Patents Assigned to Broadcom
  • Patent number: 9118966
    Abstract: A Set Top Box (STB) or client computer includes a communication interface operable to receive digital messages and digital content, memory, a transcoder, a central processing unit, and security processing circuitry. The security processor (or other components of the STB) is operable to identify protected digital content of the digital content that is to be isolated from the central processing unit during transcoding and to isolate the protected digital content from the central processing unit during the transcoding. The CPU may be denied access to a protected portion of the memory during the transcoding in which the transcoder stores non-scrambled protected digital content. The protected portion of the memory may be buffer memory accessible by the transcoder and not accessible by the central processing unit. The protected digital content may be identified from the digital message.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventor: Steve (Stephane) Rodgers
  • Patent number: 9118442
    Abstract: A UE receives HSDPA traffic comprising legacy HSDPA traffic and HS-SCCH-less HSDPA traffic. The UE concurrently processes the received legacy HSDPA traffic and the received HS-SCCH-less HSDPA traffic. The received HSDPA traffic is concurrently buffered into a first storage and a second storage to support simultaneously receiving legacy HSDPA traffic and HS-SCCH-less HSDPA traffic. A HARQ process is performed on the buffered HSDPA traffic in the first storage or the second storage according to a corresponding HS-SCCH CRC test. The resulting HARQ processed HSDPA traffic is Turbo decoded. Turbo decoding on the previously HARQ processed HSDPA traffic is performed simultaneously with HARQ processing on the buffered HSDPA traffic in the first storage or the second storage. The buffered HS-SCCH-less HSDPA traffic is processed via HARQ processing and Turbo decoding for each of the four pre-determined transport formats.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Li Fung Chang, Khoi Ly, Bin Liu, Simon Baker
  • Patent number: 9119160
    Abstract: A mobile communication device has a processor, a radio, a near field communication (NFC) device, a battery, and memory for storing data. The power level of the battery is measured. When the measured power level is above a first predetermined level, power is provided to the radio to allow communication. Sufficient power is provided to operate the NFC device as a reader and a tag. When the measured power level of the battery falls below the first predetermined level, battery power to the radio is shut off. Sufficient power is maintained to the NFC device to allow it to operate only as a tag. Sufficient power is maintained to the memory to retain the data stored in the memory. When the measured power level of the battery falls below a second predetermined level, the NFC device is required to harvest all of its power from the field.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Steven Hall, Mohamed Awad, Theodore Trost
  • Patent number: 9118592
    Abstract: A first of a plurality of intermediate routing devices is operable to advertise to and/or receive status information from remaining one(s) of the intermediate routing devices. The intermediate routing devices may store and/or analyze the advertised and/or received status information and may make routing decisions based on it. The first routing device may advertise status information for itself and/or for one or more other intermediate routing devices. Data may be routed based on type of data, service level and/or priority associated with the data. The advertised and/or received status information comprises current status information, predicted status information and/or past status information which may be based on one or more of port status, CPU utilization, memory utilization, quality of service (QoS), bandwidth utilization, bandwidth availability, traffic load, congestion, number of connections handled and capability to provide a particular level of service.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, James D. Bennett
  • Patent number: 9118115
    Abstract: An interwoven spiral antenna includes a non-inverted spiral section, an inverted spiral section, and an excitation region. The non-inverted spiral section has a spiral shape and the inverted spiral section has an inverted spiral shape. The excitation region is coupled to at least one of the non-inverted spiral section and the inverted spiral section, wherein, when excited, the interwoven spiral antenna has a circular polarization.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Nicolaos G. Alexopoulos, Seunghwan Yoon
  • Patent number: 9117324
    Abstract: Systems and methods for binding a smartcard and a smartcard reader are provided. A smartcard is provision to store a first set of credentials for use in traditional transactions such as at a brick and mortar retail store and a second set of credentials for use when performing a transaction using a smartcard reader associated with a user such as an on-line transaction. The user smartcard reader registers with a smartcard issuer server by cryptographically authenticating a secure processor associated with the smartcard reader. As a result of the registration, the secure processor obtains a set of private keys associated with the second set of credentials. When a request for a authorizing a transaction via the user's smartcard reader is received, the smartcard reader cryptographically authenticates itself to the smartcard using a private key associated with a credential to be used to authorize the transaction.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventor: Mark Buer
  • Patent number: 9119129
    Abstract: 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: Grant
    Filed: April 2, 2013
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Qi Wang, Matthew James Fischer
  • Patent number: 9118982
