公开(公告)号：US5063445A

公开(公告)日：1991-11-05

申请号：US511374

申请日：1990-04-19

申请人： Taiji Nishizawa ,  Yutaka Tanaka ,  Seiichi Gohshi ,  Junji Kumada ,  Yuichi Iwadate ,  Kazuhiko Shibuya ,  Toshihiko Susaki ,  Yukihiro Nishida ,  Minoru Honda ,  Taiichiro Kurita ,  Yoshinori Izumi ,  Makoto Okui ,  Isao Kondo ,  Ryoichi Yajima ,  Jun'ichi Ishida

发明人： Taiji Nishizawa ,  Yutaka Tanaka ,  Seiichi Gohshi ,  Junji Kumada ,  Yuichi Iwadate ,  Kazuhiko Shibuya ,  Toshihiko Susaki ,  Yukihiro Nishida ,  Minoru Honda ,  Taiichiro Kurita ,  Yoshinori Izumi ,  Makoto Okui ,  Isao Kondo ,  Ryoichi Yajima ,  Jun'ichi Ishida

IPC分类号： G06T9/00 ,  H04N7/015 ,  H04N7/04 ,  H04N11/24

CPC分类号： H04N7/04 ,  G06T9/004 ,  H04N11/008 ,  H04N7/0152

摘要： A multiple sub-sampling encoding/decoding system performing interfield and interframe offset sub-sampling of a broad bandwidth television signal. The system compresses the television signal to fit, for example, to the transmission bandwidth of the standard television systems, compensates the transmission characteristics, and achieves the optimal frequency allocation of the modulated transmission signal.

摘要翻译： 执行宽带电视信号的帧间和帧间偏移子采样的多个子采样编码/解码系统。 该系统压缩电视信号以适应例如标准电视系统的传输带宽，补偿传输特性，并实现调制传输信号的最佳频率分配。

公开(公告)号：US5612748A

公开(公告)日：1997-03-18

申请号：US469425

申请日：1995-06-06

申请人： Seiichi Gohshi ,  Yoshinori Izumi ,  Masahide Naemura ,  Kouichi Yamaguchi

发明人： Seiichi Gohshi ,  Yoshinori Izumi ,  Masahide Naemura ,  Kouichi Yamaguchi

IPC分类号： H04N7/015 ,  H04N7/12 ,  H04N11/04 ,  H04N11/24 ,  H04N7/24

CPC分类号： H04N11/006 ,  H04N11/048 ,  H04N7/0152 ,  H04N7/122

摘要： In the case where a wide-band color picture signal provided for a high-definition television broadcasting is sub-sampled for narrow-band transmission, in comparison with a stationary picture signal which is applied with sub-sampling according to a sampling pattern circulated at every two frames, the color picture signal in motional picture regions, which is conventionally applied with line-offset sub-sampling at every field, has a lowered resolution. To improve the resolution concerned, color difference signals in motional picture regions are applied with inter-field offset sub-sampling together with band-limitation for preventing aliasing distortion accompanied with subsampling and signal processing including interpolation for reproduction, which are effected in a form completed at every frame. As for motional picture regions having small motion, a luminance signal is applied also with similar sub-sampling and similar signal processing. As a result, the overall picture quality of the reproduced motional color picture is improve by signal processing thus adapted for color pictures in motional picture regions.

摘要翻译： 在为高频电视广播提供的宽带彩色图像信号被子采样以用于窄带传输的情况下，与根据在 每两帧通常在每个场应用线偏移次采样的运动图像区域中的彩色图像信号具有降低的分辨率。 为了提高相关分辨率，运动图像区域中的色差信号与带限制一起应用场间偏移子采样，以防止伴随二次采样的信号失真和包括用于再现的内插的信号处理，其以完成的形式 在每一帧。 对于具有小运动的运动图像区域，也应用相似的次采样和类似的信号处理的亮度信号。 结果，再现的运动彩色图像的整体图像质量通过适用于运动图像区域中的彩色图像的信号处理而得到改善。

公开(公告)号：US5561467A

公开(公告)日：1996-10-01

申请号：US498778

申请日：1990-03-26

申请人： Yoshio Takeuchi ,  Makoto Okui ,  Isao Kondo ,  Yasuaki Kanatsugu ,  Junji Kumada ,  Taiichiro Kurita ,  Kazuhiko Shibuya ,  Taiji Nishizawa ,  Yutaka Tanaka ,  Minoru Honda ,  Ryoichi Yajima ,  Shoichi Suzuki ,  Hisakazu Kato ,  Hiroyuki Hamazumi ,  Kazumasa Enami ,  Seiichi Gohshi ,  Yoshinori Izumi ,  Haruo Okuda ,  Ichiro Yuyama ,  Sumio Yano ,  Makoto Tadenuma

发明人： Yoshio Takeuchi ,  Makoto Okui ,  Isao Kondo ,  Yasuaki Kanatsugu ,  Junji Kumada ,  Taiichiro Kurita ,  Kazuhiko Shibuya ,  Taiji Nishizawa ,  Yutaka Tanaka ,  Minoru Honda ,  Ryoichi Yajima ,  Shoichi Suzuki ,  Hisakazu Kato ,  Hiroyuki Hamazumi ,  Kazumasa Enami ,  Seiichi Gohshi ,  Yoshinori Izumi ,  Haruo Okuda ,  Ichiro Yuyama ,  Sumio Yano ,  Makoto Tadenuma

IPC分类号： H04N7/00 ,  H04N7/015 ,  H04N7/08 ,  H04N7/081 ,  H04N9/83 ,  H04N11/14 ,  H04N11/24

CPC分类号： H04N7/0152 ,  H04N11/002 ,  H04N7/007 ,  H04N7/0803 ,  H04N7/081 ,  H04N9/832 ,  H04N11/14 ,  H04N7/0122

摘要： High resolution vertical and horizontal components of a high definition video signal are combined with a standard broadcast system video signal, such as the NTSC system, in which high frequency horizontal resolution components are sampled and used to modulate at least a first sub-carrier signal. The first sub-carrier is frequency interleaved onto the standard broadcast signal. Vertical high resolution components are time compressed and time division multiplexed onto top and bottom portions of the standard broadcast signal. The modified broadcast signal can be decoded by a standard receiver to display a standard resolution video image, while receivers designed to decode the modified signal can time division demultiplex the vertical high resolution components and demodulate the horizontal high resolution components, combine these components with the standard components, and generate a high definition video image.

摘要翻译： 高清晰度视频信号的高分辨率垂直和水平分量与诸如NTSC系统的标准广播系统视频信号组合，其中高频水平分辨率分量被采样并用于至少调制第一副载波信号。 第一副载波被频率交织到标准广播信号上。 垂直高分辨率分量被时间压缩并且被时分复用到标准广播信号的顶部和底部。 修改的广播信号可以由标准接收机解码以显示标准分辨率视频图像，而被设计为解码修改的信号的接收机可以对垂直高分辨率分量进行时分解复用并且解调水平高分辨率分量，将这些分量与标准 组件，并生成高分辨率视频图像。