Patents Assigned to Broadcom Corporation
  • Publication number: 20170229961
    Abstract: A regulator circuit includes a multiphase ramp generator circuit, an amplifier circuit configured to receive a plurality of phase sense signals and provide a plurality of respective error signals, and an adder circuit configured to receive the error signals and ramp generator signals. The ramp generator signals are received from the multiphase ramp generator circuit and the adder circuit is configured to provide a plurality of respective adjusted ramp generator signals. The regulator can be a multiphase switching regulator circuit.
    Type: Application
    Filed: March 17, 2016
    Publication date: August 10, 2017
    Applicant: BROADCOM CORPORATION
    Inventors: He Zhang, Jinghua Zhang, Yow Ching Cheng, Junle Pan, David Seng Poh Ho
  • Publication number: 20170229860
    Abstract: A system and method includes a power control circuit for controlling first power from a power supply provided to a first circuit includes a first stage and a second stage. The first stage includes a low power energy detector and a first power switch. The low power energy detector is configured to provide second power via the first switch in response to energy. The second stage includes a signal detector configured to detect a characteristic of a signal associated with the energy in response to the second power. The signal detector is configured have the first power provided to the first circuit in response to the characteristic being detected.
    Type: Application
    Filed: March 11, 2016
    Publication date: August 10, 2017
    Applicant: BROADCOM CORPORATION
    Inventors: Kambiz Vakilian, Jingguang Wang
  • Publication number: 20170207800
    Abstract: A device includes circuitry configured to implement one or more PHY communications protocols to simultaneously communicate with one or more stations via communication links on one or more wireless networks, communicate with additional devices via a backhaul network, and exchange collaboration data, including at least one of protocol data or collaborative beamforming data, with the additional devices via the backhaul network to maintain signal parameters of communications signals with the one or more stations.
    Type: Application
    Filed: February 12, 2016
    Publication date: July 20, 2017
    Applicant: BROADCOM CORPORATION
    Inventors: David C. GARRETT, Franciscus VAN DER GOES, Hooman DARABI, Ramon A. GOMEZ, Murat MESE
  • Patent number: 9712442
    Abstract: A system for efficient memory bandwidth utilization may include a depacketizer, a packetizer, and a processor core. The depacketizer may generate header information items from received packets, where the header information items include sufficient information for the processor core to process the packets without accessing the payloads from off-chip memory. The depacketizer may accumulate multiple payloads and may write the multiple payloads to the off-chip memory in a single memory transaction when a threshold amount of the payloads have been accumulated. The processor core may receive the header information items and may generate a single descriptor for accessing multiple payloads corresponding to the header information items from the off-chip memory. The packetizer may generate a header for each payload based at least on on-chip information and without accessing off-chip memory. Thus, the subject system provides efficient memory bandwidth utilization, e.g.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: July 18, 2017
    Assignee: Broadcom Corporation
    Inventors: David Wu, Darren Duane Neuman, Flaviu Dorin Turean, Rajesh Shankarrao Mamidwar, Anand Tongle, Predrag Kostic
  • Publication number: 20170199226
    Abstract: The present disclosure describes a semiconductor wafer testing environment for routing signals used for testing integrated circuits formed onto a semiconductor wafer. The semiconductor wafer testing environment includes a semiconductor wafer tester to control overall operation and/or configuration of the semiconductor wafer testing environment and a semiconductor wafer prober to test the integrated circuits formed onto the semiconductor wafer. The semiconductor wafer prober includes a probe card having a transmission line coupler formed onto a flexible substrate. The transmission line coupler includes multiple transmission line coupling blocks that extend radially from a central point of the flexible substrate in a circular manner.
