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公开(公告)号：US5534934A
公开(公告)日：1996-07-09
申请号：US260576
申请日：1994-06-16
申请人： Kenji Katsumata , Shigeru Hirahata , Toshinori Murata , Haruki Takata , Shinobu Torikoshi , Takanori Eda , Kouichi Ishibashi
发明人： Kenji Katsumata , Shigeru Hirahata , Toshinori Murata , Haruki Takata , Shinobu Torikoshi , Takanori Eda , Kouichi Ishibashi
CPC分类号： H04N7/0122 , H04N3/27
摘要： To provide an image which is matched with an aspect ratio of a screen of a display unit by compressing and enlarging the whole of the image to a desired size. A video signal is sequentially written into a field memory in response to a write clock from an input terminal. A clock generating circuit supplies the field memory with a read clock having a frequency which is about 4/3 times as high as that of the write clock. A vertical enlargement control circuit reads a video signal from the field memory with a line period corresponding to a magnification factor and inhibits writing to a one-line memory with the same period to provide a line delayed output for an output signal from the field memory. A vertical interpolating circuit generates a scanning line signal by an interpolation operation in accordance with a control signal from the vertical enlargement control circuit.
摘要翻译： 通过将整个图像压缩并放大到期望的大小来提供与显示单元的屏幕的纵横比匹配的图像。 响应于来自输入端的写时钟，视频信号被顺序地写入场存储器。 时钟产生电路为场存储器提供具有与写入时钟的频率约4/3倍的频率的读时钟。 垂直放大控制电路以与放大倍率对应的行周期从场存储器读取视频信号，并禁止以相同周期对单行存储器进行写入，以提供来自场存储器的输出信号的行延迟输出。 垂直内插电路根据来自垂直放大控制电路的控制信号通过内插操作产生扫描线信号。
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2.发明授权Compatible wide aspect ratio receiver with spatial filtering for variable zoom 失效兼容的宽宽比接收器，具有可变焦距的空间滤波
公开(公告)号：US5276515A
公开(公告)日：1994-01-04
申请号：US942143
申请日：1992-09-08
申请人： Kenji Katsumata , Shigeru Hirahata , Haruki Takata , Mituo Konno , Kouichi Ishibashi , Kazuhiro Kaizaki , Takaaki Matono , Atushi Haratani
发明人： Kenji Katsumata , Shigeru Hirahata , Haruki Takata , Mituo Konno , Kouichi Ishibashi , Kazuhiro Kaizaki , Takaaki Matono , Atushi Haratani
CPC分类号： H04N7/0122 , G06T3/40 , H04N5/2628
摘要： A video signal processing circuit is provided to display an image of a standard television signal on a display unit with a 6:9 aspect ratio by enlarging an image of a video signal in the horizontal and vertical directions by a magnification factor which depends on the feature of the standard television signal. The processing circuit includes a first memory circuit which reads out the stored video signal in response to a read clock different from the write clock and generated by a stable frequency source so that the image of the video signal is expanded in the vertical direction, a second memory circuit which implements time-base compression for the output of the first memory circuit and thereafter expands the signal, a spatial filter which implements filtering for the output of the second memory circuit, an enlargement control circuit which control the above-mentioned circuits, and a synchronizing processing circuit. The circuit arrangement enables video signals of various image sizes, such as for movie pictures, to be displayed by signal conversion on a display unit with a 16:9 aspect ratio, and is capable of suppressing jitters of video signals.
摘要翻译： 提供一种视频信号处理电路，通过在水平和垂直方向上放大视频信号的图像，依赖于特征的放大系数，以6:9的宽高比在显示单元上显示标准电视信号的图像 的标准电视信号。 处理电路包括：第一存储器电路，其响应于与写入时钟不同的读取时钟读出存储的视频信号，并由稳定的频率源产生，使得视频信号的图像在垂直方向上扩展，第二存储器电路 对第一存储器电路的输出进行时基压缩，然后扩展信号的存储电路，对第二存储电路的输出实现滤波的空间滤波器，控制上述电路的放大控制电路，以及 一个同步处理电路。 该电路装置能够通过在具有16:9宽高比的显示单元上进行信号转换来显示诸如电影图像的各种图像尺寸的视频信号，并且能够抑制视频信号的抖动。
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3.发明授权Wide-screen television receiver with aspect ratio conversion function and method of displaying a range to be magnified and displayed 失效具有宽高比转换功能的宽屏电视接收机和显示要放大和显示的范围的方法
公开(公告)号：US5343238A
公开(公告)日：1994-08-30
申请号：US886856
申请日：1992-05-22
申请人： Haruki Takata , Kenji Katsumata , Shigeru Hirahata , Mituo Konno , Kouichi Ishibashi , Sunao Suzuki
发明人： Haruki Takata , Kenji Katsumata , Shigeru Hirahata , Mituo Konno , Kouichi Ishibashi , Sunao Suzuki
CPC分类号： G06T3/4007 , H04N7/0122
摘要： A wide-screen television receiver capable of converting a TV signal of a non-aspect ratio into a signal of a wide aspect ratio which can be displayed on a wide screen of the wide aspect ratio and previously visually informing the user of what part of the image of the non-aspect ratio TV signal is converted in its aspect ratio and displayed on the wide screen. The receiver includes the interpolation scan speed conversion circuit, the mode setting circuit, the aspect ratio converting circuit, the wide cursor adding circuit and the wide display. The interpolation scan speed conversion circuit makes a series of processes such as Y/C separation and scan line interpolation for the input video signal supplied via the input terminal. The aspect ratio converting circuit compresses the video signal from the interpolation scan speed conversion circuit in the horizontal direction by use of a memory. The magnification processing circuit is provided after the aspect ratio converting circuit. This magnification processing circuit magnifies the horizontally compressed video signal so that an arbitrary part of image specified by the mode setting circuit can be magnified at given magnification powers in the horizontal and vertical direction. The wide screen display displays the magnified image of the video signal without horizontal and vertical distortions on the wide screen.
