Memory transfer controller and method of transfer control of video line data and macroblock data
    71.
    发明授权
    Memory transfer controller and method of transfer control of video line data and macroblock data 有权
    存储器传输控制器和视频行数据和宏块数据的传输控制方法

    公开(公告)号:US09100653B2

    公开(公告)日:2015-08-04

    申请号:US11461611

    申请日:2006-08-01

    CPC classification number: H04N19/423 H04N19/61

    Abstract: A method of transferring sets of video line data and macroblock data, includes the steps of determining a macroblock period and a video line period longer than the macroblock period, dividing each set of video line data to be transferred within the video line period into two or more portions according to the difference between the determined macroblock period and video line period, aligning a burst transfer of each of the portions of the divided set of video line data and each set of macroblock data to the macroblock period, and initiating the burst transfer of the sets of video line data and macroblock data at macroblock period intervals.

    Abstract translation: 一种传送视频行数据和宏块数据集的方法包括以下步骤:确定宏块周期和比宏块周期长的视频行周期,将在视频行周期内传送的每组视频行数据划分成两个或 根据所确定的宏块周期和视频行周期之间的差异来更多部分,将分割的视频行数据集合的每个部分的突发传送与每个宏块数据集对齐到宏块周期,并且发起突发传送 在宏块周期间隔的视频行数据和宏块数据集合。

    Recursive de-banding filter for digital images
    72.
    发明授权
    Recursive de-banding filter for digital images 有权
    用于数字图像的递归去带滤波器

    公开(公告)号:US09092856B2

    公开(公告)日:2015-07-28

    申请号:US14068656

    申请日:2013-10-31

    CPC classification number: G06T5/002 G06T5/20 G06T2207/10016 G06T2207/20012

    Abstract: A method and apparatus are provided for filtering banding noise in a signal representative of an image. The method includes detecting, by a banding noise detector, banding noise in a neighborhood of a current pixel of the image, determining, by an adaptive filter weight decision unit, a number of banding steps in the neighborhood of the current pixel, determining, by the adaptive filter weight decision unit, a difference between a current pixel value and a previous output value, selecting, by the adaptive filter weight decision unit, a filter weight based on the number of banding steps, the difference between the current pixel value and the previous output value, and the detected banding noise, and filtering, by a recursive filter, the current pixel value according to the selected filter weight.

    Abstract translation: 提供了一种方法和装置,用于对代表图像的信号中的条带噪声进行滤波。 该方法包括通过带状噪声检测器检测图像的当前像素附近的条带噪声,通过自适应滤波器权重判定单元确定当前像素附近的条带步数,通过 自适应滤波器权重判定单元,当前像素值和先前输出值之间的差,由自适应滤波器权重判定单元选择基于条带数的滤波器权重,当前像素值与 先前输出值和检测到的条带噪声,并且通过递归滤波器根据所选滤波器权重对当前像素值进行滤波。

    Accounting for inter-carrier interference in determining a response of an OFDM communication channel
    74.
    发明授权
    Accounting for inter-carrier interference in determining a response of an OFDM communication channel 有权
    在确定OFDM通信信道的响应时考虑载波间干扰

    公开(公告)号:US09020050B2

    公开(公告)日:2015-04-28

    申请号:US12963569

    申请日:2010-12-08

    Abstract: In an embodiment, a channel estimator includes first and second stages. The first stage is operable to generate a respective one-dimensional array of first channel-estimation coefficients for each communication path of a communication channel, and the second stage is operable to generate a multi-dimensional array of second channel-estimation coefficients in response to the first channel-estimation coefficients. For example, such a channel estimator may estimate the response of a channel over which propagates an orthogonal-frequency-division-multiplexed (OFDM) signal that suffers from inter-carrier interference (ICI) due to Doppler spread. Such a channel estimator may estimate the channel response more efficiently, and with a simpler algorithm, than conventional channel estimators. Furthermore, such a channel estimator may be able to dynamically account for changes in the number of communication paths that compose the channel, for changes in the delays of these paths, or the portions of the transmitted symbol energy carried by these paths.

    Abstract translation: 在一个实施例中,信道估计器包括第一和第二阶段。 第一级可操作以产生用于通信信道的每个通信路径的第一信道估计系数的相应一维阵列,并且第二级可操作以响应于第二信道估计系数生成第二信道估计系数的多维阵列 第一个信道估计系数。 例如,这样的信道估计器可以估计传播由于多普勒扩展而遭受载波间干扰(ICI)的正交频分复用(OFDM)信号的信道的响应。 这样的信道估计器可以比传统的信道估计器更有效地估计信道响应,并且使用更简单的算法来估计信道响应。 此外,这样的信道估计器可能能够动态地考虑构成信道的通信路径的数量的变化,这些路径的延迟的改变或由这些路径携带的所发送的符号能量的部分的变化。

    Sample and hold capacitance to digital converter
    75.
    发明授权
    Sample and hold capacitance to digital converter 有权
    数字转换器的采样和保持电容

    公开(公告)号:US09019229B2

    公开(公告)日:2015-04-28

    申请号:US12732581

    申请日:2010-03-26

    Abstract: A circuit for converting charge measured from a touch screen into a digital signal can include a sample and hold circuit. The sample and hold circuit can sample and integrate a charge from a capacitive sense matrix, and hold a voltage signal representing the measured charge. A sigma delta converter can convert the voltage into a digital value.

