Patents Assigned to Broadcom
  • Patent number: 8832467
    Abstract: Methods, systems and computer program products to create and manage encapsulated Digital Rights Management (DRM) metafiles, also referred to as objects, are provided herein. Each object comprises a file header section, an encrypted webpage metadata section, an encrypted preferences section, an encrypted tracking section, an encrypted license section, a media file section and an encrypted file trailer section. Each section comprises multiple attributes. A metabase is provided herein to catalog objects, sections and attributes. Instructions are provided herein to allow for setting a current object, section or attribute; retrieving an object, section or attribute; and enumerating objects, sections and attributes in a device memory.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventor: Scott Krig
  • Patent number: 8832747
    Abstract: A system and method in a television system for responding to user-selection of an object in a television program based on geographical location, 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: September 13, 2010
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Nambirajan Seshadri
  • Patent number: 8831536
    Abstract: Methods and systems for an on-chip and/or on-package T/R switch and antenna are disclosed and may include selectively coupling one or more low noise amplifiers (LNAs) and/or one or more power amplifiers (PAs) to one or more ports of a multi-port distributed antenna utilizing configurable transmit/receive (T/R) switches integrated on a chip with the LNAs and PAs. The LNAs and PAs may be impedance matched to the antenna by coupling them to a port based on a characteristic impedance at the port. The T/R switches may be integrated on a package to which the chip may be coupled. The signals transmitted and received by the antenna may be time division duplexed. The antenna, which may include a microstrip antenna, may be integrated on the chip or the package. The LNA and the PA may be coupled to different ports on the antenna via the T/R switches.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8830886
    Abstract: Wireless communication devices are disclosed that are capable of selecting and changing signal polarities depending on channel conditions in order to improve or optimize communication therebetween. When a first polarization direction is deemed inadequate, the devices can switch to communicating via a second polarization. In addition, information relating to received signal qualities in the different polarizations can be stored in each device to allow for quick and efficient exchanges between configurations. Finally, when conditions warrant, the devices can enter a dynamic polarization configuration in which signal polarizations are switched rapidly so as to enjoy benefits of diversity.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Siavash Ekbatani, Alireza Tarighat Mehrabani, Ahmadreza Rofougaran
  • Patent number: 8831540
    Abstract: Methods and systems for amplitude modulation using a leaky wave antenna are disclosed and may include amplitude modulating an output of one or more power amplifiers in a wireless device by modulating a bias current in the power amplifiers that are coupled to one or more leaky wave antennas. The leaky wave antennas may include a balun that may be integrated on the chip, on a package to which the chip may be affixed, and/or integrated on a printed circuit board to which the chip may be affixed. An output power of the power amplifiers may be adjusted by configuring a bias voltage on the leaky wave antennas. The bias voltage may be configured utilizing a DC to DC voltage controller. The bias current may be modulated via one or more switched current sources. The switched current sources may be binary weighted and/or may be current mirrors.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8831543
    Abstract: Disclosed are various embodiments for transmitting radio frequency signals. A radio frequency transmitter may be configured to generate an analog signal comprising an in-phase component and a quadrature-phase component. The in-phase component and the quadrature-phase component of the analog signal may be provided to multiple radio frequency processing chains. One of the radio frequency processing chains may generate an output radio frequency signal based on the in-phase component and the quadrature-phase component.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Meng-An Pan, Ali Afsahi, Vikram Magoon, Arya Behzad
  • Patent number: 8832412
    Abstract: Various methods and systems are provided for processing units that may be scaled. In one embodiment, a processing unit includes a plurality of scalar processing units and a vector processing unit in communication with each of the plurality of scalar processing units. The vector processing unit is configured to coordinate execution of instructions received from the plurality of scalar processing units. In another embodiment, a scalar instruction packet including a pre-fix instruction and a vector instruction packet including a vector instruction is obtained. Execution of the vector instruction may be modified by the pre-fix instruction in a processing unit including a vector processing unit. In another embodiment, a scalar instruction packet including a plurality of partitions is obtained. The location of the partitions is determined based upon a partition indicator included in the scalar instruction packet and a scalar instruction included in a partition is executed by a processing unit.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Neil Bailey, Eben Upton
