公开(公告)号：US20120294094A1

公开(公告)日：2012-11-22

申请号：US13285864

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: G11C7/10 ,  G11C7/00 ,  G11C29/00

CPC classification number: G11C29/00 ,  G06F11/1048 ,  G11C7/1006 ,  G11C29/04 ,  G11C29/76 ,  G11C29/785 ,  G11C2029/0409 ,  G11C2029/4402

Abstract: A plurality of data lines and a plurality of bit lines may be used to write to and/or read from an array of memory cells. A switching element may select among different mappings between the plurality of data lines and the plurality of bit lines. The array may, for example, consist of N memory cells, the plurality of bit lines may consist of N bit lines, and the plurality of data lines may consist of N data lines, where N is an integer greater than 1. For a write operation in which a data block is to be written to the array, a configuration of the switching element may be controlled based, at least in part, on how sensitive the data block is to a faulty memory cell among the array of memory cells.

Abstract translation: 可以使用多条数据线和多条位线来写入和/或从存储器单元阵列读取。 开关元件可以在多条数据线与多条位线之间的不同映射中进行选择。 阵列可以例如由N个存储器单元组成，多个位线可以由N个位线组成，并且多个数据线可以由N个数据线组成，其中N是大于1的整数。对于写入 至少部分地基于数据块对存储器单元阵列中的故障存储器单元的敏感度来控制开关元件的配置，其中将数据块写入阵列的操作。

公开(公告)号：US20120289177A1

公开(公告)日：2012-11-15

申请号：US13556649

申请日：2012-07-24

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

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

IPC: H04B1/16

CPC classification number: H04B7/0845 ,  H04B1/16 ,  H04B7/0857 ,  H04B7/0885 ,  H04B7/12 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/03159 ,  H04L25/14 ,  H04L27/2649 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A receiver may comprise a plurality of signal processing paths, a bin-wise combiner, and an inverse transformation block. Each signal processing path may comprise a transformation block that is operable to transform a 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 associated time-domain signal. The transformation block in each said signal processing path may be a Fast Fourier Transform (FFT) block. The number of points used by the FFT block of any one of said plurality of signal processing paths may be based on the delay spread of a signal input to the one of the signal processing paths.

Abstract translation: 接收机可以包括多个信号处理路径，二进制组合器和逆变换块。 每个信号处理路径可以包括可操作以将时域数字信号变换成具有多个子带信号的相关联的频域信号的变换块。 二进制组合器可以可操作以组合多个信号处理路径的相应子带信号。 逆变换块可以用于将二进制组合器的输出变换为相关联的时域信号。 每个所述信号处理路径中的变换块可以是快速傅里叶变换（FFT）块。 所述多个信号处理路径中的任何一个的FFT块所使用的点数可以基于输入到信号处理路径之一的信号的延迟扩展。

公开(公告)号：US08311156B2

公开(公告)日：2012-11-13

申请号：US12831225

申请日：2010-07-06

Applicant: Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

Inventor： Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

IPC: H03D3/00

CPC classification number: H04B1/28 ,  H03D7/166

Abstract: A receiver configured to selectively receive an RF signal from an operating band having a plurality of RF channels. The receiver is configured to upconvert the desired RF channel to an intermediate frequency (IF) greater than the RF channel frequencies. The upconverted RF channel is downconverted to baseband or a low IF. The receiver can perform channel selection by filtering the baseband or low IF signal. The baseband or low IF signal can be upconverted to a programmable output IF.

