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

IPC分类号： G06T3/40 ,  H04N5/44 ,  H04N5/46

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。

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

IPC分类号： G06T3/40 ,  H04N5/262 ,  H04N5/44 ,  H04N7/01 ,  H04N5/46

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。