    Type: Application
    Filed: February 23, 2016
    Publication date: July 13, 2017
    Applicant: Broadcom Corporation
    Inventors: Timothy SCRANTON, Michael BOERS, Seunghwan YOON, Jesus CASTANEDA
  • Patent number: 9705890
    Abstract: A media processing device, such as a set top box, having a plurality of selectable hardware and software components for supporting multiple media pathways providing differing levels of security. In general, each security level corresponds to a particular certification service boundary definition(s) or key/authentication and security management scheme for managing resources such as hardware acceleration blocks and software interfaces. Different sets of components may be adaptively employed to ensure composited compliance with one or more security constraints and to address component unavailability. Security constraints may be applied, for example, on a source or media specific basis, and different versions of a media item may be provided over multiple pathways providing corresponding levels of security. In one embodiment, a service operator or content provider may provide requisite certification or security requirements, or otherwise assist in selection of pathway components.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: July 11, 2017
    Assignee: BROADCOM CORPORATION
    Inventor: Xuemin (Sherman) Chen
  • Publication number: 20170187472
    Abstract: The present disclosure is directed to apparatuses for preventing significant amounts of common mode noise from a PHY transceiver, such as an Ethernet PHY transceiver, from coupling to an unshielded twisted-pair cable. The apparatuses can provide common mode noise isolation, while limiting any common mode noise to differential mode noise (CM-DM) conversion. Common mode noise is generally ignored by a PHY transceiver that receives a differential data signal because of differential signaling. However, when common mode noise is converted to differential mode noise, then data errors can result. Thus, limiting any CM-DM conversion is important.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 29, 2017
    Applicant: Broadcom Corporation
    Inventors: Ahmad CHINI, Mehmet V. TAZEBAY
  • Publication number: 20170171851
    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. A WDEV determines capabilities of other WDEVs and generates a first orthogonal frequency division multiple access (OFDMA) frame that includes resource unit (RU) allocation specified for the other WDEVs and media access controller (MAC) padding (e.g., selected based on capability of at least one of the other WDEVs. The WDEV then transmits the first OFDMA frame to the other WDEVs to be processed by them and then receives a second OFDMA frame from the other WDEVs based on the RU allocation.
    Type: Application
    Filed: October 31, 2016
    Publication date: June 15, 2017
    Applicant: Broadcom Corporation
    Inventors: Zhou Lan, Matthew James Fischer
  • Patent number: 9674810
    Abstract: Disclosed is an apparatus, method and computer program which frequency shifts a received signal by a first frequency value and low-pass filters the frequency shifted received signal at a first cutoff frequency to filter out a plurality of adjacent carrier frequencies. Parallel baseband processing is then performed on two or more adjacent carrier frequencies among the plurality of adjacent carrier frequencies based upon an adjacent carrier power criterion. In certain examples, the parallel baseband processing is adapted for detecting a frequency correction burst in two or more adjacent Global System for Mobile Communications carrier frequencies or an Enhanced Data Rates for Global System for Mobile Communications Evolution carrier frequencies.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: June 6, 2017
    Assignee: BROADCOM CORPORATION
    Inventors: Carsten Juncker, Lars Christensen
  • Patent number: 9674113
    Abstract: A data bridge controls packet transfers between network fabrics forming a closed network, such as a vehicular network and a home network. The data bridge includes two or more sets of modules, each of which communicates with a different network fabric. When a packet is to be delivered between network fabrics, a first set of modules, which is used to communicate with a first network fabric, decides whether to accept the packet or discard it. If the packet is accepted, it is delivered to a second set of modules, which is used for communicating with a second network fabric. The second set of modules makes a second, independent decision about whether the packet will be sent to the second network fabric. Each set of modules can base its decision on packet content type, and may discard any packet not to be delivered to the other network.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: June 6, 2017
    Assignee: BROADCOM CORPORATION
    Inventors: Nariman Yousefi, Yongbum Kim, John Walley, Sherman (Xuemin) Chen, Wael W. Diab, Nicholas Ilyadis
  • Publication number: 20170155426
    Abstract: The present disclosure is directed to systems, apparatuses, and methods for monitoring the frequency spectrum of signals transmitted by a PLC device over a PLC network to detect and correct potential EMC regulation violations due to intermodulation (IMD) products created by the interaction of the transmitted signals with one or more non-linear devices on the PLC network. Once an IMD issue is detected, the systems, apparatuses, and methods can reduce the injected power of signals transmitted by the PLC device at the frequencies (or range of frequencies) that result in a EMC regulation violation. In addition, the systems, apparatuses, and methods can reduce the injected power of signals transmitted by the PLC device at all times or during times that the non-linear devices are interacting and generating IMD products.