摘要翻译： 一种能够将非高宽比的TV信号转换为宽宽比的信号的宽屏幕电视接收机，其可以在宽宽比的宽屏幕上显示，并且以前可视地通知用户哪些部分 非纵横比TV信号的图像以其纵横比转换并显示在宽屏幕上。 接收机包括内插扫描速度转换电路，模式设置电路，宽高比转换电路，宽光标添加电路和宽显示。 内插扫描速度转换电路对通过输入端子提供的输入视频信号进行一系列处理，例如Y / C分离和扫描线内插。 宽高比转换电路通过使用存储器在水平方向上压缩来自内插扫描速度转换电路的视频信号。 放大处理电路在宽高比转换电路之后提供。 该放大处理电路放大水平压缩的视频信号，使得由模式设置电路指定的图像的任意部分可以在水平和垂直方向上以给定的放大倍数来放大。 宽屏幕显示屏在宽屏幕上显示视频信号的放大图像，无水平和垂直失真。
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公开(公告)号：US5243421A
公开(公告)日：1993-09-07
申请号：US772162
申请日：1991-10-07
CPC分类号： H04N7/0122 , H04N7/007
摘要： A wide television receiver which converts a video input signal having an aspect ratio 4:3 or 16:9 into a display format permitting selecting of display with horizontal compression, without horizontal compression, with vertical magnification, or without vertical magnification to present the display on a wide display having an aspect ratio 16:9.
摘要翻译： 将具有纵横比4：3或16：9的视频输入信号转换成允许以水平压缩选择水平压缩的显示格式的宽电视接收机，而不进行垂直放大的水平压缩，或者不使用垂直放大来显示显示 具有宽高比16：9的宽显示。
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公开(公告)号：US4736252A
公开(公告)日：1988-04-05
申请号：US932376
申请日：1986-11-20
申请人： Isao Nakagawa , Masahiko Achiha , Masato Sugiyama , Kenji Katsumata , Toshinori Murata , Shigeru Hirahata , Akihide Okuda
发明人： Isao Nakagawa , Masahiko Achiha , Masato Sugiyama , Kenji Katsumata , Toshinori Murata , Shigeru Hirahata , Akihide Okuda
CPC分类号： H04N5/144
摘要： A motion detector for a chrominance signal which is used with a TV receiver equipped with a video signal motion detector. This motion detector for a chrominance signal has a delay element for delaying the chrominance signal of a video signal by 1 frame period, a subtractor for subtracting the output signal of the delay element from the input signal thereof, an absolute value conversion circuit to which the output signal from the subtractor is inputted, and a smoother circuit to which the output signal from the absolute value conversion circuit is supplied. If the chrominance signals of video signals on two consecutive frames are the same, the output signal of the subtractor becomes zero. If the chrominance signals of video signals on two consecutive frames are different, the output signal of the substractor takes a positive or negative value. The negative value signal is converted into a positive value signal by the absolute value conversion circuit. A signal is outputted from the smoother circuit only when the chrominance signals of video signals on two consecutive frames are different. This outputted signal is a chrominance signal motion detection signal. The luminance signal contained in a video signal is removed from the video signal using a comb-type filter.