  • Patent number: 8830016
    Abstract: A liquid micro-electro-mechanical system (MEMS) magnetic component includes a board, a channel, one or more windings, a magnetizing-doped droplet, and a droplet activating module. The channel is implemented or embedding in one or more layers of the board and the one or more windings are proximally positioned to the channel. The magnetizing-doped droplet is contained in the channel and is modified by the droplet activating module based on the control signal. By modifying the magnetizing-doped droplet with respect to the one or more windings changes an electromagnetic property of the liquid MEMS magnetic component.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8830394
    Abstract: Presented herein are system(s), method(s), and apparatus for providing high resolution frames. In one embodiment, there is a method comprising receiving upscaled frames; motion estimating the upscaled frames; and motion compensating the upscaled frames.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Yunwei Jia, Samir Hulyalkar, Steven Hanna, Lee Shu Key
  • Patent number: 8831024
    Abstract: A method, system and computer program product for creating dynamic custom headers and for controlling flow rate of Downstream External Physical layer Interface (DEPI) packets are described herein. The method comprises concatenating or fragmenting a packet descriptor of a DEPU packet based on one or more of associated packet size, maximum transmission unit, packet type, channel configuration information and flow control mode. The method further comprises creating a header for the packet based on data in a programmable header template and storing the header in a header buffer, determining whether to transmit the packet based on one of a flow meter or a maximum transmission unit size and transmitting the packet by sending the packet descriptor to an output direct memory access (DMA) controller. A flow meter flow control mode determines if a packet is to be transmitted based on packet size, bucket size, a low threshold and a high threshold.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Michael R. Robinson, Joel I. Danzig, Thomas L. Johnson
  • Patent number: 8831216
    Abstract: Disclosed are various embodiments for generating pseudo-random numbers. One such embodiment is an apparatus comprising digital hardware configured to generate pseudo-random numbers. The apparatus uses a linear feedback shift register in which the correlation between successive pseudo-random numbers is reduced.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Wade Keith Wan, Sherman (Xuemin) Chen
  • Patent number: 8832718
    Abstract: Method and apparatus for providing an interface between application software and an SPS sub-system embedded in a location-enabled device is described. In one example, the location-enabled device includes a satellite positioning system (SPS) receiver, a hardware communication port coupled to the SPS receiver, a central processing unit (CPU), and a memory. The memory stores program code for execution by the CPU. The program code includes application software, SPS control software, and a driver. The application software is configured to communicate using the hardware communication port. The SPS control software is configured to control the SPS receiver. The driver is configured to provide a virtual communication port between the application software and the SPS control software.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: September 9, 2014
    Assignee: Broadcom Corporation
    Inventors: Charles Abraham, Sergei Podshivalov
  • Publication number: 20140247778
    Abstract: Embodiments provide systems and methods for adaptive reference signal mapping in wireless multi-access communication networks, including LTE, WLAN, WiMAX, Bluetooth, etc. In an embodiment, the reference signal mapping configuration is user equipment (UE) specific and can be configured semi-statically or dynamically according to one or more communication related parameters of the UE. The one or more parameters can include, without limitation, a modulation scheme used for communication with the UE, a modulation and coding scheme (MCS) used for communication with the UE, a distance of the UE relative to the base station, an antenna configuration at the UE, interference management capability of the UE, and a rank of the UE.
    Type: Application
    Filed: February 25, 2014
    Publication date: September 4, 2014
    Applicant: Broadcom Corporation
    Inventor: Krishna GOMADAM
  • Publication number: 20140247983
    Abstract: A system implements multiple coding formats for coding pixels within a picture. The formats may be selected based on one or more of the input picture and encoding variables. The coding formats may have varying chroma sampling densities. Filtering may be applied to convert among the various formats or to convert a sampled input to a specific chroma sampling density. The format associated with various groups within a coded bitstream may be changed to adapt to evolution of the one or more variables or inputs.