    Type: Application
    Filed: June 29, 2016
    Publication date: June 1, 2017
    Applicant: Broadcom Corporation
    Inventor: Jose ABAD MOLINA
  • Publication number: 20170155243
    Abstract: A device for providing electrostatic discharge (ESD) protection includes circuitry configured to detect an occurrence of an ESD event at one or more voltage rails. An ESD clamp is activated via a clamp triggering path to provide a discharge path for an ESD current. A gate voltage of the ESD clamp is maintained greater than a predetermined threshold via a holding path in parallel with the clamp triggering path.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 1, 2017
    Applicant: BROADCOM CORPORATION
    Inventors: Junhua TAN, Hui PAN, Evelyn WANG, Abhijat GOYAL, Kent OERTLE
  • Publication number: 20170150242
    Abstract: The present disclosure is directed to a network processor for processing high volumes of traffic provided by todays access networks at (or near) wireline speeds. The network process can be implemented within a residential gateway to perform, among other functions, routing to deliver high speed data services (e.g., data services with rates up to 10 Gbit/s) from a wide area network (WAN) to end user devices in a local area network (LAN).
    Type: Application
    Filed: November 23, 2016
    Publication date: May 25, 2017
    Applicant: Broadcom Corporation
    Inventors: Asaf KOREN, Eliezer Weitz, Koby Harel, Ifat Naaman, Hilla Ben Yaacov, Tal Baum-Mizrachi, Yanai Pomeranz, Yariv Aviram, Ira Joffe, Oren Issac Wolach, Assaf Amitai, Daniel Pasternak, Yoram Gorsetman, Ryan Hirth, Gal Sitton, Mitchell Gordon McGee
  • Publication number: 20170149412
    Abstract: According to one embodiment, a compact low-power receiver comprises first and second analog circuits connected by a digitally controlled interface circuit. The first analog circuit has a first direct-current (DC) offset and a first common mode voltage at an output, and the second analog circuit has a second DC offset and a second common mode voltage at an input. The digitally controlled interface circuit connects the output to the input, and is configured to match the first and second DC offsets and to match the first and second common mode voltages. In one embodiment, the first analog circuit is a variable gain control transimpedance amplifier (TIA) implemented using a current mode buffer, the second analog circuit is a second-order adjustable low-pass filter, whereby a three-pole adjustable low-pass filter in the compact low-power receiver is effectively produced.
    Type: Application
    Filed: February 8, 2017
    Publication date: May 25, 2017
    Applicant: Broadcom Corporation
    Inventors: Mohyee MIKHEMAR, Amir HADJl-ABDOLHAMID, Hooman DARABI
  • Publication number: 20170150313
    Abstract: Wireless access points within a GPS-Unavailable environment can provide location services to user equipment devices within the environment provided that the access points are aware of their precise locations. In order to calibrate the locations of the wireless access points, a user equipment is moved to specific locations within the environment. At each of those locations, the user equipment transmits calibration signals that include the transmission location as well as a timestamp of the transmission time. Upon receipt by the access points, these signals are timestamped with a reception timestamp by a clock that is synchronized with the clock of the user equipment. After accumulating sufficient calibration information from a sufficient number of calibration locations, the access points can accurately determine their locations using trigonometric and other functions.
