Video data encoding apparatus and method for removing a continuous repeat field from the video data
    81.
    发明授权
    Video data encoding apparatus and method for removing a continuous repeat field from the video data 有权
    用于从视频数据中去除连​​续重复字段的视频数据编码装置和方法

    公开(公告)号:US07224734B2

    公开(公告)日:2007-05-29

    申请号:US10423775

    申请日:2003-04-25

    IPC分类号: H04N7/12

    摘要: A pattern analyzing portion analyzes a pattern of a detected repeat field and determines whether or not the pattern of the repeat field is continuous. An inverse pull-down controlling portion controls a memory to read video data in such a manner that the repeat field detected by a comparator is removed from input video data in a period that the pattern of the repeat field is continuous. The inverse pull-down controlling portion controls the memory to read video data in such a manner that a repeat field detected by the comparator is not removed from the input video data in a period that the pattern of the repeat field is discontinuous. In other words, an inverse 2:3 pull-down process is controlled corresponding to the continuity of a pattern of a repeat field. In addition, it is determined whether an input original material is a progressive-scanned video material or an interlace-scanned video material corresponding to the continuity of the pattern of the repetitive material.

    摘要翻译: 图案分析部分分析检测到的重复场的图案,并确定重复场的图案是否是连续的。 反向下拉控制部分控制存储器以这样的方式读取视频数据,使得在重复字段的模式是连续的时段内,由比较器检测到的重复字段从输入视频数据中去除。 反向下拉控制部分控制存储器以这样的方式读取视频数据,使得在重复场的图案不连续的时段内,比较器检测到的重复场不会从输入视频数据中移除。 换句话说,对应于重复场的模式的连续性来控制反向2:3下拉过程。 此外,确定输入的原始材料是逐行扫描的视频材料还是对应于重复材料的图案的连续性的隔行扫描的视频材料。

    Ultrasonograph
    82.
    发明授权
    Ultrasonograph 有权
    超声波检查

    公开(公告)号:US07125384B2

    公开(公告)日:2006-10-24

    申请号:US10504564

    申请日:2003-02-18

    IPC分类号: A61B8/00 G01N29/00

    摘要: An ultrasonic diagnostic apparatus is disclosed which can reduce the device amount of a receiving circuit, while obtaining the shape of an excellent received beam. In this ultrasonic diagnostic apparatus, a plurality of transducer elements are arrayed and used as an ultrasonic probe, and the transducer elements are driven by a plurality of transmission driving circuit. The signal received by the transducer element is distributed to any of a plurality of input terminals of a cross point switch beam former. The received signals of the three transducer elements near the center of the aperture of the ultrasonic probe are added and inputted to one terminal of a beam former. The second, fourth and sixth transducer elements at the end of the aperture are not connected to the beam former. The signals received by the transducer elements are delay-added by the beam former. The delay precision can be improved, and the beam shape can be made sharper, thereby improving the image quality of the ultrasonic image.

    摘要翻译: 公开了一种超声波诊断装置,其可以在获得良好的接收波束的形状的同时,减小接收电路的装置量。 在该超声波诊断装置中,多个换能器元件被排列并用作超声波探头,并且换能器元件由多个传动驱动电路驱动。 由换能器元件接收的信号被分配到交叉点开关束形成器的多个输入端中的任何一个。 在超声波探头的孔径的中心附近的三个换能器元件的接收信号被添加并输入到波束形成器的一个端子。 在孔的端部处的第二,第四和第六换能器元件不连接到束形成器。 由换能器元件接收的信号由波束成形器延迟。 可以提高延迟精度,并且可以使光束形状更清晰,从而提高超声波图像的图像质量。

    Filter processing system for the output signal of optical time domain reflectometer in the chromatic dispersion distribution measurement apparatus
    86.
    发明授权
    Filter processing system for the output signal of optical time domain reflectometer in the chromatic dispersion distribution measurement apparatus 失效
    用于色散分布测量装置中光时域反射计输出信号的滤波处理系统

    公开(公告)号:US06882410B2

    公开(公告)日:2005-04-19

    申请号:US10346005

    申请日:2003-01-16

    IPC分类号: G01M11/00 G01M11/02 G01N21/00

    CPC分类号: G01M11/3127 G01M11/3163

    摘要: A filter processing system making it possible to be able to set a frequency pass-band automatically and to provide the optimum filter to an input signal. A filter processing method of an output signal of an Optical Time Domain Reflectometer (OTDR) in a chromatic dispersion distribution measuring apparatus is disclosed. The filter processing method includes establishing measuring-condition parameters, generating an ideal signal waveform based on previously established chromatic dispersion values and the measuring-condition parameters, and providing correlation results between the ideal signal waveform and a filter input signal. The method also includes comparing the correlation results to a threshold value to generate a minimum chromatic dispersion value and a maximum chromatic dispersion value, and performing filter processing for the output of the OTDR based on the minimum chromatic dispersion value and the maximum chromatic dispersion value.

