Video signal processing apparatus
    2.
    发明授权
    Video signal processing apparatus 失效
    视频信号处理装置

    公开(公告)号:US06441860B1

    公开(公告)日:2002-08-27

    申请号:US08852388

    申请日:1997-05-07

    IPC分类号: H04N701

    CPC分类号: H04N5/46

    摘要: A video signal processing apparatus which can process video signals with different formats simply by switching between programs for processing video signals. Different system clock signals are sent to the input and output processes by employing a programmable signal processor 4, input synchronizing signal processor 8, programmable signal processor 6 and output synchronizing pulse processor 9. A method for processing the video signal can be flexibly changed simply by switching between signal processing programs for programmable signal processors. In addition, the use of a memory 5 enables the signal, which is processed using the system clock signal in the input process, to be processed using the system clock signal in the output process. The present invention thus allows the processing of video signals with many different signal formats. The design of efficient circuitry will greatly reduce costs and production processes.

    摘要翻译: 一种视频信号处理装置,其可以通过在用于处理视频信号的程序之间切换来处理具有不同格式的视频信号 通过采用可编程信号处理器4,输入同步信号处理器8,可编程信号处理器6和输出同步脉冲处理器9,将不同的系统时钟信号发送到输入和输出处理。用于处理视频信号的方法可以简单地通过 在可编程信号处理器的信号处理程序之间切换。 此外,使用存储器5使得能够使用输出处理中的系统时钟信号来处理在输入处理中使用系统时钟信号处理的信号。 因此,本发明允许处理具有许多不同信号格式的视频信号。 高效电路的设计将大大降低成本和生产流程。

    Video signal decoding apparatus for use with varying helper signal levels
    3.
    发明授权
    Video signal decoding apparatus for use with varying helper signal levels 失效
    用于改变辅助信号电平的视频信号解码装置

    公开(公告)号:US5684540A

    公开(公告)日:1997-11-04

    申请号:US510906

    申请日:1995-08-03

    IPC分类号: H04N7/00 H04N11/24 H04N11/20

    CPC分类号: H04N7/007 H04N11/002

    摘要: A video signal is reproduced by adjusting the amplitude of a horizontal high frequency signal, a vertical high frequency signal and a vertical temporal high frequency signal. Helper signals can be demodulated even if the helper signal levels vary due to receiving conditions. The number of circuits can be reduced by using a common circuit for amplitude adjustment of the helper signal and for automatic color control of a chrominance signal.

    摘要翻译: 通过调整水平高频信号,垂直高频信号和垂直时间高频信号的振幅来再现视频信号。 即使辅助信号电平由于接收条件而变化,也可以解调辅助信号。 可以通过使用用于辅助信号的幅度调整的公共电路和色度信号的自动色彩控制来减少电路的数量。

    Signal transmission system
    4.
    发明授权
    Signal transmission system 有权
    信号传输系统

    公开(公告)号:US07394854B2

    公开(公告)日:2008-07-01

    申请号:US10088468

    申请日:2001-07-23

    摘要: A signal transmission system: that includes a signal transmission unit (101) that includes a MPEG decoder (102), which receives digital broadcasting and outputs a luminance signal Y and two color difference signals PB/PR, and a transmission path encoding circuit (103), which encodes the YPBPR outputted from the MPEG decoder (102) into signals in the forms suited to a transmission path and transmits the encoded signals; and a signal reception unit (104) that includes a transmission path decoding circuit (105), which receives the encoded YPBPR and decodes them, a Y processing circuit (106), which processes the decoded luminance signal Y, a chrominance processing circuit (107), which processes the respective decoded color difference signals PB/PR, a signal conversion circuit (108), which converts the YPBPR outputted from the Y processing circuit (106) and the chrominance processing circuit (107) into RGB signals, and a display device (108) which displays the RGB signals.

