Patents Assigned to Broadcom
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Publication number: 20100109931Abstract: A wireless electronic device includes a rechargeable battery, a receiver, and a shut down module. The rechargeable battery is at least partially charged. The receiver is configured to enable wireless communications for the wireless device. The receiver is capable of receiving wireless commands configured to cause corresponding functions to be performed in the wireless electronic device, which may include test functions, calibration functions, and shut down functions. The shut down module is configured to cause the wireless electronic device to initiate a shut down protocol according to a shut down command received by the receiver.Type: ApplicationFiled: November 3, 2009Publication date: May 6, 2010Applicant: BROADCOM CORPORATIONInventors: Domitille Esnard, George Andrew Wyper
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Publication number: 20100110997Abstract: A multiservice communication device includes a plurality of transceivers that wirelessly transceive network data with a corresponding plurality of networks in accordance with a corresponding plurality of network protocols, wherein the plurality of transceivers includes at least one cognitive radio transceiver that is configured based on cognitive transceiver configuration data received from a management unit in communication with the multiservice communication device via a control channel.Type: ApplicationFiled: November 4, 2008Publication date: May 6, 2010Applicant: Broadcom CorporationInventors: Vinko Erceg, David John Rosmann, Brima B. Ibrahim, Jeyhan Karaoguz, John Walley, Arya Reza Behzad
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Publication number: 20100115032Abstract: Methods and network device apparatus for discovering interconnections between a plurality of network devices are disclosed. An example network device apparatus includes a first stack port configured to couple the network device with a next network device and a second stack port configured to couple the network device with a previous network device. The example network device is configured to send, to the next network device through the first stack port, a first probe packet and a routing packet. The example network device is further configured to receive, from the previous network device through the second stack port, a second probe packet and the routing packet. The example network device is still further configured to confirm that the previous network device and the next network device have received configuration information included in the routing packet.Type: ApplicationFiled: January 8, 2010Publication date: May 6, 2010Applicant: Broadcom CorporationInventors: Brian Baird, Daniel Talayco
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Publication number: 20100110977Abstract: A management unit network manages a plurality of multiservice communication devices capable of communicating via a plurality of networks. The management unit includes a plurality of local management units, each of the plurality of local management units engaging in bidirectional data communication with at least one of the plurality of multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to the at least one of the plurality of multiservice communication devices and inbound control data received from at least one of the plurality of multiservice communication devices. A first regional management unit processes the inbound data to produce the outbound data and for sending the outbound data to the at least one of the plurality of local management units and on to the multiservice communication devices.Type: ApplicationFiled: November 4, 2008Publication date: May 6, 2010Applicant: Broadcom CorporationInventors: Vinko Erceg, Jeyhan Karaoguz, John Walley, Arya Reza Behzad, David John Rosmann, Brima B. Ibrahim
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Publication number: 20100111034Abstract: A management unit allocates network resources to a plurality of multiservice communication devices capable of communicating via a plurality of networks. The management unit includes a communication device interface for facilitating a bidirectional data communication with the plurality of multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to at least one of the plurality of multiservice communication devices and inbound control data received from at least one of the plurality of multiservice communication devices, wherein the wireless control channel is separate from the communication between the plurality of multiservice communication devices and the plurality of networks. A network interface receives network resource data from the plurality of networks.Type: ApplicationFiled: November 4, 2008Publication date: May 6, 2010Applicant: Broadcom CorporationInventors: Vinko Erceg, Arya Reza Behzad, David John Rosmann, Brima B. Ibrahim, Jeyhan Karaoguz, John Walley
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Publication number: 20100115151Abstract: A method relating to wireless human interface device (HID) coordination is disclosed. A first human interface device (HID) is wirelessly coupled to two or more computing devices, wherein the first HID is configured to toggle between interactions with each of the two or more computing devices. An inquiry or paging message is broadcast to one or more HIDs, including a second HID wirelessly coupled to the two or more computing devices, wherein the second HID is configured to receive and provide a response to the inquiry or paging message. The second HID is located based on the response to the inquiry or paging message. A wireless link is established between the first HID and the second HID based on tshe identifying, wherein the first HID is configured to coordinate, via the wireless link, interactions with the two or more computing devices by both the first HID and the second HID based on the toggle.Type: ApplicationFiled: January 12, 2010Publication date: May 6, 2010Applicant: Broadcom CorporationInventor: Asif Grushkevich
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Publication number: 20100115195Abstract: Methods, systems and computer program products to implement hardware memory locks are described herein. A system to implement hardware memory locks is provided. The system comprises an off-chip memory coupled to a SOC unit that includes a controller and an on-chip memory. Upon receiving a request from a requester to access a first memory location in the off-chip memory, the controller is enabled to grant access to modify the first memory location based on an entry stored in a second memory location of the on-chip memory. In an embodiment, the on-chip memory is Static Random Access Memory (SRAM) and the off-chip memory is Random Access Memory (RAM).Type: ApplicationFiled: January 12, 2010Publication date: May 6, 2010Applicant: Broadcom CorporationInventor: Fong PONG
