signals for such communications. The WDEV receives a null data packet (NDP) announcement frame that specifies a sub-carrier (SC) or tone grouping factor, a communication channel bandwidth, and other WDEV(s) to respond with beamforming feedback.
    Type: Application
    Filed: September 9, 2016
    Publication date: December 29, 2016
    Applicant: Broadcom Corporation
    Inventors: Ron Porat, Sriram Venkateswaran
  • Publication number: 20160380752
    Abstract: The problem with duty-cycle correction circuits used by conventional frequency doubters is that they are typically analog solutions, such as variable delay lines with long chains of inverters or buffers, that directly adjust the reference signal used by a phase-locked loop (PLL). These solutions can considerably increase the noise (e.g., thermal noise and supply noise) of the reference signal, as well as the overall power consumption and cost of the PLL. Rather than directly correct the duty-cycle of the reference signal, the present disclosure is directed to an apparatus and method for measuring the period error between adjacent cycles of a frequency doubled reference signal in terms of cycles of the output signal generated by the PLL (or some other higher frequency signal) and adjusting the division factor of the PLL frequency divider to compensate for the measured period error.
    Type: Application
    Filed: September 30, 2015
    Publication date: December 29, 2016
    Applicant: Broadcom Corporation
    Inventors: Fazil AHMAD, Pin-En SU, William HUFF, Greg UNRUH
  • Publication number: 20160380647
    Abstract: The present disclosure describes a wired communication device having media access control (MAC) circuitry and physical layer (PHY) circuitry. The MAC circuitry frames one or more data packets in accordance with a wired communication standard or protocol to provide one or more data frames. The one or more data frames include one or more packets that are separated by interpacket gaps (IPGs). The MAC circuitry selectively choses a duration of the IPGs to maintain an average IPG duration. The PHY circuitry encodes the one or more data frames in accordance with a line coding scheme that is efficiently represents different possible combinations for types of characters present in the one or more data frames.
    Type: Application
    Filed: June 22, 2016
    Publication date: December 29, 2016
    Applicant: Broadcom Corporation
    Inventors: Ankit Sajjan Kumar BANSAL, Eric A. Baden
  • Patent number: 9531523
    Abstract: A geographic region in which an access point AP lies is divided into sectors, each sector associated with a group; and a station is assigned to a group based on location information of the station relative to the sectors. The station can assign itself to a group autonomously, after determining the number of groups from signalling received from the AP. Or the AP can do the group assignments, such as by assessing distance between adjacent stations. The AP can utilize the station's location information to test whether a first link between the station and a first node of a first group is sufficient. If the test indicates that the first link is sufficient the AP can assign the station to the first group, else it will utilize the location information to test whether a second link between the station and a second node of a second group is sufficient.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: December 27, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Anna Pantelidou, Jari Tapani Westman
  • Patent number: 9532269
    Abstract: A method, apparatus and computer program product are provided for enabling efficient allocation of discovery resources for device to device communications. An example method may comprise establishing a cellular network connection to an access point. The method may further comprise establishing a local area network connection to a user equipment. Additionally, the method may comprise either receiving offloaded data for the user equipment from the access point via the cellular network connection and relaying the offloaded data to the user equipment via the local area network connection, or receiving offloaded data for the access point from the user equipment via the local area network connection and relaying the offloaded data to the access point via the cellular network connection. Similar and related example methods, example apparatuses, and example computer program products are also provided.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: December 27, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Wei Hong, Na Wei, Haiming Wang, Erlin Zeng, Wei Bai, Pengfei Sun
  • Patent number: 9531761
    Abstract: An IP multimedia gateway (IMG) determines device capabilities and proposed service priority profiles of communicatively coupled client devices. The determined device capabilities and proposed service priority profiles are transmitted to service managers for service scheduling. Device capabilities of the communicatively coupled client devices are configured or prioritized based on available actual service priority profiles from the service managers. The configured device capabilities are transmitted to the service managers for subsequent service scheduling. Services provided by the service managers are announced based on the available actual service priority profiles. The IMG communicates content for the announced services between the communicatively coupled client devices and the service managers. The IMG may allow the user of a client device to access desired content via other client devices.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: December 27, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Xuemin Chen, Gordon Yong Li, Sam Anderson, Pierre Couilaud
  • Patent number: 9532245
    Abstract: Disclosed are apparatuses, methods and computer program instructions which receive or detect an in-device coexistence interference condition change in a user equipment equipped with a plurality of transceivers, send an indication of the in-device coexistence interference condition change to an access point and receive a media access control element configured for muting/unmuting at least one of a plurality of transceivers from the access point. The condition of in-device coexistence interference relates to interference among transceivers such as a long term evolution advanced transceiver and a Bluetooth transceiver in the same user equipment. The media access control element can be configured to either promote a measurement gap pause or short discontinuous transmission during a condition of in-device coexistence interference.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: December 27, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Na Wei, Haiming Wang, Wei Hong
  • Patent number: 9529419
    Abstract: The discussion makes reference to methods and apparatuses for message-driven switch power, power control, and central processing unit (CPU)-assisted full switch power-down. The link layer in computer networking can be used to save power in switching elements.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: December 27, 2016
    Assignee: Broadcom Corporation
    Inventor: Stephen Wilson Bailey
  • Patent number: 9532396
    Abstract: A communication device configured to route communications between one or more out-of-coverage communication devices using one or more proximity services (ProSe). For example, the communication device can be configured as a mobile device-to network relay. The communication device can be configured to route communications associated with one more out-of-coverage communication devices that are serviced by the communication device. The communication device can be configured to utilize Layer 3 routing.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: December 27, 2016
