Patents Assigned to Broadcom
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Publication number: 20140167815Abstract: An integrated circuit using area reconfigurable cells of a standard cell library includes standard cells placed adjacent with one another in rows and columns. Each of the standard cells has a boundary type and each has a body having a first pair of opposite sides and a second pair of opposite sides orthogonal to the first pair of opposite sides. Each standard cell also has a spacer located adjacent to each of the first pair of opposite sides of the body. The spacer has a spacer type that corresponds to the boundary type of the standard cell. The spacer is removable from the standard cell when the spacer has a spacer type that matches another spacer of an adjacent standard cell.Type: ApplicationFiled: December 18, 2012Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventor: Paul PENZES
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Publication number: 20140169317Abstract: A method and apparatus are provided to provide for timely switching between antenna port configurations as the mode of operation of a mobile terminal changes which may, in turn, dictate different combinations of the MIMO, CoMP and/or CA capabilities. In this regard, a method is provided that includes utilizing one or more antennas in a first antenna port configuration in a first mode of operation. The method may also receive a command that triggers switching to another antenna port configuration and then determines another one of a plurality of antenna port configurations to be utilized in response to the command. The method may then utilize one or more antennas of the another one of the antenna port configurations in a second mode of operation. A corresponding apparatus and computer program product are also provided.Type: ApplicationFiled: July 25, 2011Publication date: June 19, 2014Applicant: Broadcom CorporationInventors: Chunyan Gao, Wei Bai, Juho Mikko Oskari Pirskanen, Erlin Zeng, Haiming Wang, Jing Han
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Publication number: 20140169235Abstract: A circuit for a wideband electrical balance duplexer (EBD) may include a first impedance element and a second impedance coupled between a first and a second node and a second and a third node of the bridge circuit, respectively. An antenna may be coupled between the first and a fourth node of the bridge circuit to receive and transmit RF signals. A balancing network may provide an impedance substantially matching an impedance of the antenna. The balancing network may be coupled between the third and the fourth node of the bridge circuit. The first or the second impedance elements may facilitate balancing the bridge circuit. One or more output nodes of a transmit path may be coupled to an input node of the bridge circuit. One or more input nodes of a receive path may be coupled between the second and the fourth node of the bridge circuit.Type: ApplicationFiled: December 14, 2012Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventors: Mohyee Mikhemar, Hooman Darabi
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Publication number: 20140169511Abstract: Techniques are described herein that receive communications transmitted according to different operation modes at a multi-mode, programmable receiver system. The multi-mode, programmable receiver system may receive communication signals from transmit antennas in “cells” (e.g., base station transceivers and/or the like) according to one or more operation modes, using receive antennas. The received signals may be converted and processed by various modules of the multi-mode, programmable receiver system to produce an output signal. The multi-mode, programmable receiver system includes modules that are programmable to be selectively enabled or disabled according to an operation mode in accordance with which the multi-mode, programmable receiver system operates.Type: ApplicationFiled: February 24, 2014Publication date: June 19, 2014Applicant: Broadcom CorporationInventor: Fu-Hsuan Chiu
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Publication number: 20140173676Abstract: A request for a unit of video information is received from a remote video receiver. An initial transmission rate for the unit of video information is determined based at least in part on a decoder model and a typical steady-state transmission rate for the unit of video information. The initial transmission rate is faster than the typical steady-state transmission rate. For a first time period after receiving the request, a first portion of the unit of video information is transmitted to the remote video receiver at the initial transmission rate. The first time period, the initial transmission rate, or both are determined so as not to overflow an input buffer that is based at least in part on the decoder model. For a second time period after the first time period, a second portion of the unit of video information is transmitted to the remote video receiver at the typical steady-state transmission rate.Type: ApplicationFiled: February 25, 2014Publication date: June 19, 2014Applicant: Broadcom CorporationInventor: Alexander Garland MacInnis
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Publication number: 20140170976Abstract: Apparatus for harvesting and using power in a near field communications mode, includes a host device with operating components. A first near field communication (NFC) device is contained in the host device and is configured to be selectively coupled to one of the operating components. The first NFC device harvests energy from a second NFC device and converts the harvested energy to electrical power. The first NFC device receives information from the second NFC device and power on the operating component as a function of the information received from the second NFC device. The first NFC device transfers data to or from the operating component when the operating component is powered on. The first NFC device powers off the operating component when the transfer of data between the first NFC device and the operating component has been completed.Type: ApplicationFiled: November 13, 2013Publication date: June 19, 2014Applicant: Broadcom CorporationInventor: Mohamed AWAD
