Patents Assigned to Broadcom
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Publication number: 20110115606Abstract: A vehicle control system includes at least one touch pad having a plurality of touch sensitive elements and processing circuitry communicatively coupled to the at least one touch pad. The processing circuitry is operable to receive touch pad input from the at least one touch pad, the touch pad input corresponding to a user's touch of at least some of the plurality of touch sensitive elements. The processing circuitry further processes the touch pad input to determine user finger characteristics. The processing circuitry further processes the user finger characteristics to identify the user via pattern recognition and alters at least one vehicle setting based upon the identified user.Type: ApplicationFiled: October 26, 2010Publication date: May 19, 2011Applicant: BROADCOM CORPORATIONInventors: QIANG FU, JEYHAN KARAOGUZ, TOM W. KWAN
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Publication number: 20110115074Abstract: Methods, systems, and apparatuses for printing under bump metallization (UBM) features on chips/wafers are provided. A wafer is received that has a surface defined by a plurality of integrated circuit regions. Each integrated circuit region has a passivation layer and a plurality of terminals on the surface of the wafer accessible through openings in the passivation layer. A plurality of UBM features are formed on the surface of the wafer in the form of an ink such that each UBM feature is formed electrically coupled with a corresponding terminal of the plurality of terminals. An ink jet printer may be used to print the ink in the form of the UBM feature. A UBM feature may be formed directly on a corresponding terminal, or on routing that is coupled to the corresponding terminal. A bump interconnect may be formed on the UBM feature.Type: ApplicationFiled: March 24, 2010Publication date: May 19, 2011Applicant: BROADCOM CORPORATIONInventors: Kunzhong (Kevin) Hu, Edward Law
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Publication number: 20110118024Abstract: Operating a game controller by setting initial operational parameters of at least one touch sensitive pad of the game controller. The touch sensitive pad has a plurality of touch sensitive elements. Touch pad input is received from the at least one touch sensitive pad of the game controller. The touch pad input corresponds to a user's touch of at least some of the plurality of touch sensitive elements. The touch pad input is at least partially processed by processing circuitry of the game controller and transmitted to a game console via a communications interface of the game controller for processing. Upon meeting an operational parameter alteration condition, the operational parameters of the at least one touch sensitive pad of the game controller are altered.Type: ApplicationFiled: October 26, 2010Publication date: May 19, 2011Applicant: BROADCOM CORPORATIONInventors: BOB LUKAS, DAVID A. SOBEL, SUMANT RANGANATHAN, JOHN WALLEY, PIETER VORENKAMP
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Publication number: 20110116357Abstract: A system, method and apparatus for reducing a power consumed by a physical layer device (PHY). A length of a cable connecting the PHY to a link partner is determined. Based on the length, power provided to one or more components of the PHY, or any portion thereof, is reduced. The power provided is reduced while maintaining a level of reliability specified by a protocol governing operation of the PHY. The length can be determined using time-domain reflectometry (TDR) techniques. Any portion of an echo cancellation filter, a crosstalk filter, an equalizer, a precoder, an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), a forward error correction (FEC) decoder and/or an FEC coder can be powered-down or power-optimized to reduce the overall power consumed by the PHY. The protocol governing operation of the PHY can be IEEE 802.3.Type: ApplicationFiled: November 11, 2010Publication date: May 19, 2011Applicant: Broadcom CorporationInventors: Nariman YOUSEFI, Scott POWELL
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Publication number: 20110118025Abstract: A game controller with a communications interface, at least one touch sensitive pad having a plurality of touch sensitive elements, and processing circuitry coupled to the communications interface and the at least one touch sensitive pad. The processing circuitry receives touch pad input via the plurality of touch sensitive elements of the at least one touch sensitive pad. The processing circuitry then transmits the touch pad input to a game console via the communications interface. The touch sensitive pad can have a plurality of separate and distinct touch sensitive pads, allowing the processing circuitry to receive touch pad input via each of the plurality of separate and distinct touch sensitive pads. Touch pad input could include user finger and/or user thumb touch pad input.Type: ApplicationFiled: October 26, 2010Publication date: May 19, 2011Applicant: BROADCOM CORPORATIONInventors: ROBERT M. LUKAS, DAVID A. SOBEL, MONIKA GUPTA, QIANG FU, SUMANT RANGANATHAN, TOM W. KWAN, XINYU YU
