Patents Assigned to MaxLinear, Inc.
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Patent number: 10334312Abstract: Methods and systems for cross-protocol time synchronization may comprise, for example, in a premises-based network: receiving, by a network controller located at a root node in the premises, signals that conform to one or more first communications protocol; bridging said received signals to conform to a second communications protocol different from the one or more first communications protocol; and communicating said bridged signals to one or more networked devices within said premises-based wired network, wherein only signals conforming to said second communications protocol are concurrently communicated in a frequency range that is independent of frequency range limitations of the one or more first communications protocol and of the second communications protocol, and that is limited only by a frequency range of wiring in the premises-based network. One of the signals conforming to the one or more first communications protocol comprises a data over cable service interface specification (DOCSIS) signal.Type: GrantFiled: February 16, 2016Date of Patent: June 25, 2019Assignee: Maxlinear, Inc.Inventors: Curtis Ling, Timothy Gallagher
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Patent number: 10326463Abstract: Methods and systems for charge compensation for switched-capacitor circuits may comprise, in an electronics device comprising a first voltage source, a switched capacitor load, and a switched capacitor compensation circuit: switching a capacitor in the switched capacitor load from a first voltage to a second voltage; providing a charge to the switched capacitor load from the switched capacitor compensation circuit without requiring added charge from the first voltage source. A reference voltage may be generated utilizing the first voltage source. A replica reference voltage for the switched capacitor compensation circuit may be generated utilizing a second voltage source. The replica reference voltage may be equal to the reference voltage. The replica reference voltage may be equal to a supply voltage, VDD, for circuitry in the electronics device. Capacitors may couple outputs of the first and second voltage sources to ground.Type: GrantFiled: December 30, 2016Date of Patent: June 18, 2019Assignee: Maxlinear, Inc.Inventors: Hao Liu, Yongjian Tang
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Patent number: 10324871Abstract: A first device of a Multimedia Over Coax Alliance (MoCA) network may communicate with a second device of the MoCA network to control power-save operation of the second MoCA device. The first device may control the power-save operation of the second MoCA device based on an amount of data stored in a buffer, wherein the data stored in the buffer is destined for the second device. The buffer may be in a third device which sends the data to the second device, and/or the buffer may be in the first device. The first device may be operable to buffer data destined for the second device while the second device is in a power-saving state.Type: GrantFiled: January 23, 2018Date of Patent: June 18, 2019Assignee: Maxlinear, Inc.Inventors: Timothy Gallagher, Glenn DeLucio, Curtis Ling
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Patent number: 10324179Abstract: A first multifunction radar transceiver comprises a first transmitter and a first receiver. The transmitter is operable to transmit a first radar burst. The receiver is operable to receive reflections of the first radar burst and reflections of a second radar burst transmitted by a second multifunction radar transceiver. The receiver is operable to generate, based on characteristics of the received reflections of the first radar burst and the received reflections of the second radar burst, a first scene representation. The receiver is operable demodulate the second radar burst to recover a second scene representation. The receiver is operable to combine the first scene representation and the second scene representation to generate a composite scene representation.Type: GrantFiled: April 29, 2016Date of Patent: June 18, 2019Assignee: Maxlinear, Inc.Inventors: Curtis Ling, Stefan Szasz
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Patent number: 10326462Abstract: Methods and systems for time interleaved analog-to-digital converter timing mismatch calibration and compensation may include receiving an analog signal on a chip, converting the analog signal to a digital signal utilizing a time interleaved analog-to-digital-converter (ADC), and reducing a blocker signal that is generated by timing offsets in the time interleaved ADC by estimating complex coupling coefficients between a desired digital output signal and the blocker signal utilizing a decorrelation algorithm on frequencies within a desired frequency bandwidth. The decorrelation algorithm may comprise a symmetric adaptive decorrelation algorithm. The received analog signal may be generated by a calibration tone generator on the chip. An aliased signal may be summed with an output signal from a multiplier. The complex coupling coefficients may be determined utilizing the decorrelation algorithm on the summed signals.Type: GrantFiled: October 8, 2018Date of Patent: June 18, 2019Assignee: Maxlinear, Inc.Inventors: Pawandeep Taluja, Mingrui Zhu, Xuefeng Chen, Anand Anandakumar, Sheng Ye, Timothy Gallagher
