Patents Assigned to Broadcom
  • Regulation and Load Modulation in a Near Field Communication Device
    Publication number: 20150223014
    Abstract: A near field communications (NFC) device is disclosed that load modulates and regulates a radio frequency (RF) signal. The NFC device includes a rectifier that rectifies the RF signal to provide a direct current voltage. The NFC device also includes a modulator that modulates a data signal. The modulator provides a first voltage when the data signal is at a first level and provides a second voltage when the data signal is at a second level. The NFC device utilizes a regulator to regulate and to load modulate the RF signal. The regulator adjusts an impedance based upon a comparison of the DC voltage provided by the regulator to the first voltage provided by the modulator for the data signal at the first level or to the second voltage provided by the modulator for the data signal at the second level.
    Type: Application
    Filed: April 14, 2015
    Publication date: August 6, 2015
    Applicant: Broadcom Corporation
    Inventor: Alastair LEFLEY
  • SATELLITE ALIGNMENT SYSTEM USING AUTOMATIC CONTROL OF OUTPUT POWER
    Publication number: 20150222005
    Abstract: Systems and methods for use in evaluating a position of a satellite dish are provided. One system includes an antenna configured to receive an input satellite signal at a current position of a satellite dish and automatic gain control circuitry configured to apply a variable gain to the input satellite signal to produce a modified signal at a desired level. The system further includes power control circuitry configured to generate an output signal using the modified signal. The power control circuitry is configured to adjust a power level of the output signal using the variable gain applied to the input satellite signal such that the output signal is proportional to the input signal.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 6, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Steven Jaffe, Pascal Finkenbeiner, Ronald Chan
  • Creating a System on the Fly and Applications Thereof
    Publication number: 20150223275
    Abstract: Disclosed herein are systems, apparatuses, and methods for creating a system of wireless-enabled components (WECs). Such a system includes a server and a plurality of wireless-enabled component (WECs). Each WEC includes a functional resource (e.g., a processing resource and/or a memory resource) and is configured for wireless communication with the server and one or more other WECs. A first WEC is configured to wirelessly upload, to the server, an availability of the functional resource of the first WEC. The first WEC is further configured to wirelessly download, from the server, a linking resource for linking with one or more of the plurality of WECs. The plurality of WECs may be located on a single chip, on multiple chips of a single device, or on multiple chips of multiple devices.
    Type: Application
    Filed: February 6, 2015
    Publication date: August 6, 2015
    Applicant: Broadcom Corporation
    Inventors: Ahmadreza (Reza) ROFOUGARAN, Arya Reza Behzad, Michael Boers, Jesus Alfonso Castaneda, Sam Ziqun Zhao
  • Stacked Synthesizer for Wide Local Oscillator Generation Using a Dynamic Divider
    Publication number: 20150222281
    Abstract: A stacked synthesizer for wide local oscillator (LO) generation using a dynamic divider. The phase locked loop can include a plurality of voltage controlled oscillators (VCOs), and a selector that can be configured to select an output of one of the plurality of VCOs. The selected output of one of the plurality of VCOs can be provided to an on-chip dynamic divider and to an off-chip dynamic divider for LO sharing. The dynamic dividers can be configured to generate synthesizer outputs based on a multiplication of the selected output of one of the plurality of VCOs by a factor (1+1/M), where M is a variable number.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 6, 2015
    Applicant: Broadcom Corporation
    Inventors: Igal Kushnir, Hung-Ming Chien, Wei-Hong Chen, Theodoros Chalvatzis, Seunghwan Yoon, Chin-Ming Chien, Tirdad Sowlati, Moche Cohen, Kobi Sturkovich, Shaul Klein
  • TIME OFFSET ACQUISITION FOR DUAL CONNECTIVITY
    Publication number: 20150223089
    Abstract: Devices and methods for determining timing offsets between wireless devices are provided. One method includes transmitting, from a first device, a request for timing data to first user equipment and receiving a response. The timing data is indicative of a frame timing associated with a reference time for both the first device and a second device. The method further includes determining a timing offset between the frame timing for the first device and a frame timing for the second device based on the timing data. Another method includes receiving a reference time from a timing reference device, applying a timestamp to frame timing data for the first device, receiving frame timing data from the second device time-stamped based on the reference time, and comparing the timing data to determine a time offset between the devices.
