Patents Assigned to Broadcom
  • Patent number: 9220063
    Abstract: Disclosed is a method of wireless communication for use by a device and the associated device. The method includes receiving a data transfer schedule and determining that the data transfer schedule includes an isochronous traffic stream for the device. After the determining, the method includes extracting an allocation period of the isochronous traffic stream from the data transfer schedule, determining a wakeup schedule for the device having a sleep interval based on the allocation period, and entering a power save mode using the wakeup schedule. The method may further include determining that the data transfer schedule does not include an isochronous traffic stream for the device. After this determining, the method may include requesting a wakeup schedule of a source device, and determining the wakeup schedule for the device having the sleep interval based on the wakeup schedule for the source device entering a power save mode using the wakeup schedule for the device.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: December 22, 2015
    Assignee: BROADCOM CORPORATION
    Inventor: Rajesh Kumar Sinha
  • Patent number: 9219676
    Abstract: A system and method for exchanging channel, physical layer and data layer information and capabilities. The exchange of channel, physical layer and data layer capabilities enables optimal solutions for the provision of network services. In one embodiment, channel, physical layer and data layer capabilities are exchanged during an auto-negotiation process or LLDP messaging.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: December 22, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Wael William Diab, Nicholas Ilyadis, Sesha Thalpasai Panguluri
  • Patent number: 9219948
    Abstract: Certain aspects of a method and system for compression and decompression for handling web content may include a communication system that comprises a server in a server computing cloud that coordinates operation of one or more set-top boxes. The server may be operable to receive a request to display one or more frames of web content from the one or more set-top boxes. The server may be operable to receive one or more parameters associated with the one or more frames of the requested web content from the one or more set-top boxes. The server may be operable to dynamically encode at least a portion of one or more frames of the requested web content into one or more color spaces based on the received one or more parameters.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: December 22, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: David Erickson, Marcus Kellerman, Xuemin Chen, Vladimir Silyaev
  • Patent number: 9218877
    Abstract: A differential bit cell includes two memory elements that are configured to have different states. Each of the two memory elements is connected to a respective switching element. Each of these switching elements may have process variances, which may result in a degradation of read and/or write margins. To mitigate the effect of such variances, another switching element is coupled to the two memory elements and their respective switching elements in a manner that couples the aforementioned switching elements in a parallel fashion. In this way, the mismatch effects between the switching elements can be negated during read operations. During programming operations, such a configuration allows for the programming of both memory elements to different states with a single current pulse and also reduces the effective resistance of the programming path.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: December 22, 2015
    Assignee: Broadcom Corporation
    Inventors: Owen Hynes, Jonathan Schmitt
  • Patent number: 9219651
    Abstract: Training, refreshing and/or updating Ethernet link partners for silent channels and/or silent directions of channels may be determined based on control parameters. This may be used to improve energy efficiency in Ethernet communication. Control parameters may comprise a default value and/or may be determined based on prior training, refreshing and/or updating. New values for the control parameters may be generated based on a magnitude of change between current and prior control parameter values or based on performance such as bit error rate. User input may be utilized to determine when to execute the training, refreshing and/or updating. The training, refreshing and/or updating may be done for one or more of a near-end crosstalk canceller, alien near-end crosstalk canceller, far-end crosstalk canceller, alien far-end crosstalk canceller and echo canceller. After the training, refreshing and/or updating, the silent channels may transition to active and/or may remain silent.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: December 22, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Wael William Diab, Scott Powell
  • Patent number: 9220122
    Abstract: A set of allowed discovery cycles is stored in a radio network access node, the set consisting of a minimum discovery cycle and integer multiples thereof and each discovery cycle defining only one interval for discovery. The access node transmits in a cell an indication of a specific discovery cycle selected from the set. The access node configures at least one user equipment in the cell with a measurement gap chosen to overlap a subframe for discovery within the one interval for discovery of a different discovery cycle of the set that is in use in a neighbor cell.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: December 22, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Samuli Turtinen, Sami-Jukka Hakola, Timo Kalevi Koskela, Jaakko Kemppainen
  • Patent number: 9219596
    Abstract: A radio front end includes a duplexer, a tunable balancing network, a detector module, and a processing module. The duplexer is operably coupled to an antenna and is operable to provide electrical isolation between an outbound wireless signal and an inbound wireless signal. The tunable balancing network is operably coupled to the duplexer and operable to establish an impedance that substantially matches an impedance of the antenna based on a tuning signal. The detector module is operable to generate an error signal based on an electrical performance characteristic of the duplexer. The processing module is operable to generate the tuning signal based on the error signal.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: December 22, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Mohyee Mikhemar, Hooman Darabi
  • Patent number: 9219054
    Abstract: Systems, apparatuses, and methods provided for semiconductor devices and integrated circuit (IC) packages that include compliant dielectric layers. In a through silicon via interposer or substrate, a compliant dielectric material may be added to a surface of silicon material body to form a compliant dielectric layer. The compliant dielectric layer provides a thermal buffer and a stress buffer for a resulting IC package. The compliant dielectric material may be selected such that the coefficient of thermal expansion of the compliant dielectric material approximately matches the coefficient of thermal expansion of the circuit board on which the IC package is mounted. The compliant dielectric material may be selected such that it has a deformability that is greater than the silicon material body. Multiple sub-layers of compliant dielectric material may be used.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: December 22, 2015
    Assignee: Broadcom Corporation
    Inventors: Rezaur Rahman Khan, Sam Ziqun Zhao
  • Publication number: 20150365664
    Abstract: A system for performing multi-level video processing within a vehicle includes a pre-processing module for determining an encoding mode and enabling one or more levels of encoding based on the encoding mode. The pre-processing module further receives a video stream from a camera attached to the vehicle via a vehicular communication network and encodes the video stream based on the encoding mode to produce a packet stream output. The system further includes a video decoder for receiving the packet stream output and decoding the packet stream output in accordance with the encoding mode to produce a decoded video output.
