Patents Assigned to Broadcom
-
Patent number: 9014651Abstract: Embodiments of the present disclosure provide a novel multi-mode platform architecture with means for reducing the interference due to both out-of-band (OOB) emissions and inter-modulation distortion (IMD) products caused by a first radio access technology (RAT) transmitter on a co-located second RAT receiver. The multi-mode platform architecture may be used in a variety of wireless devices and with a variety of co-located RATs, including, without limitation, WiFi, LTE, WiMAX, WCDMA, Bluetooth, and Zigbee, for example.Type: GrantFiled: September 10, 2012Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventors: Djordje Tujkovic, Louay Jalloul
-
Patent number: 9014727Abstract: A mobile device communicates position samples of one or more reference position with respect to one or more other communication device such as access points to a location server communicatively coupled to a reference database. The location server determines whether to utilize the one or more reference position in the reference position database based on the communicated samples. The mobile device scans the position samples, which indicate position information of the one or more other communication device and/or whether the position information is reliable for use. The scanned position samples are accumulated and transmitted to the location server. The location server updates records for the one or more reference positions with respect to the one or more other communication device in the reference position database based on the accumulated position samples received. The updated records are utilized to determine a fast position fix for the position device.Type: GrantFiled: April 2, 2010Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventors: Nambirajan Seshadri, David Murray
-
Patent number: 9014306Abstract: Embodiments of an apparatus for improving a gain imbalance between an in-phase and quadrature component recovered by a receiver are provided. The apparatus includes a first transition counter configured to count a number of bit transitions in a first sequence of one-bit values provided by a first sigma-delta modulator based on the in-phase component, and a second transition counter configured to count a number of bit transitions in a second sequence of one-bit values provided by a second sigma-delta modulator based on the quadrature component. The apparatus further includes a gain monitor configured to: (1) determine a first and second power level, proportional to a power of the in-phase and quadrature components respectively, using the number of bit transitions in the first and second sequences, and (2) adjust a gain of one of the in-phase and quadrature components based on a ratio between the first and second power levels.Type: GrantFiled: April 14, 2011Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventor: Farzad Etemadi
-
Patent number: 9014196Abstract: Messages from a physical layer of each communication band and communication channel associated with each protocol utilized in a multi-band, multi-protocol network may be aggregated into a single multi-protocol layer called, for example, a super channel layer. An optimal communication path may be identified from among the communication bands and/or communication channels based on information borne by the single multi-protocol layer. A communication session may be established via optimal communication path. The communication path may include different channels within a single communication bands, and/or channels selected from different communication bands. In this regard, channels from the same or different communication bands may be combined to provide an optimal communication path. The single multi-protocol layer may be characterized as a sublayer located within the data link layer. Accordingly, the single multi-protocol layer may be located above a MAC layer, both of which are part of the data link layer.Type: GrantFiled: September 9, 2003Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, Nambirajan Seshadri
-
Patent number: 9013041Abstract: There are disclosed herein various implementations of semiconductor packages including an interposer without through-semiconductor vias (TSVs). One exemplary implementation includes a first active die situated over an interposer. The interposer includes an interposer dielectric having intra-interposer routing traces. The first active die communicates electrical signals to a package substrate situated below the interposer utilizing the intra-interposer routing traces and without utilizing TSVs. In one implementation, the semiconductor package includes a second active die situated over the interposer, the second active die communicating electrical signals to the package substrate utilizing the intra-interposer routing traces and without utilizing TSVs. Moreover, in one implementation, the first active die and the second active die communicate chip-to-chip signals through the interposer.Type: GrantFiled: December 28, 2011Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventors: Sampath K. V. Karikalan, Sam Ziqun Zhao, Kevin Kunzhong Hu, Rezaur Rahman Khan, Pieter Vorenkamp, Xiangdong Chen
