Patents Assigned to Broadcom
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Patent number: 8848523Abstract: Embodiments allow for EPON MAC traffic to be sub-rated according to available bandwidth and/or transmission capacity of the physical medium. EPON MAC traffic sub-rating is performed in the PHY layer. The PHY layer performing the sub-rating may be located anywhere in the communication path supporting the end-to-end EPON MAC link. Because the sub-rating is performed in the PHY layer, the EPON MAC layer at either end of the EPON MAC link is unaware of the sub-rating being performed, and thus continues to operate as it would normally according to the IEEE standard that it implements.Type: GrantFiled: June 17, 2011Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Edward Wayne Boyd, Sanjay Goswami
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Patent number: 8848733Abstract: A dual channel mode of operation (DCM) for a home entertainment network that can provide aggregate throughput associated with channel bonding without requiring that every device in the network be capable of channel bonding.Type: GrantFiled: April 27, 2012Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Avi Kliger, Yitshak Ohana
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Patent number: 8847574Abstract: Disclosed is an electrical isolator circuit comprising an input stage comprising first and second inputs, the input stage being configured to receive an input voltage signal; an output stage comprising first and second outputs electrically connected across a load capacitor; and a DC isolator comprising a first capacitor between said first input and said first output and second capacitor between said second input and said second output. The first and second plates of each of the first, second and load capacitors are defined by conductive layers of a printed circuit board and the dielectric of each of the first, second and load capacitors are defined by a non-conducting part of the printed circuit board.Type: GrantFiled: September 23, 2010Date of Patent: September 30, 2014Assignee: Broadcom Europe LimitedInventors: Iain Barnett, Jonathan Ephraim David Hurwitz, William Michael James Holland
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Patent number: 8849290Abstract: The specification and drawings present a method, apparatus and software related product (e.g., a computer readable memory) for improving device discovery and D2D operation, e.g., in LTE wireless systems, by using control signaling provided by a wireless network (e.g., by an eNB). The discovery channel/channels which conveys discovery signal/signals are configured by a network (e.g., by the eNB) and are mapped to control channel/channels (e.g., one-to-one). After sending/receiving the discovery signal/signals, the D2D devices are monitoring control channel/channels to get current information for establishing the D2D communication among these D2D devices, the current information may include a resource allocation for the D2D communication and a device list of candidates for establishing the D2D communication.Type: GrantFiled: December 22, 2011Date of Patent: September 30, 2014Assignee: BroadcomInventors: Chun Yan Gao, Samuli Turtinen, Sami-Jukka Hakola, Timo K. Koskela, Hai Ming Wang
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Patent number: 8848624Abstract: Multi-user uplink communications within multiple user, multiple access, and/or MIMO wireless communication systems. Within such communication systems, uplink communications from various receiving wireless communication devices (e.g., STAs) to a transmitting wireless communication device (e.g., AP) may occur in any of a number of various dimensions or combinations thereof including MU-MIMO dimension and frequency dimension (asynchronous FDM or synchronous FDM). In accordance with such uplink communications, various considerations such as time synchronization, frequency synchronization, and/or power control (including wireless communication device grouping). When performing uplink asynchronous FDM signaling, power control as grouping is used. When performing uplink synchronous FDM signaling, time synchronization, frequency synchronization, and power control (such as including wireless communication device grouping) is performed.Type: GrantFiled: August 17, 2010Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Peiman Amini, Joonsuk Kim, Matthew James Fischer, Joseph Paul Lauer, Vinko Erceg
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Patent number: 8849217Abstract: There is provided a method, an apparatus and a computer program product, which introduces a phase shift between radiation phase patterns of associated antennas which are applicable in transmitting and/or receiving radio frequency signals simultaneously via an air interface, wherein the phase shift is introduced in order to obtain orthogonality between the associated radio frequency signals.Type: GrantFiled: June 22, 2011Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Seppo Rousu, Hannu Palomaa, Andrew Frankton
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Patent number: 8849347Abstract: Frequency conversion methods and systems are disclosed for a transceiver for personal area networks (PAN) and near field communication (NFC). NFC data may be received and/or transmitted via the NFC radio and PAN data may be received and/or transmitted via the PAN radio. With an integration of frequency conversion for PAN and NFC, both systems may operate from a single frequency source, thereby reducing part count and power consumption. Communication between PAN and NFC channels may be enabled via a single chip.Type: GrantFiled: January 10, 2014Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventor: Ahmadreza Rofougaran
