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121.发明申请公开(公告)号：US20190198993A1
公开(公告)日：2019-06-27
申请号：US16231457
申请日：2018-12-22
Applicant: Maxlinear, Inc.
Inventor： Curtis Ling
Abstract: Systems and methods are provided for utilizing randomized array offsets in phased arrays. A phased array based system may include a plurality of antenna elements arranged in two-dimensional array, and a plurality of transceiver circuits, with each transceiver circuit configured for handling transmission and reception of radio frequency (RF) signals via the plurality of antenna elements. One or more transceiver circuits in the system may be configured for applying one or more randomized adjustments to one or more particular signal processing related functions applied during the transmission and reception of RF signals. The randomized adjustments may include randomized offsets to conversions applied during processing of transmitted and/or received signals. The conversion may include one or both of digital-to-analog conversions and analog-to-digital conversions. The offsets may be randomized based on indexes identifying corresponding antenna elements.
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公开(公告)号：US10324871B2
公开(公告)日：2019-06-18
申请号：US15878099
申请日：2018-01-23
Applicant: Maxlinear. Inc.
Inventor： Timothy Gallagher , Glenn DeLucio , Curtis Ling
IPC: G06F13/20 , G06F1/3234 , G06F13/16
Abstract: 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.
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公开(公告)号：US20190181563A1
公开(公告)日：2019-06-13
申请号：US16259177
申请日：2019-01-28
Applicant: Maxlinear, Inc.
Inventor： Timothy Gallagher , Curtis Ling
Abstract: An array based communications system may comprise a plurality of element processors. Each element processor may comprise a combining circuit, a crest factor circuit, and a phase shifter circuit. The combining circuit may produce a weighted sum of a plurality of digital datastreams. The crest factor circuit may be operable to determine whether the weighted sum has a power above or below a power threshold. If the power is above the power threshold, the crest factor circuit is operable to reduce the power. If the power is below the power threshold, the crest factor circuit is operable to increase the power. The phase shifter circuit may introduce a phase shift to out-of-band components of the weighted sum according to the power increase or the power decrease by the crest factor circuit.
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公开(公告)号：US10271118B2
公开(公告)日：2019-04-23
申请号：US15885871
申请日：2018-02-01
Applicant: Maxlinear, Inc
Inventor： Sridhar Ramesh , Curtis Ling
IPC: H04B10/27 , H04Q11/00 , H04B10/40 , H04B10/2575
Abstract: Circuitry of a hybrid fiber-coaxial network may comprise a first transceiver configured to connect the circuitry to an optical link, a second transceiver configured to connect the circuitry to an electrical link, a first processing path, a second processing path, and a switching circuit. In a first configuration, the switching circuit may couple the first transceiver to the second transceiver via the first processing path. In a second configuration, the switching circuit may couple the first transceiver to the second transceiver via the second processing path. The first transceiver may comprise a passive optical network (PON) transceiver and the second transceiver may comprise a data over coaxial service interface specification (DOCSIS) physical layer transceiver. The switching circuit may be configured based on the type of headend to which the circuitry is connected.
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公开(公告)号：US20190089593A1
公开(公告)日：2019-03-21
申请号：US16195053
申请日：2018-11-19
Applicant: Maxlinear, inc.
Inventor： Curtis Ling , Sridhar Ramesh , Timothy Gallagher
Abstract: A cable modem termination system (CMTS) may determine, for a cable modem served by the CMTS, a SNR-related metric. The CMTS may assign the modem among a plurality of service groups based on the SNR-related metric. The CMTS may configure physical layer communication parameters to be used by the modem based on a SNR-related metric of a service group to which the modem is assigned. The physical layer communication parameters may include one or more of: transmit power, receive sensitivity, timeslot duration, modulation type, modulation order, forward error correction (FEC) type, and FEC code rate. The CMTS and the modem may communicate using orthogonal frequency division multiplexing (OFDM) over a plurality of subcarriers, and the physical layer communication parameters may be determined on a per-subcarrier basis.
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Patent Agency Ranking
公开(公告)号：US20190014486A1
公开(公告)日：2019-01-10
申请号：US16130385
申请日：2018-09-13
Applicant: MaxLinear, Inc.
