公开(公告)号：US09148160B2

公开(公告)日：2015-09-29

申请号：US14455361

申请日：2014-08-08

申请人： MaxLinear, Inc.

发明人： Jianyu Zhu

IPC分类号： H03M1/66 ,  H03M1/08 ,  H03M1/00 ,  H04B15/02

CPC分类号： H03M1/0863 ,  H03M1/002 ,  H03M1/66 ,  H03M1/664 ,  H03M1/742 ,  H04B15/02

摘要： 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.

摘要翻译： 为电流转向数模转换器（DAC）中的动态功率开关提供了方法和系统。 DAC电路可以被配置为基于当前转向来应用数模转换，并且特别地包括在转换期间使用动态功率切换。 DAC电路可以包括主部分，其可以将主电源电压连接到主电流源。 主部分可以包括正侧分支和负侧分支，其可以被配置为例如以差分方式转向正侧和负侧电流以实现转换。 动态功率切换可以例如通过将DAC电路中的主电流源连接到次级电源的次级部分来施加。 次级电源电压可以被配置为使得其可以小于用于驱动DAC电路中的电流转向的主电源电压。

公开(公告)号：US09124339B2

公开(公告)日：2015-09-01

申请号：US14245589

申请日：2014-04-04

申请人： MaxLinear, Inc.

发明人： Glenn Chang ,  Sridhar Ramesh ,  Curtis Ling

IPC分类号： H04L27/04 ,  H03K9/00 ,  H04B1/16 ,  G06F7/00 ,  H01L25/00

CPC分类号： H04N21/2187 ,  G06F7/00 ,  H01L25/00 ,  H01L2924/0002 ,  H01Q13/206 ,  H01Q21/0012 ,  H04B1/10 ,  H04B1/16 ,  H04B1/18 ,  H04L12/2838 ,  H04L2012/2849 ,  H04N21/2221 ,  H04N21/6118 ,  H04N21/6193 ,  H01L2924/00

摘要： Methods and systems are provided for loop-through for multi-chip communication systems. Receiver circuitry, that is operable to receive one or more input feeds, may comprise a plurality of chips, each of which may be configurable to generate a corresponding output comprising one or more feed elements (e.g., channels) extracted from the input feed(s). However, only a first chip may be operable to handle reception and/or initial processing of the one or more input feeds, with each one of the remaining chips processing a loop-through feed generated by the first chip, in order to generate the corresponding output of that chip. The first chip generates the loop-through feed based on the one or more input feeds, such as after the initial processing thereof in the first chip. Generating the loop-through feed may comprise applying channelization (e.g., separately for each remaining chip), switching based processing, and/or interfacing based processing.

摘要翻译： 提供了用于多芯片通信系统的循环的方法和系统。 可操作以接收一个或多个输入馈送的接收器电路可以包括多个芯片，每个芯片可以被配置为生成包括从输入馈送提取的一个或多个馈送元件（例如，信道）的相应输出 ）。 然而，仅第一芯片可操作以处理一个或多个输入馈送的接收和/或初始处理，其中每个剩余芯片处理由第一芯片产生的环通馈送，以便产生相应的 该芯片的输出。 第一芯片基于一个或多个输入馈送（例如在第一芯片中的初始处理之后）产生环通馈送。 产生环通馈送可以包括对信道化（例如，针对每个剩余的芯片单独地）进行信道化，基于切换的处理和/或基于接口的处理。

公开(公告)号：US09124291B2

公开(公告)日：2015-09-01

申请号：US13945579

申请日：2013-07-18

申请人： MaxLinear, Inc.

