公开(公告)号：US20150365100A1

公开(公告)日：2015-12-17

申请号：US14811139

申请日：2015-07-28

Applicant: MaxLinear, Inc.

Inventor： Raja Pullela ,  Curtis Ling

IPC: H03M1/46 ,  H03M1/04 ,  H03M1/44 ,  H03M1/00

CPC classification number: H03M1/38 ,  H03M1/002 ,  H03M1/04 ,  H03M1/44 ,  H03M1/46 ,  H03M1/462

Abstract: Aspects of a method and system for a successive approximation analog-to-digital converter with dynamic search algorithms are provided. In some embodiments, a successive approximation analog-to-digital converter includes a digital-to-analog converter, a comparator, and a search and decode logic modules which cooperate to generate a digital output code representative of the analog input voltage based on a dynamic search algorithm. The dynamic search algorithms may alter a sequence of reference voltages used to successively approximate the analog input voltage based on one or more characteristics of the analog input voltage.

Abstract translation: 提供了具有动态搜索算法的逐次逼近模数转换器的方法和系统的方面。 在一些实施例中，逐次逼近模数转换器包括数模转换器，比较器和搜索和解码逻辑模块，其协作以基于动态的方式生成代表模拟输入电压的数字输出代码 搜索算法。 动态搜索算法可以基于模拟输入电压的一个或多个特性改变用于连续逼近模拟输入电压的参考电压序列。

公开(公告)号：US09203535B2

公开(公告)日：2015-12-01

申请号：US13783130

申请日：2013-03-01

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

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.

Abstract translation: 直接广播卫星（DBS）接收组件可以包括可以基于由DBS接收组件服务的客户端设备请求的内容在多个配置之间或之间配置的集成电路。 在第一配置中，多个卫星频带可以被集成电路数字化为单个宽带信号。 在第二配置中，卫星频带可以由集成电路数字化为多个单独的窄带信号。 集成电路可以包括多个接收路径，每个接收链包括多个低噪声放大器和多个模数转换器中的相应一个。

公开(公告)号：US09191183B2

公开(公告)日：2015-11-17

申请号：US14470720

申请日：2014-08-27

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Timothy Gallagher

IPC: H04L25/40 ,  H04L7/00 ,  H04L7/033 ,  H04B7/06

CPC classification number: H04L7/0016 ,  H04B7/061 ,  H04L5/0098 ,  H04L7/033 ,  H04L25/0206 ,  H04L25/03057 ,  H04L27/2601 ,  H04L27/2657 ,  H04L27/2679

Abstract: Methods and systems are provided for using decision feedback phase error correction during signal processing. When an input signal comprises a plurality of sub-carriers, each of the plurality of sub-carriers may be processed separately, wherein the processing may comprise determining for each one of the plurality sub-carriers error related information; and the determined error related information may be applied as separate feedback, such as to allow separately adjusting subsequent processing of the corresponding one of the plurality of sub-carriers. The error related information may comprise phase error related information. At least part of the error related information based on data carried by the corresponding one of the plurality of sub-carriers. The plurality of sub-carriers comprises orthogonal frequency-division multiplexing (OFDM) based sub-carriers. Error related information obtained from processing of at least some of the plurality of sub-carriers may be shared.

Abstract translation: 提供了在信号处理期间使用判定反馈相位误差校正的方法和系统。 当输入信号包括多个子载波时，可以分开处理多个子载波中的每一个，其中该处理可以包括确定多个子载波中的每一个与错误相关的信息; 并且所确定的错误相关信息可以被应用为单独的反馈，诸如允许单独调整多个子载波中的相应一个子载波的后续处理。 错误相关信息可以包括相位误差相关信息。 基于由所述多个子载波中的相应一个子载波承载的数据的所述错误相关信息的至少一部分。 多个子载波包括基于正交频分复用（OFDM）的子载波。 可以共享从处理多个子载体中的至少一些子载波获得的错误相关信息。

公开(公告)号：US20150326916A1

公开(公告)日：2015-11-12

申请号：US14719393

申请日：2015-05-22

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling

IPC: H04N21/436 ,  H04N21/442 ,  H04N21/462 ,  H04N21/61 ,  H04N21/426

CPC classification number: H04N21/43615 ,  H03M1/1205 ,  H04B1/16 ,  H04H40/90 ,  H04H60/82 ,  H04N7/20 ,  H04N21/4143 ,  H04N21/42607 ,  H04N21/44227 ,  H04N21/462 ,  H04N21/6143 ,  Y02D70/00 ,  Y02D70/168 ,  Y02D70/21

Abstract: One or more circuits may comprise at least one first-type analog-to-digital converter (ADC) and at least one second-type ADC. The circuit(s) may be operable to receive a plurality of signals, each of which may comprise a plurality of channels. The circuit(s) may be operable to digitize a selected one or more of the channels. Which, if any, of the selected channels are digitized via the at least one first-type ADC and which, if any, of the selected channels are digitized via the at least one second-type ADC, may be based on which of the plurality of channels are the selected channels and/or based on power consumption of the circuit(s). A bandwidth of each first-type ADC may be on the order of the bandwidth of one of the received signals. A bandwidth of each second-type ADC may be on the order of the bandwidth of one of the plurality of channels.

