公开(公告)号：US20180157607A1

公开(公告)日：2018-06-07

申请号：US15878099

申请日：2018-01-23

Applicant: Maxlinear, Inc.

Inventor： Timothy Gallagher ,  Glenn DeLucio ,  Curtis Ling

IPC: G06F13/20 ,  G06F13/16 ,  G06F1/32

CPC classification number: G06F13/20 ,  G06F1/3234 ,  G06F1/3278 ,  G06F13/1673 ,  Y02B70/12 ,  Y02D10/157

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.

公开(公告)号：US09912466B2

公开(公告)日：2018-03-06

申请号：US15244674

申请日：2016-08-23

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher

IPC: G06F1/32 ,  H04L7/00 ,  H04W52/02 ,  H04L12/28

CPC classification number: H04L7/0033 ,  G06F1/3209 ,  G06F1/3234 ,  G06F1/3278 ,  H04L12/2801 ,  H04W52/02 ,  Y02D10/157 ,  Y02D50/20 ,  Y02D70/00 ,  Y02D70/168

Abstract: A network device may be operable to receive an indication from a cable modem termination system (CMTS) that media access control (MAC) management messages will be transmitted by the CMTS at fixed intervals. Subsequent to receiving the indication, the network device may be operable to power down one or more components of the network device and set a sleep timer to a value equal to an integer multiple of the fixed interval minus a transition period. The network device may power up the one or more components of the network device upon expiration of the sleep timer. The network device may power up the one or more components of the network device upon an amount of traffic in a buffer of the network device reaching a threshold.

公开(公告)号：US09881653B2

公开(公告)日：2018-01-30

申请号：US15434715

申请日：2017-02-16

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Vadim Smolyakov ,  Timothy Gallagher ,  Glenn Gulak

IPC: G11C5/14 ,  G11C29/02 ,  G11C29/04

CPC classification number: G11C5/144 ,  G06F11/1048 ,  G11C5/14 ,  G11C29/021 ,  G11C29/028 ,  G11C2029/0409

Abstract: A method and apparatus for memory power and/or area reduction. An array of memory cells may be scanned to detect faulty memory cells, if any, in the array. A supply voltage Vmem applied to the array of memory cells may be controlled based on a result of the scan, and based on a sensitivity coefficient of one, or more, of the array of memory cells. The sensitivity coefficient may indicate an impact that the one, or more, of the array of memory cells being faulty may have on the performance of a device that reads and writes data to the memory array. Additionally or alternatively, the physical dimensions of the memory cells may be determined based on the sensitivity coefficient(s) and/or based on a number of faulty memory cells that can be tolerated in the array of memory cells.

公开(公告)号：US20170373912A1

公开(公告)日：2017-12-28

申请号：US15682446

申请日：2017-08-21

Applicant: Maxlinear, Inc.

Inventor： Yongtao Wang ,  Curtis Ling ,  Timothy Gallagher

IPC: H04L27/38 ,  H04L27/233 ,  H04L27/36

CPC classification number: H04L27/3863 ,  H04L27/2334 ,  H04L27/2338 ,  H04L27/2636 ,  H04L27/361 ,  H04L27/366

Abstract: Methods and systems for I/Q mismatch calibration and compensation for wideband communication receivers may comprise receiving a plurality of radio frequency (RF) channels, downconverting the received plurality of received RF channels to baseband frequencies, determining and removing average in-phase (I) and quadrature (Q) gain and phase mismatch of the downconverted channels, determining a phase and amplitude tilt of the downconverted channels with removed average I and Q gain and phase mismatch, and compensating for said phase and amplitude tilt I and Q gain and phase mismatch of the downconverted channels. The determined phase tilt may be compensated utilizing a phase tilt correction filter, which may comprise one or more all-pass filters. The average I and Q gain and phase mismatch may be determined utilizing a blind source separation (BSS) estimation algorithm.

公开(公告)号：US20170359678A1

公开(公告)日：2017-12-14

申请号：US15633146

申请日：2017-06-26

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher

IPC: H04W4/00 ,  G06F3/0481 ,  H04W52/28 ,  H04W76/02 ,  H04B17/318 ,  G01S11/06 ,  H04W12/08 ,  H04W72/04 ,  H04B5/00 ,  H04B17/309 ,  H04W84/18

CPC classification number: H04W4/80 ,  G01S11/06 ,  G06F3/0481 ,  H04B5/00 ,  H04B5/0037 ,  H04B7/18517 ,  H04B17/309 ,  H04B17/318 ,  H04W12/08 ,  H04W52/283 ,  H04W72/0453 ,  H04W76/10 ,  H04W84/18

Abstract: A wireless communication device generates and transmits wireless broadband signals at a power level that is below a spurious emissions mask such that the transmitted wireless broadband signals occupy a designated frequency spectrum band. A bandwidth of the wireless broadband signals may occupy approximately 800 MHz within a range of 0 Hz to 1 GHz. The transmit power utilized for transmitting the wireless broadband signals may be spread over a bandwidth of approximately 300 MHz within the 800 MHz bandwidth. The spreading results in a power spectral density of the transmitted wireless broadband signals approximating thermal noise at a distance of approximately 3 meters. Available channels within the designated frequency spectrum band may be sensed for the transmission of the wireless broadband signals. A plurality of the sensed available channels may be aggregated for the transmission of the wireless broadband signals.

公开(公告)号：US09768987B2

公开(公告)日：2017-09-19

申请号：US14595896

申请日：2015-01-13

Applicant: MaxLinear, Inc.