摘要翻译： 用于与配备有视频信号运动检测器的TV接收机一起使用的色度信号的运动检测器。 用于色度信号的运动检测器具有用于将视频信号的色度信号延迟1帧周期的延迟元件，用于从其输入信号中减去延迟元件的输出信号的减法器，绝对值转换电路， 输入来自减法器的输出信号，并且提供来自绝对值转换电路的输出信号的平滑电路。 如果两个连续帧上的视频信号的色度信号相同，则减法器的输出信号变为零。 如果两个连续帧上的视频信号的色度信号不同，则减法器的输出信号为正或负值。 负值信号由绝对值转换电路转换为正值信号。 仅当两个连续帧上的视频信号的色度信号不同时才从平滑电路输出信号。 该输出信号是色度信号运动检测信号。 使用梳状滤波器从视频信号中去除包含在视频信号中的亮度信号。
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公开(公告)号：US4775888A
公开(公告)日：1988-10-04
申请号：US143336
申请日：1988-01-13
申请人： Isao Nakagawa , Masahiko Achiha , Masato Sugiyama , Kenji Katsumata , Toshinori Murata , Shigeru Hirahata , Akihide Okuda
发明人： Isao Nakagawa , Masahiko Achiha , Masato Sugiyama , Kenji Katsumata , Toshinori Murata , Shigeru Hirahata , Akihide Okuda
CPC分类号： H04N5/144
摘要： A motion detector for a chrominance signal which is used with a TV receiver equipped with a video signal motion detector. This motion detector for a chrominance signal has a delay element for delaying the chrominance signal of a video signal by 1 frame period, a subtracter for subtracting the output signal of the delay element from the input signal thereof, an absolute value conversion circuit to which the output signal from the subtracter is inputted, and a smoother circuit to which the output signal from the absolute value conversion circuit is supplied. If the chrominance signal of video signals on two consecutive frames are the same, the output signal of the subtracter becomes zero. If the chrominance signals of video signals on two consecutive frames are different, the output signal of the subtracter takes a positive or negative value. The negative value signal is converted into a positive value signal by the absolute value conversion circuit. A signal is outputted from the smoother circuit only when the chrominance signals of video signals on two consecutive frames are different. This outputted signal is a chrominance signal motion detection signal.The luminance signal contained in a video signal is removed from the video signal using a comb-type filter.
摘要翻译： 用于与配备有视频信号运动检测器的TV接收机一起使用的色度信号的运动检测器。 用于色度信号的运动检测器具有用于将视频信号的色度信号延迟1帧周期的延迟元件，用于从其输入信号中减去延迟元件的输出信号的减法器，绝对值转换电路， 输入来自减法器的输出信号，并且提供来自绝对值转换电路的输出信号的平滑电路。 如果两个连续帧上的视频信号的色度信号相同，则减法器的输出信号变为零。 如果两个连续帧上的视频信号的色度信号不同，则减法器的输出信号取正值或负值。 负值信号由绝对值转换电路转换为正值信号。 仅当两个连续帧上的视频信号的色度信号不同时才从平滑电路输出信号。 该输出信号是色度信号运动检测信号。 使用梳状滤波器从视频信号中去除包含在视频信号中的亮度信号。
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7.发明授权Television receiver compatible with both standard system television signal and high definition television signal 失效电视接收机兼容标准系统电视信号和高分辨率电视信号
公开(公告)号：US5132793A
公开(公告)日：1992-07-21
申请号：US490850
申请日：1990-03-09
申请人： Shigeru Hirahata , Shinobu Torikoshi , Toshiyuki Sakamoto , Takumi Okamura , Noboru Kojima , Tetsuo Mitsuhashi , Isao Kondo , Yuichi Ninomiya , Koichi Yamaguchi , Toshiro Ohmura
发明人： Shigeru Hirahata , Shinobu Torikoshi , Toshiyuki Sakamoto , Takumi Okamura , Noboru Kojima , Tetsuo Mitsuhashi , Isao Kondo , Yuichi Ninomiya , Koichi Yamaguchi , Toshiro Ohmura
CPC分类号： H04N7/012 , H04N7/0122 , H04N9/642
摘要： There is disclosed a compatible television receiver capable of receiving and reproducing both the standard system television signal and the high definition television signal and capable of confining the degradation of picture quality of the high definition television signal to the minimum, in which the received standard system television signal and high definition television signal are respectively converted to non-interlace signals, and scanning is selectively performed with either of non-interlace video signals to display images. The television receiver according to the present invention comprises a first conversion circuit for receiving an interlace standard system television signal and converting it into a non-interlace television signal, a second conversion circuit for receiving an interlace high definition television signal and converting it into a non-interlace televison signal, a circuit for discriminating whether the received signal is the standard system television signal or the high definition signal, and a circuit for selecting either of outputs of the first and second conversion circuits on the basis of the result obtained in the discrimination circuit.