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Publication number: 20100115372Abstract: Header encoding for SC and/or OFDM signaling using shortening, puncturing, and/or repetition in accordance with encoding header information within a frame to be transmitted via a communication channel employs different respective puncturing patterns as applied to different portions thereof. For example, a first puncturing pattern is applied to a first portion of the frame, and a second puncturing pattern is applied to a second portion of the frame (the second portion may be a repeated version of the first portion). Shortening (e.g., by padding 0-valued bits thereto) may be made to header information bits before they undergo encoding (e.g., in an LDPC encoder). One or both of the information bits and parity/redundancy bits output from the encoder undergo selective puncturing. Moreover, one or both of the information bits and parity/redundancy bits output from the encoder may be repeated/spread before undergoing selective puncturing to generate a header.Type: ApplicationFiled: November 4, 2009Publication date: May 6, 2010Applicant: BROADCOM CORPORATIONInventors: Jason A. Trachewsky, Ba-Zhong Shen
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Publication number: 20100109632Abstract: An integrated circuit and method in an integrated circuit for providing electrical power utilizing digital power regulation. Various aspects of the present invention provide an integrated circuit comprising a power supply module that outputs electrical power at an output voltage level. An error determination module may receive a power supply reference signal and a signal indicative of the output voltage level and output a power supply error signal. A digital controller module may receive the power supply error signal, digitally process the power supply error signal, and output a power supply control signal. A power output-monitoring module may monitor the electrical power output from the power supply module and output the signal indicative of the output voltage level. The power supply module may receive the power supply control signal and output the electrical power based, at least in part, on the power supply control signal.Type: ApplicationFiled: January 11, 2010Publication date: May 6, 2010Applicant: Broadcom CorporationInventor: Tom Kwan
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Publication number: 20100110941Abstract: A management unit includes a communication device interface for facilitating a bidirectional data communication with multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to at least one of the multiservice communication devices and inbound control data received from at least one of the multiservice communication devices. At least one of the multiservice communication devices includes a collaboration module. A network interface receives network resource data from a plurality of networks. A management processing unit processes the inbound control data and the network resource data and that generates the outbound control data in response thereto to collaboratively establish at least one device setting of at least one of the multiservice communication devices via the collaboration module.Type: ApplicationFiled: November 4, 2008Publication date: May 6, 2010Applicant: Broadcom CorporationInventors: Vinko Erceg, Brima B. Ibrahim, Jeyhan Karaoguz, John Walley, Arya Reza Behzad, David John Rosmann
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Publication number: 20100111145Abstract: A baseband unit includes an input/output interface and a processing module. The input/output interface module receives a data word of outbound data and outputs a plurality of outbound symbols. The processing module converts the data word into a bit repetitive data word; encodes the bit repetitive data word to produce an encoded data block; and converts the encoded data block into the plurality of outbound symbols.Type: ApplicationFiled: October 23, 2009Publication date: May 6, 2010Applicant: BROADCOM CORPORATIONInventors: JASON A. TRACHEWSKY, CHRISTOPHER J. HANSEN, ANDREW J. BLANKSBY, MURAT MESE, BA-ZHONG SHEN
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Publication number: 20100111052Abstract: A management unit manages a plurality of multiservice communication devices capable of communicating via a plurality of networks. The management unit includes a device interface for facilitating a bidirectional data communication with the plurality of multiservice communication devices via a wireless control channel, the bidirectional data communication including outbound control data sent to at least one of the plurality of multiservice communication devices and inbound control data received from at least one of the plurality of multiservice communication devices via either a logical or physical control channel. A network interface receives network resource data from the plurality of networks. A management processing unit includes a local agent that gathers environmental data, wherein the management processing unit processes the inbound control data, the environmental data and the network resource data and that generates the outbound control data in response thereto.Type: ApplicationFiled: November 4, 2008Publication date: May 6, 2010Applicant: Broadcom CorporationInventors: Vinko Erceg, David John Rosmann, Brima B. Ibrahim, Jeyhan Karaoguz, John Walley, Arya Reza Behzad
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Publication number: 20100110876Abstract: A network device for generating an expanded long training sequence with a minimal peak-to-average ratio. The network device includes a signal generating circuit for generating the expanded long training sequence. The network device also includes an Inverse Fourier Transform for processing the expanded long training sequence from the signal generating circuit and producing an optimal expanded long training sequence with a minimal peak-to-average ratio. The expanded long training sequence and the optimal expanded long training sequence are stored on more than 52 sub-carriers.Type: ApplicationFiled: January 8, 2010Publication date: May 6, 2010Applicant: BROADCOM CORPORATIONInventors: Jason Alexander Trachewsky, Rajendra T. Moorti
