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    Method for detection of pilot tones
    84.
    发明授权
    Method for detection of pilot tones 有权
    检测导频音的方法

    公开(公告)号：US06396883B2

    公开(公告)日：2002-05-28

    申请号：US09930411

    申请日：2001-08-15

    Applicant: Bin Yang ,  Ralf Hartmann

    Inventor： Bin Yang ,  Ralf Hartmann

    IPC: H04L2706

    CPC classification number: H04B1/76 ,  H04L25/061 ,  H04L27/22

    Abstract: A method identifies a pulse sequence having known values and a known length in a signal. According to this method, the mathematical sign of the phase difference between samples of the signal is used to estimate whether the transmitted pulse is a 1 or a 0. Undersampling, carried out to a selectable extent, produces a relatively insensitive response to adjacent channel interference. The sum of the pulses in a window which is proportional to the length of the pulse sequence and to the extent of the undersampling is determined, with the pulse sequence being regarded as being identified at the point in time at which the sum of the pulses in this search window exceeds a threshold value.

    Abstract translation: 方法识别在信号中具有已知值和已知长度的脉冲序列。 根据该方法，使用信号样本之间的相位差的数学符号来估计所发送的脉冲是1或是0。在可选范围内进行的取样对相邻信道干扰产生相对不敏感的响应 。 确定窗口中与脉冲序列的长度成比例的脉冲与欠采样的范围之间的脉冲之和，其中脉冲序列被认为是在时间上的脉冲之和 该搜索窗口超过阈值。

    Electrical impedance detecting device of portable electrical impedance imaging system and detecting method thereof
    89.
    发明申请
    Electrical impedance detecting device of portable electrical impedance imaging system and detecting method thereof 有权
    便携式电阻抗成像系统的电阻抗检测装置及其检测方法

    公开(公告)号：US20140188417A1

    公开(公告)日：2014-07-03

    申请号：US13877317

    申请日：2011-10-13

    Applicant: Xiuzhen Dong ,  Xuyang Huo ,  Fusheng You ,  Xuetao Shi ,  Feng Fu ,  Ruigang Liu ,  Zhenyu Ji ,  Canhua Xu ,  Bin Yang ,  Min Yang ,  Jiaxue Qi ,  Wen Zhang ,  Nan Wang

    Inventor： Xiuzhen Dong ,  Xuyang Huo ,  Fusheng You ,  Xuetao Shi ,  Feng Fu ,  Ruigang Liu ,  Zhenyu Ji ,  Canhua Xu ,  Bin Yang ,  Min Yang ,  Jiaxue Qi ,  Wen Zhang ,  Nan Wang

    IPC: G01R27/02

    CPC classification number: G01R27/02 ,  A61B5/053 ,  A61B5/0536 ,  A61B5/7225 ,  G01R27/14

    Abstract: An electrical impedance detecting device of a portable electrical impedance imaging system by utilizing a theory of sending excitation signal and detecting response signal and a method thereof, wherein the excitation signal is a constant square wave excitation current signal, the response voltage signal on a target is transformed to a square wave signal with appropriate amplitudes by buffering, amplifying, RC filtering and differential amplifying circuits, and then is transformed to a digital signal at a proper time by an analog-to-digital converter. The response voltage signal is sampled once when at high level and once when at low level for every circle of the square wave signal by the ADC, and a sample V1 and a sample V2 are obtained respectively, difference of the sample V1 and the sample V2 is taken as a detecting result for one circle. An average value of the detecting result from a plurality of circles may be taken as a final result. Information of electrical impedance is illustrated by the final result because the excitation current signal is constant.

    Abstract translation: 一种通过利用发送激励信号和检测响应信号的理论的便携式电阻抗成像系统的电阻抗检测装置及其方法，其中激励信号是恒定方波激励电流信号，目标上的响应电压信号是 通过缓冲，放大，RC滤波和差分放大电路转换成具有适当幅度的方波信号，然后通过模拟 - 数字转换器在适当的时间转换为数字信号。 响应电压信号在高电平时被采样一次，一旦在ADC的每个圆波信号的低电平处被采样一次，并且分别获得样本V1和样本V2，样本V1和样本V2的差 作为一个圆的检测结果。 可以将来自多个圆的检测结果的平均值作为最终结果。 由于激励电流信号是恒定的，所以最终结果说明了电阻抗的信息。

    METHOD AND APPARATUS FOR GENERATING MULTI-BIT DEPTH HALFTONE AMPLITUDE-MODULATION DOTS
    90.
    发明申请
    METHOD AND APPARATUS FOR GENERATING MULTI-BIT DEPTH HALFTONE AMPLITUDE-MODULATION DOTS 有权
    用于产生多位深度HALFTONE AMPLITUDE-MODULATION DOTS的方法和装置

    公开(公告)号：US20140132992A1

    公开(公告)日：2014-05-15

    申请号：US14128351

    申请日：2012-05-18

    Applicant: Haifeng Li ,  Bin Yang

    Inventor： Haifeng Li ,  Bin Yang

    IPC: G06K15/02

    CPC classification number: G06K15/1881 ,  H04N1/40087 ,  H04N1/4055

    Abstract: The present application discloses a method and an apparatus for generating multi-bit depth halftone amplitude-modulation dots. The method may comprise: scanning an input image to obtain a value of a current pixel Pxy, where x represents a lateral position index of the current pixel, and y represents a vertical position index of the current pixel; obtaining gj from a preset multi-bit depth threshold matrix G by starting with i=0, and determining if Pxy

    Abstract translation: 本申请公开了一种用于产生多位深度半色调幅度调制点的方法和装置。 该方法可以包括：扫描输入图像以获得当前像素Pxy的值，其中x表示当前像素的横向位置索引，y表示当前像素的垂直位置索引; 通过以i = 0开始从预设的多位深度阈值矩阵G获得gj，并且确定Pxy

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