    摘要翻译: 一种滤波处理系统,使得能够自动设置频带,并为输入信号提供最佳滤波。 公开了一种色散分布测量装置中的光时域反射计(OTDR)的输出信号的滤波处理方法。 滤波处理方法包括建立测量条件参数,基于先前建立的色散值和测量条件参数产生理想信号波形,并提供理想信号波形和滤波器输入信号之间的相关结果。 该方法还包括将相关结果与阈值进行比较以产生最小色散值和最大色散值,并且基于最小色散值和最大色散值对OTDR的输出执行滤波处理。

    Digital blocks television tuner having simple baseband signal processing portion
    87.
    发明授权
    Digital blocks television tuner having simple baseband signal processing portion 失效
    具有简单基带信号处理部分的数字电视调谐器

    公开(公告)号:US06559899B1

    公开(公告)日:2003-05-06

    申请号:US09598966

    申请日:2000-06-21

    IPC分类号: H04N550

    摘要: A digital television tuner is realized in which the construction of a baseband signal processing portion is simple, it is difficult for a local oscillation signal to leak to the input end side, and in which image interference is suppressed. The digital television tuner includes a frequency conversion device for converting the frequency of a digital television signal of a channel to be received from among channels arranged in a predetermined frequency band into the highest frequency of the frequency band or higher; two mixing devices for outputting two baseband signals whose phases are mutually orthogonal to each other by demodulating the frequency-converted digital television signal; a local oscillation device for inputting local oscillation signals whose phases are mutually orthogonal to each other to the two mixing devices; and an addition device for adding together the two baseband signals, wherein the frequency of the local oscillation signals is set to be the same frequency as the frequency at the end of the band in the channel of the frequency-converted digital television signal, and one of the baseband signals is converted into the same phase as that of the other, after which the signals are input to the addition device.

    摘要翻译: 实现数字电视调谐器,其中基带信号处理部分的构造简单,本地振荡信号难以泄漏到输入端侧,并且抑制了图像干扰。 数字电视调谐器包括:频率转换装置,用于将布置在预定频带中的频道中的要接收的频道的数字电视信号的频率转换为频带的最高频率; 两个混合装置,用于通过解调频率转换的数字电视信号来输出相位彼此相互正交的两个基带信号; 本地振荡装置,用于输入其相位彼此相互正交的本地振荡信号到两个混合装置; 以及用于将两个基带信号相加在一起的加法装置,其中本地振荡信号的频率被设置为与频率转换的数字电视信号的信道中的频带末端的频率相同的频率,一个 的基带信号被转换成与另一个基带信号相同的相位,之后信号被输入到加法装置。

    Ultrasonic diagnostic imaging system
    88.
    发明授权
    Ultrasonic diagnostic imaging system 失效
    超声诊断成像系统

    公开(公告)号:US06344023B1

    公开(公告)日:2002-02-05

    申请号:US09699458

    申请日:2000-10-31

    IPC分类号: A61B800

    摘要: A nonlinear distortion-based ultrasonic diagnostic imaging system displays a raised-resolution video of tissue inside a body at an increased frame rate. Using a two-pulse technique, a transducer driver supplies narrower-width and wider-width driving pulses to a transducer, which transmits weaker and stronger ultrasonic wave pulses alternately while putting the same intervals between adjacent ultrasonic wave pulses to obtain a weaker echo and a stronger echo. An equalizer equalizes each weaker echo to the stronger echo into an equalized weaker echo. An interpolator calculates an interpolation value between the equalized weaker echo and an equalized previous weaker echo obtained from a previous weaker echo. For each weaker ultrasonic wave pulse, a detector finds a difference between the interpolation value and a stronger echo obtained between the weaker echo and the previous weaker echo. The equalization and interpolation enables high-speed scanning, which has not been achieved with two-pulse technique. Thus, a raised-resolution video signal of the tissue is formed at an increased frame rate on the basis of the difference signal and a scan control signal which is also used in the transducer.

    摘要翻译: 基于非线性失真的超声诊断成像系统以增加的帧速率显示身体内的组织的升高分辨率视频。 使用双脉冲技术,换能器驱动器向传感器提供较窄宽度和宽宽度的驱动脉冲,其在相邻超声波脉冲之间施加相同的间隔以交替地传递较弱和更强的超声波脉冲以获得较弱的回波和 更强的回声。 均衡器将每个较弱的回波与较强的回波均衡,达到平衡较弱的回波。 内插器计算均衡的较弱回波和从先前更弱的回波获得的均衡的先前更弱的回波之间的内插值。 对于每个较弱的超声波脉冲,检测器发现内插值与较弱回波和先前较弱回波之间获得的较强回波之间的差异。 均衡和内插可实现高速扫描,这是双脉冲技术尚未实现的。 因此,基于差分信号和在换能器中也使用的扫描控制信号,以增加的帧速率形成组织的升高分辨率的视频信号。

    Data compression device that switches between intra-frame coding and inter-frame coding
    89.
    发明授权
    Data compression device that switches between intra-frame coding and inter-frame coding 失效
    在帧内编码和帧间编码之间进行切换的数据压缩装置

    公开(公告)号:US06282242B1

    公开(公告)日:2001-08-28

    申请号:US09059676

    申请日:1998-04-13

    IPC分类号: H04N718

    摘要: A data compression device for correctly allotting limited amounts of data and performing high image quality compression of video data by means of a method suitable for an authoring device such as the MPEG (Moving Picture Experts Group) technique so that when the desired amount of data for compression is set based on the data quantity detected by the previous data compression processing, the target bit quantity is set in specified block units, allotted to separate frames and then corrected by means of the individual block structure.

    摘要翻译: 一种用于通过适合于诸如MPEG(运动图像专家组)技术的创作设备的方法来正确地分配有限数量的数据并执行视频数据的高图像质量压缩的数据压缩装置,使得当期望的数据量 基于由先前数据压缩处理检测到的数据量来设置压缩,将目标比特量设置为指定的块单位,分配给分离的帧,然后通过各个块结构进行校正。