Patents Assigned to Broadcom
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Patent number: 9118966Abstract: 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: GrantFiled: March 29, 2011Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventor: Steve (Stephane) Rodgers
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Patent number: 9118442Abstract: 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: GrantFiled: October 9, 2009Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Li Fung Chang, Khoi Ly, Bin Liu, Simon Baker
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Patent number: 9119160Abstract: 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: GrantFiled: September 30, 2011Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Steven Hall, Mohamed Awad, Theodore Trost
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Patent number: 9118592Abstract: 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: GrantFiled: August 21, 2012Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Jeyhan Karaoguz, James D. Bennett
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Patent number: 9118115Abstract: 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: GrantFiled: September 30, 2011Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Nicolaos G. Alexopoulos, Seunghwan Yoon
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Patent number: 9117324Abstract: 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: GrantFiled: February 27, 2012Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventor: Mark Buer
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Patent number: 9119129Abstract: 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: GrantFiled: April 2, 2013Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Qi Wang, Matthew James Fischer
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Patent number: 9118982Abstract: 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: GrantFiled: February 8, 2012Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Amiad Dvir, Eliezer Weitz
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Patent number: 9118367Abstract: 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: GrantFiled: March 22, 2013Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Ray (Ramon) Gomez, Leonard Dauphinee, Massimo Brandolini, Jianhong Xiao, Dongsoo Koh, Young Shin, Chonghua Zhong, Reza Rahman Khan
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Patent number: 9118649Abstract: 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: GrantFiled: September 13, 2013Date of Patent: August 25, 2015Assignee: BROADCOM CORPORATIONInventors: Balwinder Boora, Henry Li, Paul Shore, Stephen Mueller
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Patent number: 9118923Abstract: 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: GrantFiled: April 27, 2006Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventor: Stephen Gordon
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Patent number: 9118728Abstract: 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: GrantFiled: June 8, 2009Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Wael William Diab, Scott Powell
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Patent number: 9118412Abstract: 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: GrantFiled: September 27, 2011Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Amiad Dvir, Assaf Naor
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Patent number: 9118364Abstract: 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: GrantFiled: September 22, 2011Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Ron Porat, Matthew James Fischer, Eric J. Ojard
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Patent number: 9118475Abstract: 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: GrantFiled: November 10, 2009Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventor: Jamie Menjay Lin
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Patent number: 9118339Abstract: 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: GrantFiled: June 28, 2013Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Ayaskant Shrivastava, Chun-Ying Chen
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Patent number: 9116233Abstract: 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: GrantFiled: July 10, 2012Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Roberto Ernesto Zanutta, Frank van Diggelen, Steven Malkos
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Patent number: 9118107Abstract: 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: GrantFiled: May 3, 2012Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventor: Ahmadreza Rofougaran
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Patent number: 9119022Abstract: 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: GrantFiled: July 12, 2013Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventor: Rajesh Kumar Sinha
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Patent number: 9119012Abstract: 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: GrantFiled: June 28, 2012Date of Patent: August 25, 2015Assignee: Broadcom CorporationInventors: Ike Ikizyan, Wilf LeBlanc