公开(公告)号：US10681412B2

公开(公告)日：2020-06-09

申请号：US13857778

申请日：2013-04-05

Applicant: MaxLinear, Inc.

Inventor： Raja Pullela ,  Glenn Chang

IPC: H04N21/442 ,  H04N21/438 ,  H04H40/90 ,  H04N7/10 ,  H04N21/643 ,  H04N7/20 ,  H04N21/61 ,  H04N21/436

Abstract: An electronic device may be operable to sample a signal during an analog-to-digital conversion using an analog-to-digital converter in the electronic device, and the signal may comprise a wide bandwidth and a plurality of channels. The electronic device may adaptively change a sample rate of the sampling to move aliasing out of a region of one or more desired channels of the plurality of channels. The electronic device may change the sample rate using a variable oscillator in the electronic device. The change of the sample rate may comprise, for example, increasing or decreasing the sample rate by a particular percentage. In response to the change of the sample rate, the electronic device may perform, using a variable rate interpolator in the electronic device, variable rate interpolation. The variable rate interpolator may comprise, for example, a finite impulse response filter.

公开(公告)号：US10326414B2

公开(公告)日：2019-06-18

申请号：US15700732

申请日：2017-09-11

Applicant: MaxLinear, Inc.

Inventor： Rahul Bhatia ,  Timothy Gallagher ,  Raja Pullela ,  Sridhar Ramesh

IPC: H03F3/21 ,  H03F3/45 ,  H03F1/02

Abstract: 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.

公开(公告)号：US10277955B1

公开(公告)日：2019-04-30

申请号：US14881654

申请日：2015-10-13

Applicant: MaxLinear, Inc.

Inventor： Raja Pullela ,  Glenn Chang ,  Curtis Ling

IPC: H04N21/61 ,  H04H40/90 ,  H04N17/04 ,  H04N21/436

Abstract: A signal receiver chip may be configured to receive a satellite signal, and when the satellite signal is partially-processed off-chip, to bypass at least a portion of processing functions applied in the signal receiver chip during processing of satellite signals. The bypassed processing functions may comprise or correspond to signal band conversions. The satellite signal chip may generate an output signal, corresponding to the satellite signal, with the output signal being configured for communication to a peer device (e.g., satellite STB). The output signal may be generated and/or configured such that to enable distributing content carried in the output signal to a plurality of client devices in a local network serviced by the peer device. The signal receiver chip may combine a plurality of portions, corresponding to a plurality of satellite signals, into the output signal.

公开(公告)号：US10256898B2

公开(公告)日：2019-04-09

申请号：US15692459

申请日：2017-08-31

Applicant: MaxLinear, Inc.

Inventor： Raja Pullela ,  Glenn Chang ,  Sridhar Ramesh

IPC: H04B7/185 ,  H04L7/033 ,  H04L7/00

Abstract: Methods and systems are provided for guard band detection and frequency offset detection. For each of a plurality of downconverted signals, frequency related information associated with one or more corresponding circuits used in obtaining the plurality of downconverted signals may be determined; and based on the determined frequency related information, one or both of a band stacking operation and a channel stacking operation may be performed. During the band stacking operation, frequency bands are not stacked on each other or stacked frequency bands do not overlap. During the channel stacking operation, channels are not stacked on each other or stacked channels do not overlap. The frequency related information may be determined based on predefined frequency related parameters associated with the corresponding circuits. Frequency corrections may be performed, on output signals corresponding to the band stacking operation and/or the channel stacking operation, based on the frequency related information.

公开(公告)号：US10230424B2

公开(公告)日：2019-03-12

申请号：US14492143

申请日：2014-09-22

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Kishore Seendripu ,  Raja Pullela ,  Madhukar Reddy ,  Timothy Gallagher

IPC: H04B1/40 ,  H04B1/74 ,  H04L25/02 ,  H04L27/20 ,  H04L27/22 ,  H04H60/19 ,  H04B1/00 ,  H04L27/36 ,  H04L27/38

Abstract: A monolithic integrated circuit for use in a microwave backhaul system may comprise a plurality of microwave transceivers and outdoor-unit to indoor-unit (ODU/IDU) interface circuitry. The monolithic integrated circuit may be configurable into an all-outdoor configuration in which the ODU/IDU interface circuitry is disabled. The monolithic integrated circuit may be configurable into a split-indoor-and-outdoor configuration in which the ODU/IDU interface circuitry is enabled to communicate signals between an outdoor unit of the microwave backhaul system and an indoor unit of the microwave backhaul system. While the monolithic integrated circuit is configured in the split-indoor-and-outdoor configuration, the ODU/IDU interface circuitry may be configurable to operate in at least a non-stacking mode and a stacking mode.

公开(公告)号：US20190068227A1

公开(公告)日：2019-02-28

申请号：US16171463

申请日：2018-10-26

Applicant: Maxlinear, Inc.

