Patents Assigned to Broadcom
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Publication number: 20170118489Abstract: Compounding reproduction errors in the luminance of a pixel encoded by a non-constant luminance video encoder is High Dynamic Range (HDR) video content, which is starting to become more widely supported by commercially available display devices. HDR video content contains information that covers a wider luminance range than traditional, non-HDR video content known as Low Dynamic Range (LDR) video content. The present disclosure is directed to an apparatus and method for reducing errors in reproduced luminance of HDR video content (and other types of video content) at a video encoder and/or video decoder due to non-constant luminance video encoding.Type: ApplicationFiled: November 2, 2015Publication date: April 27, 2017Applicant: Broadcom CorporationInventors: Gheorghe BERBECEL, Richard Hayden Wyman
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Publication number: 20170117251Abstract: A three-dimensional (3D) integrated circuit (IC) package is disclosed that contains a plurality of encapsulated layers stacked upon each other without the use of a substrate(s). Each of the encapsulated layers contains an encapsulating material, a die, an interconnecting interface, and vertical vias. The encapsulating material forms the surfaces of an encapsulated layer and encapsulates the die. The interconnecting interface provides an interface at a surface of the encapsulated layer for the die to electrically connect to other dies or external components. The vertical vias provide a conduction path between interconnecting interfaces of different encapsulated layers.Type: ApplicationFiled: November 30, 2015Publication date: April 27, 2017Applicant: Broadcom CorporationInventors: Rezaur Rahman KHAN, Sam Ziqun ZHAO
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Publication number: 20170110384Abstract: In embodiments described herein, an integrated circuit (IC) package is provided. The IC package may include a substrate, an IC die, and a heat spreader. The IC die may have opposing first and second surfaces, where the first surface of the IC die is coupled to a surface of the substrate. The heat spreader may have a surface coupled to the second surface of the IC die by a thermal interface (TI) material. The surface of the heat spreader may have a micro-recess which may include a micro-channel or a micro-dent to direct a flow of TI material towards or away from a predetermined area of the second surface of the IC die based on temperatures of the substrate, the IC die, and/or the heat spreader.Type: ApplicationFiled: October 30, 2015Publication date: April 20, 2017Applicant: Broadcom CorporationInventors: Sam Ziqun Zhao, Rezaur Rahman Khan
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Patent number: 9628220Abstract: A device for transmit (TX) training a remote link partner (LP) includes a TX retimer module adjacent to a TX port of the device, and a receive (RX) retimer module adjacent to the TX retimer module. The RX retimer module copies first control and status data to the TX retimer module, and the TX retimer module provides second control and status data for TX training of the remote LP.Type: GrantFiled: September 17, 2014Date of Patent: April 18, 2017Assignee: Broadcom CorporationInventor: Magesh Valliappan
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Publication number: 20170104368Abstract: A wireless power receiver includes circuitry configured to receive a wirelessly induced voltage from a wireless power transmitter via a magnetically induced connection with the wireless power transmitter. It is determined that an overvoltage condition exists when the wirelessly induced voltage exceeds a threshold voltage, and the wirelessly induced voltage is reduced in response to determining that the overvoltage condition exists. The circuitry communicates the overvoltage condition to the wireless power transmitter via the magnetically induced connection while over-voltage protection is enabled.Type: ApplicationFiled: September 15, 2016Publication date: April 13, 2017Applicant: BROADCOM CORPORATIONInventors: Russell E. RADKE, Ryan DESROSIERS, Chia-Jen HSU, Desheng MA
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Patent number: 9622247Abstract: Preamble and header bit allocation for power savings within multiple user, multiple access, and/or MIMO wireless communications. Within a multi-user packet, information (e.g., partial address information) related to a recipient group of wireless communication devices (e.g., as few as one wireless communication device or any subset of a number of wireless communication devices, sometimes including all of the wireless communication devices) is emplaced within a PHY (e.g., physical layer) header of such a multi-user packet to be communicated within a multi-user (MU) environment. Such recipient indicating information can be encoded with relatively higher robustness (e.g., lower coding rates, lower ordered modulation, cyclic redundancy check (CRC), etc.) that remaining portions of the multi-user packet. Various portions of the remainder of the multi-user packet may respectively correspond to different wireless communication devices (e.g.Type: GrantFiled: December 28, 2015Date of Patent: April 11, 2017Assignee: BROADCOM CORPORATIONInventors: Joonsuk Kim, Matthew James Fischer