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Publication number: 20110118026Abstract: Operating a game controller to identify a user by receiving touch pad input from at least one touch sensitive pad of the game controller that has a plurality of touch sensitive elements. The touch pad input corresponds to the user's touch of at least some of the plurality of touch sensitive elements. The touch pad input is at least partially processed by processing circuitry of the game controller and transmitted to a game console via a communications interface of the game controller for processing of the at least partially processed touch pad input to identify the user via pattern recognition. At least partially processing the touch pad input can be by identifying at least one finger orientation, at least one finger spacing, at least one finger width, a plurality of finger knuckle/joint locations, and/or a plurality of finger lengths based upon the touch pad input.Type: ApplicationFiled: October 26, 2010Publication date: May 19, 2011Applicant: BROADCOM CORPORATIONInventors: BOB LUKAS, DAVID A. SOBEL, MONIKA GUPTA, QIANG FU, SUMANT RANGANATHAN, JEYHAN KARAOGUZ, TOM W. KWAN, XINYU YU
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Patent number: 7944398Abstract: An integrated circuit (IC) includes an RF transceiver, a die, a package substrate, an antenna element, and a transmission line circuit. The die supports the RF transceiver and the package substrate supports the die. The antenna element has a length less than approximately one-tenth of a wavelength or greater than one-and-one-half times the wavelength for a frequency band of approximately 55 GHz to 64 GHz. The transmission line circuit coupling the RF transceiver to the antenna element.Type: GrantFiled: September 24, 2008Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventor: Ahmadreza (Reza) Rofougaran
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Patent number: 7945387Abstract: A method and apparatus for distributing satellite navigation data is described. In one example, satellite signals are processed at each of a plurality of reference stations to receive a respective plurality of satellite navigation data streams. Packets are formed in response to said plurality of satellite navigation data streams to generate a plurality of packetized satellite navigation data streams. The packetized satellite navigation data streams are sent to a processing system. The processing system removes duplicate packets within said plurality of packetized satellite navigation data streams to generate a combined packet stream. The combined packet stream is then sent into a communication network.Type: GrantFiled: November 21, 2003Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: Sergei Podshivalov, Charles Abraham
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Patent number: 7944376Abstract: A transmit signal generated by the baseband processor in a translational loop type RF transmitter is “pre-distorted” so as to counter act magnitude distortion and group delay variation imposed by a narrow PLL signal filter. The pre-distortion occurs in two steps: a magnitude equalizer in the baseband processor pre-distorts the amplitude of the transmit signal according to the inverse of the PLL signal filter magnitude response, and a group delay equalizer linearizes the phase response of the entire transmitter chain, i.e., pre-distorts the transmit signal such that the combined phase response of magnitude equalizer, group delay equalizer, and PLL signal filter is linear. With such pre-distortion, a loop filter is provided for with component values that define a relatively small bandwidth for the loop filter to filter spurious tones that result from an IF reference feedthrough to a voltage controlled oscillator of the translational loop.Type: GrantFiled: July 31, 2009Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventor: Henrik T. Jensen
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Patent number: 7944221Abstract: A system and method for automatically discovering total transistor resistance in a hybrid power over Ethernet (PoE) architecture. A critical factor for a PoE system is the total resistance of the power FET. Typical PoE systems consist of a single power FET that may be integrated with the controller or external to the controller. In a hybrid architecture the PoE system consists of both an internal power FET and an external power FET. The external power FET can be used to customize a design to meet a particular application or need. The total resistance in the hybrid architecture can be automatically determined using voltage and current measurements of the internal and external power FETs.Type: GrantFiled: February 7, 2008Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: Wael William Diab, Hemanth Nekkileru, Sesha Thalpasai Panguluri
