Patents Assigned to Broadcom
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Publication number: 20150341841Abstract: A transceiver of an apparatus supports communication with at least one additional apparatus. A processing module processes at least a portion of media access control (MAC) header content of a MAC frame within a signal received via the at least one transceiver or generated internally. In particular, the MAC header content, and optionally the MAC payload content, is processed based on a filter and classification agreement between the apparatus and the at least one additional apparatus to classify the MAC frame.Type: ApplicationFiled: July 31, 2015Publication date: November 26, 2015Applicant: BROADCOM CORPORATIONInventors: Qi Wang, Matthew James Fischer
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Publication number: 20150341842Abstract: A wireless device includes a wireless interface, a Micro Electro-Mechanical System (MEMS) energy harvesting component, energy storage coupled to the MEMS energy harvesting component, and processing circuitry. The processing circuitry is configured to determine an amount of energy collected by the MEMS energy harvesting component or stored in the energy storage in response to an energy collection event, based upon the amount of energy collected, determine wireless communication operations, and communicate with a remote device via the wireless interface according to the determined wireless communication operations.Type: ApplicationFiled: May 14, 2015Publication date: November 26, 2015Applicant: BROADCOM CORPORATIONInventor: Pieter Vorenkamp
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Publication number: 20150341962Abstract: There are provided measures for spectrum sharing for cellular-controlled offloading using an unlicensed band. Such measures exemplarily comprise initiating an offloading of traffic from a cellular link on a cellular band to an unlicensed link on an unlicensed band, wherein the unlicensed link is synchronized with the cellular link, and sensing a channel on the unlicensed band in a symbol-synchronized sensing duration of at least one symbol length at the beginning of a predetermined subframe of the unlicensed band.Type: ApplicationFiled: July 31, 2015Publication date: November 26, 2015Applicant: BROADCOM CORPORATIONInventors: Wei ZOU, Zhenhong LI, Haifeng WANG
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Publication number: 20150341888Abstract: Aspects of a method and system for registering femtocells to provide service are provided. In this regard, a communication device may be operable to determine a plurality of femtocells within a vicinity of its location. The communication device may be operable to receive information communicated from one or more of the plurality of femtocells, which are managed by a femtocell management entity. One or more of the plurality of femtocells may be selected for transmitting and/or receiving cellular data based on the communicated information. The communicated information may comprise one or more of global navigation system satellite (GNSS) coordinates, an identification number, potential interference, power levels, location, associated communication devices, and/or directionality of antennas of the one or more femtocells.Type: ApplicationFiled: April 30, 2015Publication date: November 26, 2015Applicant: Broadcom CorporationInventors: Mark KENT, Charles Abraham, Xuemin William Chen, Wael William Diab, Vinko Erceg, Victor Hou, Jeyhan Karaoguz
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Publication number: 20150341750Abstract: A wireless communication device (WDEV) includes a communication interface and a processor, among other possible circuitries, components, elements, etc. to support communications with other WDEV (s) and to generate and process signals associated with such communications. The WDEV supports first communications with a first other WDEV and supports second communications with a second other WDEV. The WDEV processes the first communications and the second communications to determine whether the first other WDEV and the second other WDEV are substantially co-located at a physical location. When not co-located, the WDEV processes the first communications and the second communications based on at least one of a ranging or a location protocol to determine location information of the WDEV. Alternatively, when co-located, the WDEV stores information that indicates co-location of the first other WDEV and the second other WDEV.Type: ApplicationFiled: May 18, 2015Publication date: November 26, 2015Applicant: BROADCOM CORPORATIONInventors: Raymond Reynolds Hayes, Qi Wang
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Publication number: 20150340308Abstract: A reconstituted semiconductor package and a method of making a reconstituted semiconductor package are described. An array of die-attach substrates is formed onto a carrier. A semiconductor device is mounted onto a first surface of each of the die-attach substrates. An interposer substrate is mounted over each of the semiconductor devices. The interposer substrates are electrically connected to the first surface of the respective die-attach substrates. A molding compound is filled in open spaces within and between the interposer substrates mounted to their respective die-attach substrates to form an array of reconstituted semiconductor packages. Electrical connections are mounted to a second surface of the die-attach substrates. The array of reconstituted semiconductor packages is singulated through the molding compound between each of the die-attach substrates and respective mounted interposer substrates.Type: ApplicationFiled: July 3, 2014Publication date: November 26, 2015Applicant: Broadcom CorporationInventors: Edward LAW, Sam Ziqun Zhao, Kunzhong Hu, Rezaur Rahman Khan
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Publication number: 20150341982Abstract: A first wireless transceiver communicates pre-association data via a first wireless network, the pre-association data relating to a second wireless network, wherein the first wireless network supports communication via a first wireless protocol and wherein the second wireless network supports communication via a second wireless protocol that is different from the first wireless protocol. A second wireless transceiver communicates the pre-association data with the first wireless transceiver via a transceiver interface and processes the pre-association data to support an association by the second wireless transceiver with the second wireless network.Type: ApplicationFiled: July 31, 2015Publication date: November 26, 2015Applicant: BROADCOM CORPORATIONInventor: Farouk Belghoul