    Type: Application
    Filed: January 30, 2015
    Publication date: August 6, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Soumen Chakraborty, Sindhu Verma
  • SYSTEM INFORMATION FOR DEVICE-TO-DEVICE DISCOVERY
    Publication number: 20150223155
    Abstract: In radio communication networks, such as the Long Term Evolution (LTE) or the LTE-Advanced (LTE-A) of the 3rd Generation Partnership Project (3GPP), a user equipment (UE) may communicate with another UE via a base station. UEs may also communicate directly with each other by applying resources dedicated by the network for a device-to-device (D2D) direct communication. One part of device-to-device (D2D) communication is discovery to find other interesting peers (in general a peer can mean an application, user, service, device, etc.) in proximity. The discovery can be implemented either using the direct radio signals between the devices or it may utilise network side in the process. The same discovery process may be utilised in relation to small cells. A system information block SIB comprising information on small cell discovery and D2D is generated. Any change in the SIB is indicated in a paging message.
    Type: Application
    Filed: September 17, 2013
    Publication date: August 6, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Samuli Turtinen, Timo Koskela, Sami-Jukka Hakola
  • Point to Point Split Mount Impairment Correction System
    Publication number: 20150222470
    Abstract: Systems and methods are provided for lowering the cost and power consumption of outdoor units (ODUs) by providing digital corrections of ODU impairments within indoor units (IDUs). For example, in an embodiment, an error correction module located in the IDU can digitally correct the ODU impairments. Embodiments of the present disclosure allow direct transmission and direct reception in ODUs without any image or LO leakage filtering.
    Type: Application
    Filed: January 30, 2015
    Publication date: August 6, 2015
    Applicant: Broadcom Corporation
    Inventor: Igal Yehuda KUSHNIR
  • Method and system for utilizing image sensor pipeline (ISP) for enhancing color of the 3D image utilizing z-depth information
    Patent number: 9100640
    Abstract: 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 configure color related processing of video information corresponding to objects in the captured 2D video based on the captured corresponding depth information. Configuring color processing may comprise setting and/or adjusting color information associated with the objects. In this regard, setting and/or adjusting color information may be based on shadow, shade, and/or edge related information associated with the objects, which may be generated and/or modified based on the captured corresponding depth information based on the captured corresponding depth information. Configuring color processing may be based on surrounding regions adjacent to the objects.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventors: Chris Boross, Nambirajan Seshadri, Jeyhan Karaoguz, Xuemin Chen
  • Social device security in a social network
    Patent number: 9100453
    Abstract: A social network (SNET) is divided into one or more circles employing separate security secrets, e.g. keys, for communication between members. A device can be a member of more than one circle, and store different keys for each of those circles in separate, restricted portions of memory. When a member leaves a circle, new keys can be generated and distributed to the remaining members. Before and after joining a circle, a level of trust associated with the device or human member can be determined based on third party trust verification and a trust history. A requirement for multiple current circle members to vouch for the prospective member can be imposed as a condition of membership. Each circle can be assigned different trust and access levels, and authorization to receive information can be checked before transmitting information between circles.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventors: Sherman (Xuemin) Chen, Marcus C. Kellerman, Wael W. Diab, Yasantha N. Rajakarunanayake, James D. Bennett
  • Selecting receiver chains of a mobile unit for receiving wireless signals
    Patent number: 9100844
    Abstract: A method and apparatus of selecting which of a plurality of receiver chains of a mobile unit to receive wireless signals, is disclosed. One method includes measuring a first receive signal quality while all of the plurality of receiver chains are receiving wireless signals, and measuring a second receive signal quality while a subset of the plurality of receiver chains are receiving wireless signals. The subset of the plurality of receiver chains are selected to receive wireless signal unless the first receive signal quality is a threshold better than the second receive signal quality. If the first receive signal quality is a threshold better than the second receive signal quality then all the plurality of receiver chains are selected to receive wireless signals.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventors: Louay Jalloul, Sam P. Alex, Soumen Chakraborty, Sindhu Verman, Manish Airy, Anuj Puri
  • Class AB differential line drivers
    Patent number: 9099970
    Abstract: An output stage of a differential line driver generates a differential output signal. A common-mode component of the differential output signal is decoupled from the differential output signal using a common-mode voltage sense. The common-mode component of the differential output signal is provided to a capacitor that is coupled between the output stage and the common-mode voltage sense.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: August 4, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Junhua Tan, Hui Pan, Karim Vincent Abdelhalim, Mostafa Mohammad Hany Ali Hammad, Yuan Yao
  • Burst mode to continuous mode converter
    Patent number: 9100130