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Patent number: 7945258Abstract: A method to adapt channel quality indicator (CQI) reports from user equipment (UE) is provided. This involves first determining the presence of a high-speed shared control channel (HS-SCCH) signal. An estimated signal to noise ratio (SNR) is also determined. Next an SNR correction based on the presence or lack thereof of the HS-SCCH signal and the CRC checks for HS-SCCH and HS-DSCH signals are determined and applied to the estimated SNR. The CQI report is then generated based on the corrected estimated SNR. This CQI report which takes into account a corrected estimated SNR may then be used to adjust the HS-SCCH signal in an HSDPA telephony system.Type: GrantFiled: November 5, 2007Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: Nelson R. Sollenberger, Li Fung Chang, Xiaoxin Qiu, Hongwei Kong, Severine Catreux
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Patent number: 7945209Abstract: A system may include a scanning module that is arranged and configured to scan communication channels for channel interference, a channel assessor module that is arranged and configured to determine a type of channel interference present on one or more of the communication channels, and a blocking module that is arranged and configured to selectively block one or more of the communication channels based on the type of channel interference.Type: GrantFiled: November 21, 2007Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: Asif Grushkevich, Jagdish Gopalakrishnan
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Patent number: 7944394Abstract: Method and apparatus for validating an initial position in a satellite positioning system using range-rate measurements is described. In one example, range-rate measurements are obtained at the remote receiver with respect to a plurality of satellites. Expected range-rates are computed with respect to the plurality of satellites using the initial position. Single differences are computed using the range-rate measurements. Expected single differences are computed using the expected range-rates. Single difference residuals are computed between the single differences and the expected single differences. The single difference residuals are compared to a threshold. The initial position may be deemed valid if the absolute value of each of the single difference residuals is less than or equal to the threshold. A valid initial position may be used to fix the pseudorange integers.Type: GrantFiled: March 18, 2009Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventor: Frank van Diggelen
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Patent number: 7944907Abstract: A wireless local area network (WLAN) transceiving integrated circuit services voice communications in a WLAN with at least one other WLAN device. The WLAN transceiving integrated circuit includes a WLAN interface, an input buffer, a transcoder, and a processor. The WLAN interface wirelessly communicates with the at least one WLAN device to receive packetized audio data from the at least one WLAN device. The input buffer operably couples to the WLAN interface and receives the packetized audio data from the WLAN interface. The transcoder converts the packetized audio data to Pulse Code Modulated (PCM) audio data and outputs the PCM audio data to a coupled audio COder/DECoder (CODEC) such that the PCM audio data is substantially temporally aligned with Radio Frequency (RF) slots of the WLAN interface.Type: GrantFiled: August 28, 2007Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: Vivan Chou, Charles Aragones, Sherman Lee
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Single chip wireless transceiver operable to perform voice, data and radio frequency (RF) processing
Patent number: 7945216Abstract: A single chip wireless transceiver operable to perform voice, data and radio frequency (RF) processing is provided. This processing may be divided between various processing modules. This single chip includes a processing module having an ARM microprocessor and a digital signal processor (DSP), an RF section, and an interface module. The processing module converts an outbound voice signal into an outbound voice symbol stream, converts an inbound voice symbol stream into an inbound voice signal, converts outbound data into an outbound data symbol stream, and converts an inbound data symbol stream into inbound data. These functions may be divided between the ARM microprocessor and DSP, where the DSP supports physically layer type applications and the ARM microprocessor supports higher layer applications. Further bifurcation may be based on voice applications, data applications, and/or RF control.Type: GrantFiled: December 18, 2007Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: Vafa James Rakshani, Nelson R. Sollenberger, Claude G. Hayek, Frederic Christian Marc Hayem -