发明人： Xuefeng Chen ,  Kok Lim Chan ,  Eric Fogleman ,  Sheng Ye

IPC分类号： H03M1/10 ,  H03M1/38 ,  H03M1/12 ,  H03M1/06 ,  H03M1/46

CPC分类号： H03M1/38 ,  H03M1/06 ,  H03M1/0682 ,  H03M1/125 ,  H03M1/466

摘要： A system for processing signals may be configured to detect occurrence of particular errors, comprising meta-stability events, during digital conversion to analog signals, and to handle any detected meta-stability event, such as by adjusting at least a portion of a corresponding digital output based on detection of the meta-stability event. The adjusting of the digital output may comprise setting at least the portion of the digital output, such as to one of a plurality of predefined digital values or patterns. The system may comprise a code generator for generating and/or outputting the predefined digital values or patterns. The system may comprise a selector for adaptively selecting, for portions of the digital output, between output of normal processing path and between predefined values or patterns.

摘要翻译： 用于处理信号的系统可以被配置为在数字转换到模拟信号期间检测包括元稳定性事件的特定错误的发生，并且处理任何检测到的元稳定性事件，例如通过调整相应数字的至少一部分 基于元稳定事件检测的输出。 数字输出的调整可以包括至少设置数字输出的一部分，诸如多个预定数字值或模式之一。 系统可以包括用于生成和/或输出预定数字值或码型的码发生器。 系统可以包括选择器，用于针对数字输出的部分，在正常处理路径的输出之间和预定义的值或模式之间自适应地选择。

公开(公告)号：US09113302B2

公开(公告)日：2015-08-18

申请号：US13596852

申请日：2012-08-28

申请人： Curtis Ling ,  Timothy Gallagher ,  Glenn Chang

发明人： Curtis Ling ,  Timothy Gallagher ,  Glenn Chang

IPC分类号： H04H20/74 ,  H04W4/02 ,  H04H40/90 ,  H04B7/185 ,  H04N21/45 ,  H04N21/61 ,  H04H20/08 ,  H04N21/643 ,  H04N21/41 ,  H04N21/4363 ,  H04N21/4405 ,  H04H60/21 ,  H04H60/23

CPC分类号： H04B7/18526 ,  G01S19/42 ,  H04B7/185 ,  H04B7/18515 ,  H04B7/18517 ,  H04B7/18523 ,  H04H20/08 ,  H04H40/90 ,  H04H60/21 ,  H04H60/23 ,  H04J4/00 ,  H04L45/74 ,  H04L61/2007 ,  H04L65/4076 ,  H04N21/4126 ,  H04N21/4343 ,  H04N21/43637 ,  H04N21/4382 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/441 ,  H04N21/4524 ,  H04N21/4627 ,  H04N21/61 ,  H04N21/6143 ,  H04N21/6193 ,  H04N21/64322 ,  H04W4/023 ,  H04W76/20 ,  H04W84/042 ,  H04W84/10 ,  H04W84/12 ,  H04W88/08 ,  H04W88/16

摘要： A satellite dish assembly may comprise a broadcast receive module and a basestation module. The broadcast receive module may be operable to receive a satellite signal, recover media carried in the satellite signal, and output the media. The basestation module may be operable to accept the media output by the broadcast receive module and transmit the media in accordance with one or more wireless protocols. In being conveyed from the broadcast receive module to the basestation, the media content may not traverse any wide area network connection. The one or more wireless protocols may comprise one or more of: a cellular protocol and IEEE 802.11 protocol. The satellite dish assembly may comprise a routing module that may be operable to route data between the broadcast receive module, the basestation, and a gateway.

摘要翻译： 卫星天线组件可以包括广播接收模块和基站模块。 广播接收模块可以用于接收卫星信号，恢复在卫星信号中携带的媒体并输出媒体。 基站模块可以用于接受广播接收模块输出的媒体，并根据一个或多个无线协议发送媒体。 在从广播接收模块传送到基站时，媒体内容可能不经过任何广域网连接。 一个或多个无线协议可以包括蜂窝协议和IEEE 802.11协议中的一个或多个。 卫星天线组件可以包括可以用于在广播接收模块，基站和网关之间路由数据的路由模块。

公开(公告)号：US09106244B2

公开(公告)日：2015-08-11

申请号：US14458439

申请日：2014-08-13

申请人： MaxLinear, Inc.