-
Patent number: 9014622Abstract: A repeater device may be utilized to enable forwarding extreme high frequency (EHF) communication between EHF-enabled wireless devices. The repeater device may utilize spatial isolation to prevent and/or reduce interference between received and transmitted EHF RF signals, wherein reception and/or transmission of EHF RF signals in the repeater device may be performed via narrow beams that may enable minimal interference by transmit EHF RF signals to reception of EHF RF. The repeater device may utilize phased arrays to enable performing beamforming, and signal processing operations, including shift and/or amplitude adjustment, may be performed on signals received and/or transmitted via antenna elements in the phased arrays to enable beamforming during reception and transmission of EHF RF signals. Signal processing operations performed in the repeater device may be modifiable to enable continued spatial isolation between receive and transmit EHF RF signal in the repeater device.Type: GrantFiled: July 12, 2013Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventor: Ahmadreza Rofougaran
-
Patent number: 9013851Abstract: Disclosed is an inrush current control circuit for controlling current into a high-current circuit block. The inrush current control circuit comprises a number of distributed switches and a digital control circuit coupled to at least one of the distributed switches. The digital control circuit is configured to switch a first group of the distributed switches in response to an enable/disable signal. The digital control circuit is further configured to switch a second group of the distributed switches after a first programmable delay. According to one embodiment, a method comprises switching a first group of distributed switches by a digital control circuit of an inrush current control circuit in response to an enable/disable signal, and switching a second group of the distributed switches by the digital control circuit after a first programmable delay, thereby resulting in regulation of a flow of an inrush current.Type: GrantFiled: February 22, 2010Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventors: David Anthony Kidd, Ramesh Senthinathan
-
Patent number: 9015467Abstract: Methods and associated systems are disclosed for providing secured data transmission over a data network. Data to be encrypted and encryption information may be sent to a security processor via a packet network so that the security processor may extract the encryption information and use it to encrypt the data. The encryption information may include flow information, security association and/or other cryptographic information, and/or one or more addresses associated with such information. The encryption information may consist of a tag in a header that is appended to packets to be encrypted before the packets are sent to the security processor. The packet and tag header may be encapsulated into an Ethernet packet and routed via an Ethernet connection to the security processor.Type: GrantFiled: December 4, 2003Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventors: Mark L. Buer, Scott S. McDaniel
-
Patent number: 9013552Abstract: A monoscopic video camera may capture, via at least one image sensor, two-dimensional video, and may capture, via at least one depth sensor, corresponding depth information for the captured two-dimensional video. The monoscopic video camera may then adaptively configure scaling operations applicable to the captured two-dimensional video based on the depth information, which may comprise variably scaling different portions of the two-dimensional video. In this regard, the monoscopic video camera may determine, based on the depth information, a plurality of depth planes. The different portions of the two-dimensional video that are subjected to variable scaling may be determined based on the plurality of depth planes. Configuration of scaling operations may be performed in response to user input, which may comprise a zoom command. In this regard, scaling operations may be configured to focus on one or more of the different portions of the two-dimensional video based on zoom commands.Type: GrantFiled: June 30, 2011Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventors: Chris Boross, Nambirajan Seshadri, Jeyhan Karaoguz, Xuemin Chen
-
Patent number: 9014048Abstract: A method and system for dynamic bandwidth re-allocation is provided. The method includes the steps of monitoring a video streams delivered by a server to a first client and a second client that have a same service level agreement and determining whether the first client is receiving a lower bitrate video stream compared to the second client. The method further includes the step of adjusting a parameter to allow the first client to receive a higher bitrate video stream. In an example, the monitoring, determining and adjusting steps are performed by a cable modem termination system (CMTS). In another example, the monitoring, determining and adjusting steps are performed by an optical line terminal (OLT).Type: GrantFiled: June 29, 2012Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventor: Niki Pantelias
