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公开(公告)号：US20160316276A1
公开(公告)日：2016-10-27
申请号：US15200109
申请日：2016-07-01
Applicant: MaxLinear, Inc.
Inventor： Curtis Ling , Timothy Gallagher , Sridhar Ramesh
IPC: H04N21/6587 , H04N7/10 , H04N21/6373 , H04N21/61 , H04N21/222 , H03M1/12 , H04H20/42
CPC classification number: H04N21/6587 , H03H17/0416 , H03M1/12 , H03M1/126 , H03M3/496 , H04H20/426 , H04H20/77 , H04H40/27 , H04J1/00 , H04N7/10 , H04N7/106 , H04N21/2221 , H04N21/6118 , H04N21/6373
Abstract: A network device may receive a signal from a headend, wherein a bandwidth of the received signal spans from a low frequency to a high frequency and encompasses a plurality of sub-bands. The network device may determine, based on communication with the headend, whether one of more of the sub-bands residing above a threshold frequency are available for carrying downstream data from the headend to the circuitry. The network device may digitize the signal using an ADC operating at a sampling frequency. The sampling frequency may be configured based on a result of the determining. When the sub-band(s) are available for carrying downstream data from the headend to the network device, the sampling frequency may be set to a relatively high frequency. When the sub-band(s) are not available for carrying downstream data from the headend to the network device, the sampling frequency may be set to a relatively low frequency.
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公开(公告)号：US09426734B2
公开(公告)日：2016-08-23
申请号：US13866205
申请日：2013-04-19
Applicant: MaxLinear, Inc.
Inventor： Curtis Ling , Timothy Gallagher , Sridhar Ramesh
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.
Abstract translation: 网络设备可以用于从电缆调制解调器终端系统（CMTS）接收指示，媒体接入控制（MAC）管理消息将由CMTS以固定的间隔发送。 在接收到指示之后，网络设备可以用于对网络设备的一个或多个组件断电并将休眠定时器设置为等于固定间隔减去过渡周期的整数倍的值。 网络设备可以在睡眠定时器到期时为网络设备的一个或多个组件供电。 网络设备可以在网络设备的缓冲器中的业务量达到阈值时对网络设备的一个或多个组件加电。
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公开(公告)号：US20160165302A1
公开(公告)日：2016-06-09
申请号：US15006337
申请日：2016-01-26
Applicant: MaxLinear, Inc
Inventor： Sridhar Ramesh , Curtis Ling , Jingnong Yang
IPC: H04N21/438
CPC classification number: H04N21/4383 , H04H20/63 , H04H40/90 , H04N7/106 , H04N21/2385 , H04N21/615
Abstract: A receiver includes a plurality of input paths for receiving and processing a plurality of input RF signals. The input paths isolate one or more portions of corresponding ones of the received input RF signals, and combine the isolated portions of the corresponding ones of the received input RF signals onto one or more output signals. A bandwidth of the isolated portions of the corresponding ones of the received input RF signals and a bandwidth of the output signals are variable. The isolated portions of the corresponding ones of the received plurality of input RF signals are extracted and utilized to generate the output signals. The portions of the corresponding ones of the received plurality of input RF signals may be mapped into one or more channel slots in the time domain. The channel slots may be assigned in the frequency domain to one or more frequency bins.
Abstract translation: 接收机包括用于接收和处理多个输入RF信号的多个输入路径。 输入路径隔离所接收的输入RF信号中相应的一个的一个或多个部分，并且将所接收的输入RF信号中相应的一个的隔离部分组合到一个或多个输出信号上。 所接收的输入RF信号中相应的一个的隔离部分的带宽和输出信号的带宽是可变的。 接收到的多个输入RF信号中相应的一部分的隔离部分被提取并用于产生输出信号。 所接收的多个输入RF信号中相应的部分可被映射到时域中的一个或多个信道时隙。 信道时隙可以在频域中分配给一个或多个频率仓。
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公开(公告)号：US20160056969A1
公开(公告)日：2016-02-25
申请号：US14929463
申请日：2015-11-02
Applicant: MaxLinear, Inc.
Inventor： Curtis Ling , Sridhar Ramesh , Timothy Gallagher
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。
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公开(公告)号：US20160013824A1
公开(公告)日：2016-01-14
申请号：US14828687
申请日：2015-08-18
Applicant: MaxLinear, Inc.