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Patent number: 9614662Abstract: In some aspects, the disclosure is directed to methods and systems of a multi-input receiver. In one or more embodiments, a receiver receives a plurality of signals each via a respective one of a plurality of wireless channels. In one or more embodiments, a processing stage of the receiver combines the received plurality of signals into a combined signal for input to an analog-to-digital converter (ADC) of the receiver. In one or more embodiments, the ADC generates, at a predetermined sampling frequency, samples of the combined signal. In one or more embodiments, the receiver recovers from the generated samples at least one signal component corresponding to at least one of the plurality of signals.Type: GrantFiled: April 21, 2015Date of Patent: April 4, 2017Assignee: BROADCOM CORPORATIONInventors: Frank Van der Goes, Jiangfeng Wu, David Garrett
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Patent number: 9603025Abstract: A method for synchronizing channels on unlicensed bands is described. The method includes determining whether a SCC channel has started to be used by a first network. The SCC channel is a CA channel shared with at least one other network. In response to determining that the SCC channel has been started to be used by the first network, the UE determines an off duration describing a period since a previous SCC channel ON period. A given channel ON period is a continuous period of use of the given channel by the first network, The method also includes, in response to determining that the off duration is less than a minimum threshold duration, performing fine synchronization based on CRS tracking on the SCC channel using course synchronization parameters of the previous SCC channel ON period. Apparatus and computer readable media are also described.Type: GrantFiled: November 4, 2011Date of Patent: March 21, 2017Assignee: BROADCOM CORPORATIONInventors: Gilles Charbit, Na Wei, Wei Bai, Erlin Zeng
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Patent number: 9599720Abstract: A method and apparatus for distribution and delivery of global positioning system (GPS) satellite telemetry data using a communication link between a central site and a mobile GPS receiver. The central site is coupled to a network of reference satellite receivers that send telemetry data from all satellites to the central site. The mobile GPS receiver uses the delivered telemetry data to aid its acquisition of the GPS satellite signal. The availability of the satellite telemetry data enhances the mobile receiver's signal reception sensitivity.Type: GrantFiled: June 30, 2006Date of Patent: March 21, 2017Assignee: Broadcom CorporationInventor: Frank van Diggelen
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Patent number: 9603087Abstract: A femtocell for conserving power, which includes a transmitter module configured to be inactive for periods of call inactivity and data inactivity within a corresponding femtocell geographic coverage area, and includes a monitoring device configured to monitor the femtocell geographic coverage area, and further includes a controller module configured to cause a call handover to the femtocell when a cellular handset device is functioning and is located within the femtocell geographic coverage area. The femtocell also being configured to communicate with one or more macrocell base stations, each having a corresponding macrocell, which are configured to facilitate communication between the cellular handset device and a wireless network.Type: GrantFiled: June 14, 2012Date of Patent: March 21, 2017Assignee: Broadcom CorporationInventors: Rafael Carmon, Nicholas Ilyadis
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Patent number: 9602208Abstract: A content distribution system may include a headend server and media converters, the headend server being configured to distribute content items to user devices via the media converters and gateway devices. Each of the media converters may include a media converter cache and may be coupled to the headend server and a subset of the gateway devices, where each of the user devices is communicatively coupled to one of the gateway devices. The headend server may be further configured to determine one of the content items that is expected to be requested by a group of the user devices, determine one of the media converters that is coupled, via the subset of the gateway devices, to a largest number of user devices in the group of the user devices, and coordinate storing the one of the content items in the media converter cache of the one of the media converters.Type: GrantFiled: July 22, 2013Date of Patent: March 21, 2017Assignee: BROADCOM CORPORATIONInventors: Yong Li, Xuemin Chen
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Patent number: 9601930Abstract: A wireless power transfer system is described that includes a power station and a chargeable device. The power station transmits discovery beacons in order to detect a chargeable device within its vicinity using any available communication protocols and/or standards. Once a device is discovered, the power station can perform coil selection with the device in order to select preferred coils for power transfer. In addition, the chargeable device is capable of detecting the beacon signal and providing a response to notify the power station of its presence. The chargeable device is capable of performing its own coil selection for further optimization and includes various assistance functionality to aid a user in optimizing a connection with the power station.Type: GrantFiled: September 28, 2012Date of Patent: March 21, 2017Assignee: Broadcom CorporationInventors: John Walley, Reinier Van Der Lee, Yasantha Rajakarunanayake, Vadim Bishtein
