Patents Assigned to Broadcom
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Patent number: 9209834Abstract: The present disclosure presents symbol mapping for any desired error correction code (ECC) and/or uncoded modulation. A cross-shaped constellation is employed to perform symbol mapping. The cross-shaped constellation is generated from a rectangle-shaped constellation. Considering the rectangle-shaped constellation and its left hand side, a first constellation point subset located along that left hand side are moved to be along a top of the cross-shaped constellation while a second constellation point subset located along that left hand side are moved to be along a bottom of the cross-shaped constellation. For example, considering an embodiment having four constellation point subsets along the left hand side of the rectangle-shaped constellation, two of those subsets are moved to be along the top of the cross-shaped constellation while two other subsets of the constellation points along the left hand side are moved to be along the bottom of the cross-shaped constellation.Type: GrantFiled: May 31, 2013Date of Patent: December 8, 2015Assignee: Broadcom CorporationInventors: Tak K. Lee, Ba-Zhong Shen, Kelly Brian Cameron, Hau Thien Tran
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Patent number: 9209826Abstract: A digital-to-analog conversion circuit operates by selectively charging or discharging members of a plurality of capacitors. Charging of the capacitors occurs during a reset period while digital-to-analog conversion occurs as the capacitors are discharged. Those capacitors that are charged or discharged are selected from the plurality of capacitors based on a digital input. The analog output includes the charge discharged from the selected capacitors.Type: GrantFiled: February 13, 2015Date of Patent: December 8, 2015Assignee: Broadcom Europe LimitedInventors: Jonathan Ephraim David Hurwitz, Steven Collins
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Patent number: 9209845Abstract: Technique for calibration of a frequency converter for reducing a leakage-based non-direct-current component at an output of the frequency converter.Type: GrantFiled: December 12, 2013Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventors: Markus Rudiger Nentwig, Jouni Kristian Kaukovuori
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Patent number: 9210795Abstract: Methods, systems, and apparatuses for circuit boards are provided herein. An electrically insulating material is formed over one or more traces on a circuit board. One or more further electrically conductive features are present on the circuit board. A layer of an electrically conductive material is formed over the one or more traces that is electrically isolated from the one or more traces by the electrically insulating material, and is in electrical contact with the one or more further electrically conductive features. The electrically conductive material confines magnetic and electric fields produced when the one or more traces conduct an alternating current. By confining the magnetic and electric field distributions in this manner, problems of interference and/or crosstalk with adjacent signal traces are reduced or eliminated.Type: GrantFiled: November 29, 2012Date of Patent: December 8, 2015Assignee: Broadcom CorporationInventor: Sampath Komarapalayam Velayudham Karikalan
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Patent number: 9209897Abstract: A method for an adaptive forward error correction (FEC) in a passive optical network. The method comprises selecting an initial downstream FEC code to be applied on downstream data transmitted from an optical line terminal (OLT) to a plurality of optical network units (ONUs) of the PON; communicating the selected downstream FEC code to the plurality of ONUs; receiving at least one downstream bit error ratio (BER) value from at least one ONU of the plurality of ONUs, wherein the downstream BER value is measured respective to downstream data received at the at least one ONU; changing the selected downstream FEC code to a new downstream FEC code based on a plurality of downstream BER values measured by the at least one ONU; and communicating the new downstream FEC code to the plurality of ONUs.Type: GrantFiled: December 20, 2011Date of Patent: December 8, 2015Assignee: Broadcom CorporationInventors: Assaf Amitai, David Avishai, Eli Elmoalem
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Patent number: 9210718Abstract: A method, apparatus and non-transitory computer-readable storage medium are provided in order to manage transmission of data. In this regard, the method comprises populating a first portion of a transmission data allocation with data of a first data type associated with a first one of a plurality of transmission grants, the plurality of transmission grants defining an allowed amount of transmission data for a plurality of data types, each transmission grant associated with one or more of the data types, populating a second portion of the transmission data allocation with data of a second data type associated with a second one of the plurality of transmission grants, determining, using a processor, that additional space remains in the first portion of the transmission data allocation, and populating the transmission data allocation with data of the second data type equal to a size of the additional space.Type: GrantFiled: October 29, 2013Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventors: Keiichi Kubota, Michael Whitehead