    Type: Application
    Filed: December 31, 2015
    Publication date: May 25, 2017
    Applicant: Broadcom Corporation
    Inventor: Nicholas Ilyadis
  • Publication number: 20170141999
    Abstract: A multi-cast multi-poll scheme for Bluetooth law energy (BLE) technology to be used by one or more mobile devices within a communication environment is disclosed. A broadcaster communication device comprises a transceiver that is configured to communicate with a plurality of recipient communication devices. The broadcaster communication device further comprises a controller that is configured to transmit a packet to the plurality of recipient communication devices and to receive, at predefined time intervals, responses from the plurality of recipient communication devices according to a pre-negotiated order without transmitting any additional packets.
    Type: Application
    Filed: March 31, 2016
    Publication date: May 18, 2017
    Applicant: Broadcom Corporation
    Inventors: Guoxin XIE, Chikan KWAN, Shawn DING, Jun GUO, Yuan ZHUANG
  • Publication number: 20170141585
    Abstract: Aspects of the subject disclosure may include, for example, a power receiving unit that includes a first wireless power receiver configured to receive a first wireless power signal in accordance with a first wireless power standard and a second wireless power receiver configured to receive a second wireless power signal in accordance with a second wireless power standard. A controllable rectifier circuit is configured to rectify either the first wireless power signal or the second wireless power signal. The controllable rectifier circuit includes a rectifier circuit configured to generate a rectified voltage from the wireless power signal, based on switch control signals. A rectifier control circuit is configured to determine whether the first wireless power signal or the second wireless power signal is received and to generate the switch control signals, based on whether the first wireless power signal or the second wireless power signal is received.
    Type: Application
    Filed: December 10, 2015
    Publication date: May 18, 2017
    Applicant: BROADCOM CORPORATION
    Inventors: John Stuart Walley, David Lee Recker
  • Publication number: 20170133884
    Abstract: In various embodiments, a power transmitting device includes a wireless power generator configured to generate a wireless power signal. A transmit resonator is configured to transmit the wireless power signal via a transmit magnetic field to a power receiving unit. The transmit resonator includes a transmit coil configured to generate that transmit magnetic field in response to the wireless power signal. At least one variable magnetic element is configured to adjust at least one property of the transmit coil by varying a reluctance of the at least one variable magnetic element in response to at least one control signal. A processing device is configured to generate the at least one control signal to select the reluctance corresponding to the at least one property of the transmit coil.
    Type: Application
    Filed: December 18, 2015
    Publication date: May 11, 2017
    Applicant: BROADCOM CORPORATION
    Inventors: John Stuart Walley, Vadim Bishtein
  • Publication number: 20170135123
    Abstract: Methods and systems for enabling coexistence of multiple potentially interfering wireless components in a device are provided. A device may include a wireless module using a proprietary protocol and one or more modules using standardized protocols. The device further includes a coexistence arbitration module configured to arbitrate access to a shared communication medium among the wireless modules based on assertion of medium access requests by the modules and the associated priority of the asserted medium access requests. When multiple medium access requests have the same priority, precedence for access to the shared medium is determined based on additional criteria. The coexistence arbitration module may be a separate module or may be integrated into another module or distributed among the modules. The device may include a host processor for altering transmission characteristics of a module to increase the likelihood that another module can receive data within a reasonable time period.
    Type: Application
    Filed: January 19, 2017
    Publication date: May 11, 2017
    Applicant: Broadcom Corporation
    Inventors: Prasanna DESAI, Kelly Coffey, Robert Hulvey, Mark Gonikberg
  • Publication number: 20170134149
    Abstract: Currently, there exists low power Ethernet PHY solutions running at 10 Gbps over twin-ax cables with SFP+ connectors. However, the cost and range of these cables, along with the size of the connectors, do not match the requirements of in-vehicle networks. If the cable is replaced with a single pair of shielded or coaxial cables, a different mechanism is needed to provide bi-directional communication. Time division duplexing (TDD) can be used to emulate full duplex communication over the single pair of cables by taking turns, in time, transmitting data over the pair of cables in each direction.
    Type: Application
    Filed: April 21, 2016
    Publication date: May 11, 2017
    Applicant: Broadcom Corporation
    Inventors: Ahmad CHINI, Mehmet V. TAZEBAY