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Publication number: 20150341197Abstract: Short training field (STF) for use within single user, multiple user, multiple access, and/or MIMO wireless communications. An STF design as is made such that the power associated with the tone indices at the edges of the STF design is relatively less than the power associated with the tone indices more centrally located within the STF design. Also, when multiple respective operational modes are supported (e.g., 1 MHz and 2 MHz), the respective STF designs corresponding to those respective operational modes have a great deal of similarity. For example, the respective STF designs for different respective operational modes may have certain common STF tone indices among those respective STF designs.Type: ApplicationFiled: July 31, 2015Publication date: November 26, 2015Applicant: BROADCOM CORPORATIONInventors: Ron Porat, Jun Zheng
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Publication number: 20150341613Abstract: A method and system are provided in which a video processor may select a 2D video output format or a 3D video output format. The video processor may generate composited video data by combining video data from a video source, and one or both of video data from additional video sources and graphics data from graphics source(s). The video processor may select the order in which such combination is to occur. The video data from the various video sources may comprise one or both of 2D video data and 3D video data. The graphics data from the graphics sources may comprise one or both of 2D graphics data and 3D graphics data. The video processor may perform 2D-to-3D and/or 3D-to-2D format conversion when appropriate to generate the composited video data in accordance with the selected output video format.Type: ApplicationFiled: August 6, 2015Publication date: November 26, 2015Applicant: BROADCOM CORPORATIONInventors: Darren NEUMAN, Jason HERRICK, Qinghua ZHAO, Christopher PAYSON
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Patent number: 9198035Abstract: An integrated circuit radio transceiver and associated method comprises a multi-mode device operable to support personal area network communications as well as traditional wireless local area network communications. In one embodiment, IEEE 802.11 protocol IBSS communications are used to transport Bluetooth communication data packets. In another embodiment, a direct link comprising direct packet transfers without beaconing is performed between the multi-mode device and another multi-mode device. Thus, the multi-mode device is operable to establish traditional BSS communications with an Access Point in addition to establishing peer-to-peer communications with another multi-mode device to transport the Bluetooth communications over the 802.11 IBSS communication link or over an IEEE 802.11 direct communication link.Type: GrantFiled: December 12, 2013Date of Patent: November 24, 2015Assignee: Broadcom CorporationInventors: Christopher J. Hansen, Henry Ptasinski
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Patent number: 9197214Abstract: A high speed level shifter interfaces a high speed DAC to the digital information that the DAC processes. The level shifter may convert CMOS level digital representations to, for example, CML level digital representations for processing by the DAC. The level shifter conserves the voltage swing in the CMOS level representations (e.g., about 1V). The level shifter also avoids voltage overstress, using a feedback loop to constrain the voltage amplitude, and thereby facilitates the use of fast thin film transistors in its architecture.Type: GrantFiled: September 12, 2013Date of Patent: November 24, 2015Assignee: Broadcom CorporationInventors: Ali Nazemi, Kangmin Hu, Jun Cao, Afshin Doctor Momtaz
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Patent number: 9198096Abstract: A Wireless mobile communication (WMC) device may maintain user preference information, which is unique to the WMC device capabilities and the device user. WMC devices located in near proximity of each other may be enabled to form an ad hoc wireless network wherein each WMC device within the network may function as a router for other devices. Utilizing such routing capability within an ad hoc wireless network may allow WMC devices that are out of their wireless coverage area to use other WMC devices within such ad hoc wireless network to route any impending communication through such other WMC devices wherein these devices may have wireless connectivity to their coverage networks. WMC devices that are may have external connectivity may be enable to be selective in routing information and/or data from other WMC devices in the ad hoc network.Type: GrantFiled: December 30, 2013Date of Patent: November 24, 2015Assignee: Broadcom CorporationInventors: Thomas Quigley, Alexander Garland MacInnis, Arya Reza Behzad, Jeyhan Karaoguz, John Walley, Mark Buer
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Patent number: 9198149Abstract: Disclosed are various embodiments involving a two-step searcher for cell discovery. Multiple scrambling codes associated with multiple neighboring cells are obtained. Slot timing is obtained for a received signal based at least in part on a detection of primary synchronization peak energy in the received signal. One of the scrambling codes for decoding the received signal is identified based at least in part on testing multiple scrambling code hypotheses in parallel during an accumulation time period of the received signal in response to obtaining the slot timing.Type: GrantFiled: March 28, 2012Date of Patent: November 24, 2015Assignee: Broadcom CorporationInventors: Mark Hahm, Severine Catreux, Nelson Sollenberger
