公开(公告)号：US08817834B2

公开(公告)日：2014-08-26

申请号：US13462717

申请日：2012-05-02

Applicant: Yongtao Wang ,  Curtis Ling ,  Tim Gallagher

Inventor： Yongtao Wang ,  Curtis Ling ,  Tim Gallagher

IPC: H01S3/14 ,  H04N9/73 ,  A61B5/04 ,  H04L27/38

CPC classification number: H04L27/3863 ,  H04L27/2334 ,  H04L27/2338 ,  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 residual phase and amplitude tilt of the downconverted channels with removed average I and Q gain and phase mismatch, and compensating for said residual 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.

Abstract translation: 用于宽带通信接收机的I / Q失配校准和补偿的方法和系统可以包括：接收多个射频（RF）信道，将接收的多个接收的RF信道下变频到基带频率，确定和去除平均同相（I） 和下变频信道的正交（Q）增益和相位失配，确定下变频信道的剩余相位和振幅倾斜，其中去除了平均I和Q增益和相位失配，并补偿所述剩余相位和振幅倾斜I和Q增益， 下变频通道的相位失配。 可以使用可以包括一个或多个全通滤波器的相位倾斜校正滤波器来补偿确定的相位倾斜。 可以使用盲源分离（BSS）估计算法来确定平均I和Q增益和相位失配。

公开(公告)号：US08797813B2

公开(公告)日：2014-08-05

申请号：US13285945

申请日：2011-10-31

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

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

IPC: G11C29/00 ,  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.

Abstract translation: 一种用于存储器功率和/或面积减小的方法和装置。 可以扫描存储器单元阵列以检测阵列中的故障存储器单元（如果有的话）。 可以基于扫描的结果并且基于存储器单元阵列中的一个或多个的灵敏度系数来控制施加到存储器单元阵列的电源电压Vmem。 灵敏度系数可以指示存储器单元阵列中的一个或多个存在故障的影响可能对于将数据读取和写入存储器阵列的设备的性能有影响。 附加地或替代地，存储器单元的物理尺寸可以基于灵敏度系数和/或基于可以在存储器单元阵列中容忍的故障存储器单元的数量来确定。

公开(公告)号：US08687535B2

公开(公告)日：2014-04-01

申请号：US13553195

申请日：2012-07-19

Applicant: Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

Inventor： Curtis Ling ,  Timothy Gallagher ,  Sridhar Ramesh

IPC: G08C17/00

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。

公开(公告)号：US20130272228A1

公开(公告)日：2013-10-17

申请号：US13862339

申请日：2013-04-12

Applicant: Timothy Gallagher ,  Curtis Ling ,  Alan Trerise ,  Kishore Seendripu

Inventor： Timothy Gallagher ,  Curtis Ling ,  Alan Trerise ,  Kishore Seendripu

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04W16/02 ,  H04W84/12 ,  H04W88/08

Abstract: A single receiver is operable to utilize full spectrum capture to capture signals over a wide spectrum comprising a plurality of WiFi frequency bands, extract one or more WiFi channels from said captured signals and aggregate a plurality of blocks of said WiFi channels to create one or more aggregated WiFi channels. The WiFi frequency bands include 2.4 GHz and 5 GHz WiFi frequency bands. A plurality of blocks of the WiFi channels may be aggregated from contiguous blocks of spectrum and/or non-contiguous blocks of spectrum in one or more of said plurality of WiFi frequency bands. One or more non-WiFi channels may be filtered out from the captured signals. One or more aggregated WiFi channels may be assigned to one or more WiFi enabled communication devices. At least a portion of the one or more aggregated WiFi channels may be dynamically assigned to one or more other WiFi enabled communication devices.

Abstract translation: 单个接收器可操作以利用全频谱捕获来在包括多个WiFi频带的宽频谱上捕获信号，从所述捕获的信号中提取一个或多个WiFi信道并聚合所述WiFi信道的多个块以创建一个或多个 聚合的WiFi频道。 WiFi频段包括2.4 GHz和5 GHz WiFi频段。 WiFi信道的多个块可以从所述多个WiFi频带中的一个或多个中的频谱和/或非连续的频谱块的连续块聚合。 可以从捕获的信号中滤出一个或多个非WiFi信道。 可以将一个或多个聚合的WiFi信道分配给一个或多个启用WiFi的通信设备。 一个或多个聚合的WiFi信道的至少一部分可以被动态分配给一个或多个其他支持WiFi的通信设备。