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Patent number: 10326414Abstract: Systems and methods are provided for dynamically biasing power amplifiers. A power amplifier (PA) that amplifies an input signal may be controlled based on processing of the input signal. The controlling may include adjusting biasing applied to the power amplifier (PA). The processing of the input signal may include applying clipping to the input signal and determining one or more parameters of the input signal. The biasing applied to the power amplifier (PA) may be adjusted based on the one or more parameters of the input signal. The clipping may be configured such that signals applied to positive and negative sides of the power amplifier (PA) are not differential.Type: GrantFiled: September 11, 2017Date of Patent: June 18, 2019Assignee: MAXLINEAR, INC.Inventors: Rahul Bhatia, Timothy Gallagher, Raja Pullela, Sridhar Ramesh
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Patent number: 10319418Abstract: Systems and methods are provided for enhanced parallel bit-interleaving. The parallel bit-interleaving may include, in each of a plurality of cycles, reading a number of bits from an input bitstream; processing the read bits, with the processing including applying a first adjustment to a first combination of bits that includes the read bits and additional bits, wherein each of the additional bits includes a previously read bit in the input bitstream or a pre-set bit; when one or more conditional criteria are met, applying a second adjustment to a second combination of bits that includes bits corresponding to previously read bits, wherein the conditional criteria include completing processing of a full column; writing into memory a number of bits corresponding to the first combination of bits and/or the second combination of bits; and reading from the memory a number of bits, for generating an output corresponding to the particular cycle.Type: GrantFiled: March 12, 2018Date of Patent: June 11, 2019Assignee: MAXLINEAR, INC.Inventor: Jian-Hung Lin
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Patent number: 10310063Abstract: A multifunctional radar transmitter may comprise bus interface circuitry and beamforming circuitry. The beamforming circuitry, with use of a plurality of beamforming coefficients, is operable to process a plurality of baseband signals to generate a millimeter wave radar burst corresponding to a radiation pattern that comprises a first lobe and a second lobe, where the first lobe is at a first angle and the second lobe is at a second angle. The bus interface circuitry is operable to receive, from a first receiver, an indication of interference from the second lobe present at the first receiver. The beamforming circuitry is operable to adjust, based on the indication of interference, the beamforming coefficients such that the second lobe is redirected to a third angle.Type: GrantFiled: May 10, 2016Date of Patent: June 4, 2019Assignee: Maxlinear, Inc.Inventor: Curtis Ling
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Patent number: 10313733Abstract: A wideband receiver system comprises a wideband analog-to-digital converter (ADC) module and a digital frontend (DFE) module. The wideband ADC is configured to concurrently digitize a band of frequencies comprising a plurality of desired channels and a plurality of undesired channels. The DFE module is coupled to the digital in-phase and quadrature signals. The DFE module is configured to select the plurality of desired channels from the digitized band of frequencies, and generate an intermediate frequency (IF) signal comprising the selected plurality of desired channels and having a bandwidth that is less than a bandwidth of the band of frequencies, where the generation comprises frequency shifting of the selected plurality of desired channels. The IF signal may be a digital signal and the DFE is configured to output the IF signal via a serial or parallel interface.Type: GrantFiled: October 24, 2017Date of Patent: June 4, 2019Assignee: Maxlinear, Inc.Inventors: Madhukar Reddy, Curtis Ling, Tim Gallagher
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Patent number: 10313496Abstract: A first Multimedia over Coax Alliance (MoCA) compatible device comprises a physical layer profiling circuit and a spectrum abstraction circuit. The physical layer profiling circuit may for example be operable to measure a performance metric for each of a plurality of subbands on a shared coaxial cable of a MoCA network. The spectrum abstraction circuit may for example be operable to select, based at least in part on the measured performance metric, a subset of the subbands to be used for communication over the coaxial cable between the first MoCA-compatible device and a second MoCA-compatible device. The spectrum abstraction circuit may for example be operable to receive an indication of whether channel bonding is to be used for the communication over the coaxial cable between the first MoCA-compatible device and the second MoCA-compatible device.Type: GrantFiled: July 8, 2016Date of Patent: June 4, 2019Assignee: Maxlinear, Inc.Inventors: Curtis Ling, Sridhar Ramesh