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Patent number: 9602568Abstract: A system for adaptive audio video (AV) stream processing may include at least one processor and a switch device. The switch device may be configured to route AV traffic to the processor, and to receive AV traffic from the processor and provide the AV traffic to a client device via one or more channels. The processor may monitor a transcoder buffer depth and depths of buffers associated with channels over which the AV traffic is being transmitted. The processor may adaptively modify one or more attributes associated with the AV traffic based at least on the monitored buffer depths. For example, the processor may adaptively adjust a bit rate associated with transcoding the AV traffic based at least on the transcoder buffer depth. The processor may utilize the depths of the buffers associated with the channels to adaptively adjust the amount of AV traffic provided for transmission over the channels.Type: GrantFiled: August 10, 2015Date of Patent: March 21, 2017Assignee: BROADCOM CORPORATIONInventors: Rajesh Shankarrao Mamidwar, Sanjeev Sood, Anand Tongle, David Wu, Prashant Katre
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Patent number: 9594369Abstract: An industrial process environment uses selective power-over-network (PoN) techniques to facilitate configuration, operation, communication, and other operations for the industrial nodes in the environment. The network may be an Ethernet network, and the environment may selectively deliver power-over-Ethernet as well as command, configuration, or other data over the network connection. The environment may perform the techniques over other types of networks or combinations of networks in addition to or instead of Ethernet networks.Type: GrantFiled: February 13, 2014Date of Patent: March 14, 2017Assignee: Broadcom CorporationInventors: Wael William Diab, Yasantha Rajakarunanayake, Patricia Ann Thaler
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Patent number: 9595985Abstract: Recently proposed noise-cancelling receivers report a best case trade-off between noise figure and linearity for a matched wideband receiver. These receivers are further improved using a passive front-end gain. The front-end gain reduces the power requirements of the radio frequency transconductance stage, and potentially other stages where, e.g., smaller mixer switches may be employed.Type: GrantFiled: October 14, 2015Date of Patent: March 14, 2017Assignee: BROADCOM CORPORATIONInventors: David Murphy, Hao Wu, Hooman Darabi
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Patent number: 9595924Abstract: In one embodiment, a method comprising during a first calibration instance, converting at a first transconductance stage a first output voltage from a power amplifier of a transceiver to a first set of current signals; and during a second calibration instance not overlapping the first calibration instance, converting at a second transconductance stage a second output voltage from the power amplifier to a second set of current signals.Type: GrantFiled: August 3, 2012Date of Patent: March 14, 2017Assignee: Broadcom CorporationInventors: Stephen Au, Vikram Magoon, Long Bu, Dandan Li, Weifeng Feng
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Patent number: 9594681Abstract: A device includes a memory including ways and a processor in communication with the memory. The processor is configured to execute logic. The logic can monitor a parameter of the processor or a device connected with the processor. The logic can allocate, based on the parameter, a number a ways and a size of ways of the memory for use by the processor. The logic can power down an unallocated number of ways and unused portions of the ways of the memory.Type: GrantFiled: September 14, 2015Date of Patent: March 14, 2017Assignee: BROADCOM CORPORATIONInventor: David Matthew Lewsey
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Patent number: 9596324Abstract: An apparatus and method are provided for allocating a plurality of packets to different processor threads. In operation, a plurality of packets are parsed to gather packet information. Additionally, a parse operation is performed utilizing the packet information to generate a key, and a hash algorithm is performed on this key to produce a hash. Further, the packets are allocated to different processor threads, utilizing the hash or the key.Type: GrantFiled: February 8, 2008Date of Patent: March 14, 2017Assignee: Broadcom CorporationInventors: David T. Hass, Kaushik Kuila, Ahmed Shahid
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Patent number: 9596498Abstract: Presented herein are system(s), method(s), and apparatus for a monitor with conversion capabilities for transferring data to a portable media player. In one embodiment, a monitor is presented for displaying video data. The monitor comprises at least one input, a screen, an encoder, a memory, and an interface. The at least one input receives decompressed video data. The screen displays the decompressed video data. The encoder encodes the decompressed video data. The memory stores the encoded decompressed video data. The interface transfers the encoded decompressed video data to another memory removable from the interface.Type: GrantFiled: June 7, 2011Date of Patent: March 14, 2017Assignee: BROADCOM CORPORATIONInventor: Alexander MacInnis
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Patent number: 9596694Abstract: A method and apparatus relate to coexistence of multiple RF subsystems on a communication device. An apparatus may include a plurality of radio frequency (RF) subsystems configured to receive or transmit communication signals; and an interference table indicative of zones of interference among the multiple RF subsystems, the zones of interference being based on RF measurements. At least one of the RF subsystems comprises a coexistence module configured to communicate coexistence-related messages with of the other RF subsystems, the coexistence-related messages being based on the zones of interference.Type: GrantFiled: May 15, 2015Date of Patent: March 14, 2017Assignee: BROADCOM CORPORATIONInventors: Aimin Sang, Kamesh Medapalli