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Publication number: 20100109765Abstract: An electronic device includes a rechargeable battery, an electrical circuit, a battery safety circuit, and a power down mode circuit. The electrical circuit is configured to generate a power mode control signal. The power down mode circuit receives the power mode control signal. If the power mode control signal has a first value, the power down mode circuit is configured to force a voltage at a first port of the battery safety circuit to a voltage value that is less than an under voltage lock out (UVLO) threshold value of the battery safety circuit to transition the electronic device from a normal operating mode to a low current power down mode. The electronic device may further include a wake up mode circuit.Type: ApplicationFiled: November 3, 2009Publication date: May 6, 2010Applicant: BROADCOM CORPORATIONInventors: Domitille Esnard, John Walley, Louis Pandula
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Patent number: 7710184Abstract: The invention refers to signal processing circuits, more particularly, to switch capacitor circuits, and methods for reducing inter-symbol-interference. A switch capacitor circuit with reduced Inter-Symbol-Interference effect is provided, comprising: a voltage source, a first capacitor, a second capacitor, and at least one switch configured to be switched in a way that the first capacitor is charged to a first voltage by means of the voltage source, and then discharged by means of the second capacitor, thereby reducing the Inter-Symbol-Interference effect.Type: GrantFiled: September 20, 2006Date of Patent: May 4, 2010Assignee: Broadcom CorporationInventors: Franciscus Maria Leonardus van der Goes, Jan Mulder, Christopher Michael Ward
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Patent number: 7710300Abstract: A sigma-delta digital to analog converter (DAC) module converts the digital input signal to the analog output signal through segmentation, including a primary and a secondary sigma-delta modulator. The primary sigma-delta modulator produces a primary digital segment and a primary quantization error. A primary sample is delayed, decoded, scrambled and converted to produce a primary analog segment. A secondary sigma-delta modulates the primary quantization error to produce a secondary digital segment which is noise shaped by a noise transfer function of the primary sigma-delta modulator to produce a noise shaped secondary digital segment which is decoded, scrambled, converted and scaled to produce a secondary analog segment. An adder combines the primary analog segment and the secondary analog segment to produce the analog output signal.Type: GrantFiled: April 17, 2008Date of Patent: May 4, 2010Assignee: Broadcom CorporationInventor: Tom W. Kwan
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Patent number: 7711967Abstract: An apparatus and method for multi-point detection in a power source equipment (PSE) device is provided. During multi-point detection, a series of at least four currents is sequentially applied to a link port of the PSE device. Each current is applied during a different measurement interval. A voltage measurement sample is obtained for each of the measurement intervals. A difference in voltage between alternating voltage samples is determined and used by a detection module to determine whether a valid power device is coupled to the link port of the PSE.Type: GrantFiled: January 17, 2007Date of Patent: May 4, 2010Assignee: Broadcom CorporationInventors: Agnes Woo, Anil Tammineedi, Ichiro Fujimori, David Chin, John Perzow
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Patent number: 7710895Abstract: There is provided a method of managing power utilization for use by a first communication system having a first communication mode and a second communication mode, for communication over a PHY connection through a cable connecting the two systems. The method comprises establishing the PHY connection with the second communication system, detecting interoperability of the two systems in the first communication mode, determining a length of the cable connecting the first communication system to the second communication system, selecting a mode based on the length of the cable, if the detecting detects interoperability of the first communication system and the second communication system in the first communication mode, selecting the second communication mode as the mode, if the detecting does not detect interoperability of the first communication system and the second communication system in the first communication mode, communicating data using the PHY connection through the cable in the mode.Type: GrantFiled: March 14, 2007Date of Patent: May 4, 2010Assignee: Broadcom CorporationInventor: James Muth
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Patent number: 7711999Abstract: A method and system for performing diagnostic tests on a real-time system controlled by a state machine. A sequence of states recorded as the state machine operates is used to determine error conditions. The sequence of states is compared to expected sequences of states to determine what, if any, errors have occurred. If the real-time system, such as a transceiver in a communication system, has adaptive components, the status of the adaptive components is used to estimate the condition of any external systems coupled to the real-time system.Type: GrantFiled: February 26, 2008Date of Patent: May 4, 2010Assignee: Broadcom CorporationInventors: Oscar E. Agazzi, Kenneth Phan Hung, David I. Sorensen
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Patent number: 7711339Abstract: Methods and apparatus for providing a local oscillator (LO) signal are disclosed. An example apparatus includes a circuit for providing the LO signal. The circuit includes a voltage controlled oscillator (VCO) that is configured to operate at a first supply voltage. The VCO is also configured to produce a VCO signal. The circuit also includes an LO generator that is coupled with the VCO so as to receive the VCO signal. In the example apparatus, the LO generator is configured to operate at a second supply voltage, where the second supply voltage is greater than the first supply voltage. Further, the LO generator includes one or more resistively loaded circuits for producing the LO signal from the VCO signal.Type: GrantFiled: August 10, 2006Date of Patent: May 4, 2010Assignee: Broadcom CorporationInventor: Behnam Mohammadi