Patents Assigned to Broadcom
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Patent number: 9252833Abstract: Disclosed are various embodiments for providing a power-efficient driver architecture supporting rail-to-rail operation in full duplex mode. A driver is configured to drive a duplex signal over a transmission medium. A hybrid is configured to recover a received signal from the duplex signal. The received signal is generated by a remote transceiver. The driver is configured to drive the duplex signal based at least in part on the received signal recovered by the hybrid.Type: GrantFiled: May 7, 2012Date of Patent: February 2, 2016Assignee: BROADCOM CORPORATIONInventors: Hui Pan, Yuan Yao, Joseph Aziz, Derek Tam, Xin Wang, Chia-Jen Hsu
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Patent number: 9253121Abstract: A universal network interface controller (UNIC) is provided for interfacing a host computer to a switch fabric, a packet network, or both. The UNIC includes encapsulation logic configured to encapsulate a CBP communication for transmission as switch fabric data on the switch fabric. Finally, the UNIC includes transmit logic configured to transmit the encapsulated CBP communication to the remote CBP device using the switch fabric.Type: GrantFiled: December 31, 2012Date of Patent: February 2, 2016Assignee: Broadcom CorporationInventors: Nicholas Ilyadis, Ariel Hendel, Karagada Ramarao Kishore, Gregory John Scherer
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Patent number: 9253072Abstract: In the subject system for polarity detection, link initialization between a primary device and a secondary device may be performed in at least two stages, a half-duplex stage when only the primary device transmits initialization signals and any encoded handshaking signals may be set to false, and a full-duplex stage when both devices may transmit initialization signals. The secondary device may perform polarity detection during the half-duplex stage. If the secondary device determines that the polarities of the received signals are reversed, the secondary device may reverse the polarities of any signals subsequently received from, and transmitted to, the primary device. In this manner, the polarities can be corrected for both devices during the half-duplex stage by the secondary device. The secondary device may initiate the full-duplex link initialization stage, during which any handshaking signals may be exchanged, by transmitting signals to the primary device.Type: GrantFiled: October 23, 2013Date of Patent: February 2, 2016Assignee: Broadcom CorporationInventors: Xiaotong Lin, Mehmet Vakif Tazebay
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Patent number: 9253785Abstract: Embodiments enable cooperative transmissions from a group of cells (can include the serving cell and one or more neighboring cells) to a user equipment (UE). The cooperative transmissions emulate Hybrid Automatic Repeat Request (HARQ) transmissions to the UE. Specifically, when the UE is experiencing high interference, the UE's serving cell can create a transmit incremental redundancy (IR) group for the UE, which is used to transmit information in a HARQ-like fashion to the UE. Because interference is reduced, the UE can decode the information at a lower coding rate and higher coding gain.Type: GrantFiled: May 3, 2013Date of Patent: February 2, 2016Assignee: Broadcom CorporationInventors: Louay Jalloul, Djordje Tujkovic, Ahmad Mohammed
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Patent number: 9253795Abstract: A method, apparatus and computer program product are provided to schedule the uplink grant in a manner that efficiently utilizes uplink resources. In the context of a method from the perspective of the user equipment, an indication regarding data to be transmitted is received and a scheduling request is caused to be provided via a control channel. The scheduling request is configured to indicate a size of the data to be transmitted. In response to a grant, data may be caused to be transmitted via allocated uplink resource blocks. In the context of a method from the perspective of a base station, a scheduling request including an indication of the requested size of the uplink grant is received via a control channel. The method may cause the grant to be provided to a user equipment and, in response, may receive data from the user equipment via allocated uplink resource blocks.Type: GrantFiled: January 24, 2012Date of Patent: February 2, 2016Assignee: BROADCOM CORPORATIONInventors: Jianke Fan, Seppo Alanara
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Patent number: 9253515Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute data streams to bonded channels that are clocked independently. A system is provided for synchronizing the bonded channels.Type: GrantFiled: November 9, 2012Date of Patent: February 2, 2016Assignee: Broadcom CorporationInventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
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Publication number: 20160028449Abstract: The present invention proposes methods and devices related to improvements in coordinated multipoint transmission arrangements, and in this regard proposes a device, including a controller module, configured to control a plurality of transmission points, each constituted by a set of at least one transmit antenna, to transmit data to another device in a coordinated transmission from at least a subset of the plurality of transmission points, wherein each subset with resources allocated thereto defines a respective coordinated transmission scheme, wherein the controller module is configured to transmit information on resources pertaining to multiple coordinated transmission schemes, and send at least one biasing parameter associated to at least one of the transmission schemes, to be applied for biasing a channel quality parameter.Type: ApplicationFiled: October 2, 2015Publication date: January 28, 2016Applicant: BROADCOM CORPORATIONInventors: Tommi KOIVISTO, Helka-Liina MAATTANEN, Mihai ENESCU
