Patents Assigned to Broadcom Corporations
  • Apparatus and Method to Monitor Thermal Runaway in a Semiconductor Device
    Publication number: 20170003339
    Abstract: An apparatus and methods are provided that more accurately detect the onset of thermal runaway in a device and timely control it. According to one embodiment, changes in stand-by current and temperature of a transistor device are measured and are used to be compared to some thresholds to trigger the device to respond before the onset thermal runaway. According to another embodiment, stand-by current is measured and is compared to some thresholds to trigger the device to respond before the onset thermal runaway.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 5, 2017
    Applicant: Broadcom Corporation
    Inventor: Sam Ziqun ZHAO
  • Adaptive transmit beamforming for frequency division duplexing systems
    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
  • Method and system for extended reach copper transceiver
    Patent number: 9537781
    Abstract: Aspects of a method and system for an extended range copper transceiver are provided. Reducing the communication rate provided by multi-rate physical (PHY) layer operations in an Ethernet transceiver may extend the range of the Ethernet transceiver over twisted-pair copper cabling from a standard connection length. The Ethernet transceiver may support up to 1 Gbps or up to 10 Gbps transmission rate over copper cabling. The multi-rate PHY layer architecture in the Ethernet transceiver may support signal-processing operations, such as echo cancellation and/or equalization, which may be applied to the reduced communication rate to enable range extension. The reduced communication rate may be achieved by reducing the symbol rate provided by the multi-rate PHY layer operations. Reducing the communication rate may also enable utilizing greater insertion loss cabling for a standard connection length.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 3, 2017
    Assignee: Broadcom Corporation
    Inventors: Bruce Conway, Minshine Shih, Scott Powell, Ali Abaye, Seyed Hamidi
  • Flashless optical network unit
    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
  • APPARATUS AND METHOD FOR WIRED DATA COMMUNICATION
    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
  • Frequency Multiplier for a Phase-Locked Loop
    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
  • Beamforming feedback tone/sub-carrier location within wireless communications
    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
  • Relay architectures for mobile wireless networks
    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
  • Methods and apparatuses for switch power down
    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
  • Communication network having proximity service discovery and device self-organization
    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
  • Reducing complexity and power consumption in cellular networks with carrier aggregation
    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
  • Receiver-aided multi-user MIMO and coordinated beamforming
    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
  • METHOD AND APPARATUS FOR DISCOVERING DEVICES AND APPLICATION USERS
    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
  • Game console and gaming object with motion prediction modeling and methods for use therewith
    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
  • Radio receiver co-existence
    Patent number: 9525447
    Abstract: Because of associated disadvantages of narrow-band off-chip radio-frequency (RF) filtering, a mixer-first receiver front-end designed to tolerate blockers with reduced gain compression and noise factor degradation is disclosed. The mixer-first receiver front-end includes two separate down-conversion paths that help to reduce added noise and voltage gain prior to baseband filtering, which are critical factors in eliminating narrow-band off-chip RF filtering. The mixer-first receiver front-end can be used to support down-conversion of multiple different communication signals (e.g., cellular, WLAN, and WPAN communication) with different center frequencies.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: December 20, 2016
    Assignee: Broadcom Corporation
    Inventors: Hao Wu, Hooman Darabi
  • Oversubscribing a packet processing device to adjust power consumption
    Patent number: 9525593
    Abstract: Embodiments are directed to saving power consumption in packet processing devices. A method for controlling power consumption of a packet processing device includes determining a power-save link utilization based upon one or more power-save enabled links of the packet processing device, determining an aggregate minimum processing bandwidth for the packet processing device based at least upon the determined power-save link utilization, and adjusting a processing capacity of the packet processing device based upon the determined aggregate minimum processing bandwidth, wherein the power consumption is changed by the adjusting. System and computer program product embodiments are also disclosed.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: December 20, 2016
    Assignee: Broadcom Corporation
    Inventors: Wael Diab, Nicholas Ilyadis, Eugene Opsasnick
  • Pre-Emphasis and Equalization for DRAM
    Publication number: 20160365137
    Abstract: The present disclosure is directed to apparatuses and methods to pre-compensate and/or post-compensate for inter-symbol interference (ISI). The apparatuses and methods of the present disclosure can be implemented as part of an I/O interface in a memory or memory controller, including dynamic random access memory (DRAM).
    Type: Application
    Filed: June 9, 2016
    Publication date: December 15, 2016
    Applicant: Broadcom Corporation
    Inventor: Reinhard C. SCHUMANN
  • Non-Binary LDPC Codes Over Non-Associative Finite Division Near Rings
    Publication number: 20160365873
    Abstract: The present disclosure is directed to an apparatus and method for decoding non-binary LDPC codes over non-associative finite division near rings. A non-associative finite division near ring is a type of algebraic structure that includes a finite set of elements on which the operations of addition and multiplication are defined. The operation of addition is commutative, associative, and closed, and may have an additive identity for all elements in the finite set. The operation of multiplication is closed but not commutative or associative, and has a multiplicative inverse but not a multiplicative identity for all elements in the finite set. The two operations of addition and multiplication may be related by the distributive property.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 15, 2016
    Applicant: Broadcom Corporation
    Inventors: Matthias KORB, Andrew Blanksby
  • Application layer integration into a multi-rat access and handover environment
    Patent number: 9521268
    Abstract: A wireless communication device communicating with a serving base station in a wireless communication environment may have one or more applications running. When seeking to handover from the serving base station to a target base station, the wireless communication device adjusts the configurations of the applications based on the new communication link properties. Likewise, when an application is loaded that prefers communication link properties that exceeds a current communication link's capabilities, the wireless communication device may seek out and hand over to other communication links. By cooperatively coordinating the functionality of installed applications with communication link properties, the wireless communication device can maintain high levels of device and application functionality.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: December 13, 2016
    Assignee: Broadcom Corporation
    Inventors: John Walley, Raymond Hayes, Wael Diab, Murat Mese, Kamlesh Rath, Shao-Cheng Wang
  • Including low and high-voltage CMOS devices in CMOS process
    Patent number: 9520398
    Abstract: A device includes a substrate, a deep well, a first well, and a second well. The deep well is formed in the substrate. The first well includes a first portion formed on the deep well and a second portion formed in the substrate. The second well is formed partially on the deep well. A first separator structure is formed on the deep well to isolate the first portion of the first well from the second well, and a second separator structure is formed on the substrate to isolate the second well and a second portion of the first well.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: December 13, 2016
    Assignee: Broadcom Corporation
    Inventor: Akira Ito