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217 条记录 (耗时 0.019 秒)

    APPARATUS AND METHOD FOR TESTING SIGNAL CHANNELS OF DVR
    191.
    发明申请
    APPARATUS AND METHOD FOR TESTING SIGNAL CHANNELS OF DVR 失效
    DVR信号通道测试装置及方法

    公开(公告)号：US20110255843A1

    公开(公告)日：2011-10-20

    申请号：US12879016

    申请日：2010-09-10

    申请人： MING-YUAN HSU

    发明人： MING-YUAN HSU

    IPC分类号： H04N9/88

    CPC分类号： H04N5/76 ,  G11B27/36 ,  H04N21/4147 ,  H04N21/4355

    摘要： An apparatus and method can test multiple signal channels of a digital video recorder (DVR). Image data are obtained from a storage device and converted the image data to a video signal. The DVR sends the video signal to an image distributor, and generates a selection command to a controller for controlling the image distributor to select a signal channel to be tested. After the video signal is received from the DVR, the image distributor sends the video signal to the selected signal channel. An ID number of the selected signal channel is displayed on a display device when the DVR does not receive the video signal from the selected video channel.

    摘要翻译： 一种装置和方法可以测试数字录像机（DVR）的多个信号通道。 从存储装置获得图像数据，并将图像数据转换为视频信号。 DVR将视频信号发送给图像分配器，并向控制器生成选择命令，以控制图像分配器选择要测试的信号信道。 在从DVR接收到视频信号之后，图像分配器将视频信号发送到所选信号通道。 当DVR没有从所选择的视频频道接收到视频信号时，所选择的信道的ID号被显示在显示设备上。

    Signal processing device, reproducing device, signal processing method and program
    193.
    发明申请
    Signal processing device, reproducing device, signal processing method and program 失效
    信号处理装置，再现装置，信号处理方法和程序

    公开(公告)号：US20110033171A1

    公开(公告)日：2011-02-10

    申请号：US12804366

    申请日：2010-07-20

    申请人： Yoichi Hirota

    发明人： Yoichi Hirota

    IPC分类号： H04N9/88

    CPC分类号： H04N5/21 ,  G06T5/002 ,  H04N5/20

    摘要： There is provided a signal processing device which includes a change position detection unit that detects stepwise change positions of an n-bit quantized signal generated from an input signal; a density detection unit that calculates a value indicating a degree of density of the stepwise change positions detected by the change position detection unit; and a first low-frequency component extraction unit that extracts a desired low-frequency component from the input signal based on the value indicating the degree of density of the change positions calculated by the density detection unit.

    摘要翻译： 提供了一种信号处理装置，其包括：变化位置检测单元，其检测从输入信号生成的n位量化信号的逐步变化位置; 浓度检测单元，计算表示由变化位置检测单元检测出的逐级变化位置的浓度的值; 以及第一低频分量提取单元，其基于表示由浓度检测单元计算的变化位置的浓度的值，从输入信号中提取期望的低频分量。

    Image reproducing apparatus
    194.
    发明授权
    Image reproducing apparatus 失效
    图像再现装置

    公开(公告)号：US07881588B2

    公开(公告)日：2011-02-01

    申请号：US11453630

    申请日：2006-06-15

    申请人： Shigeki Mochizuki

    发明人： Shigeki Mochizuki

    IPC分类号： H04N9/88 ,  H04N5/63 ,  H04N5/94 ,  H04N11/20 ,  H04B1/00 ,  H04L1/18 ,  H04L27/06 ,  G06K9/46 ,  G11B5/02

    CPC分类号： H04N5/94 ,  G11B20/1876 ,  H04N5/782 ,  H04N9/8042

    摘要： A reproducing apparatus includes: a reproducing unit for reproducing, from a recording medium on which main image for normal reproduction data and specific reproduction image data made up of a plurality of blocks each including first data and second data are recorded, the main image data and the specific reproduction image data; a detecting unit for detecting an error in the first data and an error in the second data in the respective blocks of the specific reproduction image data that is reproduced by the reproducing unit, independently; and an interpolation processing unit for interpolating independently the first data and the second data in which the error is detected by the detecting unit, by selectively using a plurality of interpolating methods.

