利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

435 条记录 (耗时 0.031 秒)

    Method for channel tracking in an LMS adaptive equalizer for 8VSB
    1.
    发明授权
    Method for channel tracking in an LMS adaptive equalizer for 8VSB 失效
    用于8VSB的LMS自适应均衡器中的信道跟踪方法

    公开(公告)号：US07616685B2

    公开(公告)日：2009-11-10

    申请号：US11776233

    申请日：2007-07-11

    申请人： Mark Fimoff ,  Jin Kim ,  Gregory J. Tomezak

    发明人： Mark Fimoff ,  Jin Kim ,  Gregory J. Tomezak

    IPC分类号： H03H7/30

    CPC分类号： H04L25/03019 ,  H04L2025/03617 ,  H04L2025/03687

    摘要： A method and system for channel tracking in an adaptive equalizer for a digital data receiver. The method includes determining a first set of tap weights and a second set of tap weights of the equalizer, and determining a difference between the first and second sets of tap weights. The method also includes determining an error estimate based on symbols received at the receiver, comparing the error estimate with a divergence threshold, and determining a step size factor based on the difference and the comparison.

    摘要翻译： 一种用于数字数据接收机的自适应均衡器中的信道跟踪的方法和系统。 该方法包括确定均衡器的抽头权重的第一集合和抽头权重的第二集合，以及确定第一和第二抽头权重集之间的差异。 该方法还包括基于在接收机处接收的符号来确定误差估计，将误差估计与发散阈值进行比较，以及基于差异和比较来确定步长因子。

    METHOD FOR CHANNEL TRACKING IN AN LMS ADAPTIVE EQUALIZER FOR 8VSB
    3.
    发明申请
    METHOD FOR CHANNEL TRACKING IN AN LMS ADAPTIVE EQUALIZER FOR 8VSB 失效
    用于8VSB的LMS自适应均衡器中的信道跟踪方法

    公开(公告)号：US20080175309A1

    公开(公告)日：2008-07-24

    申请号：US11776233

    申请日：2007-07-11

    申请人： Mark Fimoff ,  Jin Kim ,  Gregory J. Tomezak

    发明人： Mark Fimoff ,  Jin Kim ,  Gregory J. Tomezak

    IPC分类号： H04L25/03

    CPC分类号： H04L25/03019 ,  H04L2025/03617 ,  H04L2025/03687

    摘要： A method and system for channel tracking in an adaptive equalizer for a digital data receiver. The method includes determining a first set of tap weights and a second set of tap weights of the equalizer, and determining a difference between the first and second sets of tap weights. The method also includes determining an error estimate based on symbols received at the receiver, comparing the error estimate with a divergence threshold, and determining a step size factor based on the difference and the comparison.

    摘要翻译： 一种用于数字数据接收机的自适应均衡器中的信道跟踪的方法和系统。 该方法包括确定均衡器的抽头权重的第一集合和抽头权重的第二集合，以及确定第一和第二抽头权重集之间的差异。 该方法还包括基于在接收机处接收的符号来确定误差估计，将误差估计与发散阈值进行比较，以及基于差异和比较来确定步长因子。

    Channel impulse response estimating decision feedback equalizer
    5.
    发明申请
    Channel impulse response estimating decision feedback equalizer 有权
    信道脉冲响应估计判决反馈均衡器

    公开(公告)号：US20050254570A1

    公开(公告)日：2005-11-17

    申请号：US10911282

    申请日：2004-08-04

    申请人： Bruno Amizic ,  Mark Fimoff ,  Jin Kim ,  Sreenivasa Nerayanuru

    发明人： Bruno Amizic ,  Mark Fimoff ,  Jin Kim ,  Sreenivasa Nerayanuru

    IPC分类号： H04L1/00 ,  H04L25/03 ,  H04L5/12

    CPC分类号： H04L25/03057 ,  H04L2025/03382 ,  H04L2025/0349

    摘要： A decision feedback equalizer is operated by making first symbol decisions from an output of the decision feedback equalizer such that the first symbol decisions are characterized by a relatively long processing delay, by making second symbol decisions from the output of the decision feedback equalizer such that the second symbol decisions are characterized by a relatively short processing delay, and by determining tap weights for the decision feedback equalizer based on the first and second symbol decisions. The first symbol decisions may be derived from the output of a long traceback trellis decoder. The second symbol decisions may be derived either from the output of a short traceback trellis decoder or from shorter delay outputs of the long traceback trellis decoder.

    摘要翻译： 通过从所述判决反馈均衡器的输出进行第一符号判定来操作判定反馈均衡器，以便通过从所述判决反馈均衡器的输出进行第二符号判定，使得所述第一符号判定由相对长的处理延迟表征，使得 第二符号决定的特征在于相对短的处理延迟，并且通过基于第一和第二符号决定确定用于判决反馈均衡器的抽头权重。 第一符号决定可以从长跟踪网格解码器的输出中导出。 第二符号决定可以从短跟踪网格解码器的输出或长跟踪网格解码器的较短延迟输出中导出。

    Channel impulse response estimating decision feedback equalizer
    6.
    发明授权
    Channel impulse response estimating decision feedback equalizer 有权
    信道脉冲响应估计判决反馈均衡器