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Patent number: 8848639Abstract: Frequency selective transmission within single user, multiple user, multiple access, and/or MIMO wireless communications. Adaptation among different respective sub-channels and/or channels is effectuated within a wireless communication system. Such a wireless communication system may include an access point (AP) and one or more wireless stations (STAs). The respective channelization employed for various communications between the devices within such a wireless communication system may be adapted based upon any of a number of considerations. For example, a receiver communication device may indicate to a transmitter communication device one or more preferred sub-channels and/or channels on which subsequent communications are to be performed.Type: GrantFiled: April 16, 2012Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Ron Porat, Matthew James Fischer, Vinko Erceg
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Patent number: 8850590Abstract: Apparatus and methods for indicating the identity of a device for receiving and retransmitting programming information. The device, which may be a set-top box or suitable communication network receiver, may be configured to receive a broadcast signal from an antenna, which may be a satellite, a cable, an electronic communication network or any other suitable source. The programming information may be any type of audio or video data, or any other suitable type of data. The broadcast signal may have multiple channels that include the programming information. Each of the channels may include a distinct watermark. The device may splice between the channels to generate a signature that the device may embed in an output data stream that may be used to display or perform the programming information.Type: GrantFiled: March 5, 2008Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventor: Marcus Kellerman
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Patent number: 8847808Abstract: A biasing circuit facilitates process, temperature, and voltage insensitive operation of a circuit block. The biasing circuit may include a replicate circuit corresponding to the circuit block. The replicate circuit may be a low complexity version of the circuit block that includes selected process, temperature, or voltage sensitive components of the circuit block. The biasing circuit enforces bias conditions on the circuit block that are informed by the response of the replicate circuit to variations in process, temperature, and voltage.Type: GrantFiled: June 10, 2013Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Hongwu Chi, Michael Ming Lee
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Patent number: 8850159Abstract: Methods and systems for latency optimized ATS usage are disclosed. Aspects of one method may include communicating a memory access request using an untranslated address and also an address translation request using the same untranslated address, where the translation request may be sent without waiting for a result of the memory access request. The memory access request and the address translation request may be made in either order. A translation agent may be used to translate the untranslated address, and the translated address may be communicated to the device that made the memory access request. The translated address may also be used to make the memory access. Accordingly, by communicating the translated address without having to wait for completion of the memory access, or vice versa, the requesting device may reduce latency for memory accesses when using untranslated addresses.Type: GrantFiled: April 29, 2008Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Jacob Carmona, Eliezer Aloni, Yuval Eliyahu, Rafi Shalom
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Patent number: 8850235Abstract: A system and method for enabling power over Ethernet (PoE) for legacy devices. Legacy devices often represent a large installed base of devices. This installed base of devices (e.g., mobile computing devices) may have little or no PoE functionality. It is a feature of the present invention that an external device (e.g., dongle) can be used to retrofit such an installed base of devices for use with state of the art PoE functionality.Type: GrantFiled: June 17, 2011Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Wael William Diab, Stephen Bailey
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Patent number: 8848411Abstract: A shared stack dual-phase CAM cell is provided. The CAM cell includes at least first and second stacks that share a single pair of pull-down transistors. At least one pair of pull-down transistors can thus be eliminated, reducing the area and power consumption of the CAM cell. Sharing of the single pair of pull-down transistors is enabled by time-staggered pre-charge and compare operations such that the pre-charge interval of the first stack corresponds to the compare interval of the second stack, and vice versa.Type: GrantFiled: September 25, 2012Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventor: Chetan Deshpande
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Patent number: 8850078Abstract: In a computing system, a method and system for a thin client and blade architecture are provided. A blade may generate video, audio, and peripheral control information that may be transmitted to a thin client (TC) by utilizing a video encoder, an audio bridge, and a peripheral bridge. Communication between the blade and the TC may occur based on a communication protocol that may operate independently of an operating system and/or applications running on the blade. The video encoder may dynamically compress the video information according to network capacity and/or video content and may dynamically select from various compression algorithms. The blade may configure and manage operations that interface with the TC. The TC may comprise a video decoder, a transceiver, a processor, a video display bridge, an audio bridge, and a peripheral bridge and may be adapted to communicate with peripheral devices.Type: GrantFiled: April 5, 2012Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Alexander MacInnis, Uri El Zur