Abstract translation: 一种被配置为从具有多个RF信道的工作频带有选择地接收RF信号的接收机。 接收机被配置为将期望的RF信道上变频到大于RF信道频率的中频（IF）。 上变频的RF信道被下变频到基带或低IF。 接收机可以通过对基带或低IF信号进行滤波来执行信道选择。 基带或低IF信号可以上变频到可编程输出IF。

公开(公告)号：US08229381B2

公开(公告)日：2012-07-24

申请号：US12243692

申请日：2008-10-01

Applicant: Curtis Ling ,  Andy Lo ,  Tete Sedalo

Inventor： Curtis Ling ,  Andy Lo ,  Tete Sedalo

IPC: H04B1/06 ,  H04B7/00 ,  H04B1/10

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：US20120163518A1

公开(公告)日：2012-06-28

申请号：US13336451

申请日：2011-12-23

Applicant: Madhukar Reddy ,  Eric Fogleman ,  Curtis Ling

Inventor： Madhukar Reddy ,  Eric Fogleman ,  Curtis Ling

IPC: H03D1/04 ,  H04B1/10

CPC classification number: H03D7/165 ,  H03D2200/005 ,  H04B1/1027 ,  H04B15/04 ,  H04B2215/065 ,  H04B2215/068

Abstract: A receiver may receive a signal and process each of a plurality of sub-bands of the received signal via a respective one of a plurality of first-type receive chains. The receiver may utilize a signal output by a first one of the plurality of the first-type receive chains to remove undesired signals from a signal output by a second one of the plurality of the first-type receive chains. The undesired signals may comprise aliases and/or harmonics of one or more signals that fall within a sub-band of the first one of the plurality of the first-type receive chains. The receiver may downconvert, filter, and digitize each of the plurality of sub-bands via a corresponding one of the plurality of the first type receive chains. The received signal may encompass the cable television band, and each of the plurality of sub-bands may comprise a plurality of cable television channels.

Abstract translation: 接收机可以经由多个第一类型接收链中的相应一个接收信号并处理接收信号的多个子带中的每个子带。 接收机可以利用由多个第一类型接收链中的第一个接收链的第一个输出的信号，以从由多个第一类型接收链中的第二类接收链输出的信号中去除不需要的信号。 不期望的信号可以包括落入多个第一类型接收链中的第一个的子带内的一个或多个信号的混叠和/或谐波。 接收机可以经由多个第一类型接收链中的对应的一个来对多个子带中的每一个进行下变频，滤波和数字化。 接收的信号可以包括有线电视频带，并且多个子频带中的每一个可以包括多个有线电视频道。

公开(公告)号：US20120128045A1

公开(公告)日：2012-05-24

申请号：US13023478

申请日：2011-02-08

Applicant: Curtis Ling ,  Timothy Gallagher

Inventor： Curtis Ling ,  Timothy Gallagher

IPC: H04B1/38

CPC classification number: H04L12/2863 ,  H04L12/12 ,  H04L12/2801 ,  H04L12/2861 ,  H04L12/2865 ,  H04L47/10 ,  H04L47/22 ,  H04L47/41 ,  Y02D50/30

Abstract: Methods and apparatus for power control in a communications device are described. Bonding of channels in a modem may be dynamically adjusted responsive to user activity or demand for bandwidth. Bonded channel configurations may be adjusted to single channel configurations for low power operation. Modem configuration may be dynamically adjusted so as to maintain only required synchronization and system information to facilitate rapid data transfer resumption upon demand.

Abstract translation: 描述通信设备中功率控制的方法和装置。 响应于用户活动或对带宽的需求，可以动态地调整调制解调器中的信道的绑定。 绑定通道配置可以调整为单通道配置以实现低功耗操作。 可以动态调整调制解调器配置，以便仅维护所需的同步和系统信息，以便于在需要时快速恢复数据传输。