摘要翻译： 公开了能够接收和再现标准系统电视信号和高分辨率电视信号并且能够将高清晰度电视信号的图像质量的劣化限制在最小的兼容电视接收机，其中所接收的标准系统电视 信号和高分辨率电视信号分别转换为非隔行扫描信号，并且使用非隔行扫描视频信号中的任一个选择性地执行扫描以显示图像。 根据本发明的电视接收机包括：第一转换电路，用于接收隔行扫描标准系统电视信号并将其转换为不隔行电视信号;第二转换电路，用于接收隔行高清晰度电视信号并将其转换成非隔行电视信号; 隔离电视信号，用于鉴别接收到的信号是标准系统电视信号还是高分辨率信号的电路，以及用于基于在鉴别中获得的结果来选择第一和第二转换电路的输出之一的电路 电路。
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公开(公告)号：US4733300A
公开(公告)日：1988-03-22
申请号：US938962
申请日：1986-12-08
摘要： In combination, a signal processing circuit for television signals includes a contour signal correction circuit for use in a television receiver and a scanning line interpolation circuit for converting a television signal of a signal structure for interlaced scanning into a television signal for sequential scanning.
摘要翻译： 综合起来，用于电视信号的信号处理电路包括用于电视接收机的轮廓信号校正电路和用于将用于隔行扫描的信号结构的电视信号转换成用于顺序扫描的电视信号的扫描线内插电路。
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公开(公告)号：US4733297A
公开(公告)日：1988-03-22
申请号：US36431
申请日：1987-04-09
申请人： Kenji Katsumata , Masato Sugiyama , Akihide Okuda , Shigeru Hirahata , Isao Nakagawa , Sunao Suzuki
发明人： Kenji Katsumata , Masato Sugiyama , Akihide Okuda , Shigeru Hirahata , Isao Nakagawa , Sunao Suzuki
摘要： A video signal processing circuit of motion adaptive type includes a circuit for identifying motion of a picture in a video signal on the basis of a difference signal between at least a line signal appearing in an M-th field and a corresponding line signal appearing in an (M-1)th field so that, when a scanning line produced on the basis of the video signal is interpolated between scanning lines of the video signal to improve the picture quality, a signal for interpolating said scanning line is produced in a different manner depending on whether a portion of the video signal to the displayed is a still picture or a moving picture. The motion identifying circuit comprises a horizontal filter spreading the difference signal in the horizontal direction, a circuit delaying the output signal of the horizontal filter by one field after attenuation, a line memory delaying the output signal of the attenuating and delaying circuit by one line, and an output circuit generating a signal identifying the motion of the picture on the basis of the output signals of the horizontal filter, attenuating and delaying circuit and line memory.
摘要翻译： 运动自适应型视频信号处理电路包括一个电路，用于根据出现在第M场的线路信号和出现在第M场的相应线路信号之间的差分信号识别视频信号中的图像的运动 （M-1）场，使得当基于视频信号产生的扫描线被内插在视频信号的扫描线之间以提高图像质量时，以不同的方式产生用于内插所述扫描线的信号 取决于所显示的视频信号的一部分是静止图像还是运动图像。 运动识别电路包括在水平方向上扩展差分信号的水平滤波器，将衰减后的水平滤波器的输出信号延迟一个场的电路，将存储器的衰减延迟电路的输出信号延迟一行， 以及输出电路，其基于水平滤波器的输出信号，衰减和延迟电路和行存储器来产生识别图像的运动的信号。
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10.发明授权
公开(公告)号：US4794454A
公开(公告)日：1988-12-27
申请号：US105013
申请日：1987-10-06
申请人： Masato Sugiyama , Kenji Katsumata , Shigeru Hirahata , Isao Nakagawa , Sunao Suzuki , Masahiko Achiha , Kazuo Ishikura
发明人： Masato Sugiyama , Kenji Katsumata , Shigeru Hirahata , Isao Nakagawa , Sunao Suzuki , Masahiko Achiha , Kazuo Ishikura
CPC分类号： H04N9/646
摘要： A movement detection circuit for detecting movement information of a luminance signal and movement information of a chrominance signal of a television signal comprises a first movement detection circuit for detecting the movement information of the luminance signal and a second movement detection circuit for detecting the movement information of the chrominance signal. The first movement detection circuit detects the movement information of the luminance signal based on two signals spaced by one frame period, and the second movement detection circuit detects the movement information of the chrominance signal based on two signals spaced by two frames periods.
摘要翻译： 用于检测亮度信号的运动信息和电视信号的色度信号的移动信息的移动检测电路包括：用于检测亮度信号的移动信息的第一移动检测电路和用于检测亮度信号的运动信息的第二移动检测电路， 色度信号。 第一移动检测电路基于间隔一帧周期的两个信号来检测亮度信号的移动信息，第二移动检测电路基于间隔两帧周期的两个信号来检测色度信号的移动信息。
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