Abstract translation: 一个或多个电路可以包括至少一个第一类型模数转换器（ADC）和至少一个第二类型ADC。 电路可以可操作以接收多个信号，每个信号可以包括多个信道。 电路可以可操作以对选定的一个或多个通道进行数字化。 所选择的通道中的哪一个（如果有的话）经由至少一个第一型ADC被数字化，并且如果有的话，所选择的通道中的任何一个通过至少一个第二类型的ADC被数字化，可以基于多个 的通道是所选择的通道和/或基于电路的功耗。 每个第一类型ADC的带宽可以在接收信号之一的带宽的数量级上。 每个第二类型ADC的带宽可以在多个信道之一的带宽的数量级上。

公开(公告)号：US20150319623A1

公开(公告)日：2015-11-05

申请号：US14702915

申请日：2015-05-04

Applicant: MAXLINEAR, INC.

Inventor： Curtis Ling

IPC: H04W16/18 ,  H04W24/04

CPC classification number: H04W16/18 ,  H04W24/04 ,  H04W24/08 ,  H04W72/044

Abstract: A satellite reception assembly may receive signals on a block of frequencies that encompasses channels of one or more wireless networks. The satellite reception assembly may convey information about signals received on the block of frequencies to a centralized location which may utilize the information to determine characteristics, such as coverage area and/or usage, of the wireless network(s). Additionally or alternatively, such information from a plurality of satellite reception assemblies may be aggregated and made available to third parties which may use the aggregate information, in combination with knowledge about the wireless network(s), to determine characteristics of the wireless network(s).

Abstract translation: 卫星接收组件可以在包含一个或多个无线网络的信道的频率块上接收信号。 卫星接收组件可以将关于在频率块上接收的信号的信息传送到可以利用该信息来确定无线网络的特征（例如覆盖区域和/或使用）的集中位置的信息。 附加地或替代地，来自多个卫星接收组件的这种信息可以被聚合并且可用于可以使用聚合信息的第三方，结合关于无线网络的知识来确定无线网络的特性 ）。

公开(公告)号：US09178765B2

公开(公告)日：2015-11-03

申请号：US13948401

申请日：2013-07-23

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling ,  Sridhar Ramesh ,  Timothy Gallagher

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/28 ,  H04L1/00 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L12/2801 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/001 ,  H04L5/0046 ,  H04L5/006 ,  H04L12/2898 ,  H04L27/2646 ,  H04L41/083

Abstract: A cable modem termination system (CMTS) may communicate with a plurality of cable modems using a plurality of orthogonal frequency division multiplexed (OFDM) subcarriers. The CMTS may determine a performance metric of each of the cable modems. For each of the OFDM subcarriers and each of the cable modems, the CMTS may select physical layer parameters to be used for communication with that cable modem on that OFDM subcarrier based on a performance metric of that cable modem. The parameters may be selected for each individual modem and/or each individual subcarrier, or may be selected for groups of modems and/or groups of subcarriers. The parameters may include, for example, one or more of: transmit power, receive sensitivity, timeslot duration, modulation type, modulation order, forward error correction (FEC) type, and FEC code rate.

Abstract translation: 电缆调制解调器终端系统（CMTS）可以使用多个正交频分复用（OFDM）子载波与多个电缆调制解调器进行通信。 CMTS可以确定每个有线调制解调器的性能度量。 对于每个OFDM子载波和每个电缆调制解调器，CMTS可以基于该电缆调制解调器的性能度量来选择要用于与该OFDM子载波上的该电缆调制解调器通信的物理层参数。 可以为每个单独的调制解调器和/或每个单独的子载波选择参数，或者可以针对调制解调器和/或子载波组的组选择参数。 参数可以包括例如以下中的一个或多个：发射功率，接收灵敏度，时隙持续时间，调制类型，调制阶数，前向纠错（FEC）类型和FEC码率。

公开(公告)号：US09178526B2

公开(公告)日：2015-11-03

申请号：US14623743

申请日：2015-02-17

Applicant: MaxLinear, Inc.

Inventor： Curtis Ling

IPC: H03M1/66 ,  H03M1/18 ,  H03M1/00 ,  H03M1/36 ,  H03M1/70 ,  H03M1/74

CPC classification number: H03M1/002 ,  H03M1/12 ,  H03M1/188 ,  H03M1/36 ,  H03M1/66 ,  H03M1/70 ,  H03M1/74 ,  H04B1/40

Abstract: Aspects of a method and system for data converters having a transfer function with multiple operating zones. In some embodiments, an operating zone of the multiple operating zones is characterized by more stringent performance criteria than the other operating zones. Thus, such data converters may receive an input signal and generate an output signal from the input signal per the transfer function and the more stringent performance criteria in the appropriate operating zone.