Inventor： Glenn Chang , Sridhar Ramesh , Curtis Ling
CPC classification number: 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
Abstract: Methods and systems are provided for multi-chip receivers with loop-through feeds. A receiver that comprises plurality of chips may receive one or more input feeds, with each of the chips generating a corresponding output comprising data (e.g., channels) extracted from the one or more input feeds. Only a first chip may 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 in the first chip, in order to generate the corresponding output of that chip. The loop-through feed may be generated based on the one or more input feeds. In this regard, the loop-through feed may comprise at least one of the one or more input feeds that is partially processed in the first one of the plurality of chips.
Abstract translation: 为具有循环馈送的多芯片接收机提供了方法和系统。 包括多个芯片的接收机可以接收一个或多个输入馈送，其中每个码片产生包括从一个或多个输入馈送提取的数据（例如，信道）的对应输出。 只有第一芯片可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在第一芯片中产生的循环馈送，以便产生该芯片的相应输出。 可以基于一个或多个输入馈送来生成环绕馈送。 在这方面，环通馈送可以包括在多个芯片中的第一个芯片中被部分处理的一个或多个输入馈送中的至少一个。
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Patent Agency Ranking
136.发明授权Method and system for server-side handling of a low-power client in a wide area network 有权服务器端处理广域网中低功耗客户端的方法和系统公开(公告)号：US09113410B2
公开(公告)日：2015-08-18
申请号：US14230070
申请日：2014-03-31
Applicant: MaxLinear, Inc.
Inventor： Curtis Ling , Timothy Gallagher , Sridhar Ramesh
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 CMTS may receive a request that a network device be permitted to enter a power-saving mode of operation. In response, the CMTS may enter a power-saving mode of operation wherein MAC management messages, transmission opportunities for the sleeping network device, and/or contention periods on one or more channels occur at independently determinable intervals. The CMTS may then transmit a message granting the network device permission to enter the power-saving mode of operation. The CMTS may start a sleep timer upon transmitting the MAC management message and may deregister the network device if no communication is received from the network device prior to expiration of the sleep timer. The CMTs may buffer traffic destined for the network device in a buffer of the CMTS while the network device is in the power-saving mode of operation, and may wake the network device upon the amount of buffered traffic reaching a threshold.
Abstract translation: CMTS可以接收允许网络设备进入省电模式的请求。 作为响应，CMTS可以进入功率节省模式，其中MAC管理消息，睡眠网络设备的传输机会和/或一个或多个信道上的争用周期以独立可确定的间隔发生。 然后，CMTS可以发送授权网络设备许可进入节电操作模式的消息。 CMTS可以在发送MAC管理消息时启动睡眠定时器，并且如果在睡眠定时器期满之前没有从网络设备接收到通信，则可以注销网络设备。 当网络设备处于节电操作模式时，CMT可以缓冲在CMTS的缓冲器中的网络设备的流量，并且可以在缓冲流量达到阈值时唤醒网络设备。
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137.发明授权公开(公告)号：US09100088B2
公开(公告)日：2015-08-04
申请号：US13917794
申请日：2013-06-14
Applicant: MaxLinear, Inc.
Inventor： Raja Pullela , Glenn Chang , Sridhar Ramesh
IPC: H04B7/185
CPC classification number: H04B7/18513 , H04L7/0054 , H04L7/0331
Abstract: A signal processing circuit, which is within a satellite reception assembly, may be operable to analyze actual frequency information corresponding to a plurality of downconverted signals. Each of the downconverted signals may be downconverted using one or more corresponding local oscillators (LOs). Based on the analyzing, one or more of the following may be determined: one or more frequency offsets associated with the one or more corresponding LOs and one or more actual guard bands. The signal processing circuit may generate information on the determined frequency offsets and the determined actual guard bands. The signal processing circuit may perform, based on the generated information, one or both of a band stacking operation and a channel stacking operation so as to prevent channels/bands being stacked on each other or being overlapped. The signal processing circuit may perform, based on the generated information, frequency corrections for channel tuning in a gateway.
Abstract translation: 在卫星接收组件内的信号处理电路可以用于分析对应于多个下变频信号的实际频率信息。 每个下变频信号可以使用一个或多个相应的本地振荡器（LO）进行下变频。 基于分析，可以确定以下中的一个或多个：与一个或多个对应的LO和一个或多个实际保护带相关联的一个或多个频率偏移。 信号处理电路可以产生关于确定的频率偏移和所确定的实际保护频带的信息。 信号处理电路可以基于生成的信息执行频带堆叠操作和信道堆叠操作中的一个或两个，以防止信道/频带彼此堆叠或重叠。 信号处理电路可以基于生成的信息执行用于网关中的信道调谐的频率校正。
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138.发明申请DETECTION AND COMPENSATION OF DIELECTRIC RESONATOR OSCILLATOR FREQUENCY DRIFT 有权电介质谐振器振荡器频率干扰的检测与补偿公开(公告)号：US20150214958A1
公开(公告)日：2015-07-30
申请号：US14607789
申请日：2015-01-28
Applicant: MaxLinear, Inc.