    摘要翻译： 一种再现装置，包括：再现单元，用于从记录有用于正常再现数据的主图像的记录介质和由包括第一数据和第二数据的多个块构成的特定再现图像数据的记录介质中再现主图像数据和 特定再现图像数据; 检测单元，用于独立地检测第一数据中的错误和由再现单元再现的特定再现图像数据的各个块中的第二数据中的错误; 以及插值处理单元，用于通过选择性地使用多种内插方法独立地内插由检测单元检测到错误的第一数据和第二数据。

    Method for noise suppression and noise-suppression circuit for video recorders
    195.
    发明授权
    Method for noise suppression and noise-suppression circuit for video recorders 失效
    视频录像机的噪声抑制和噪声抑制电路方法

    公开(公告)号：US5841934A

    公开(公告)日：1998-11-24

    申请号：US500946

    申请日：1996-03-08

    申请人： Ingo Chmielewski ,  Detlef Rath ,  Hans-Peter Arnold

    发明人： Ingo Chmielewski ,  Detlef Rath ,  Hans-Peter Arnold

    IPC分类号： H04N9/87 ,  H04N9/79 ,  H04N9/88

    CPC分类号： H04N9/7908

    摘要： A noise suppression apparatus and method for recorded luminance signals in which a level of an FM signal from the recording medium is detected, and the level of the recovered chroma signal is detected, the luminance signal is bandpass filtered and limited. A subtraction signal is generated based on the filtered and limited luminance signal and having magnitude based on the detected level of at least one of the chroma signal and the FM signal. The subtraction signal is subtracted from the luminance signal to generate a noise suppressed luminance signal. The passband of the bandpass filter may be varied based on at least one of the chroma signal and the FM signal.

    摘要翻译： PCT No.PCT / DE94 / 01456 Sec。 371日期：1996年3月8日 102（e）1996年3月8日PCT 1994年12月7日PCT PCT。 WO95 / 16326 PCT公开号 日期：1995年6月15日一种用于记录亮度信号的噪声抑制装置和方法，其中检测到来自记录介质的FM信号的电平，并且检测到恢复的色度信号的电平，亮度信号被带通滤波和限制。 基于滤波和有限的亮度信号产生减法信号，并且具有基于检测到的色度信号和FM信号中的至少一个的电平的幅度。 从亮度信号中减去减法信号，生成噪声抑制亮度信号。 带通滤波器的通带可以基于色度信号和FM信号中的至少一个来改变。

    Digital video error analyzer
    197.
    发明授权
    Digital video error analyzer 失效
    数字视频误差分析仪

    公开(公告)号：US5734422A

    公开(公告)日：1998-03-31

    申请号：US649913

    申请日：1996-05-17

    申请人： Steven D. Maurer ,  Robert W. Parish

    发明人： Steven D. Maurer ,  Robert W. Parish

    IPC分类号： H04N5/94 ,  G06T1/00 ,  H04N9/88 ,  H04N17/00

    CPC分类号： H04N17/004

    摘要： A serial digital video data analyzer combines a co-processor capable of handling the serial digital video data stream bit rate with a microprocessor operating at a slower bit rate. The co-processor includes a video feature detection/decision module that identifies specified errors or features from the serial digital video data stream and freezes the portion of the serial digital video data stream around such feature/error in a video data store. The co-processor may also insert a cursor into the serial digital video data stream prior to display on a monitor to indicate the position of indicated errors. The acquired serial digital video data is transferred to the microprocessor for an initial determination as to whether further processing is required. If further processing is required, the results are displayed as a report and the microprocessor interacts with the co-processor to acquire additional data needed for processing or to indicate that the processing is completed and the co-processor should continue its feature detection/decision process. In this way any desired analysis of the serial digital video data stream may be performed.