公开(公告)号：US20150288375A1

公开(公告)日：2015-10-08

申请号：US14746314

申请日：2015-06-22

Applicant: MaxLinear, Inc.

Inventor： Mansour Rachid ,  Timothy Gallagher ,  Curtis Ling

IPC: H03M1/10 ,  H03M1/12

CPC classification number: H03M1/1038 ,  H03M1/12

Abstract: Methods and systems are provided for generating correction estimates. Training signals may be injected into one or more particular spectral regions, and one or more correction estimation parameters may be determined based on the injecting of the training signals, where the one or more correction estimation parameters reduce distortion in at least the one or more particular spectral regions. The particular spectral regions may comprise originally-unoccupied spectral regions. The one or more correction estimation parameters may be applied during correcting of digital signals generated based on processing of received analog signals. The training signals may be generated, such as based on one or more pre-defined characteristics. The one or more correction estimation parameters may then be determined based on the one or more pre-defined characteristics of the training signals and/or changes thereto.

Abstract translation: 提供了用于产生校正估计的方法和系统。 训练信号可以被注入到一个或多个特定光谱区域中，并且可以基于训练信号的注入来确定一个或多个校正估计参数，其中一个或多个校正估计参数在至少一个或多个特定的区域中减少失真 光谱区域。 特定光谱区域可以包括原始未被占用的光谱区域。 可以在基于接收到的模拟信号的处理生成的数字信号的校正期间应用一个或多个校正估计参数。 可以生成训练信号，例如基于一个或多个预定义的特征。 然后可以基于训练信号的一个或多个预定义特性和/或其改变来确定一个或多个校正估计参数。

公开(公告)号：US09124338B2

公开(公告)日：2015-09-01

申请号：US13908641

申请日：2013-06-03

Applicant: MAXLINEAR, INC.

Inventor： Curtis Ling ,  Andy Lo ,  Tete Sedalo

IPC: H04B1/06 ,  H04B7/00 ,  H04B1/10 ,  H04B1/16 ,  H04B1/40

CPC classification number: H04B1/16 ,  H04B1/40

Abstract: A wireless communication receiver includes a multitude of look-up tables each storing a multitude of DC offset values associated with the gains of an amplification stage disposed in the wireless communication receiver. The entries for each look-up table are estimated during a stage of the calibration phase. During such a calibration stage, for each selected gain of an amplification stage, a search logic estimates a current DC offset number and compares it to a previous DC offset estimate that is fed back to the search logic. If the difference between the current and previous estimates is less than a predefined threshold value, the current estimate is treated as being associated with the DC offset of the selected gain of the amplification stage and is stored in the look-up table. This process is repeated for each selected gain of each amplification stage of interest until the look-up tables are populated.

Abstract translation: 无线通信接收机包括多个查找表，每个查找表存储与设置在无线通信接收机中的放大级的增益相关联的多个DC偏移值。 在校准阶段的阶段估计每个查找表的条目。 在这样的校准阶段期间，对于放大级的每个所选增益，搜索逻辑估计当前DC偏移数，并将其与反馈到搜索逻辑的先前DC偏移估计进行比较。 如果当前和先前估计之间的差值小于预定义的阈值，则将当前估计值视为与放大级的所选增益的DC偏移相关联，并存储在查找表中。 对于感兴趣的每个扩增阶段的每个选定的增益重复该过程，直到查找表被填充。

公开(公告)号：US09094036B2

公开(公告)日：2015-07-28

申请号：US14087710

申请日：2013-11-22

Applicant: MaxLinear, Inc.

Inventor： Mansour Rachid ,  Timothy Gallagher ,  Curtis Ling

IPC: H03M1/06 ,  H03M1/10 ,  H03M1/12

CPC classification number: H03M1/1038 ,  H03M1/12

Abstract: Methods and systems are provided for calibrating nonlinearity correction during analog-to-digital conversions on received analog signals. Correction-parameters may be estimated, such as to reduce, when applied to total spectral content, distortion resulting from the 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 correction calibration may be performed during reception and handling of the 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.

Abstract translation: 提供的方法和系统用于在接收到的模拟信号的模数转换期间校准非线性校正。 可以估计校正参数，例如当应用于总光谱内容时，减少由原始未占用的光谱区域中的非线性引起的失真。 然后可以基于所估计的校正参数来校正基于接收到的模拟信号的采样产生的数字信号以去除非线性相关的失真。 可以在模拟信号的接收和处理期间执行非线性校正校准。 校正参数可以基于位于特定光谱区域（例如原始未被占用的光谱区域）的信号产生。 这些信号可以在设备内注入到特定的光谱区域中，并且该信号可以具有已知的特性以使得能够估计所需的校正。