Inventor： Sridhar Ramesh , Subramanian Anantharaman , Harish Maller
CPC classification number: H03L7/00 , H03B5/1864 , H03L1/00
Abstract: Systems and methods are provided for detection and compensation of dielectric resonator oscillator frequency drift. DRO frequency drift detection and compensation may be applied in a system (e.g., outdoor unit) during handling of received signals. The DRO frequency drift detection and compensation may comprise, for each input signal, obtaining DRO frequency drift related information, related to the input signal; determining, based on the obtained DRO frequency drift related information, one or more adjustments applicable to processing of the input signal and/or the generation of the output signal using the at least portion of the input signal; and applying the one or more adjustments. The DRO frequency drift detection and compensation may be applied continually, occasionally, and/or periodically.
Abstract translation: 提供系统和方法用于介质谐振器振荡器频率漂移的检测和补偿。 在处理接收到的信号期间，DRO频率漂移检测和补偿可以应用于系统（例如，室外单元）中。 对于每个输入信号，DRO频率漂移检测和补偿可以包括与输入信号相关的DRO频率漂移相关信息; 基于所获得的DRO频率漂移相关信息，使用所述输入信号的所述至少一部分来确定适用于所述输入信号的处理和/或产生所述输出信号的一个或多个调整; 并应用一个或多个调整。 可以连续地，偶尔地和/或周期性地应用DRO频率漂移检测和补偿。
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公开(公告)号：US09055324B2
公开(公告)日：2015-06-09
申请号：US14107524
申请日：2013-12-16
Applicant: MaxLinear, Inc.
Inventor： Anand K. Anandakumar , Sridhar Ramesh
CPC classification number: H04N21/4305 , H04L27/2656 , H04L27/2657 , H04L27/2665 , H04L27/2671 , H04L27/2675 , H04L27/2676 , H04L27/2685 , H04L27/2695 , H04N21/4343 , H04N21/44016
Abstract: A method and an apparatus for achieving fast resynchronization of received signals in a time slice in DVB-T/H systems. When the clock drift is low, the location of the symbol window can be decided based on a previous time slice. When the clock drift is high and when there are large delay spreads, the location of the symbol window can be decided based on the detected scattered pilot positions. The placement of the symbol window can further be enhanced through processing of the received TPS bits.
Abstract translation: 一种用于在DVB-T / H系统的时间片中实现接收信号的快速重新同步的方法和装置。 当时钟漂移低时，可以基于先前的时间片来确定符号窗口的位置。 当时钟漂移很高时，并且当存在大的延迟扩展时，可以基于检测到的分散导频位置来确定符号窗口的位置。 可以通过处理所接收的TPS位来进一步增强符号窗口的放置。
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公开(公告)号：US20140313074A1
公开(公告)日：2014-10-23
申请号：US14245658
申请日：2014-04-04
Applicant: MaxLinear, Inc.
Inventor： Glenn Chang , Curtis Ling , Sridhar Ramesh
IPC: H04B7/185
CPC classification number: H04B7/18523
Abstract: A direct broadcast satellite (DBS) reception assembly may receive a desired satellite signal and process the desired satellite signal for output to a gateway. The DBS assembly may also receive one or more undesired satellite signals and determine a performance metric of the one or more undesired satellite signals. The elevation angle of the assembly and/or the azimuth angle of the assembly may be adjusted based on the performance metric(s) of the undesired satellite signal(s). The adjusting of the elevation angle and/or the azimuth angle may comprise electronically steering a directivity of a receive radiation pattern of the DBS reception assembly and/or mechanically steering one or more components of the assembly via motors, servos, actuators, MEMS, and/or the like. The performance metric may be received signal strength of the undesired signals, received signal strength of the desired signal, SNR of the desired signal, and/or SNR of the undesired signals.
Abstract translation: 直接广播卫星（DBS）接收组件可以接收所需的卫星信号并处理所需的卫星信号以输出到网关。 DBS组件还可以接收一个或多个不期望的卫星信号并且确定一个或多个不需要的卫星信号的性能度量。 可以基于不需要的卫星信号的性能度量来调整组件的仰角和/或组件的方位角。 仰角和/或方位角的调节可以包括电子地操纵DBS接收组件的接收辐射图的方向性和/或通过电动机，伺服机构，致动器，MEMS和/或机械地转向组件的一个或多个部件 /等等。 性能度量可以是不期望信号的接收信号强度，期望信号的接收信号强度，期望信号的SNR和/或不期望信号的SNR。
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