    Type: Application
    Filed: March 21, 2014
    Publication date: September 4, 2014
    Applicant: Broadcom Corporation
    Inventors: Alexander Garland MacInnis, Frederick George Walls, Brian Francis Schoner
  • Publication number: 20140250483
    Abstract: A system, method, and apparatus for playback of multiple video elementary streams is presented herein. A host processor modifies the video elementary streams to allow a transport demultiplexer to distinguish among the plurality of the video elementary streams.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 4, 2014
    Applicant: Broadcom Corporation
    Inventors: Girish HULMANI, Arul THANGARAJ, Sandeep BHATIA
  • Patent number: 8824284
    Abstract: Methods and apparatus for dynamic load balancing using virtual link credit accounting are disclosed. An example method includes receiving, at a network device, a data packet to be communicated using an aggregation group, the aggregation group including a plurality of virtual links having a common destination. The example method further includes determining a hash value based on the packet and determining an assigned virtual link of the plurality of virtual links based on the hash value. The example method also includes reducing a number of available transmission credits for the aggregation group and reducing a number of available transmission credits for the assigned virtual link. The example method still further includes communicating the packet to another network device using the assigned virtual link.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: September 2, 2014
    Assignee: Broadcom Corporation
    Inventors: Brad Matthews, Bruce Kwan, Puneet Agarwal
  • Patent number: 8825102
    Abstract: Systems and methods for regulating transmit power in a mobile station to comply with SAR limits are disclosed. A mobile station may include a processor, transmitter, and proximity sensor. The transmitter is configured to operate at a transmit power controlled by a first transmit power limit. The proximity sensor identifies how close the mobile station is to a human head. A transmit power regulator, implemented on the processor, determines the cumulative energy radiated by the transmitter over a specified number of frames. If the cumulative energy exceeds an energy limit based on a SAR limit, and the proximity sensor indicates that the mobile station is close to a human head, the transmit power regulator may decrease the transmit power limit of the transmitter.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 2, 2014
    Assignee: Broadcom Corporation
    Inventors: Soumen Chakraborty, Rishi Ranjan, Kamlesh Rath, Manish Airy
  • Patent number: 8824538
    Abstract: Methods and systems adaptively equalizing an analog information signal, the method including sampling the analog information signal to provide analog samples including post-transition samples and steady-state samples, and equalizing the analog samples to produce equalized analog samples. The equalizing includes determining a difference between an average post-transition amplitude associated with at least one of the post-transition samples and an average steady-state amplitude associated with at least one of the steady-state samples, and adjusting an equalization coefficient to adjust the difference between the average post-transition amplitude and the average steady-state amplitude.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: September 2, 2014
    Assignee: Broadcom Corporation
    Inventors: Aaron Buchwald, Xicheng Jiang, Hui Wang, Howard A. Baumer, Avanindra Madisetti
  • Patent number: 8823447
    Abstract: Systems, methods, and computer readable media that can mitigate the effects of semiconductor aging in a semiconductor device are described. Traditional methods of mitigating semiconductor aging can be wasteful since they overcorrect for aging using a high operational voltage. The approach discussed herein steps up the operational voltage for the electronic device with time based on predetermined aging models. This allows power consumption by the electronic device, particularly early in the designed operational life, to be much less than it would otherwise be.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: September 2, 2014
    Assignee: Broadcom Corporation
    Inventor: Anatoly Gelman
  • Patent number: 8822286
    Abstract: According to one exemplary embodiment, a method for fabricating a flash memory cell in a semiconductor die includes forming a control gate stack overlying a floating gate stack in a memory region of a substrate, where the floating gate stack includes a floating gate overlying a portion of a dielectric one layer. The floating gate includes a portion of a metal one layer and the dielectric o one layer includes a first high-k dielectric material. The control gate stack can include a control gate including a portion of a metal two layer, where the metal one layer can include a different metal than the metal two layer.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: September 2, 2014
    Assignee: Broadcom Corporation
    Inventors: Wei Xia, Xiangdong Chen, Frank Hui