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Publication number: 20140169367Abstract: Methods, systems, and computer program products for packet inspection are provided herein. The method includes the steps of receiving a first packet of a stream of packets and processing the first packet using a slow processing path. The method also includes the steps of examining a network layer or transport layer of the first packet to determine whether a protocol used by the stream of packets is relevant, and transferring subsequent packets in the stream to a fast processing path if the protocol used is not relevant. The method further includes the steps of examining an application layer of a pre-determined number of packets subsequent to the first packet to determine whether a Uniform Resource Locator (URL) field of each of the pre-determined number of packets is relevant, and transferring packets subsequent to the pre-determined number of packets to a fast processing path if the URLs are not relevant.Type: ApplicationFiled: December 14, 2012Publication date: June 19, 2014Applicant: Broadcom CorporationInventor: Kirill TSYM
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Publication number: 20140169447Abstract: Systems and methods are provided that allow a deblocking filter and a sample adaptive offset (SAO) filter to be combined in a loop filter stage of a High Efficiency Video Coding (HEVC) decoder. In combining the deblocking filter and the SAO filter, an intermediate buffer may not be utilized, while still allowing for the deblocking filter and the SAO filter to operate substantially in parallel. The order of pixel processing and the parallelization of operation is such that the processing performed by the SAO filter need not hinder the processing performed by the deblocking filter within the loop filter stage. Additionally, and by combining the deblocking filter and the SAO filter without utilizing buffering therebetween, savings in space and cost in implementing the HEVC decoder may be realized.Type: ApplicationFiled: December 27, 2012Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventor: Timothy Moore Hellman
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Publication number: 20140169565Abstract: Methods, apparatus and computer readable storage media are provided herein for scrambling code signalling in support of interference cancelling receivers. In some example embodiments, a method is provided that includes receiving scrambling code initialization parameters for at least one wanted codeword and for at least one interfering codeword from a base station. The method of this embodiment may also include detecting the at least one wanted codeword and the at least one interfering codeword in a transmission that is received from a base station. The method of this embodiment may also include decoding the at least one wanted codeword and the at least one interfering codeword. In some example embodiments, the decoded at least one interfering codeword is used in at least one of interference detection or interference cancellation.Type: ApplicationFiled: December 12, 2013Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventors: Timo Eric ROMAN, Tommi Tapani KOIVISTO, Mihai Horatiu ENESCU, Karl Marko Juhani LAMPINEN
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Publication number: 20140173672Abstract: Different data communication architectures receive a wide variety of content, including audio and video content, for consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures receive distributed video programming in the form of MPEG2 TS packets, flagged by marker packets. Channel bonding synchronization information may be present in packets defined above the data-link layer or received in fields within data-link layer frames.Type: ApplicationFiled: February 24, 2014Publication date: June 19, 2014Applicant: Broadcom CorporationInventors: Xuemin Chen, Rajesh Shankarrao Mamidwar, Wade Keith Wan, Stephen Edward Krafft, Guangcai Zhou
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Publication number: 20140173757Abstract: A gateway network device may establish secure connections to a plurality of remote network devices using tunneling protocols to distribute to the remote network devices multimedia content received from one or more content providers. The consumption of the multimedia content may originally be restricted to local network associated with the gateway network device. The secure connections may be set up using L2TP protocol, and the L2TP tunneling connections may be secured using IPSec protocol. Use of multimedia content may be restricted based on DRM policies of the content provider. DRM policies may be implemented using DTCP protocol, which may restrict use of the multimedia content based on roundtrip times and/or IP subnetting. Each content provider may use one or more VLAN identifiers during communication of the multimedia content to the gateway network device, and the gateway network device may associate an additional VLAN identifier with each secure connection.Type: ApplicationFiled: February 20, 2014Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventors: Yongbum Kim, Bruce Currivan, Wael Diab, Jeyhan Karaoguz, Kenneth Ma, Michael Johas Teener
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Publication number: 20140167173Abstract: A semiconductor device includes a first well, a second well, and a separator structure. The first well and the second well are implanted in the semiconductor substrate. The separator structure is also implanted in the semiconductor substrate and separates the first well and the second well so that the first well and the second well do not contact each other.Type: ApplicationFiled: December 14, 2012Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventor: Akira Ito
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Publication number: 20140169326Abstract: Measures for synchronization and channel estimation in local area communication scenarios. Such measures may for example comprise generating a synchronization reference sequence for synchronization of two communication endpoints and for estimation of characteristics of a communication channel, determining a maximum repetition interval of the synchronization reference sequence based on constancy of the characteristics of the communication channel, and transmitting the synchronization reference sequence with a repetition interval equal to or less than the maximum repetition interval.Type: ApplicationFiled: December 18, 2013Publication date: June 19, 2014Applicant: Broadcom CorporationInventors: Toni LEVANEN, Jukka TALVITIE, Timo KOSKELA