    摘要翻译: 一种信号传输系统,包括:信号传输单元(101),包括MPEG解码器(102),其接收数字广播并输出亮度信号Y和两个色差信号P SUB B / 和传送路径编码电路(103),其将从MPEG解码器(102)输出的YP SUB B R SUB编码为信号 适合于传输路径并发送编码信号的形式; 以及信号接收单元(104),其包括传输路径解码电路(105),该传输路径解码电路(105)接收编码的YP< B> P< R>并对其进行解码,Y处理电路 106),其处理解码的亮度信号Y,处理各个解码的色差信号P SUB B / P SUB R的色度处理电路(107),信号转换 电路(108)将从Y处理电路(106)和色度处理电路(107)输出的YP B R SUB转换成RGB信号,显示 显示RGB信号的装置(108)。

    Apparatus for correcting vertical contours
    5.
    发明授权
    Apparatus for correcting vertical contours 失效
    用于校正垂直轮廓的装置

    公开(公告)号:US06424383B1

    公开(公告)日:2002-07-23

    申请号:US09284876

    申请日:1999-04-22

    IPC分类号: H04N521

    CPC分类号: H04N5/208

    摘要: An object is to provide a vertical contour correcting device for a video signal which reduces noise without deteriorating effect of the entire contour correction. A vertical contour correcting device (VCP1) which corrects vertical contour components (S1v, S1v′) of a video signal (S1) with a given quantity of correction (K) to enhance the vertical contour (Ev) of the video signal (S1) comprises a vertical contour component extracting device (3) for detecting said vertical contour components (S1v, S1v′) from said video signal (S1), a vertical contour component correlation detector (3, 29, 8c, 8d, 4) for detecting correlation between horizontally adjacent vertical contour components (Sb, Sb′, Sb′′) from said detected vertical contour components (S1v, S1v′), and a controller (5) for determining said quantity of correction (K) on the basis of said detected correlation (Sj1), thereby varying the quantity of correction (K) in accordance with the correlation (Sj1).

    摘要翻译: 一种垂直轮廓校正装置(VCP1),用于校正视频信号的垂直轮廓分量(S1v,S1v')(垂直轮廓校正装置) S1)具有用于增强视频信号(S1)的垂直轮廓(Ev)的给定量的校正(K)包括垂直轮廓分量提取装置(3),用于从所述垂直轮廓分量(S1v,S1v')检测所述垂直轮廓分量 视频信号(S1),用于检测来自所检测的垂直轮廓分量(S1v)的水平相邻垂直轮廓分量(Sb,Sb',Sb“)之间的相关性的垂直轮廓分量相关检测器(3,29,8c,8d,4) ,S1v'),以及控制器(5),用于根据所述检测到的相关(Sj1)确定所述校正量(K),从而根据相关(Sj1)改变校正量(K)。

    Video signal processing device
    6.
    发明授权
    Video signal processing device 失效
    视频信号处理装置

    公开(公告)号:US06243141B1

    公开(公告)日:2001-06-05

    申请号:US09070745

    申请日:1998-05-01

    IPC分类号: H04N327

    CPC分类号: H04N5/46

    摘要: A video signal processing device comprising an operating element array for processing video signals according to commands given from the outside, memories for temporarily storing the video signals according to commands given from the outside, and a network 3 for connecting the operating element array and the storage units according to commands given from the outside, thereby making it possible to switch ways of processing digitized video signals according to commands from the outside.

    摘要翻译: 一种视频信号处理装置,包括用于根据从外部给出的命令来处理视频信号的操作元件阵列,用于根据从外部给出的命令临时存储视频信号的存储器,以及用于连接操作元件阵列和存储器 单元根据从外部给出的命令,从而可以根据来自外部的命令来切换处理数字化视频信号的方式。

    Video signal compression apparatus for horizontal compression of a video
signal
    7.
    发明授权
    Video signal compression apparatus for horizontal compression of a video signal 失效
    用于视频信号的水平压缩的视频信号压缩装置

    公开(公告)号:US5715010A

    公开(公告)日:1998-02-03

    申请号:US725075

    申请日:1996-10-02

    IPC分类号: H04N5/14 H04N5/44 H04N7/01

    摘要: A video signal compression apparatus extracts a specific value written in a read only memory at every system clock pulse. The specific value can be varied at every clock pulse. Therefore, for example, only the center part of a picture can be horizontally compressed. A FIFO memory may be used. It is possible to select a mode with a fixed compression ratio or a mode in which a compression ratio varies at every clock pulse. Further, the fixed compression ratio can be set from the outside. Display position of the picture can also be changed.