公开(公告)号：US20130272227A1

公开(公告)日：2013-10-17

申请号：US13862336

申请日：2013-04-12

Applicant: Timothy Gallagher ,  Curtis Ling ,  Alan Trerise ,  Kishore Seendripu

Inventor： Timothy Gallagher ,  Curtis Ling ,  Alan Trerise ,  Kishore Seendripu

IPC: H04W72/04

CPC classification number: H04W72/04 ,  H04W16/02 ,  H04W84/12 ,  H04W88/08

Abstract: A WiFi device, which utilizes full spectrum capture, captures signals over a wide spectrum including one or more WiFi frequency bands and extracts one or more WiFi channels from the captured signals. The AP analyzes the extracted WiFi channels and aggregates a plurality of blocks of WiFi channels to create one or more aggregated WiFi channels based on the analysis. The WiFi frequency bands comprise 2.4 GHz and 5 GHz WiFi frequency bands. The AP determines one or more characteristics of the extracted WiFi channels based on the analysis. The determined characteristics comprise noise, interference, fading and blocker information. The AP generates a channel map comprising at least the extracted one or more WiFi channels based on the determined characteristics. The AP dynamically and/or adaptively senses the extracted one or more WiFi channels and updates the determined characteristics of the extracted WiFi channels.

Abstract translation: 使用全频谱捕获的WiFi设备在包括一个或多个WiFi频带的广谱中捕获信号，并从捕获的信号中提取一个或多个WiFi信道。 AP分析提取的WiFi信道并且聚合多个WiFi信道块以基于分析来创建一个或多个聚合的WiFi信道。 WiFi频段包括2.4GHz和5GHz WiFi频带。 AP基于分析确定提取的WiFi信道的一个或多个特征。 所确定的特征包括噪声，干扰，衰落和阻塞信息。 基于所确定的特征，AP产生至少包括所提取的一个或多个WiFi信道的频道映射。 AP动态地和/或自适应地感测所提取的一个或多个WiFi信道，并更新确定的提取的WiFi信道的特性。

公开(公告)号：US20130268978A1

公开(公告)日：2013-10-10

申请号：US13857776

申请日：2013-04-05

Applicant: Alan Trerise ,  Curtis Ling

Inventor： Alan Trerise ,  Curtis Ling

IPC: H04N21/61

CPC classification number: H04N21/6143 ,  H01Q1/1221 ,  H01Q1/1264 ,  H01Q1/50 ,  H01Q7/00 ,  H01Q9/30 ,  H01Q9/44 ,  H01Q15/16 ,  H01Q19/17 ,  H01Q21/28 ,  H04N7/20

Abstract: A multiband receiver comprising an integrated diversity antenna system is operable to receive satellite and terrestrial television. The multiband receiver captures spectrum comprising satellite television channels and/or terrestrial television channels and demodulate the satellite television channels and/or the terrestrial television channels. The diversity antenna system is integrated on a board or substrate within the multiband receiver. The multiband receiver discriminates between satellite television signals and non-satellite television signals in the captured spectrum and also discriminates between the terrestrial television signals and non-terrestrial television signals in the captured spectrum. The multiband receiver generates output satellite television channel content from the demodulated satellite television channels and also generates output terrestrial television channel content from the demodulated terrestrial television channels. The multiband receiver packetizes the generated output satellite and/or terrestrial television channel content. The generated output satellite and/or terrestrial television channel content is communicated to one or more mobile communication devices.

公开(公告)号：US20130268977A1

公开(公告)日：2013-10-10

申请号：US13857755

申请日：2013-04-05

Applicant: Curtis Ling ,  Glenn Chang

Inventor： Curtis Ling ,  Glenn Chang

IPC: H04N21/61

Abstract: A satellite television system comprises a satellite dish, a terrestrial television receiver integrated within the satellite dish, and an integrated satellite and terrestrial TV set-top box. The satellite dish integrated satellite and terrestrial TV set-top box receive satellite television signals via the satellite dish and receive processed terrestrial television signals from the terrestrial television receiver integrated within the satellite dish. The satellite dish integrated satellite and terrestrial TV set-top box generate output satellite television channel content from the received satellite television signals and output terrestrial television channel content from the processed terrestrial television signals. The terrestrial television receiver may comprise a plurality of integrated demodulators and the terrestrial television receiver capture, utilizing a plurality of integrated demodulators, a corresponding plurality of terrestrial television channels. The plurality of integrated demodulators may be operable to generate the processed terrestrial television signals from the captured corresponding plurality of terrestrial television channels.