    Abstract: An optical line terminal (OLT) is operable in a passive optical network (PON). The OLT comprises a plurality of optical network units (ONUs), an electrical module for generating continuous downstream signal and processing received upstream burst signals according to a communication protocol of the PON and an optical module for transmitting continuous optical signals over a first wavelength and receiving burst optical signals over a second wavelength. The optical module further includes an ONU traffic processing module is electrically coupled to the optical module and the electrical module. The ONU traffic processing module is configured to emulate one of the ONUs of the PON. An interface is used for interfacing between the electrical module and the optical module.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Amiad Dvir, Eliezer Weitz
  • Patent number: 9118367
    Abstract: Embodiments provide transmitter topologies that improve the power efficiency and bandwidth of RF transmitters for high transmission power applications. In an embodiment, the common-emitter/source PA of conventional topologies is replaced with a current-input common-base/gate PA, which is stacked on top on an open-collector/drain current-output transmitter. The common-base/gate PA protects the output of the transmitter from large output voltage swings. The low input impedance of the common-base/gate PA makes the PA less susceptible to frequency roll-off, even in the presence of large parasitic capacitance produced by the transmitter. At the same time, the low input impedance of the common-base/gate PA reduces the voltage swing at the transmitter output and prevents the transmitter output from being compressed or modulated. In an embodiment, the DC output current of the transmitter is reused to bias the PA, which results in power savings compared to conventional transmitter topologies.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Ray (Ramon) Gomez, Leonard Dauphinee, Massimo Brandolini, Jianhong Xiao, Dongsoo Koh, Young Shin, Chonghua Zhong, Reza Rahman Khan
  • Patent number: 9118649
    Abstract: Methods and systems for processing Ethernet data are disclosed and may comprise receiving Ethernet data via a single gigabit Ethernet IP telephone chip. A secure application key may be received from a secure server by an OSM integrated within the gigabit Ethernet IP telephone chip for processing the received Ethernet data. The received Ethernet data may be processed by the gigabit Ethernet IP telephone chip based on the received secure application key. A unique security identifier internal to the single gigabit Ethernet IP telephone chip may be communicated off-chip to the secure server. The unique security identifier may identify the single gigabit Ethernet IP telephone chip. The secure server may authenticate the gigabit Ethernet IP telephone chip based on the unique security identifier internal to the single gigabit Ethernet IP telephone chip, prior to the receiving of the secure application key.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: August 25, 2015
    Assignee: BROADCOM CORPORATION
    Inventors: Balwinder Boora, Henry Li, Paul Shore, Stephen Mueller
  • Patent number: 9118923
    Abstract: Presented herein are reconstruction and overlap transform system(s) and method(s) supporting VC-1 decoding. In one embodiment, there is presented a system for reconstructing pixels. The system comprises a first circuit and a second circuit. The first circuit reconstructs pixels from residuals, where the residuals encode video data in accordance with a first encoding standard. The second circuit reconstructs pixels from residuals, where the residuals encode video data in accordance with a second encoding standard.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventor: Stephen Gordon
  • Patent number: 9118728
    Abstract: Aspects of a method and system for determining physical layer traversal time are provided. In this regard, duration of a time interval may be determined in the PHY of a network device, where the time interval corresponds to an amount of time that occurs between a first time instant at which information is input to the PHY and a second time instant at which corresponding information is output by the PHY. Communication of data to and/or from the network device may be managed based on the determined duration of the time interval. The duration of the time interval may be determined utilizing one or more counters within the PHY. The determined duration may be stored in one or more registers within the PHY. An amount of data that is processed by the PHY during the time interval may be determined within the PHY.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Wael William Diab, Scott Powell
  • Patent number: 9118412
    Abstract: A system for performing in-band reflection analysis in a passive optical network. The system comprises an optical line terminal (OLT) that includes a transceiver for transmitting continuous downstream data modulated on a first wavelength and receiving upstream burst data modulated on a second wavelength, the OLT further includes a receiver for receiving signals reflected from the PON that are modulated on the first wavelength, wherein the continuous downstream data comprises user data and a test data pattern; and a reflection analysis unit for cross-correlating between a time-shifted version of the transmitted test data pattern and the reflected signals, wherein the test data pattern is time-shifted relatively for an optical location to be tested.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Amiad Dvir, Assaf Naor
  • Patent number: 9118364
    Abstract: Differential feedback within multiple user, multiple access, and/or MIMO wireless communications. After full feedback signal(s) have been received by a communication device (e.g., one that is to be performing beamforming for use in subsequent signal transmission), differential feedback signal(s) are received. Those differential feedback signal(s) are employed to update the full feedback signal(s) thereby generating updated/modified full feedback signals. Over time, such updated/modified full feedback signals may subsequently be further updated based upon later received inferential feedback signal(s). Such differential feedback signaling takes advantage of time and/or frequency correlation in a communication channel to provide for reduced feedback overhead by feeding back a difference or delta (?) relative to a previous value. For example, instead of providing full feedback signals in each respective/successive communication, feedback overhead is reduced by providing a difference or delta (?).