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Patent number: 10312928Abstract: Aspects of a method and apparatus for converting an analog input value to a digital output code are provided. One embodiment of the apparatus includes a digital-to-analog converter, a comparator, and control logic circuitry. The digital-to-analog converter is configured to generate an analog reference value based on a received digital reference value. The comparator is configured to compare an analog input value to the analog reference value after expiration of an allotted settling time for the digital-to-analog converter and generate a comparison result indicative a relationship between the analog input value and the analog reference value. The control logic circuitry is configured to select the allotted settling time for the digital-to-analog converter based on a bit position of a digital output code to be determined, and update the bit position of the digital output code based on the comparison result.Type: GrantFiled: May 18, 2018Date of Patent: June 4, 2019Assignee: MAXLINEAR, INC.Inventors: Kaveh Moazzami, Pawan Tiwari, Gaurav Chandra
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Patent number: 10305525Abstract: A first microwave backhaul assembly comprises a first antenna, a front-end circuit, an inter-backhaul-assembly interface circuit, and an interference cancellation circuit. The first antenna is operable to receive a first microwave signal. The front-end circuit is operable to convert the first microwave signal to a lower-frequency digital signal, wherein the lower-frequency digital signal has energy of a second microwave signal and energy of a third microwave signal. The inter-backhaul-assembly interface circuit is operable to receive information from a second microwave backhaul assembly. The interference cancellation circuit is operable to use the information received via the inter-backhaul-assembly interface circuit during processing of the lower-frequency digital signal to remove, from the first microwave signal, the energy of the third microwave signal. The information received via the inter-backhaul-assembly interface may comprise a signal having energy of the second microwave signal.Type: GrantFiled: February 23, 2018Date of Patent: May 28, 2019Assignee: Maxlinear, Inc.Inventors: Stephane Laurent-Michel, Curtis Ling
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Patent number: 10305180Abstract: A direct-to-home satellite outdoor unit may comprise a reflector, a support structure, circuitry, and an array of antenna elements mounted to the support structure such that energy of a plurality of satellite beams is reflected by the reflector onto the array where the energy is converted to a plurality of first signals. The circuitry may be operable to process the first signals to concurrently generate a plurality of second signals, each of the second signals corresponding to a respective one of the plurality of satellite beams. The circuitry may be operable to process one or more of the second signals for outputting content carried in the one or more of the second signals onto a link to an indoor unit.Type: GrantFiled: January 16, 2014Date of Patent: May 28, 2019Assignee: Maxlinear, Inc.Inventor: Curtis Ling
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Patent number: 10292068Abstract: Methods and systems for optimizing bandwidth utilization in an in-home network may comprise determining usage and/or quality of communication links operating in accordance with first and second communication protocols in a multi-protocol wired and wireless network. Data communication may be routed from a first communication link operating in accordance with the first communication protocol to a second communication link operating in accordance with the second communication protocol, based on the determining. The first communication protocol may include a multimedia over cable alliance (MoCA) standard and the second communication protocol may include an IEEE 802.11x standard. The determining and routing may be performed by a MoCA network controller. The first communication protocol may include an IEEE 802.11x standard and the second communication protocol may include a MoCA standard. The rerouting may increase bandwidth usage efficiency and/or data throughput of the network.Type: GrantFiled: October 11, 2018Date of Patent: May 14, 2019Assignee: Maxlinear, Inc.Inventor: Timothy Gallagher