    摘要翻译: 视频信号压缩装置以每个系统时钟脉冲提取在只读存储器中写入的特定值。 每个时钟脉冲可以改变具体值。 因此,例如只能将图像的中央部分水平地压缩。 可以使用FIFO存储器。 可以选择具有固定压缩比的模式或压缩比在每个时钟脉冲下变化的模式。 此外,可以从外部设定固定压缩比。 图片的显示位置也可以更改。

    Image processing device
    8.
    发明授权
    Image processing device 失效
    图像处理装置

    公开(公告)号:US08115867B2

    公开(公告)日:2012-02-14

    申请号:US11863673

    申请日:2007-09-28

    摘要: The present invention provides an image processing device that converts an interlace image signal into a progressive signal so as not to cause degradation of image quality in edge parts of letters or the like, when performing an IP conversion with respect to an image that is mixed with an OSD such as a caption and a telop. The image processing device includes: an OSD mix part that mixes an on-screen display with an input interlace image signal; a motion detecting part that detects a motion by comparing pixel data between different fields; and an interpolation pixel generating part that generates a new pixel between lines of the interlace image signal by interpolating calculation with an interpolation method that depends on an OSD mix ratio of the OSD mix part and a result of the motion detection by the motion detecting part.

    摘要翻译: 本发明提供了一种图像处理装置,其将隔行扫描图像信号转换为逐行信号,以便在对与图像混合的图像进行IP转换时不会导致字母边缘部分的图像质量劣化 诸如标题和字幕的OSD。 图像处理装置包括:OSD混合部分,其将屏幕显示与输入交错图像信号混合; 运动检测部,其通过比较不同场之间的像素数据来检测运动; 以及内插像素生成部,其通过使用依赖于OSD混合部的OSD混合比的内插法和运动检测部的运动检测结果进行内插计算来生成隔行扫描图像信号的行之间的新像素。

    Digital interface decode receiver apparatus
    9.
    发明授权
    Digital interface decode receiver apparatus 有权
    数字接口解码接收机

    公开(公告)号:US07596188B2

    公开(公告)日:2009-09-29

    申请号:US10548066

    申请日:2004-05-27

    IPC分类号: H03K9/00

    摘要: A power-down determination circuit calculates the horizontal frequency and vertical frequency, respectively, employing a clock signal obtained from a multiplier circuit and horizontal synchronization signal and vertical synchronization signal obtained from a TMDS decode circuit. The power-down determination circuit then determines whether an input digital signal does or does not have a decodable video format by comparing the calculated horizontal frequency and vertical frequency with horizontal frequencies and vertical frequencies stored beforehand, for output of a power-down control signal indicative of the determination. Thus, in the case where the input digital signal does not have a decodable format, the power-down control signal controls a video/audio processing circuit to enter a power-down mode.

    摘要翻译: 断电确定电路分别使用从乘法电路获得的时钟信号和从TMDS解码电路获得的水平同步信号和垂直同步信号来计算水平频率和垂直频率。 断电确定电路然后通过将计算的水平频率和垂直频率与预先存储的水平频率和垂直频率进行比较来确定输入数字信号是否具有可解码的视频格式,用于输出指示的掉电控制信号 的决心。 因此,在输入数字信号不具有可解码格式的情况下,掉电控制信号控制视频/音频处理电路进入掉电模式。

    Signal transmitter and signal receiver
    10.
    发明授权
    Signal transmitter and signal receiver 有权
    信号发射机和信号接收机

    公开(公告)号:US07339959B2

    公开(公告)日:2008-03-04

    申请号:US10149309

    申请日:2001-10-12

    IPC分类号: H04J3/04

    摘要: A signal transmitter and a signal receiver comprises a time base compression part (101) for compressing an audio signal on a time base to output the compressed signal as a time base compressed audio signal and a multiplexing part (102) for multiplexing a video signal, a control signal, and the time base compressed audio signal to output the multiplexed signal to the external as a video/audio control multiplexed signal. The thus constituted signal transmitter and the signal receiver realize a signal transmission system for multiplexing and transmitting the video signal, audio signal, and control signal, for consequently transmitting high-quality diverse digital audio signals without conversion into an analog signal, and for transmission at high speed with minimal error.

    摘要翻译: 信号发送器和信号接收器包括:时基压缩部件(101),用于按时间压缩音频信号,以输出压缩信号作为时基压缩音频信号;以及复用部分(102),用于复用视频信号, 控制信号和时基压缩音频信号,以将多路复用信号作为视频/音频控制复用信号输出到外部。 由此构成的信号发送器和信号接收器实现用于复用和发送视频信号,音频信号和控制信号的信号传输系统,从而在不转换成模拟信号的情况下传输高质量的多种数字音频信号,并用于传输 高速度,最小误差。