    Abstract translation: 用于将从触摸屏测量的电荷转换为数字信号的电路可以包括采样和保持电路。 采样和保持电路可以对来自电容检测矩阵的电荷进行采样和积分,并保持表示测量电荷的电压信号。 Σ-Δ转换器可将电压转换为数字值。

    Spare cell strategy using flip-flop cells
    78.
    发明授权
    Spare cell strategy using flip-flop cells 有权
    使用触发器单元的备用电池策略

    公开(公告)号:US08928381B1

    公开(公告)日:2015-01-06

    申请号:US13940713

    申请日:2013-07-12

    Inventor: Beng-Heng Goh

    CPC classification number: H03K3/037 G01R31/318541

    Abstract: Configurable flip-flop cells for use in scan chain configurations include one or more multiplexers, a flip-flop, and one or more logic gates. The logic gates are configurable, through modification of different metallization or semiconductor layers, to operate as spare gates or to disable flip-flop cell outputs based selection signal switching between scan shift and capture mode. When disabling flip-flop cell outputs, the logic gates are configured to receive both a test signal and a data input signal and select one of the two to pass to the flip-flop based on the selection signal. When used as spare gates, the logic gates receive external inputs and provide spare gate outputs to circuitry on an integrated circuit that is external to the flip-flop cells.

    Abstract translation: 用于扫描链配置的可配置触发器单元包括一个或多个多路复用器,触发器和一个或多个逻辑门。 逻辑门可通过不同金属化或半导体层的修改来配置,作为备用栅极运行,或禁止基于触发器单元输出的选择信号在扫描移位和捕捉模式之间切换。 当禁止触发器单元输出时,逻辑门被配置为接收测试信号和数据输入信号,并且基于选择信号选择两者之一传递到触发器。 当用作备用栅极时,逻辑门接收外部输入,并为触发器单元外部的集成电路上的电路提供备用栅极输出。

    Methods of using a conductive composite material
    79.
    发明授权
    Methods of using a conductive composite material 有权
    使用导电复合材料的方法

    公开(公告)号:US08907692B2

    公开(公告)日:2014-12-09

    申请号:US12641793

    申请日:2009-12-18

    CPC classification number: G01R31/2818

    Abstract: Composite materials having conductive properties are described for use in testing circuits and in manufacturing electrical switches. The composite materials described, when in an unstressed state, generally behave as insulators. However, when sufficient mechanical pressure is applied to portions of the composite materials, the portions to which the mechanical pressure is applied become increasingly conductive. Methods for testing a PCB using composite material switches are also disclosed. A sheet that includes a composite material may be used to test electrical functionality of various regions on a PCB by way of local pressure application. The sheet may be easily applied to and removed from the PCB. Additionally, in forming an electrical switch, a voltage applied to one or more actuating elements may be used to provide mechanical pressure to a composite material that is disposed between two conductive members. Application of a sufficient voltage allows for portions of the composite material to transition from an insulator to a conductor for providing an electrical pathway.

    Abstract translation: 描述了具有导电特性的复合材料用于测试电路和制造电气开关。 当处于无应力状态时,描述的复合材料通常表现为绝缘体。 然而,当对复合材料的部分施加足够的机械压力时,施加机械压力的部分变得越来越导电。 还公开了使用复合材料开关测试PCB的方法。 包括复合材料的片材可以用于通过局部压力应用来测试PCB上各个区域的电学功能。 该片材可以容易地应用于PCB并从PCB上移除。 另外,在形成电气开关时,施加到一个或多个致动元件的电压可以用于向布置在两个导电构件之间的复合材料提供机械压力。 施加足够的电压允许复合材料的部分从绝缘体转移到导体以提供电路径。

    Converting samples of a signal at a sample rate into samples of another signal at another sample rate
    80.
    发明授权
    Converting samples of a signal at a sample rate into samples of another signal at another sample rate 有权
    将采样速率的信号样本转换为另一个采样率的另一个信号的样本

    公开(公告)号:US08874175B2

    公开(公告)日:2014-10-28

    申请号:US13672326

    申请日:2012-11-08

    CPC classification number: H04B17/13 H04L25/05

    Abstract: In an embodiment, an apparatus includes a determiner, converter, adapter, and modifier. The determiner is configured to generate a representation of a difference between a first frequency at which a first signal is sampled and a second frequency at which a second signal is sampled, and the converter is configured to generate a second sample of the first signal at a second time in response to the representation and a first sample of the first signal at a first time. The adapter is configured to generate a sample of a modifier signal in response to the second sample of the first signal, and the modifier is configured to generate a modified sample of the second signal in response to a sample of the second signal and the sample of the modifier signal. For example, such an apparatus may be able to reduce the magnitude of an echo signal in a system having an audio pickup (e.g., a microphone) near an audio output (e.g., a speaker).

    Abstract translation: 在一个实施例中,装置包括确定器,转换器,适配器和修改器。 确定器被配置为产生第一信号被采样的第一频率与第二信号被采样的第二频率之间的差异的表示,并且转换器被配置为在第一频率处产生第一信号的第二采样 第二次响应于第一次的表示和第一个信号的第一个样本。 适配器被配置为响应于第一信号的第二样本产生修改器信号的样本,并且修改器被配置为响应于第二信号的样本和第二信号的样本而生成第二信号的修改样本 修改信号。 例如,这样的装置可能能够减小在音频输出(例如扬声器)附近具有音频拾取器(例如,麦克风)的系统中的回波信号的幅度。

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