    Assignee: Broadcom Corporation
    Inventors: Dutt Kalapatapu, Ahmad Rahmati, Florin Baboescu, Kamesh Medapalli
  • Patent number: 9532302
    Abstract: Methods and systems for establishing and/or maintaining communication cluster environments that support a plurality of communication devices. The plurality of communication devices can be configured to communicate with one another utilizing the communication cluster environment. The communication within the communication cluster environment can include device-to-device communications between two or more of the plurality of communication devices. Further, the device-to-device communications can utilizes one or more non-3GPP wireless communication protocols and/or standards.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 27, 2016
    Assignee: Broadcom Corporation
    Inventors: Kaveh Ghaboosi, Manish Vemulapalli, Noel James Oates, Yuqiang Tang
  • Patent number: 9532237
    Abstract: In a communications network with carrier aggregation (CA), embodiments enable the network to advertise to a supported wireless device not only whether or not aggregated component carriers allocated to the wireless are intra-band adjacent but further whether or not the allocated component carriers are collocated. Embodiments further enable the wireless to advertise its CA capabilities including the support of adjacent collocated CA and/or non-adjacent collocated CA. Embodiments thus provide systems/methods for the exploitation of special conditions provided by adjacent collocated component carriers to reduce processing complexity and power consumption for certain types of wireless device transmitter/receiver architectures and to support intra-band adjacent CA for other types of UE transmitter/receiver architectures.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 27, 2016
    Assignee: Broadcom Corporation
    Inventors: Djordje Tujkovic, Louay Jalloul, Robert Lorenz
  • Patent number: 9531619
    Abstract: A method for assessing channel performance in a network is provided. The network includes a network controller and nodes. The method preferably includes selecting a channel for assessment and allocating a first probe operation for use with the nodes. The method may also include, in response to the allocating, sending a first probe operation report message from each of the nodes to the network controller. The method may further include using the network controller to select a node to be a channel assessment operation node. In addition, the method may include selecting at least a portion of the nodes to participate in a channel assessment operation signal exchange. The method may also include moving the selected nodes to a different channel to perform a channel assessment operation on the different channel and using the channel assessment operation node to allocate a second probe operation on each of the selected nodes.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: December 27, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Avi Kliger, Philippe Klein, Yitshak Ohana
  • Patent number: 9532256
    Abstract: Embodiments include systems and methods for improving the beamforming efficiency of Multi-User Multiple Input Multiple Output (MU-MIMO) and/or Coordinate Beamforming (CB) in wireless multi-access networks. In one aspect, a receiver-aided approach for MU-MIMO and/or CB is provided. Unlike conventional MU-MIMO/CB operation which is transparent to the UE, the receiver-aided approach herein makes information about potential MU-MIMO and/or CB multi-user interference available to UEs being considered for MU-MIMO and/or CB transmission. As such, the UEs can provide Channel State Information (CSI) that is better tailored to actual data transmission conditions than in conventional operation, and the base station can make better decisions regarding MU-MIMO and/or CB operation, user selection, and transmission parameters (e.g., number of data streams, precoder matrix, etc.).
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: December 27, 2016
    Assignee: Broadcom Corporation
    Inventors: Sirikiat Ariyavisitakul, Daewon Lee
  • Patent number: 9531562
    Abstract: A transmitter for use in a cable modem termination system includes a data processing module that generates a plurality of OFDM symbols from a data packet. A probe symbol generator generates a probe symbol, as one of a plurality of probe symbol types. The probe symbol is selectively inserted within the plurality of OFDM symbols, at a pre-defined probe symbol interval.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: December 27, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Bruce Joseph Currivan, Richard Stephen Prodan, Thomas Joseph Kolze, Hanli Zou, Ramon Alejandro Gomez, Leo Montreuil, Mark Edward Laubach, Roger Wayne Fish, Lisa Voigt Denney, Niki Roberta Pantelias, Jonathan Sooki Min
  • Publication number: 20160373916
    Abstract: A method, apparatus and computer program for discovery of network devices and application user. An example method for use in an access point or station may comprise receiving a discovery request from an application, the application running thereon, the discovery request including at least one application level identifier, causing monitoring of a discovery channel for at least one device within a proximate distance, and upon discovery of a device associated with the application level ID, providing an indication to the application of the discovery of the device.
    Type: Application
    Filed: June 13, 2016
    Publication date: December 22, 2016
    Applicant: Broadcom Corporation
    Inventors: Sami-Jukka Hakola, Guillaume Sebire, Samuli Turtinen, Vlora Rexhepi
  • Patent number: 9523767
    Abstract: A game console includes a receiver that receives motion data in response to motion of a gaming object. A trajectory generation module generates trajectory data based on the motion data and based on a motion prediction model. A processor executes a gaming application based on the trajectory data to generate display data.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: December 20, 2016
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Nambirajan Seshadri, Brima B. Ibrahim, John Walley, Jeyhan Karaoguz
  • Patent number: 9525639
    Abstract: Transceiver architecture includes circuitry and a method to transmit and receive high speed WAP data over lower speed cabling such as Cat5e. The method begins by measuring quality of a wired bi-directional communications channel. The method continues by selecting a maximum possible data transmission rate over the wired bi-directional communications channel for the measured quality level and when the maximum possible data transmission rate is a reduced data transmission rate less than a maximum data transmission rate of the transceivers, proportionally adjusting clock rates of circuit elements of the first and second transceiver to transfer the data at the reduced data transmission rate. The method includes dividing data frames of the data to be transmitted N times, where N=number of layers of at least a portion of identical transceiver processing circuitry which is connected to twisted wiring pairs of the wired bi-directional communications channel.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: December 20, 2016
    Assignee: BROADCOM CORPORATION
    Inventors: Kadir Dinc, Kishore Kota, Alan Youssef Kwentus, German Stefan Otto Feyh