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Publication number: 20160027749Abstract: Aspects of the present invention relate to the arrangement of points of interconnection of integrated circuit die to the package in which they are enclosed. More specifically, aspects of the present invention pertain to an arrangement of bond pads over the active circuitry of an integrated circuit die, in order to permit a reduction in size of the die. An embodiment of the present invention may place a first bond pad over the active area of an integrated circuit, wherein the first bond pad is electrically coupled to a second bond pad outside of the active area of the integrated circuit. Production and delivery of the integrated circuit may proceed using the second bond pad during packaging, in parallel with the testing of packaging using the first bond pad. When processes related to the use of the first bond pad have been proven successful and sustainable, the second bond pad may be eliminated, resulting in a reduction of the size of the integrated circuit device.Type: ApplicationFiled: October 2, 2015Publication date: January 28, 2016Applicant: Broadcom CorporationInventor: Manolito M. CATALASAN
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Publication number: 20160029319Abstract: The present disclosure is directed to a method, apparatus, and system for managing wireless communications between wireless devices, including providing radiative power delivery to the wireless devices. The wireless devices may include a communication transceiver to wireless communicate with other wireless devices and a radiative power harvester to receive radiative power transmissions from the other wireless devices. The wireless devices may also include a switching unit to selectively provide a connection to the communication transceiver and the wireless power harvester based on the mode of operation of the wireless devices.Type: ApplicationFiled: October 1, 2015Publication date: January 28, 2016Applicant: Broadcom CorporationInventor: Yasantha RAJAKARUNANAYAKE
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Publication number: 20160026783Abstract: Embodiments of the present disclosure generally relate to a system, apparatus, and method for providing anti-replay protection of data stored in a non-volatile memory device. Some embodiments describe an anti-replay protection (ARP) device that may protect an external non-volatile memory device from replay attacks.Type: ApplicationFiled: March 30, 2015Publication date: January 28, 2016Applicant: Broadcom CorporationInventors: Mark BUER, Weiyang Zhou, Kunyan Liu, Jaku Jose
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Publication number: 20160028496Abstract: A communication device (e.g., a cable modem (CM)) includes a digital to analog converter (DAC) and a power amplifier (PA) that generate a signal to be transmitting via a communication interface to another communication device (e.g., cable modem termination system (CMTS)). The CM includes diagnostic analyzer that samples the signal based on a fullband sample capture corresponding to a full bandwidth and/or a subset (e.g., narrowband) sample capture to generate a fullband and/or subset signal capture (e.g., of an upstream (US) communication channel between the CM and the CMTS). The diagnostic analyzer can be configured to generate sample captures of the signal based on any desired parameter(s), condition(s), and/or trigger(s). The CM then transmits the signal to the CMTS and the fullband and/or subset signal capture to the CMTS and/or a proactive network maintenance (PNM) communication device to determine at least one characteristic associated with performance of the US communication channel.Type: ApplicationFiled: July 15, 2015Publication date: January 28, 2016Applicant: BROADCOM CORPORATIONInventors: Bruce Joseph Currivan, Richard Stephen Prodan, Leo Montreuil, Thomas Joseph Kolze, Ramon Alejandro Gomez, Jonathan Sooki Min, Fang Lu, Donald George McMullin, Kevin Lee Miller, Peter Cangiane, Mark Edward Laubach
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Publication number: 20160029380Abstract: A signaling protocol allows for speed frame exchange between different wireless communication devices within single user, multiple user, multiple access, and/or MIMO wireless communication system. A listening wireless communication device analyzes state of speed frame indicator bits within frames transmitted from a first other wireless communication device to determine the entire radio frame exchanges between that first other wireless communication device and a second other wireless communication device. The second other wireless communication device may be a hidden node relative to the listening wireless communication device such that all or less than all transmissions from the hidden node are received by the listening device. The listening wireless communication device determines the status of the communication medium (e.g.Type: ApplicationFiled: October 5, 2015Publication date: January 28, 2016Applicant: BROADCOM CORPORATIONInventors: Chiu Ngok Eric Wong, Matthew James Fischer
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Publication number: 20160028450Abstract: A wireless communication system includes an access point and first and second stations. The first station transmits a first message that includes an address of a second station as a destination address and an address of the first station as a source address. The access point forwards the message including the address of the second station address as the destination address and the address of the first station as the source address. The second station receives the message from the first station during a first time interval and receives the first message from the access point during a second time interval. The second station processes the duplicate received message to produce inbound data.Type: ApplicationFiled: September 9, 2015Publication date: January 28, 2016Applicant: BROADCOM CORPORATIONInventor: Jason A. Trachewsky