Inventor： Subramanian Anantharaman Chandrasekarapuram ,  Anand Anandakumar ,  Stephane Laurent-Michel ,  Sheng Ye ,  Raja Pullela ,  Glenn Chang ,  Vamsi Paidi

IPC: H04B1/10

Abstract: A system comprises a microwave backhaul outdoor unit having a first resonant circuit, phase error determination circuitry, and phase error compensation circuitry. The first resonant circuit is operable to generate a first signal characterized by a first amount of phase noise and a first amount of temperature stability. The phase error determination circuitry is operable to generate a phase error signal indicative of phase error between the first signal and a second signal, wherein the second signal is characterized by a second amount of phase noise that is greater than the first amount of phase noise, and the second signal is characterized by a second amount of temperature instability that is less than the first amount of temperature instability. The phase error compensation circuitry is operable to adjust the phase of a data signal based on the phase error signal, the adjustment resulting in a phase compensated signal.

公开(公告)号：US20180183492A1

公开(公告)日：2018-06-28

申请号：US15904680

申请日：2018-02-26

Applicant: MaxLinear, Inc.

Inventor： Kishore Seendripu ,  Raja Pullela ,  Madhukar Reddy ,  Timothy Gallagher

IPC: H04B1/74 ,  H04L27/36 ,  H04L27/20 ,  H04L27/38 ,  H04H60/19 ,  H04L25/02 ,  H04B1/40 ,  H04L27/22 ,  H04B1/00

CPC classification number: H04B1/745 ,  H04B1/0067 ,  H04B1/40 ,  H04H60/19 ,  H04L25/02 ,  H04L27/20 ,  H04L27/2003 ,  H04L27/22 ,  H04L27/36 ,  H04L27/362 ,  H04L27/38

Abstract: A microwave backhaul system may comprise a monolithic integrated circuit comprising an on-chip transceiver, digital baseband processing circuitry, and auxiliary interface circuitry. The on-chip transceiver may process a microwave signal from an antenna element to generate a first pair of quadrature baseband signals and convey the first pair of phase-quadrature baseband signals to the digital baseband processing circuitry. The auxiliary interface circuitry may receive one or more auxiliary signals from a source that is external to the monolithic integrated circuit and convey the one or more auxiliary signals to the digital baseband processing circuitry. The digital baseband processing circuitry may be operable to process signals to generate one or more second pairs of phase-quadrature digital baseband signals.

公开(公告)号：US20180102784A1

公开(公告)日：2018-04-12

申请号：US15707245

申请日：2017-09-18

Applicant: MaxLinear, Inc.

Inventor： Raja Pullela ,  Curtis Ling

IPC: H03M1/50 ,  H03M1/18 ,  H03M1/12

CPC classification number: H03M1/50 ,  H03M1/12 ,  H03M1/1215 ,  H03M1/185 ,  H04B17/21 ,  H04B17/24

Abstract: Methods and systems are provided for gain control during communications. A first electronic device may communicated data to a second electronic device; may monitor conditions and/or parameters affecting estimated reception performance at the second electronic device; and may communicated to the second electronic device, via a connection separate from and different than a connection used in communicating the data, information relating to the monitored conditions, to enable adjusting functions relating to reception of the data at the second electronic device. Based on the received information, at least one reception related function in the second electronic device may be controlled. The controlling may include determining, based on the received information, adjustments to the at least one reception related function or to a related parameter. The at least one reception related function may include applying gain to at least a portion of signals received by the second electronic device.

公开(公告)号：US09941986B2

公开(公告)日：2018-04-10

申请号：US15297595

申请日：2016-10-19

Applicant: MaxLinear, Inc.

Inventor： Glenn Chang ,  Raja Pullela ,  Madhukar Reddy ,  Timothy Gallagher ,  Shanta Murthy Prem Swaroop ,  Curtis Ling ,  Vamsi Paidi ,  Wenjian Chen

IPC: H04H40/90 ,  H04N21/61

CPC classification number: H04H40/90 ,  H04N21/6143

Abstract: A direct broadcast satellite (DBS) reception assembly may comprise an integrated circuit that is configurable between or among a plurality of configurations based on content requested by client devices served by the DBS reception assembly. In a first configuration, multiple satellite frequency bands may be digitized by the integrated circuit as a single wideband signal. In a second configuration, the satellite frequency bands may be digitized by the integrated circuit as a plurality of separate narrowband signals. The integrated circuit may comprise a plurality of receive paths, each of the receive chains comprising a respective one of a plurality of low noise amplifiers and a plurality of analog-to-digital converters.

公开(公告)号：US20180069512A1

公开(公告)日：2018-03-08

申请号：US15700732

申请日：2017-09-11

Applicant: MaxLinear, Inc.

Inventor： Rahul Bhatia ,  Timothy Gallagher ,  Raja Pullela ,  Sridhar Ramesh

IPC: H03F3/21 ,  H03F3/45 ,  H03F1/02

CPC classification number: H03F3/21 ,  H03F1/0266 ,  H03F3/4508 ,  H03F2200/09 ,  H03F2200/66 ,  H03F2203/45731

Abstract: Systems and methods are provided for dynamically biasing power amplifiers. In particular, dynamic biasing of a power amplifier may be controlled, with the controlling comprising receiving an input signal that is to be amplified; processing the input signal; generating based on said processing of the input signal input signal, a plurality of control signals comprising at least one biasing control signal; and applying the plurality of control signals to one or more control elements that are used in driving and/or control of the power amplifier. The one or more control elements may comprise at least one biasing component that adjusts biasing applied to power amplifier.