公开(公告)号：US20110227614A1

公开(公告)日：2011-09-22

申请号：US13025111

申请日：2011-02-10

Applicant: Anand K. Anandakumar ,  Hyungjin Kim ,  Curtis Ling

Inventor： Anand K. Anandakumar ,  Hyungjin Kim ,  Curtis Ling

IPC: H03L7/08

CPC classification number: H03L1/026 ,  G01S19/235 ,  H03L1/022 ,  H03L7/1976

Abstract: To determine the level of frequency drift of a crystal oscillator as a result of a change in the its temperature, the temperature of the crystal oscillator is sensed and used together with previously stored data that includes a multitude of drift values of the frequency of the crystal oscillator each associated with a temperature of the crystal oscillator. Optionally, upon initialization of a GPS receiver in which the crystal oscillator is disposed, an initial temperature of the crystal oscillator is measured and a PLL is set to an initial frequency in association with the initial temperature. When acquisition fails in a region, the ppm region is changed. The temperature of the crystal oscillator is periodically measured and compared with the initial temperature, and the acquisition process is reset if there is a significant change in temperature. The GPS processor enters the tracking phase when acquisition is successful.

Abstract translation: 为了确定晶体振荡器的温度变化导致的晶体振荡器的频率漂移，晶体振荡器的温度与先前存储的包含晶体频率漂移值的数据一起被检测并使用 每个振荡器都与晶体振荡器的温度相关联。 可选地，在其中设置晶体振荡器的GPS接收机初始化时，测量晶体振荡器的初始温度，并将PLL设置为与初始温度相关联的初始频率。 当区域中的采集失败时，ppm区域发生变化。 周期性地测量晶体振荡器的温度并将其与初始温度进行比较，如果温度有明显变化，则采集过程将被重置。 采集成功后，GPS处理器进入跟踪阶段。

公开(公告)号：US20110105068A1

公开(公告)日：2011-05-05

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。

公开(公告)号：US20100271558A1

公开(公告)日：2010-10-28

申请号：US12831225

申请日：2010-07-06

Applicant: Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

Inventor： Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

IPC: H04N5/44 ,  H04B1/00

CPC classification number: H04B1/28 ,  H03D7/166

Abstract: A receiver configured to selectively receive an RF signal from an operating band having a plurality of RF channels. The receiver is configured to upconvert the desired RF channel to an intermediate frequency (IF) greater than the RF channel frequencies. The upconverted RF channel is downconverted to baseband or a low IF. The receiver can perform channel selection by filtering the baseband or low IF signal. The baseband or low IF signal can be upconverted to a programmable output IF.

Abstract translation: 一种被配置为从具有多个RF信道的工作频带有选择地接收RF信号的接收机。 接收机被配置为将期望的RF信道上变频到大于RF信道频率的中频（IF）。 上变频的RF信道被下变频到基带或低IF。 接收机可以通过对基带或低IF信号进行滤波来执行信道选择。 基带或低IF信号可以上变频到可编程输出IF。

公开(公告)号：US20090258625A1

公开(公告)日：2009-10-15

申请号：US12249269

申请日：2008-10-10

Applicant: Curtis Ling ,  Madhukar Reddy ,  John Wetherell

Inventor： Curtis Ling ,  Madhukar Reddy ,  John Wetherell

IPC: H04B7/00

CPC classification number: H03G3/20 ,  H03G3/3068 ,  H04B1/16 ,  H04B17/318

Abstract: An automatic gain control loop disposed in a receiver is adapted to compensate for varying levels of out of band interference sources by adaptively controlling the gain distribution throughout the receive signal path. One or more intermediate received signal strength indicator (RSSI) detectors are used to determine a corresponding intermediate signal level. The output of each RSSI detector is coupled to an associated comparator that compares the intermediate RSSI value against a corresponding threshold. The take over point (TOP) for gain stages is adjusted based in part on the comparator output values. The TOP for each of a plurality of gain stages may be adjusted in discrete steps or continuously.

Abstract translation: 设置在接收机中的自动增益控制回路适于通过自适应地控制整个接收信号路径上的增益分布来补偿不同级别的带外干扰源。 一个或多个中间接收信号强度指示器（RSSI）检测器用于确定相应的中间信号电平。 每个RSSI检测器的输出耦合到相关联的比较器，其将中间RSSI值与相应的阈值进行比较。 增益级的接收点（TOP）部分基于比较器输出值进行调整。 可以以离散步骤或连续地调整多个增益级中的每一个的TOP。