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Patent number: 10291267Abstract: Systems and methods are provided for band-limited digital pre-distortion (DPD) expansion estimation and curve adjustment. Pre-distortion adjustments may be applied during processing of an input signal, and expansion introduced as result of applying the pre-distortion adjustments may then be estimated. Expansion adjustments may then be determined based on the estimated expansion, and the expansion adjustments may be applied in a feedback manner during subsequent processing operations.Type: GrantFiled: August 4, 2016Date of Patent: May 14, 2019Assignee: MAXLINEAR, INC.Inventor: Elad Shaked
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Patent number: 10291246Abstract: Systems and methods are provided for digital-to-analog conversions with adaptive digital offsets. A digital offset may be determined and applied to a digital input to a digital-to-analog converter (DAC), and digital-to-analog conversions are then applied via the DAC to the digital input with the digital offset. The digital offset may be set to account for one or more conditions relating to inputs to the DAC, with the one or more conditions affecting switching characteristics of one or more of a plurality of conversion elements in the DAC. The digital offset may be determined dynamically and adaptively, such as based on the input and/or conditions relating to the input. The adjustments may be selectively applied to the digital offset for particular input conditions.Type: GrantFiled: June 26, 2017Date of Patent: May 14, 2019Assignee: MAXLINEAR, INC.Inventors: Gaurav Chandra, Tao Zeng, Shantha Murthy Prem Swaroop, Jianyu Zhu
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Patent number: 10284386Abstract: Systems and methods systems and methods for efficiently and securely forming a communication network. As a non-limiting example, various aspects of the present disclosure provide systems and methods, for example utilizing a plurality of different security modes, for forming a premises-based network (e.g., a MoCA network).Type: GrantFiled: August 28, 2015Date of Patent: May 7, 2019Assignee: Maxlinear, Inc.Inventors: Yoav Hebron, Na Chen, Ronald Lee
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Patent number: 10284215Abstract: Methods and systems are provided for dynamic power switching in current-steering digital-to-analog converters (DACs). A DAC circuit may be configured to apply digital-to-analog conversions based on current steering, and to particularly incorporate use of dynamic power switching during conversions. The DAC circuit may comprise a main section, which may connect a main supply voltage to a main current source. The main section may comprise a positive-side branch and a negative-side branch, which may be configured to steer positive-side and negative-side currents, such as in a differential manner, to effectuate the conversions. The dynamic power switching may be applied, for example, via a secondary section connecting a main current source in the DAC circuit to a secondary supply voltage. The secondary supply voltage may be configured such that it may be less than the main supply voltage used in driving the current steering in the DAC circuit.Type: GrantFiled: April 30, 2018Date of Patent: May 7, 2019Assignee: Maxlinear, Inc.Inventor: Jianyu Zhu
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Patent number: 10284899Abstract: A terrestrial receiver at a premises includes a plurality of antennas and a corresponding plurality of tuners. The terrestrial receiver receives terrestrial television signals via the plurality of antennas and the plurality of tuners and diversity combines a corresponding plurality of terrestrial television channels within the received terrestrial television signals, for example, based on control signals received from one or more customer premises equipment (CPE). The terrestrial receiver processes the diversity combined corresponding plurality of terrestrial television channels and communicates the processed and diversity combined corresponding plurality of terrestrial television channels to the one or more CPE. The diversity combined corresponding plurality of terrestrial television channels may be remodulated, and converted to corresponding analog signals prior to being communicated to the one or more CPE.Type: GrantFiled: December 13, 2017Date of Patent: May 7, 2019Assignee: Maxlinear, Inc.Inventor: Curtis Ling
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Patent number: 10285116Abstract: Systems and methods for admitting new nodes into an existing network, for example a MoCA network. As a non-limiting example, various aspects of the present disclosure provide systems and methods for adding a new node to an existing network without requiring on-site manual configuration, for example utilizing communication between the new node and a network coordinator of the existing network prior to admission of the new node to the existing network.Type: GrantFiled: August 12, 2015Date of Patent: May 7, 2019Assignee: Maxlinear, Inc.Inventors: Yoav Hebron, Na Chen, Ronald Lee