    Type: Application
    Filed: August 21, 2015
    Publication date: December 17, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Nariman Yousefi, Yongbum Kim, John Walley, Sherman (Xuemin) Chen, Wael W. Diab, Nicholas Ilyadis
  • Publication number: 20150365924
    Abstract: The present invention addresses a method, apparatus and computer program product for enabling enhanced repetition transmission for downlink control signal to improve machine type communication coverage. One or a plurality of downlink control channel signaling window lengths is/are predefined, a start position of a window in which repetition of download control signal is allowed is determined based on the determined control channel signaling window length for each window length, and transmission of repetition of download control signal is caused at the determined start position in the respective obtained window length.
    Type: Application
    Filed: January 18, 2013
    Publication date: December 17, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Chunyan GAO, Na WEI, Shuang TAN, Erlin ZENG, Haiming WANG, Wei BAI
  • Publication number: 20150365849
    Abstract: An apparatus and a method is provided, by which a first type cell is controlled, wherein a plurality of second type cells are located in the same area as the first type cell, wherein control signal transmission to at least one user equipment is carried out via the first type cell and data transmission to the at least one user equipment is carried out via one of a plurality of the second type cells, and handover of data transmission of a user equipment from a source cell being one of the plurality of second type cells to a target cell being another one of the plurality of second type cells is controlled. Moreover, also an apparatus and a method of e.g., a user equipment are provided, by which a handover of data transmission from a source cell being one of the plurality of second type cells to a target cell being another one of the plurality of second type cells is performed, while maintaining control signal transmission with the first type cell.
    Type: Application
    Filed: February 7, 2013
    Publication date: December 17, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Xinying GAO, Wei BAI, Jing HAN, Lili ZHANG, Haiming WANG, Pengfei SUN
  • Publication number: 20150365857
    Abstract: Systems and techniques for link condition reporting in multiple connection systems. A base station, such as a macro eNodeB (eNB) configures measurement objects and reporting objects for macro and local area links for a user device such as a user equipment (UE). The objects relating to the secondary links are configured for use when the user device is operating in a dual connection mode. Upon detection of a triggering event when the user device is in dual connection mode, the user device reports macro and secondary link information. In some embodiments of the invention, triggering may be based on events related to a specified frequency group, or may be direct measurements related to a specified frequency group.
    Type: Application
    Filed: January 18, 2013
    Publication date: December 17, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Na WEI, Pengfei SUN, Lili ZHANG, Wei BAI, Jing HAN, Xinying GAO, Haiming WANG
  • Publication number: 20150365404
    Abstract: Systems and methods for binding a smartcard and a smartcard reader are provided. A smartcard is provision to store a first set of credentials for use in traditional transactions such as at a brick and mortar retail store and a second set of credentials for use when performing a transaction using a smartcard reader associated with a user such as an on-line transaction. The user smartcard reader registers with a smartcard issuer server by cryptographically authenticating a secure processor associated with the smartcard reader. As a result of the registration, the secure processor obtains a set of private keys associated with the second set of credentials. When a request for a authorizing a transaction via the user's smartcard reader is received, the smartcard reader cryptographically authenticates itself to the smartcard using a private key associated with a credential to be used to authorize the transaction.
    Type: Application
    Filed: August 24, 2015
    Publication date: December 17, 2015
    Applicant: Broadcom Corporation
    Inventor: Mark BUER
  • Publication number: 20150365938
    Abstract: Systems and methods for channel assignment configuration in a multiple access point (AP) environment are provided. The multiple APs can be homogeneous or heterogeneous and can implement one or more radio access technologies (RATs), including Massive Multiple Input Multiple Output (M-MIMO) RATs. A channel assignment configuration for a user equipment (UE) can identify one or more communication channels to be established to serve the UE by one or more of the APs.