    Abstract: A system to convert upstream burst mode data into continuous mode data in a passive optical network (PON) is provided herein. The system includes a burst mode Serializer/Deserializer (SerDes) that recovers a clock and burst mode data from an Optical Network Unit (ONU). The burst mode unit recovers the burst mode data based on a start time of burst mode data transmission by the ONU and a round-trip time between the ONU and an Optical Line Terminal (OLT). The system further includes a continuous mode SerDes that is coupled to the burst mode SerDes. The continuous mode SerDes is configured to receive the recovered clock and recovered burst mode data from the burst mode SerDes and convert the burst mode data into continuous mode data by buffering and padding the burst mode data based on the recovered clock. The continuous mode Serdes is configured to transmit the continuous mode data to the OLT.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventors: Ryan E. Hirth, Jaroslaw Wojtowicz
  • Cascading baseband processors
    Patent number: 9100986
    Abstract: Cellular processors are cascaded to provide different configurations, which result in higher-capacity base stations, increased numbers of simultaneous users over one frequency band, and/or aggregation of several carriers while still using only one radiofrequency (RF) chipset. The processors are aligned in both time and frequency, with each processor having a data port that allows data exchange with the other processors. The data alignment and exchange allow the processors, in the aggregate, to act as a single unit, resulting in a scalable architecture that can accommodate different system configurations.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: August 4, 2015
    Assignee: BROADCOM CORPORATION
    Inventor: Rafael Carmon
  • System and method for omitting a clock pulse from a clock signal in response to a change in current consumption
    Patent number: 9098260
    Abstract: Various embodiments of the present disclosure are directed to managing load steps caused by processing circuitry. The processing circuitry may generate a series of clock pulses at an average clock period. The processing circuitry may estimate a current consumption of the processing circuitry at each clock pulse. Accordingly, a clock pulse from the series of clock pulses may be omitted when a change in the current consumption exceeds a predetermined threshold amount, thereby increasing the average clock period.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventors: Simon Martin, Terry Mackown
  • System and method in a television receiver for providing user-selection of objects in a television program
    Patent number: 9098128
    Abstract: A system and method in a television receiver (e.g., a television receiver external to a television) for providing user-selection of objects in a television program, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri
  • Femtocell fingerprinting
    Patent number: 9100891
    Abstract: User equipment (UE) includes an architecture for handling femtocell fingerprints. The architecture may, as examples, maintain the validity and reliability of fingerprints and coordinate enhancement to existing fingerprints. The architecture also supports fingerprint creation, updating, and deletion.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventors: Dong Zheng, Vikram Shantveer Mhetre, Sudip Alexei Gupta, Sagar Nargundkar, Yuan Liu, Sridhar Prakasam, Sultan Budhwani, Sandeep Sarthavalli Ramesh, Abhishek Pandit, Odile Rollinger, Mojan Mohajer, Soma Majumdar, Aniruddha Subhash Diwan
  • System and method for upgrading a multiprocessor set-top box device with a monolithic firmware image
    Patent number: 9100696
    Abstract: A system and method for downloading a code image at a set-top gateway host that includes an embedded set-top box and an embedded cable modem. The embedded set-top box and the embedded cable modem interact so that each leverages the resources of the other, thereby minimizing the functionality that must be built into each.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventor: Pinar Taskiran-Cyr
  • Adjustable depth layers for three-dimensional images
    Patent number: 9100642
    Abstract: A system and method for generating a three-dimensional image using depth layers is provided. A plurality of depth layers may be generated from the image, where each depth layer has a height, a width, and a thickness. Certain regions of the image may be assigned to one of the plurality of depth layers. A depth map may be generated based on the depth layers. Further, a disparity map may be generated based on both the depth map and the depth layers. A stereo view of the image may then be rendered based on the disparity map.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventor: Hyeong-Seok Victor Ha
  • Current divider based voltage controlled gain amplifier
    Patent number: 9099975
    Abstract: An RF amplifier includes an input stage, a buffer stage, and an output stage. The input stage is configured to provide attenuation and impedance matching for an input radio frequency (RF) signal by providing shunt and series variable resistance current paths and RF power to RF current conversion. The input stage routes the RF current between the current paths resulting in an attenuation of the RF input current. The buffer stage is configured to provide an intermediate RF current which tracks the current level of the attenuated RF input current, thereby providing isolation between the input and output stages. The output stage is configured to provide RF current to RF power conversion, utilizing the intermediate RF current to provide an RF signal having an RF output power proportional to the RF input power.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventor: Nir Yahav
  • Multilane SERDES clock and data skew alignment for multi-standard support
    Patent number: 9100167
    Abstract: A communication system may include a number of communication channels operating in accordance with one or more communication standards. The channels may generate data clocks from one or more master clock signals. The phase of the data clocks may be aligned using phase detectors for determining respective phase relationships and using phase interpolators for adjusting respective clock phases. The communication system may include communication channels that operate at different data clock frequencies. These systems may divide their respective data clocks in order to achieve a common clock frequency for use in their phase alignment. The phase detectors and associated circuitry may be disabled to save power when not in use.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: August 4, 2015
    Assignee: Broadcom Corporation
    Inventors: Adesh Garg, Jun Cao, Namik Kocaman, Kuo-J Huang, Delong Cui, Afshin Momtaz