Inventor： Curtis Ling
IPC: H04W16/28 , H04L1/00 , H04B7/10 , H04B1/10 , H04W88/08 , H01Q3/40 , H04B1/40 , H01Q25/00 , H04W64/00
Abstract: A first microwave backhaul transceiver may comprise a plurality of antenna elements. The transceiver may determine atmospheric conditions between it and one or more potential link partners, and adjust a radiation pattern of the plurality of antenna elements based on the determined atmospheric conditions. A first radiation pattern of the plurality of antenna elements may correspond to a first microwave backhaul link between the first microwave transceiver and a second microwave backhaul transceiver. A second radiation pattern of the plurality of antenna elements may correspond to a second microwave backhaul link between the first microwave transceiver and a third microwave backhaul transceiver. The transceiver may adjust the radiation pattern based on characteristics of data to be transmitted, and based on a routing table it maintains.
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公开(公告)号：US10175352B2
公开(公告)日：2019-01-08
申请号：US15150669
申请日：2016-05-10
Applicant: Maxlinear, Inc.
Inventor： Curtis Ling
IPC: G01S13/93 , G01S13/87 , G01S7/40 , G01S13/02 , G01S13/42 , G01S7/00 , G01S13/89 , G01S13/86 , G01S13/60 , G01S13/00
Abstract: First transmitter circuitry communicates, via bus interface circuitry, on a data bus to detect whether any second transmitter circuitry is coupled to the data bus. In instances that no second transmitter circuitry is detected as being coupled to the data bus, the first transmitter circuitry transmits beamformed signals via a first plurality of antenna elements using beamforming coefficients. In instances that second transmitter circuitry is detected as being coupled to the data bus, the first transmitter circuitry determines a phase offset between clock generation circuitry of the first transmitter circuitry and clock generation circuitry of the detected second transmitter circuitry. The first transmitter circuitry compensates the beamforming coefficients based on the determined phase offset. The first transmitter circuitry use the compensated beamforming coefficients for transmitting signals that are phase coherent with signals transmitted by the second transmitter circuitry.
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公开(公告)号：US20180367837A1
公开(公告)日：2018-12-20
申请号：US16110593
申请日：2018-08-23
Applicant: Maxlinear, Inc.
Inventor： Anand Anandakumar , Sheng Ye , Curtis Ling
IPC: H04N21/426 , H04N21/438 , H04N21/61 , H04N5/50 , H04N21/462 , H04N5/44 , H04N21/443
CPC classification number: H04N21/4263 , H04N5/44 , H04N5/50 , H04N21/4383 , H04N21/4436 , H04N21/4622 , H04N21/6143
Abstract: Methods and systems for multi-path video and network channels may comprise a communication device comprising a wideband tuner (WB) and a narrowband tuner (NB). A video channel and a network channel may be received in the WB when the device is operating in a first stage. A video channel and a network channel may be received in the WB and the network channel may also be received in the NB when the device is operating in a second stage. The network channel may be received in the NB when the device is operating in a third stage. The reception of the network channel from both the WB and NB may enable a continuous reception of the network channel in a transition between the first and third stages. The WB may be operable to receive a plurality of channels and the NB may be operable to receive a single channel.
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公开(公告)号：US10148480B2
公开(公告)日：2018-12-04
申请号：US15789372
申请日：2017-10-20
Applicant: Maxlinear, Inc.
Inventor： Curtis Ling , Timothy Gallagher
Abstract: Methods and apparatus for processing multichannel signals in a multichannel receiver are described. In one implementation, a plurality of demodulators may provide a plurality of outputs to a processor, with the processor then simultaneously estimating noise characteristics based on the plurality of outputs and generating a common noise estimate based on the plurality of outputs. This common noise estimate may then be provided back to the demodulators and used to adjust the demodulation of signals in the plurality of demodulators to improve phase noise performance.
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公开(公告)号：US10141944B2
公开(公告)日：2018-11-27
申请号：US15651752
申请日：2017-07-17
Applicant: MaxLinear, Inc.
Inventor： Mansour Rachid , Timothy Gallagher , Curtis Ling
Abstract: Nonlinearity correction in a device that performs analog-to-digital conversion on received analog signals, may be calibrated by generating correction-parameters estimation which when applied to the total spectral content reduces distortion resulting from said nonlinearity in originally-unoccupied spectral regions. Digital signals generated based on sampling of the received analog signals may then be corrected, to remove nonlinearity related distortion, based on the estimated correction-parameters. The nonlinearity calibration may be performed during reception and handling of said analog signals. The correction-parameters may be generated based on signals located in particular spectral regions, such as the originally-unoccupied spectral regions. These signals may be injected within the device, into the particular spectral regions, and the signal may have known characteristics to enable estimating the required correction.
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