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Patent number: 9209941Abstract: Aspects of a method and system for diversity processing utilizing a programmable interface suppression module may include one or more circuits that are operable to program an interference suppression module based on one or more interference cancellation parameters. A plurality of weighting factor values may be computed based on the one or more interference suppression parameters and a received plurality of multipath signals. A plurality of estimated signal may be generated based on the plurality of weighting factor values. A plurality of updated estimated signals may be generated based on the plurality of estimated signals. A plurality of interference suppressed signals may be generated based on the plurality of updated estimated signals.Type: GrantFiled: August 12, 2013Date of Patent: December 8, 2015Assignee: Broadcom CorporationInventors: Mark Hahm, Wei Luo
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Patent number: 9207740Abstract: A network interface includes a physical layer device coupled to a network link. A media access control module communicates with a link partner over the network link. An energy controller monitors a link utilization level of the network link and transitions, in response to the monitoring, the media access control module and the physical layer device to a low power idle mode, wherein the low power idle mode includes periodic transmission of a plurality of refresh frames in a refresh cycle and wherein at least one of the plurality of refresh frames is modified to include at least one first data payload.Type: GrantFiled: February 25, 2013Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventors: Manav, James Graba
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Patent number: 9210004Abstract: A device that identifies a current channel estimate based on previously received pilot tones; and iteratively, for each instance of receiving a set of new pilot tones: generates an updated channel estimate by replacing contributions to the current channel estimate that depend from the previously received pilot tones with contributions that depend from the set of new pilot tones; and considers for the next iteration the updated channel estimate as the current channel estimate and the set of new pilot tones as the previously received pilot tones.Type: GrantFiled: September 19, 2013Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventors: Jukka Talvitie, Toni Levanen
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Patent number: 9207433Abstract: Disclosed are various embodiments for an image capture device using a folded optical pathway. The optical pathway comprises a primary mirror and an image sensor centered on a first reflective surface of the primary mirror. The optical pathway further comprises a secondary mirror positioned with a second reflective surface facing the image sensor, the secondary mirror being centered with the primary mirror and located a first distance from the image sensor, the primary mirror extending beyond an edge of the secondary mirror.Type: GrantFiled: June 21, 2012Date of Patent: December 8, 2015Assignee: Broadcom CorporationInventor: Ilya Blayvas
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Patent number: 9210480Abstract: A video processing system includes a video encoder that encodes a video stream into an independent video layer stream and a first dependent video layer stream based on a motion vector data or grayscale and color data.Type: GrantFiled: December 20, 2007Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventors: Stephen E. Gordon, Sherman Chen, Michael Dove, David Rosmann, Thomas J. Quigley, Jeyhan Karaoguz
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Patent number: 9210716Abstract: A method for managing uplink communication in a wireless communication network is provided. The method includes selecting one or more Mobile Stations (MSs) from a plurality of MSs based on a first signal parameter corresponding to each MS of the one or more MSs, one or more second signal parameters corresponding to each MS of the one or more MSs, and one or more threshold parameters. The first signal parameter is associated with a Base Station (BS) serving a MS. Further, the one or more second signal parameters are associated with one or more BSs neighboring to the MS. The one or more threshold parameters are associated with a communication parameter. Thereafter, the method includes modifying an uplink Modulation and Coding Scheme (MCS) level of the one or more MSs.Type: GrantFiled: March 26, 2015Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventors: Louay Jalloul, Sriram Mudulodu, Sam P. Alex, Leena Zacharias, Bertrand Hochwald
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Patent number: 9210227Abstract: In automotive networking applications, data about vehicle's environment is used in conjunction with a control policy to manage the performance and power usage of a networked device. The control policy can dynamically adjust the balance between link power and performance of the device's communications interface by taking into account the vehicles current situation and user preferences, e.g. location, destination, speed, and sensor status. Controlling the balance between link power and performance of networked devices is sometimes important in maximizing power savings without unacceptably decreasing network performance.Type: GrantFiled: June 23, 2014Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventor: Wael William Diab
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Patent number: 9209867Abstract: An electronic device that includes a sensor module, a measuring module and a near field communication (NFC) device. The sensor module receives an input signal. The measuring module measures the strength of the input signal and determines whether the input meets a predefined threshold. If the strength of the input signal meets the predefined threshold, the measuring module activates the NFC device. If the strength of the input signal does not meet the predefined threshold, the measuring module de-activates the NFC device.Type: GrantFiled: June 28, 2011Date of Patent: December 8, 2015Assignee: Broadcom CorporationInventor: Philip Stewart Royston