    摘要翻译： 串行数字视频数据分析仪将能够处理串行数字视频数据流比特率的协处理器与以较慢比特率工作的微处理器相结合。 协处理器包括视频特征检测/判定模块，其识别来自串行数字视频数据流的特定错误或特征，并且在视频数据存储器内围绕该特征/错误冻结串行数字视频数据流的部分。 协处理器还可以在监视器上显示之前将光标插入到串行数字视频数据流中，以指示指示的错误的位置。 所获取的串行数字视频数据被传送到微处理器以进行关于是否需要进一步处理的初始确定。 如果需要进一步处理，结果将显示为报告，微处理器与协处理器交互以获取处理所需的附加数据，或指示处理完成，协处理器应继续其特征检测/决策过程 。 以这种方式，可以执行串行数字视频数据流的任何期望的分析。

    Digital time base corrector using a memory with reduced memory capacity
    198.
    发明授权
    Digital time base corrector using a memory with reduced memory capacity 失效
    数字时基校正器使用具有减少内存容量的内存

    公开(公告)号：US5559812A

    公开(公告)日：1996-09-24

    申请号：US357736

    申请日：1994-12-16

    申请人： Hitoshi Otaki ,  Masahiro Nakajima

    发明人： Hitoshi Otaki ,  Masahiro Nakajima

    IPC分类号： H04N5/956 ,  H04N9/896 ,  H04N7/00 ,  H04N9/88 ,  H04N9/89 ,  H04N11/00

    CPC分类号： H04N9/896

    摘要： A digital time base corrector uses a memory with a reduced storage capacity, to reduce the cost. Absolute value data of an amplitude and polarity data of a burst signal in a color video signal are written into a memory every horizontal scan period. A signal in which a sync signal interval, a pedestal level interval, and a burst signal interval in the color video signal are eliminated is written as image data into the memory. The absolute value data, polarity data, and image data are read out from the memory. Burst signal data is reproduced on the basis of the absolute value data and polarity data. By inserting the burst signal data, sync signal data, and pedestal level data into the image data, a color video signal is reproduced.

    摘要翻译： 数字时基校正器使用具有降低的存储容量的存储器来降低成本。 彩色视频信号中的脉冲串信号的振幅和极性数据的绝对值数据在每个水平扫描周期被写入存储器。 将消除彩色视频信号中的同步信号间隔，基准电平间隔和突发信号间隔的信号作为图像数据写入存储器。 从存储器读出绝对值数据，极性数据和图像数据。 基于绝对值数据和极性数据再现突发信号数据。 通过将突发信号数据，同步信号数据和基准电平数据插入到图像数据中，再现彩色视频信号。

    Signal demodulation device
    199.
    发明授权
    Signal demodulation device 失效
    信号解调装置

    公开(公告)号：US5287197A

    公开(公告)日：1994-02-15

    申请号：US685673

    申请日：1991-04-16

    申请人： Koichi Sato

    发明人： Koichi Sato

    IPC分类号： H04L27/233 ,  H04N9/88 ,  H04N5/94

    CPC分类号： H04L27/2334

    摘要： A signal demodulation device includes a change point sensing circuit which senses a change point of an envelope of a DPSK signal, and a range setting circuit which generates a gate pulse corresponding to a period in which the DPSK signal cannot be changed. An output signal of the change point sensing circuit and the gate pulse are inputted to an AND gate so that a trigger prohibition signal is obtained. The trigger prohibition signal and the output signal of the change point sensing circuit are inputted to a NOR gate so that a trigger pulse corresponding only to a normal change point of the DPSK signal is generated, so that DPSK modulation data is obtained.

    摘要翻译： 信号解调装置包括感测DPSK信号的包络的变化点的变化点感测电路以及与DPSK信号不能改变的周期相对应地生成门脉冲的量程设定电路。 改变点检测电路和门脉冲的输出信号被输入到与门，从而获得触发禁止信号。 触发禁止信号和变化点感测电路的输出信号被输入到或非门，使得仅产生与DPSK信号的正常变化点对应的触发脉冲，从而获得DPSK调制数据。