发明人： Jianyu Zhu

IPC分类号： H03M1/06 ,  H03M1/74

CPC分类号： H03M1/08 ,  H03M1/0617 ,  H03M1/066 ,  H03M1/66 ,  H03M1/74

摘要： Methods and systems are provided for using localized dynamic element matching (DEM) and/or dynamic noise scaling (DNS) in digital-to-analog converters (DACs). Adaptive (localized) DEM may be applied in a DAC, by selecting one or more of a plurality DAC elements in the DAC, forcing the selected one or more of the plurality of DAC elements not to switch during digital-to-analog conversions, and scrambling remaining one or more of plurality of DAC elements when generating an output of the DAC. The adaptive DEM may be applied when the DAC input is backed off from full-scale. DNS may be applied in a DAC, by adaptively selecting one or more of a plurality DAC elements in the DAC and switching off the selected one or more of the plurality DAC elements such that the selected one or more of the plurality DAC elements do not contribute to generating an output of the DAC.

摘要翻译： 提供了在数模转换器（DAC）中使用局部动态元素匹配（DEM）和/或动态噪声缩放（DNS）的方法和系统。 可以通过选择DAC中的多个DAC元件中的一个或多个DAC来迫使所选择的一个或多个DAC元件在数模转换期间不切换，自适应（局部）DEM可以应用于DAC中;以及 当产生DAC的输出时，扰乱剩余一个或多个DAC元件。 当DAC输入从满量程退出时，可以应用自适应DEM。 DNS可以通过自适应地选择DAC中的多个DAC元件中的一个或多个并且关闭所选择的多个DAC元件中的一个或多个，使得所选择的一个或多个DAC元件不贡献 以产生DAC的输出。

公开(公告)号：US09094269B2

公开(公告)日：2015-07-28

申请号：US14224123

申请日：2014-03-25

申请人： MaxLinear, Inc.

发明人： Curtis Ling ,  Timothy Leo Gallagher

IPC分类号： H04K1/02 ,  H04L25/03 ,  H04L25/49 ,  H04L27/26

CPC分类号： H04L27/2614

摘要： A transmitter may comprise a first domain translation circuit, a first PAPR suppression circuit, and a descriptor generation circuit. The first domain translation circuit may convert a plurality of frequency-domain symbols of a first OFDM symbol to a corresponding plurality of first time-domain signals. The first PAPR suppression circuit may group the plurality of first time-domain signals into a plurality of sub-bands of the first time-domain. The first PAPR suppression circuit may invert one or more of the sub-bands of the first time-domain signals according to a value of a first descriptor. The descriptor generation circuit may determine the value of the first descriptor using an iterative process in which each iteration comprises random selection of a value of the first descriptor, determination of a PAPR of the first OFDM symbol processed using the randomly-selected value, and determination of whether said PAPR meets one or more determined criteria.

摘要翻译： 发射机可以包括第一域转换电路，第一PAPR抑制电路和描述符生成电路。 第一域转换电路可以将第一OFDM符号的多个频域符号转换为对应的多个第一时域信号。 第一PAPR抑制电路可以将多个第一时域信号分组成第一时域的多个子带。 第一PAPR抑制电路可以根据第一描述符的值来反转第一时域信号的一个或多个子带。 描述符生成电路可以使用迭代过程来确定第一描述符的值，其中每个迭代包括对第一描述符的值的随机选择，使用随机选择的值处理的第一OFDM符号的PAPR的确定和确定 是否所述PAPR是否满足一个或多个确定的标准。

公开(公告)号：US09042851B2

公开(公告)日：2015-05-26

申请号：US14274890

申请日：2014-05-12

申请人： MaxLinear, Inc.