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Patent number: 9210570Abstract: Systems and methods for implementing Bluetooth Low Energy (BLE) communications are provided. In some aspects, a method includes receiving, by a first BLE device, a first advertisement packet from a second BLE device. The first advertisement packet includes a payload encrypted based on a predetermined key. The method also includes decrypting the payload of the first advertisement packet using the predetermined key. The method also includes processing, by the first BLE device, the decrypted payload. At least one of the receiving, the decrypting, or the processing is performed without a BLE connection being established between the first BLE device and the second BLE device.Type: GrantFiled: September 9, 2013Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventors: Guoxin Xie, Angel Arturo Polo
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Patent number: 9209508Abstract: Methods and apparatus are disclosed for wirelessly communicating among integrated circuits and/or functional modules within the integrated circuits. A semiconductor device fabrication operation uses a predetermined sequence of photographic and/or chemical processing steps to form one or more functional modules onto a semiconductor substrate. The functional modules are coupled to an integrated waveguide that is formed onto the semiconductor substrate and/or attached thereto to form an integrated circuit. The functional modules communicate with each other as well as to other integrated circuits using a multiple access transmission scheme via the integrated waveguide. One or more integrated circuits may be coupled to an integrated circuit carrier to form Multichip Module. The Multichip Module may be coupled to a semiconductor package to form a packaged integrated circuit.Type: GrantFiled: September 29, 2011Date of Patent: December 8, 2015Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Arya Reza Behzad, Sam Ziqun Zhao, Jesus Alfonso Castaneda, Michael Boers
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Patent number: 9209646Abstract: A wireless communication device includes a wireless charging circuit configurable to receive a wireless power signal from a power transmitting unit and to charge the wireless communication device under control of a processing device and in conjunction with a charging session with the power transmitting unit. A wireless interface device operates under control of the processing device to establish a wireless connection with the power transmitting unit via a connection establishment procedure, wherein the wireless connection is separate from the wireless power signal. Control data is exchanged with the power transmitting unit via the wireless connection, wherein the control data is used by the processing device to implement the charging session with the wireless charging circuit. A response is generated to a disruption event of the wireless communication device that includes implementing a restoration procedure for restoring the wireless connection, without implementing the connection establishment procedure.Type: GrantFiled: August 13, 2013Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventors: Chikan Kwan, Xin Tian, Erik John Rivard, Xianbo Chen, Lih-Feng Tsaur
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Patent number: 9209876Abstract: Embodiments of a method and apparatus for selecting one of several different power constraints under which sets of complex, beam weights are normalized are described herein. The embodiments of the method and apparatus specifically select the power constraint based on a code rate used to encode information carried by a transmit signal weighted by the sets of complex, beam weights. Appropriate selection of the power constraint can improve the bit error rate (BER) or block error rate (BLER) of the decoded transmit signal at a receiver.Type: GrantFiled: December 30, 2011Date of Patent: December 8, 2015Assignee: Broadcom CorporationInventors: Louay Jalloul, Bertrand Hochwald
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Patent number: 9208982Abstract: Systems and methods for distributing power to a plurality of integrated circuit dies are provided. In some aspects, a system includes a substrate and a plurality of integrated circuit dies disposed on the substrate. Each of the plurality of integrated circuit dies includes a circuit and a target inductive element coupled to the circuit. The system also includes a power supply module configured to generate a source power signal. The system also includes at least one source inductive element configured to electromagnetically couple the source power signal to one or more of the plurality of the target inductive elements to generate one or more target power signals that supply power to one or more corresponding circuits.Type: GrantFiled: December 14, 2012Date of Patent: December 8, 2015Assignee: Broadcom CorporationInventor: Ahmadreza Rofougaran
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Patent number: 9208824Abstract: One or more methods and systems of indexing an AVC video stream are presented. In one embodiment, the method comprises identifying one or more fields within a picture of an AVC video stream. In one embodiment, a field of the one or more fields indicates the beginning of each picture. In a second embodiment, a field of the one or more fields indicates a picture type of a picture. In a third embodiment, a field of the one or more fields indicates whether a picture is a reference or a non-reference picture. By determining that a picture is a non-reference picture, the picture may be discarded, thereby reducing the memory required to implement the indexing system while increasing the available memory size. In one embodiment, a system of indexing an AVC video stream comprises a control processor, a memory, and a set of instructions resident in the memory.Type: GrantFiled: May 18, 2004Date of Patent: December 8, 2015Assignee: BROADCOM CORPORATIONInventors: Wade Keith Wan, Jiang Fu, Sherman (Xuemin) Chen