-
Patent number: 9014316Abstract: A communications method uses simultaneously at least two receivers to reduce a need for data retransmissions. When using multiple receivers it is enough that at least one of the receivers outputs a correct bit set which are preferably checked by Cyclic Redundancy Check (CRC). The method comprises the following to be performed in a radio modem: a) receiving the same sample of a signal in a first receiver and in a second receiver; and in response to the same sample b) obtaining a first bit set from the first receiver and a second bit set from the second receiver; and c) determining whether the first bit set or the second bit set is a correct bit set. A retransmission request is sent only when the first and second bit sets are erroneous. This reduces latencies in the transmission. One can change receivers depending on the radio frequency (RF) circumstances.Type: GrantFiled: May 9, 2013Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventors: Arto Ilmari Houtari, Risto Juhani Paatelma
-
Patent number: 9013035Abstract: Methods and apparatuses for improved integrated circuit (IC) packages are described herein. In an aspect, an IC device package includes an IC die having a contact pad, where the contact pad is located on a hotspot of the IC die. The hotspot is thermally coupled to a thermal interconnect member. In an aspect, the package is encapsulated in a mold compound. In a further aspect, a heat spreader is attached to the mold compound, and is thermally coupled to the thermal interconnect member. In another aspect, a thermal interconnect member thermally is coupled between the heat spreader and the substrate.Type: GrantFiled: September 5, 2006Date of Patent: April 21, 2015Assignee: Broadcom CorporationInventors: Sam Ziqun Zhao, Rezaur Rahman Khan
-
Publication number: 20150103749Abstract: A radio device/user equipment determines that a later received grant of bundled uplink resources collides with an earlier received grant of bundled uplink resources. The earlier received grant has associated with it an active re-transmission process. In response to that collision determination, at least a re-transmission (HARQ) buffer associated with the earlier received grant is flushed. In one embodiment all HARQ buffers are flushed; in another the HARQ buffer associated with the earlier received grant is flushed while the one associated with the later received grant is not. Several ways are described to determine whether there is a collision: whether the later received grant aligns with a boundary of the resources granted by the earlier received grant, and whether there is an actual collision among the different HARQ processes. Calculating HARQ process numbers is also described where an offset is used to account for the grants allocating bundled TTIs.Type: ApplicationFiled: October 11, 2013Publication date: April 16, 2015Applicant: Broadcom CorporationInventors: Kalle Petteri KELA, Lauri Johannes EEROLAINEN
-
Publication number: 20150103703Abstract: A downlink resource grant is on a first component carrier having a first downlink to uplink DL/UL subframe configuration, and cross schedules to a second component carrier having a different second DL/UL subframe configuration. If a first set SI of downlink subframes associated with a subframe n of the first DL/UL subframe configuration only partially overlaps with a second set S2 of downlink subframes associated with the subframe n of the second DL/UL subframe configuration, then explicit signaling is utilized to select whether uplink radio resources in subframe n for channel selection are implicitly or explicitly allocated. If instead SI does not only partially overlap SI, then a default rule is utilized for allocating the uplink radio resources in subframe n for channel selection. In different examples the explicit signaling is higher layer signaling which configures a UE; or a predetermined state in a field of the PDCCH.Type: ApplicationFiled: April 20, 2012Publication date: April 16, 2015Applicant: Broadcom CorporationInventors: Erlin Zeng, Jing Han, Chunyan Gao, Wei Bai, Haiming Wang, Wei Hong
-
Publication number: 20150105079Abstract: A base station can observe downlink communications of neighboring base stations of neighboring cells to determine operational parameters of these neighboring base stations in a process called sniffing. The base station ceases downlink transmission and/or uplink reception and initiates downlink reception for a duration in time and/or over frequency to form a sniffing window to observe the downlink communications of the one or more neighboring base stations. The sniffing window represents an area in time and/or frequency where downlink communications are not transmitted. The base station determines operational parameters based upon the downlink communications of the one or more neighboring base stations that are observed during the sniffing window.Type: ApplicationFiled: December 15, 2014Publication date: April 16, 2015Applicant: Broadcom CorporationInventor: Amir APPEL
-