发明人： Curtis Ling

IPC分类号： H04B1/18 ,  H03M1/12 ,  H04H40/90 ,  H04H60/82 ,  H04N7/20 ,  H04B1/16

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US09026118B2

公开(公告)日：2015-05-05

申请号：US13588769

申请日：2012-08-17

申请人： Curtis Ling

发明人： Curtis Ling

IPC分类号： H04W40/00 ,  H04W72/04

CPC分类号： H04W16/18 ,  G01S1/00 ,  H04W24/04 ,  H04W72/044

摘要： 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).

摘要翻译： 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：US08990864B2

公开(公告)日：2015-03-24

申请号：US13916130

申请日：2013-06-12

申请人： MaxLinear, Inc.

发明人： Anand Anandakumar ,  Ioannis Spyropoulos ,  Meetul Parikh

IPC分类号： H04N7/20 ,  H04N21/647

CPC分类号： H04N21/64738 ,  H04N21/438 ,  H04N21/44209 ,  H04N21/6143

摘要： A signal receiver may be configured to determine when signal generation changes affecting signals being received by the signal receiver may cause performance related changes; and to modify its (the signal receiver) configuration to handle the performance related changes. In this regard, the modifying of configuration may comprise determining characteristics of performance related changes, and controlling operations of the signal receiver based on the determined characteristics of the performance related changes. The performance related changes may comprise amplitude glitches, phase glitches, and/or bit or packet errors. The signal generation changes may comprise channel-to-frequency reassignment. Controlling operations of the signal receiver based on determined characteristics of the performance related changes may comprise adjusting such parameters as amplification gain and/or tracking loop bandwidth, and/or determining whether (or not) to ignore bit/packet errors—i.e. not reacquire (e.g., based on determination that tracking loops used in the signal receiver remain locked).

摘要翻译： 信号接收机可以被配置为确定何时影响由信号接收器接收的信号的信号产生改变可能导致性能相关的变化; 并修改其（信号接收器）配置以处理性能相关的更改。 在这方面，配置的修改可以包括确定性能相关变化的特性，以及基于所确定的性能相关变化的特性来控制信号接收机的操作。 性能相关的变化可能包括幅度毛刺，相位毛刺和/或位或分组错误。 信号产生改变可以包括频率到频率的重新分配。 基于性能相关变化的确定特性来控制信号接收机的操作可以包括调整诸如放大增益和/或跟踪环路带宽之类的参数，和/或确定是否（或不））忽略比特/分组错误 - 即， 不重新获取（例如，基于在信号接收器中使用的跟踪环路保持锁定的确定）。

公开(公告)号：US08964903B2

公开(公告)日：2015-02-24

申请号：US13865489

申请日：2013-04-18

申请人： Curtis Ling ,  Timothy Gallagher

发明人： Curtis Ling ,  Timothy Gallagher

IPC分类号： H03D3/18 ,  H04L27/26 ,  H04L27/00

CPC分类号： H04L27/2649 ,  H04L1/20 ,  H04L25/0204 ,  H04L27/2627 ,  H04L27/2659 ,  H04L27/266 ,  H04L27/2695 ,  H04L2027/003 ,  H04L2027/0038 ,  H04L2027/0067 ,  H04L2027/0075

摘要： Methods and apparatus for processing multichannel signals in a multichannel receiver are described. In one implementation, a plurality of demodulator circuits may provide a plurality of outputs to a processing module, with the processing module 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 the demodulators and used to adjust the demodulation of signals in the plurality of demodulators to improve phase noise performance.

摘要翻译： 描述了在多通道接收机中处理多信道信号的方法和装置。 在一个实现中，多个解调器电路可以向处理模块提供多个输出，处理模块然后基于多个输出同时估计噪声特性，并且基于多个输出生成公共噪声估计。 然后，可以将这种公共噪声估计提供给解调器，并用于调整多个解调器中的信号的解调以改善相位噪声性能。