Inventor： Sridhar Ramesh ,  Timothy Gallagher ,  Ali Shahed hagh ghadam

IPC: H04L25/03 ,  H03F1/32 ,  H04L27/36 ,  H04B15/00

CPC classification number: H04L25/03343 ,  H03F1/3211 ,  H03F1/3241 ,  H04B15/00 ,  H04L27/367

Abstract: Systems and methods are provided for dynamic calibration of pre-distortion modification in transmitters. The pre-distortion modification may be applied during processing of an input signal for transmission, and feedback data, relating to the transmitter and/or processing performed after application of the pre-distortion modification in the transmitter, may be obtained. Adjustments to the pre-distortion modification may be determined based on the feedback data, and the adjustments to the pre-distortion modification may be applied in loop-back manner, thus enabling adjustment of pre-distortion modification dynamically based on real-time and current data. The pre-distortion modification may comprise modifying one or more signal characteristics, such as phase, frequency, and/or amplitude. Determining and/or applying the adjustments to the pre-distortion modification may be done periodically, based on one or more particular events, or conditionally.

公开(公告)号：US09705541B2

公开(公告)日：2017-07-11

申请号：US15140599

申请日：2016-04-28

Applicant: Maxlinear, Inc.

Inventor： Ramesh Sridhar ,  Timothy Gallagher ,  Shantha Murthy Prem Swaroop ,  Ali Shahed Hagh Gadam

IPC: H04L25/03 ,  H04B1/04 ,  H03G3/30 ,  H03F1/32 ,  H03F3/195 ,  H03F3/24 ,  H03F3/213

CPC classification number: H04B1/0475 ,  H03F1/02 ,  H03F1/3241 ,  H03F1/3247 ,  H03F3/195 ,  H03F3/213 ,  H03F3/24 ,  H03F2200/451 ,  H03F2201/3215 ,  H03G3/3042 ,  H04B2001/0425 ,  H04B2001/045

Abstract: Methods and systems for crest factor reduction may comprise generating an original waveform to be amplified by a programmable gain amplifier (PGA); generating a distortion signal utilizing a PGA model that predicts an output signal of the PGA based on the original waveform; generating an error signal by subtracting out the original waveform from the distortion signal; filtering the generated error signal; generating a conditioned waveform with crest factor reduced from that of the original waveform by adding the filtered error signal to the original waveform; and amplifying the conditioned waveform. The crest factor of the original waveform may be reduced based on spectral mask requirements. The generating of the conditioned waveform may be iterated. The distortion signal may be generated based on a predistortion model. A signal may be fed back from an output of the PGA to the predistortion model, which may be dynamically configured.

公开(公告)号：US20170163486A1

公开(公告)日：2017-06-08

申请号：US15434673

申请日：2017-02-16

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Sridhar Ramesh ,  Timothy Gallagher

IPC: H04L12/24 ,  H04L12/26 ,  H04L12/28 ,  H04L1/00 ,  H04L27/26

CPC classification number: H04L41/0823 ,  H04B17/318 ,  H04L1/0009 ,  H04L1/0026 ,  H04L12/2801 ,  H04L27/2601 ,  H04L27/2602 ,  H04L43/08 ,  H04L43/12

Abstract: A cable modem termination system (CMTS) may determine, for a plurality of cable modems served by the CMTS, a corresponding plurality of SNR-related metrics. The CMTS may assigning the modems among a plurality of service groups based on the SNR-related metrics. For any one of the modems, the CMTS may configure physical layer communication parameters to be used by the one of the modems based on a SNR-related metric of a service group to which the one of the modems 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 modems 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.

公开(公告)号：US20170149144A1

公开(公告)日：2017-05-25

申请号：US15355220

申请日：2016-11-18

Applicant: Maxlinear, Inc.

Inventor： Timothy Gallagher ,  Curtis Ling

IPC: H01Q21/24 ,  H01Q1/00 ,  H01Q1/24

CPC classification number: H01Q21/245 ,  H01Q1/38 ,  H01Q3/247 ,  H01Q3/40 ,  H01Q13/0258 ,  H01Q21/064

Abstract: Methods and systems for efficient multi-polarization communications are presented. An array based communications system may comprises an antenna array operably connected to a first polarization path and a second polarization path. Each polarization path may comprise an analog frequency conversion circuit, a digital beamforming circuit, and a cross-polarization interference suppression circuit. To save power while communicating with one or more link partners, one or both of the first polarization path and the second polarization path may be selectively enabled or disabled in accordance with temperature, bandwidth, and/or power consumption requirements.

公开(公告)号：US20170111758A1

公开(公告)日：2017-04-20

申请号：US15391105

申请日：2016-12-27

Applicant: Maxlinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher

IPC: H04W4/00 ,  H04W12/08 ,  H04B5/00 ,  G06F3/0481 ,  H04W72/04 ,  H04W52/28 ,  G01S11/06 ,  H04B17/318 ,  H04W76/02

CPC classification number: H04W4/80 ,  G01S11/06 ,  G06F3/0481 ,  H04B5/00 ,  H04B5/0037 ,  H04B7/18517 ,  H04B17/309 ,  H04B17/318 ,  H04W12/08 ,  H04W52/283 ,  H04W72/0453 ,  H04W76/10 ,  H04W84/18

Abstract: A wireless communication device (WCD) establishes an ad-hoc communication link with a second WCD within operating range. A replica of at least a portion of a display of the first WCD may be shared with the second WCD utilizing wireless broadband signals that are communicated via the established one or more ad-hoc communication links. The first WCD and the second WCD are operable to communicate the wireless broadband signals at a power level that is below a spurious emissions mask. The transmitted wireless broadband signals are spread so they occupy a designated frequency spectrum band. The shared replica of at least a portion of the display of the first WCD includes one or more applications, text, video and/or data content. A user of the first WCD may interact with content that is displayed on a display of the second WCD and vice-versa.