    Type: Application
    Filed: June 18, 2015
    Publication date: December 17, 2015
    Applicant: Broadcom Corporation
    Inventors: Arogyaswami PAULRAJ, Murat MESE, Yan WANG, Nihar JINDAL, Louay JALLOUL, Amin MOBASHER, Sam ALEX
  • Publication number: 20150365854
    Abstract: Systems and techniques for link failure management in multiple connection systems. Upon detection of a link failure with a local area base station during a dual connection mode in which the user device is connected to a macro base station and a local area base station, a user device sends a failure indication and a measurement results report for serving and neighboring base stations to its serving macro base station, and selects a response to the failure based at least in part on evaluation information received from the macro base station. Upon detection of a link failure with a macro base station, the user device determines whether to reconnect to the macro base station or a different macro base station and whether to reconnect with the original local area base station or a different local area base station.
    Type: Application
    Filed: January 22, 2013
    Publication date: December 17, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Wei BAI, Jing HAN, Na WEI, Haiming WANG, Lili ZHANG, Xinying GAO, Pengfei SUN
  • Publication number: 20150364433
    Abstract: The present disclosure outlines various systems and methods for detecting an optical fault injection within an electronic device and/or preventing the optical fault injection from introducing an exploitable abnormality within the electronic device. These various systems and methods can include systems and methods that can detect or prevent laser injection attacks, which can include one or more small footprint complementary metal oxide silicon (CMOS) light detection circuits, or structures that can shield one or more transistors from a bottom side laser injection attack.
    Type: Application
    Filed: May 18, 2015
    Publication date: December 17, 2015
    Applicant: Broadcom Corporation
    Inventors: Nathan HINDMAN, Mark BUER
  • Publication number: 20150365178
    Abstract: An apparatus includes circuitry configured to determine that one or more neighbor transmission cells have interfering downlink data channels to be transmitted by one or more antenna groups. Virtual configuration parameters are determined for the interfering downlink data channels. The circuitry is also configured to signal, to at least one user equipment (UE) served by a serving cell that is one of the one or more neighbor transmission cells having interfering downlink data channels, the virtual configuration parameters for the interfering downlink data channels.
    Type: Application
    Filed: June 11, 2015
    Publication date: December 17, 2015
    Applicant: Broadcom Corporation
    Inventors: Helka-Liina MAATTANEN, Kari Tapio MAJONEN, Markku HEIKKILA, Mads HINTZ-MADSEN, Sami-Jukka HAKOLA, Karl Marko Juhani LAMPINEN
  • Patent number: 9215092
    Abstract: An Ethernet PHY may receive an indication from a local timing source that a local clock is suitable for propagation to a link partner. In response, a timer in the Ethernet PHY may be started. In instances that the Ethernet PHY receives, during a time period subsequent to starting the timer and before the timer reaches a predetermined value, an indication that the link partner is propagating a clock that is suitable for the Ethernet PHY to synchronize to, the Ethernet PHY may be configured as timing slave. In instances that the Ethernet PHY does not receive, during the time period subsequent to starting the timer and before the timer reaches a predetermined value, an indication that the link partner is propagating a clock that is suitable for the Ethernet PHY to synchronize to, Ethernet PHY may be configured as timing master upon the timer reaching the predetermined value.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: December 15, 2015
    Assignee: Broadcom Corporation
    Inventors: Xiaotong Lin, Mehmet Tazebay, Peiqing Wang
  • Patent number: 9215023
    Abstract: A portable computing device includes a radio frequency (RF) wired link, a data wired link, a core module, a plurality of multi-mode RF units, and a plurality of data modules. The core module is operable to communicate control information with one or more of the plurality of multi-mode RF units in a first frequency band via the RF wired link. The core module is further operable to communicate data of a wireless communication with one or more of the plurality of multi-mode RF units in a second frequency band via the RF wired link. The core module is further operable to communicate clock information to the plurality of multi-mode RF units in a third frequency band via the RF wired link.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: December 15, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Ahmadreza (Reza) Rofougaran, Maryam Rofougaran, Brima B. Ibrahim, Hooman Darabi
  • Patent number: 9214918
    Abstract: A power distributing duplexer system is provided. In some aspects, the system includes a duplexer configured to couple an antenna to a transmitter and a receiver. The system also includes a balancing network coupled to the duplexer. The balancing network includes a network impedance. The balancing network is configured to adjust the network impedance to match an antenna impedance of the antenna. The balancing network includes a plurality of balancing network modules coupled to the duplexer. Each of the plurality of balancing network modules is configured to receive a portion of an output voltage from the duplexer.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: December 15, 2015
    Assignee: Broadcom Corporation
    Inventors: Mohyee Mikhemar, Hooman Darabi