Publication number: 20150103872Abstract: A method of compensating carrier tone generation between duty cycles includes receiving a carrier frequency signal and a reference frequency signal, where the carrier frequency signal is mixed with a communication signal in a signal path. The method includes determining a first and second time differences between the carrier frequency signal and the reference frequency signal at respective clock edges of the reference frequency signal. The method includes converting the first time difference to a first corresponding phase value and the second time difference to a second corresponding phase value based on an operating frequency, and determining a phase difference between the first corresponding phase value and the second corresponding phase value. In turn, the method includes adjusting the communication signal with the phase difference independent of the signal path to maintain phase continuity in the signal path between the duty cycles.Type: ApplicationFiled: October 18, 2013Publication date: April 16, 2015Applicant: Broadcom CorporationInventor: Alireza TARIGHAT MEHRABANI
-
Publication number: 20150104074Abstract: Aspects of depth map generation and post capture focusing and re-focusing are described. According to one embodiment, a depth map is generated. The depth map may include a mapping among relative depth values in a field of view of an image based on a difference between pixels of a first image and pixels of a second image. An edge map may also be generated by identifying edges in at least one of the first image or the second image. Using the depth map and the edge map, the relative depth values in the depth map may be smoothed using the edge map. In this manner, certain discontinuities in depth values may be smoothed within edge-bounded regions defined by the edge map. The depth map may be used for focusing and re-focusing, for example, or for object extraction, scene understanding, or gesture recognition, among other imaging processes.Type: ApplicationFiled: October 29, 2013Publication date: April 16, 2015Applicant: Broadcom CorporationInventors: Gary Lee Vondran, JR., Charles Dunlop Macfarlane
-
Publication number: 20150106884Abstract: The present disclosure provides one or network devices having a shared resource that can be remotely accessed by multiple users, also referred to as tenants. The shared resource can be located within one network device or can be spread throughout multiple network devices. One or more resources from among the shared resource can be allocated to one or more corresponding tenants from among the multiple tenants. The one or more corresponding tenants can access their respective resources using one or more commands. The one or network devices can implement an authorization procedure to ensure that the one or more tenants can only access their respective resources. The authorization procedure represents an access control mechanism to grant access to the one or more tenants to only their respective resources.Type: ApplicationFiled: October 10, 2014Publication date: April 16, 2015Applicant: Broadcom CorporationInventors: Rafi Shalom, Karin Inbar, Ofir Hermesh
-
Publication number: 20150103960Abstract: The present disclosure is described in the exemplary context of a Long Term Evolution (LTE) cellular network and is directed to a method and apparatus for estimating a gain and phase imbalance between an in-phase path and a quadrature path of a receiver operating in such a network. The method and apparatus specifically exploit channel coherence in time and frequency, and the properties of the Primary Synchronization Signal (PSS), and/or the Secondary Synchronization Signal (SSS), and/or information in the Physical Broadcast Channel (PBCH), all of which are defined by the LTE standard, to estimate the gain and phase imbalance of the receiver while it remains connected to a base station to receive data.Type: ApplicationFiled: October 10, 2013Publication date: April 16, 2015Applicant: Broadcom CorporationInventors: Ahmad MOHAMMED, Louay Jalloul
-
Publication number: 20150103200Abstract: Aspects of calibration of sensors are described. In one embodiment, a characteristic associated with a first or a second sensor is identified. The characteristic may be identified before or after assembly of a device including the first and second sensors. In turn, an operating characteristic of at least one of the first sensor or the second sensor may be adjusted based on the identified characteristic. Further, a first image may be captured with the first sensor and a second image may be captured with the second sensor. An attribute of the second image, for example, may be adjusted to substantially address any difference between the attribute of the second image and a corresponding attribute of the first image using the characteristic for calibration. The adjustments described herein may assist various processing techniques which operate on pairs of images, for example, particularly when a heterogeneous mix of sensors is used.Type: ApplicationFiled: October 29, 2013Publication date: April 16, 2015Applicant: Broadcom CorporationInventors: Gary Lee Vondran, JR., Charles Dunlop Macfarlane