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Publication number: 20160028639Abstract: A relay wireless communication device is implemented to perform buffer management and coordination with a source wireless communication device. A relay wireless communication device (generally, a relay) informs a source wireless communication device (source) of the status of memory therein to store messages intended for a destination wireless communication device (destination). For example, the source transmits information to the relay, which buffers information before forwarding it on to the destination. This buffering may be a function of the source having additional information intended for the relay and/or destination. The relay performs appropriate signaling, such as suspend transmission requests and resume transmission requests, to inform other devices in the system of its memory storage status (e.g., such as when having an actual or anticipated overflow).Type: ApplicationFiled: October 5, 2015Publication date: January 28, 2016Applicant: BROADCOM CORPORATIONInventors: Chiu Ngok Eric Wong, Matthew James Fischer
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Publication number: 20160028739Abstract: 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: ApplicationFiled: June 1, 2015Publication date: January 28, 2016Applicant: BROADCOM CORPORATIONInventor: Xuemin (Sherman) Chen
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Patent number: 9245625Abstract: Methods, systems and computer readable storage medium embodiments for communicating over a data bus include, determining a number of changes in bit value in respective bit positions between a previous bit string and a current bit string, transmitting either the current bit string in an inverted form over the data bus if the determined number of changes in bit value exceeds a threshold or the current bit string in non-inverted form if the determined number of changes in bit value does not exceed a threshold, and transmitting an additional at least one bit along with the current bit string having a logic value that indicates whether the current bit string is in an inverted form or non-inverted form. Methods, systems, and computer readable storage medium embodiments for receiving bit strings over a bus are also disclosed.Type: GrantFiled: September 26, 2012Date of Patent: January 26, 2016Assignee: Broadcom CorporationInventor: Sachin Joshi
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Patent number: 9246714Abstract: A user equipment (UE) performs a transform domain (DFT) based method to detect the cyclic prefix (CP) length that is being used by a base station for cellular communications. The detected CP length is then used to reduce the amount of time required to complete the synchronization and cell search procedures. In particular, the UE uses the detected CP length information to obtain Cell Identification parameters (NID1, NID2) along with information including a Maximum energy Tap location and a reference signal receive power (RSRP) while completing the synchronization and cell search procedures.Type: GrantFiled: May 5, 2014Date of Patent: January 26, 2016Assignee: Broadcom CorporationInventors: C. Ashok Kumar Reddy, Anupama Lakshmanan
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Patent number: 9246810Abstract: Methods and apparatus for improving hash-based load balancing with per-hop seeding are disclosed. The methods and apparatus described herein provide a set of techniques that enable nodes to perform differing mathematical transformations when selecting a destination link. The techniques include manipulation of seeds, hash configuration mode randomization at a per node basis, per node/microflow basis or per microflow basis, seed index generation, and member selection. A node can utilize any, or all, of the techniques presented in this disclosure simultaneously to improve traffic distribution and avoid path starvation with a degree of determinism.Type: GrantFiled: March 12, 2012Date of Patent: January 26, 2016Assignee: BROADCOM CORPORATIONInventors: Brad Matthews, Puneet Agarwal
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Patent number: 9247175Abstract: A remote control with a built-in miniature television screen and sound system manages settings and display of media on an associated television screen. The remote control's user interface permits media guide perusal and channel selection for display on both of the main and miniature television screens. Media guides can be downloaded per request to, or cached within, the remote control for display on the miniature screen. The remote control supports media swapping between the main and miniature television screens and associated sound systems. The sound system of the remote control includes built in speakers and external wired and wireless headphone support. Media and media guides may be located and downloaded from Internet servers via a web browser and associated search engine tailored for remote control usage. Transcoding functionality is employed at various network nodes, such as a set top box, remote control, an intranet or Internet linked device, and television.Type: GrantFiled: November 30, 2005Date of Patent: January 26, 2016Assignee: Broadcom CorporationInventors: James D. Bennett, Jeyhan Karaoguz
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Patent number: 9244798Abstract: Disclosed is an approach for implementing a flexible parser for a networking system. A micro-core parser is implemented to process packets in a networking system. The micro-cores of the parser read the packet headers, and perform any suitably programmed tasks upon those packets and packet headers. One or more caches may be associated with the micro-cores to hold the packet headers. A dependency list is used to maintain proper ordering of packets being processed by the micro-cores.Type: GrantFiled: June 20, 2011Date of Patent: January 26, 2016Assignee: Broadcom CorporationInventors: Kaushik Kuila, David T. Hass