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Patent number: 9197368Abstract: Disclosed are various embodiments for in-band management of Ethernet links utilizing a bit-interleaved parity (BIP) block in a transmission frame. According to various embodiments, a bit-interleaved parity error code may be generated for a monitored portion of network data for transmission in a first bit-interleaved parity block. Subsequently, network management data may be encoded in a plurality of bits for transmission in a second bit-interleaved parity block according to a predefined block code, wherein the predefined block code generates the plurality of bits to maintain a DC balance between the bit-interleaved parity error code and the plurality of bits.Type: GrantFiled: October 24, 2013Date of Patent: November 24, 2015Assignee: BROADCOM CORPORATIONInventors: Ali Ghiasi, Velu Chellam Pillai
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Patent number: 9197181Abstract: A loudness enhancement system and method is described that increases the loudness of an audio signal being played back by an audio device that places limits on the dynamic range of the audio signal. In an embodiment, the loudness enhancement system and method compresses the audio signal to an adaptively-determined compression limit that is greater than or equal to a maximum desired output level and then applies an adaptively-determined degree of soft clipping to the compressed audio signal. The compression limit and degree of soft clipping may be determined based on an overload measure that is calculated for successive portions of the audio signal. The loudness enhancement system and method advantageously operates in a manner that generates less distortion than the method of simply over-driving the audio signal such that hard-clipping occurs.Type: GrantFiled: July 28, 2009Date of Patent: November 24, 2015Assignee: Broadcom CorporationInventors: Jes Thyssen, Wilfrid LeBlanc, Juin-Hwey Chen
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Patent number: 9197332Abstract: In collocated radios, interference is mitigated to permit concurrent radio operation. In response to detection of imminent transmission of interfering wireless (i.e., RF jammer) signals, gain settings of one or more stages of front-end receiver amplifiers may be quickly configured to permit concurrent frequency division operation instead of consecutive time-division operation. This expansion of concurrent operation may improve communication bandwidth and/or may produce reliable, consistent results. Gain control responsive to detection of imminent RF jamming may maintain amplification in a linear range where interference can be filtered out. Receiver gain may be shifted from a default high gain or high sensitivity setting to lower gain to maintain integrity of a signal of interest (SoI), which avoids clipping, distortion and unwanted products caused by a high power jamming signal that could otherwise make it impossible to recover the SoI.Type: GrantFiled: April 26, 2013Date of Patent: November 24, 2015Assignee: Broadcom CorporationInventors: Prasanna Desai, Gabriel Desjardins, Vincent Roussel
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Patent number: 9197179Abstract: A wireless communications transmitter is divided into N binary weighted communication signal processing paths including both fixed and variable gain communication signal processing chains. Specific bit sequences are used to select a combination of fixed and variable gain signal processing paths to adjust to a desired transmitter output power. Alternately, high and low power communication signal processing paths are chosen as needed with the high power communication signal processing path including an odd order harmonic notch filter.Type: GrantFiled: September 27, 2013Date of Patent: November 24, 2015Assignee: Broadcom CorporationInventors: Behnam Mohammadi, Masoud Kahrizi, Ahmad Mirzaei, Bernd Pregardier, John Cumming Leete
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Patent number: 9197216Abstract: A system includes an inverter element to gate forward current flow from a first signal source, and a reverse current inhibition element to block reverse current flow towards the first signal source from a second signal source.Type: GrantFiled: August 2, 2013Date of Patent: November 24, 2015Assignee: Broadcom CorporationInventor: Dario Soltesz
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Patent number: 9197561Abstract: In various embodiments, a system includes a switch comprising a resource that is shared between multiple objects. The switch comprises circuitry that determines a congestion metric for the switch in response to an amount of used of the resource by the objects. The circuitry determines a feedback parameter that is responsive to the congestion metric. The circuitry generates a congestion notification message that comprises a congestion feedback value responsive to the feedback parameter. In further embodiments, a system includes a switch that processes data for a first data link layer access network. The switch includes circuitry that identifies whether a received packet originated from a source device that shares the same network layer access layer as the switch. If the source device shares the same network layer access network as the switch, the circuitry generates a congestion notification message comprising a congestion feedback value for the switch.Type: GrantFiled: January 30, 2015Date of Patent: November 24, 2015Assignee: BROADCOM CORPORATIONInventors: Vahid Tabatabaee, Bruce Hui Kwan, Puneet Agarwal
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Patent number: 9197366Abstract: FEC (Forward Error Correction) decoder with dynamic parameters. A novel means by which FEC parameters may be encoded into, and subsequently extracted from, a signal stream to allow for adaptive changing of any 1 or more operational parameters that govern communications across a communication channel. FEC parameters are encoded directly into a data frame such that the data frame is treated identical to all other data frames within the signal stream. When the data frame actually includes FEC parameters, it is characterized as a CP (Control Packet) type. For example, when decoding an MPEG stream, an MPEG block that includes FEC parameters, that MPEG block is characterized as a CP MPEG block. The means by which FEC parameters are encoded and extracted from the signal stream allows for much easier adaptive modification of the manner by which signal are encoded, modulated, and processed within a communication system.Type: GrantFiled: July 8, 2013Date of Patent: November 24, 2015Assignee: BROADCOM CORPORATIONInventors: Hiroshi Suzuki, Alan Y. Kwentus, Stephen Edward Krafft, Kevin M. Eddy, Steven T. Jaffe