Patent number: 7944251Abstract: According to one exemplary embodiment, a transmitter module includes a line drive including a current digital-to-analog converter, where the line driver provides an analog output waveform. The current digital-to-analog converter receives a digitally filtered input waveform including at least two voltage steps. The at least two voltage steps of the digitally filtered input waveform cause a rise time of the analog output waveform to have a reduced dependency on process, voltage, and temperature variations in the line driver, while meeting stringent rise time requirements. The digitally filtered input waveform has an initial voltage level and a final voltage level, where the final voltage level is substantially equal to a sum of the at least two voltage steps of the digitally filtered input waveform.Type: GrantFiled: March 9, 2009Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: Andrew Chen, Joseph Aziz, Derek Tam
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Patent number: 7945725Abstract: A system may include a content addressable memory (CAM) that is configured to include multiple services, receive a key, where the key includes source port information and IP information related to a packet received on one of multiple ports, and output a match index value in response to a search of the CAM using the key. The system may include a policy memory module that is configured to receive the match index value and to output meter controls and a meter address based on the match index value, a port meter map module that is configured to receive the source port information and to output a mask value and a per port meter value, and a remapping module that is configured to receive the meter address, receive the mask value and the per port meter value, and modify the meter address based on those values.Type: GrantFiled: April 11, 2008Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: Eric Baden, Puneet Agarwal
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Patent number: 7944659Abstract: An ESD protection circuit for a switch coupled to high-speed signaling pins of an integrated circuit includes a first string of clamping elements and a second string of clamping elements. The first string of clamping elements has a collective capacitance less than the capacitance of a single clamping element. The first string of clamping elements is operably coupled to the drain and source of the transistor and conducts when a first polarity ESD voltage is applied to the high-speed pins. The second string of clamping elements has a collective capacitance less than the capacitance of one clamping element. The second string of clamping elements is operably coupled to the drain and source of the transistor and conducts when a second polarity ESD voltage is applied to the high speed signaling pins.Type: GrantFiled: September 28, 2009Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventor: Bojko Frederik Marholev
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Patent number: 7945047Abstract: A system and method for distribution of cryptographic keys to data encryption and decryption devices used to protect digital video/multimedia data transmitted over a display link between a digital video/multimedia source and a display device are provided. The digital data, which may be in Digital Visual Interface (DVI) format, from a digital video/multimedia source, such as, for example, a Digital Versatile Disk (DVD) player, a set-top box, or a computer, is encrypted prior to transmission on the display link. Use of key management and storage that are external to the data encryption or decryption devices enables downloading of new keys from external key sources. Encrypted data encryption and decryption keys may be included in a cable signal received by the set-top box. The data encryption and decryption keys from an internal or external key source may be encoded in the DVD player, set-top box, or computer prior to being sent over a control bus to a display link receiver or a display device.Type: GrantFiled: November 7, 2006Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: David Rogoff, Steven Petilli
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Patent number: 7944380Abstract: A wireless local area network (WLAN) transceiving integrated circuit services voice communications in a WLAN with at least one other wireless device and includes a WLAN interface, a transcoder, and a switch box. The WLAN interface wirelessly communicates with at least one wireless device to receive inbound packetized audio data from the at least one wireless device and to transmit outbound packetized audio data to the at least one wireless device. The transcoder receives the inbound packetized audio data and converts the inbound packetized audio data to inbound Pulse Code Modulated (PCM) WLAN audio data. The WLAN interface also receives outbound PCM WLAN audio data and converts the outbound PCM WLAN audio data to the outbound packetized audio data. The switch box operably couples between the transcoder and a PCM bus, to which an audio COder/DECoder (CODEC) couples. A speaker and a microphone coupled to the audio CODEC.Type: GrantFiled: July 11, 2008Date of Patent: May 17, 2011Assignee: Broadcom CorporationInventors: Charles T. Aragones, Sherman Lee, Vivian Chou