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Patent number: 8848793Abstract: Certain aspects of a method and system for video compression with integrated picture rate up-conversion (PRUC) may include generating picture rate up-conversion (PRUC) data from received video data while the received video data is being encoded. The generated PRUC data may be encoded and communicated to a decoder in order to enable generation of a plurality of interpolated pictures. The generated encoded PRUC data may be communicated via a sideband to the decoder or by embedding the generated encoded PRUC data within the encoded received video data prior to the communication to the decoder.Type: GrantFiled: October 31, 2007Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Xuemin Chen, Brian Heng
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Patent number: 8848792Abstract: A video and graphics system has a reduced memory mode in which video images are reduced in half in horizontal direction during decoding. The video and graphics system includes a video decoder for decoding MPEG-2 video data. The video images may not be downscaled in the horizontal direction when no bi-directionally predicted pictures are used. The video and graphics system may output an HDTV video while converting the HDTV video and providing as another output having an SDTV format or another HDTV format. The output having an SDTV format may be recorded using a video cassette recorder (VCR) while the HDTV video is being displayed.Type: GrantFiled: August 1, 2011Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Alexander MacInnis, Chengfuh Jeffrey Tang, Xiaodong Xie, Vivian Hsiun
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Patent number: 8849232Abstract: A receiver uses a local oscillator to receive data transmitted via a combination of radio frequency signals using carrier aggregation. Each radio frequency signal occupies a respective radio frequency band and the radio frequency bands are arranged in two groups, a first group and a second group, separated in frequency by a first frequency region, each of the groups including one or more radio frequency bands and the first group occupying a wider frequency region than the second group. The radio frequency signals are processed using the local oscillator by setting the local oscillator, during the processing, to a frequency that is offset from the centre of a band defined by outer edges of the frequency regions occupied by the two groups.Type: GrantFiled: November 18, 2011Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Jouni Kristian Kaukovuori, Aarno Tapio Pärssinen, Antti Oskari Immonen
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Patent number: 8849205Abstract: A Bluetooth low energy (BLE) device receives advertising packets from an advertising BLE device. The BLE device filters the received advertising packets utilizing hardware to search for the advertiser. If the advertiser is not found by the hardware, the packet filtering continues utilizing firmware. Device identity information, comprising non-private and/or private device identities, of preferred BLE devices is partitioned to form a different white list for the hardware, firmware, and host, respectively, to concurrently support privacy and white listing. If the advertiser is found by the hardware, the hardware sends a response to the advertiser following a successful CRC check performed in the hardware. If the advertiser is found by the firmware, the device identity information of the advertiser is inserted in the white list for the hardware. The host may be awakened based on the device configuration and/or attribute type information of the received advertising packets.Type: GrantFiled: September 25, 2013Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Prasanna Desai, Angel Polo, Chikan Kwan, Yuan Zhuang, Ash Kapur, Norbert Grunert, Brima Ibrahim, John Walley
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Patent number: 8849194Abstract: Methods and systems for a mesh network utilizing leaky wave antennas (LWAs) are disclosed and may include configuring one or more devices as a mesh network in a wireless device coupled to a plurality of LWAs, and communicating data between said devices via the configured mesh network. A resonant frequency of the LWAs may be configured utilizing micro-electro-mechanical systems (MEMS) deflection. A plurality of the LWAs may be configured to enable beamforming. The LWAs may comprise microstrip or coplanar waveguides, wherein a cavity height of the LWAs is dependent on spacing between conductive lines in the waveguides. The plurality of LWAs may be integrated in one or more of: integrated circuits, integrated circuit packages, and printed circuit boards. The devices may be internal to the wireless device. The data may be communicated via the mesh network to devices external to the wireless device.Type: GrantFiled: June 9, 2010Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Ahmadreza Rofougaran, Maryam Rofougaran
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Patent number: 8848745Abstract: A system, method, and computer program product for allowing a first processor to access flash or other non-volatile memory that is associated with a second processor. The first processor obtains parameters that allow the initialization of an internet protocol (IP) stack. The parameters can be obtained using the trivial file transfer protocol (TFTP), for example. The first processor communicates with the second processor using a socket protocol, sending a command word that represents either a read or write command. The command word specifies where in the non-volatile memory the access is to occur, and for how many bytes. Information is then returned to the first processor, allowing the first processor to verify the success of the access.Type: GrantFiled: August 16, 2007Date of Patent: September 30, 2014Assignee: Broadcom CorporationInventors: Pinar Taskiran, Karthik Balasubramanian, Jean Cyr