    公开(公告)号：US08320442B2

    公开(公告)日：2012-11-27

    申请号：US10911282

    申请日：2004-08-04

    申请人： Bruno Amizic ,  Mark Fimoff ,  Jin Kim ,  Sreenivasa M. Nerayanuru

    发明人： Bruno Amizic ,  Mark Fimoff ,  Jin Kim ,  Sreenivasa M. Nerayanuru

    IPC分类号： H03H7/30

    CPC分类号： H04L25/03057 ,  H04L2025/03382 ,  H04L2025/0349

    摘要： A decision feedback equalizer is operated by making first symbol decisions from an output of the decision feedback equalizer such that the first symbol decisions are characterized by a relatively long processing delay, by making second symbol decisions from the output of the decision feedback equalizer such that the second symbol decisions are characterized by a relatively short processing delay, and by determining tap weights for the decision feedback equalizer based on the first and second symbol decisions. The first symbol decisions may be derived from the output of a long traceback trellis decoder. The second symbol decisions may be derived either from the output of a short traceback trellis decoder or from shorter delay outputs of the long traceback trellis decoder.

    摘要翻译： 通过从所述判决反馈均衡器的输出进行第一符号判定来操作判定反馈均衡器，以便通过从所述判决反馈均衡器的输出进行第二符号判定，使得所述第一符号判定由相对长的处理延迟表征，使得 第二符号决定的特征在于相对短的处理延迟，并且通过基于第一和第二符号决定确定用于判决反馈均衡器的抽头权重。 第一符号决定可以从长跟踪网格解码器的输出中导出。 第二符号决定可以从短跟踪网格解码器的输出或长跟踪网格解码器的较短延迟输出中导出。

    Light guide plate and liquid crystal display device having the same
    7.
    发明申请
    Light guide plate and liquid crystal display device having the same 有权
    导光板及具有该导光板的液晶显示装置

    公开(公告)号：US20080031006A1

    公开(公告)日：2008-02-07

    申请号：US11730802

    申请日：2007-04-04

    申请人： Hee Kim ,  Jin Kim ,  Jin Kim

    发明人： Hee Kim ,  Jin Kim ,  Jin Kim

    IPC分类号： F21V8/00

    CPC分类号： G02B6/0036 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0061

    摘要： A light guide plate and a liquid crystal display device having the same. The light guide plate is disposed upstream of a liquid crystal panel to refract light supplied through an edge thereof, toward the liquid crystal panel. In the light guide plate, a plate body is disposed at a side of a light source for supplying light when a supply voltage is applied. A plurality of pyramidal diffusing elements are arrayed in a predetermined pattern on a surface of the plate body. Each of the diffusing elements is rotated clockwise or counterclockwise about an axis extending through a vertex of the diffusing element perpendicularly to the surface of the plate body so that an edge of the diffusing element facing a reference line connecting a central point of the light source to a central point of the plate body is angled 10° to 35° about the reference line.

    摘要翻译： 导光板和具有该导光板的液晶显示装置。 导光板配置在液晶面板的上游侧，将通过其边缘供给的光折射到液晶面板。 在导光板中，当施加电源电压时，板体设置在用于供应光的光源的一侧。 多个金字塔形扩散元件以预定图案排列在板体的表面上。 每个扩散元件围绕延伸穿过漫射元件的顶点的轴线顺时针或逆时针旋转，垂直于板体的表面，使得漫射元件的边缘面向连接光源的中心点的参考线， 板体的中心点围绕参考线倾斜10°至35°。

    Battery pack having short circuit prevention function
    10.
    发明申请
    Battery pack having short circuit prevention function 审中-公开
    电池组具有防短路功能

    公开(公告)号：US20060097693A1

    公开(公告)日：2006-05-11

    申请号：US11250570

    申请日：2005-10-17

    申请人： Yong Kim ,  Jin Kim ,  Jin Kim

    发明人： Yong Kim ,  Jin Kim ,  Jin Kim

    IPC分类号： H02J7/00

    CPC分类号： H01M2/1066 ,  H01M2/34 ,  H02J7/0045

    摘要： Conventional rechargeable battery packs for portable electronic products possess charging terminals for connecting the battery packs to charging devices. When a portable electronic product is in use, there is a potential for short circuiting the battery pack by connecting one or more objects to the exposed charging terminals. This invention provides a battery pack for a portable electronic product with a short circuit prevention function where the charging terminal is exposed only when plugged into a charging device. By protecting the charging terminals, the invention prevents a short circuit from occurring during normal operation of the portable electronic product. The battery pack with a short circuit prevention function comprises a spring-loaded cover that is adapted to travel over the main body of the battery pack to alternately cover and expose the charging terminal.

    摘要翻译： 用于便携式电子产品的常规可再充电电池组具有用于将电池组连接到充电装置的充电端子。 当使用便携式电子产品时，通过将一个或多个物体连接到暴露的充电终端，存在电池组短路的可能性。 本发明提供了一种具有短路防止功能的便携式电子产品的电池组，其中充电端子仅在插入充电装置时才露出。 通过保护充电端子，本发明防止在便携式电子产品的正常操作期间发生短路。 具有短路防止功能的电池组包括适于在电池组的主体上移动以交替地覆盖和暴露充电端子的弹簧加载的盖。