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Ron Porat, Matthew James Fischer, Eric J. Ojard
  • Patent number: 9118475
    Abstract: Aspects of a method and system for detecting enhanced relative grants in a wireless communications system may include measuring a signal power level of an Enhanced Hybrid ARQ Indicator Channel (E-HICH) and estimating a HOLD signal level of an Enhanced Dedicated Channel (E-DCH) Relative Grant Channel (E-RGCH), based on the measured E-HICH signal power level, wherein the E-RGCH is associated with the E-HICH. The signal power level of the E-HICH in Transmission Time Intervals (TTIs) associated with the E-HICH may be measured. The HOLD signal level may be measured by compensating the measured signal power level of the E-HICH based on whether the E-HICH signal comprises an acknowledgment (ACK), a discontinuous transmission (DTX), or a negative acknowledgment (NACK). The measured signal power level may be compensated by an offset. An UP signal level of the E-RGCH signal may be estimated based on the estimated HOLD signal level.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventor: Jamie Menjay Lin
  • Patent number: 9118339
    Abstract: The present disclosure provides for an analog-to-digital converter (ADC) which selectively compresses an analog input signal to improve noise performance and dynamic input range. The ADC selectively scales an analog input signal when it is closer to an expected value of one or more signal metrics more than when it is further from the expected value of the one or more signal metrics. For example, during the conversion process, the ADC amplifies the analog input signal when it is closer to a mean value ? by a gain factor while selectively adjusting the gain factor when the analog input signal is further from its mean value ? to selectively compress the analog input signal. This selective compression improves input noise performance and dynamic input range of the ADC when compared to the conventional ADC.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Ayaskant Shrivastava, Chun-Ying Chen
  • Patent number: 9116233
    Abstract: A method, system, and computer program product to provide accurate positioning of a vehicle while conserving power is provided. The system includes a receiver configured to receive a positioning signal that determines a position of the vehicle and an auxiliary sensor configured to provide data to supplement the positioning signal so as to provide the position of the vehicle more accurately than with using solely the positioning signal. The system also includes an auxiliary controller coupled to the auxiliary sensor. The auxiliary controller is configured to generate a first signal to power-up the auxiliary sensor if the vehicle is proximate to entering an area that reduces accuracy of the positioning signal, and calibrate the auxiliary sensor prior to the vehicle entering the area; and generate a second signal to power-down the auxiliary sensor if the vehicle is proximate to exiting the area.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Roberto Ernesto Zanutta, Frank van Diggelen, Steven Malkos
  • Patent number: 9118107
    Abstract: Aspects of a method and system for a configurable antenna in an integrated circuit package are provided. In a hybrid circuit comprising an integrated circuit bonded to a multi-layer package, one or more antenna parameters may be adjusted by configuring a plurality of antenna elements via one or more switching elements. In this regard, the antenna elements and/or the switching elements may be within and/or on the multi-layer package and/or within the integrated circuit. The switching elements may be MEMS switches on and/or within the IC and/or the multi-layer package. The IC may be bonded or mounted to the underside of the package and signals may be communicated between the IC and the package via one or more solder balls. The IC may comprise suitable logic, circuitry, and/or code for configuring the antenna elements. The antenna elements may be configured based on desired polarization, antenna gain, and/or frequency.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 9119022
    Abstract: An electronic device may communicate according to a first communication standard and a second communication standard. The first communication standard may have a longer communication range than the second communication standard. The electronic device may send a capability indication through the first communication standard. The capability indication may indicate the electronic device is capable of communicating according to the second communication standard with a shorter communication range than the first communication standard. The electronic device may discover a second electronic device capable of communicating according to the second communication standard and positioned outside of a non-extended communication range of the second communication standard.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventor: Rajesh Kumar Sinha
  • Patent number: 9119012
    Abstract: In one embodiment, a method comprising receiving at a microphone located at a first location audio received from plural speakers, the audio received at a first amplitude level; and responsive to moving the microphone away from the first location to a second location, causing adjustment of the audio provided by the plural speakers to target the first amplitude level at the microphone.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: August 25, 2015
    Assignee: Broadcom Corporation
    Inventors: Ike Ikizyan, Wilf LeBlanc