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Publication number: 20140169189Abstract: Embodiments of the present disclosure provide systems and methods for network status mapping. Such an exemplary system and method involves inserting a network map tag in a flow set of packets in a computer network and receiving a response to the network map tag from a network element that includes populated fields of the network map tag comprising a field to identify a network element, a field to identify the outgoing port of the network element, a field to identify queue of the outgoing port; and a status field for the queue of the outgoing port.Type: ApplicationFiled: December 17, 2012Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventor: Mohan Kalkunte
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Publication number: 20140171008Abstract: Techniques are described for calibration of a frequency converter for reducing a leakage-based direct current component at an output of the frequency converter. In an apparatus comprising a frequency converter arranged to perform frequency conversion on an input signal, a variable load arranged to act on at least one of an input and an output of the frequency converter, and a detector arranged to detect a direct current component of an output signal of the frequency converter, a plurality of states of the variable load are sequentially set, a variation between the direct current components for each one of the plurality of states of the variable load is observed, and at least one parameter influencing the direct current component of the output signal of the frequency converter is adjusted such that the observed variation is reduced.Type: ApplicationFiled: December 11, 2013Publication date: June 19, 2014Applicant: Broadcom CorporationInventors: Markus Rudiger NENTWIG, Jouni Kristian KAUKOVUORI
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Publication number: 20140171127Abstract: The location or changes in location of a communications device may be determined by various means, such as via a satellite navigation system, within the communications device. The location of the communications device may then be used to determine communication standard parameters needed for operation. Different countries may require different parameters for various applications, such as digital video broadcasting (DVB) and/or Bluetooth communication. The communications device may then configure itself to use the appropriate parameters for operation using the determined standards. The configuration information may be stored in the communications device. The communications device may comprise at least one radio wireless communication that may need to be updated. The wireless communication may comprise cellular communication, Internet access, and reception of audio and/or video broadcasts, where the audio/video broadcasts may be analog and/or digital.Type: ApplicationFiled: February 25, 2014Publication date: June 19, 2014Applicant: Broadcom CorporationInventor: Brima Babatunde Ibrahim
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Publication number: 20140173294Abstract: Disclosed are various embodiments of an emulation device for generating a cryptographic hash value associated with program data stored in a memory of a computing device. Validation data is generated based upon the cryptographic hash value and a flush counter of the computing device. The program data is encrypted in the computing device using an implementation of an encryption algorithm configured with at least a key stored in the memory. The program data is stored in a flash memory that is external to a processor of the computing device.Type: ApplicationFiled: December 14, 2012Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventor: Mark Buer
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Publication number: 20140171005Abstract: A circuit for a low-noise interface between an amplifier and an analog-to-digital converter (ADC) may comprise a capacitor element having a capacitance of C coupled between a first and second output node of the amplifier. A first resistor R1 may be coupled in parallel with the capacitor. A second resistor R2 may be coupled between the first output node of the amplifier and a first input node of the ADC. A third resistor R3 may be coupled between the second output node of the amplifier and a second input node of the ADC. Initial values of the resistances R1, R2, and R3 may be selected to provide a desired value RL for a load resistance of the amplifier. A value of the capacitance C may be selected so that, in combination with the desired value RL, a desired bandwidth for the amplifier is achieved.Type: ApplicationFiled: December 18, 2012Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventors: Mohyee MIKHEMAR, Amir HADJI-ABDOLHAMID, Hooman DARABI
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Publication number: 20140171003Abstract: A circuit for a low-power and blocker-tolerant mixer-amplifier stage may include a complementary mixer formed by transmission gates having complementary structures. The complementary mixer may be configured to receive one or more radio-frequency (RF) signals and to convert the one or more RF signals to intermediate frequency (IF) current signals. A complementary TIA may be coupled to the complementary mixer and may be configured to receive the IF current signals and provide IF voltage signals. The complementary TIA may be formed by coupling an NMOS-TIA and a PMOS-TIA to a common load. A first portion of the complementary mixer may be coupled to the NMOS-TIA and a second portion of the complementary mixer may be coupled to the PMOS-TIA.Type: ApplicationFiled: December 18, 2012Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventors: Mohyee MIKHEMAR, Hooman DARABI
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Publication number: 20140168350Abstract: Aspects of the present invention may be found in a system and method to effectively schedule and configure video and audio conferences. In one embodiment, the system comprises a server and one or more audio/video conferencing devices interconnected through a public or private data network. In one embodiment, a graphical user interface (GUI) provides for an intuitive means to graphically view and configure one or more conferences, participants, and conference call configuration settings.Type: ApplicationFiled: February 25, 2014Publication date: June 19, 2014Applicant: BROADCOM CORPORATIONInventor: Darwin Rambo