Abstract translation: 卫星电视系统包括卫星天线，集成在卫星天线内的地面电视接收机，以及综合卫星和地面电视机顶盒。 卫星天线集成卫星和地面电视机顶盒通过卫星天线接收卫星电视信号，并接收来自集成在卫星天线内的地面电视接收机的处理后的地面电视信号。 卫星天线集成卫星和地面电视机顶盒从收到的卫星电视信号产生输出卫星电视频道内容，并从处理的地面电视信号中输出地面电视频道内容。 地面电视接收机可以包括多个集成解调器，并且地面电视接收机利用多个集成解调器捕获对应的多个地面电视频道。 多个集成解调器可以用于从捕获的对应的多个地面电视频道产生经处理的地面电视信号。

公开(公告)号：US08548411B2

公开(公告)日：2013-10-01

申请号：US13563955

申请日：2012-08-01

Applicant: Anand K. Anandakumar ,  Curtis Ling ,  Sugbong Kang

Inventor： Anand K. Anandakumar ,  Curtis Ling ,  Sugbong Kang

IPC: H04B1/16

CPC classification number: H04B7/0857 ,  H04L1/06 ,  H04L5/0023 ,  H04L27/0008 ,  H04L27/2649 ,  H04L27/265 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A system may comprise a plurality of signal processing paths, a bin-wise combiner, an inverse transformation block, and a DAC. Each signal processing path may comprise a transformation block that is operable to transform a first time-domain digital signal to an associated frequency-domain signal having a plurality of subband signals. The bin-wise combiner may be operable to combine corresponding subband signals of the plurality of signal processing paths. The inverse transformation block may be operable to transform output of the bin-wise combiner to an second time-domain signal. The DAC may be operable to converts the second time-domain signal to a corresponding analog signal.

公开(公告)号：US08548075B2

公开(公告)日：2013-10-01

申请号：US12947667

申请日：2010-11-16

Applicant: Seung-Chul Hong ,  Anand Anandakumar ,  Curtis Ling

Inventor： Seung-Chul Hong ,  Anand Anandakumar ,  Curtis Ling

IPC: H04K1/10

CPC classification number: H04L1/0023 ,  H04L5/0007 ,  H04L7/0016 ,  H04L25/0216 ,  H04L27/265 ,  H04L27/2665 ,  H04L27/2671 ,  H04L27/2695

Abstract: Systems and methods for adjusting timing in a communication system, such as an OFDM system are described. In one implementation an error signal is generated to adjust the timing of a variable rate interpolator so as to adjust FFT timing. The error signal may be based on detection of significant peaks in an estimate of the impulse response of the channel, with the peak locations being tracked over subsequent symbols and the system timing adjusted in response to changes in the peaks.

公开(公告)号：US08526898B2

公开(公告)日：2013-09-03

申请号：US12762900

申请日：2010-04-19

Applicant: Madhukar Reddy ,  Curtis Ling ,  Tim Gallagher

Inventor： Madhukar Reddy ,  Curtis Ling ,  Tim Gallagher

IPC: H04B1/16

CPC classification number: H04N21/4263 ,  H04B1/0014 ,  H04N5/455 ,  H04N5/50 ,  H04N21/4382 ,  H04N21/4383 ,  H04N21/454 ,  H04N21/6143 ,  H04N21/6193

Abstract: A wideband receiver system is provided to concurrently receive multiple RF channels including a number of desired channels that are located in non-contiguous portions of a radio frequency spectrum and to group the number of desired channels into a contiguous frequency band. The system includes a wideband receiver having a complex mixer for down-shifting the multiple RF channels and transforming them to an in-phase signal and a quadrature signal in the baseband. The system further includes a wideband analog-to-digital converter module that digitizes the in-phase and quadrature signals and a digital frontend module that transforms the digital in-phase and quadrature signals to baseband signals that contains only the number of desired RF channels. that are now located in a contiguous frequency band. An up-converter module up-shifts the baseband signals to a contiguous band in an IF spectrum so that the system can directly interface with commercially available demodulators.

Abstract translation: 提供宽带接收机系统以同时接收多个RF信道，包括位于无线电频谱的非连续部分中的多个期望信道，并将期望信道的数目分组成连续的频带。 该系统包括具有复合混频器的宽带接收机，用于对多个RF信道进行下变频并将其变换成基带中的同相信号和正交信号。 该系统还包括将同相和正交信号数字化的宽带模数转换器模块和将数字同相和正交信号转换成仅包含所需RF信道数的基带信号的数字前端模块。 它们现在位于连续的频带中。 上变频器模块将基带信号升级到IF频谱中的连续频带，使系统可以直接与市售解调器接口。