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1.发明授权Video signal switching circuit especially suitable for high definition television receiving 失效视频信号切换电路特别适用于高分辨率电视接收
公开(公告)号：US5153724A
公开(公告)日：1992-10-06
申请号：US499351
申请日：1990-08-06
摘要： The present invention provides an apparatus which receives and displays a high definition television signal and which is constructed so that noise and/or a deformed picture may not be displayed even when an input signal instead of a high definition television signal is applied or when transmission of such a high definition television signal is interrupted. In the apparatus, on the basis of whether or not a frame signal in an input high definition television signal can be detected, a first signal indicating synchronization lock or a second signal indicating synchronization unlock is generated so that, when the first signal is detected, the output of a signal processing circuit (110) is selected to display the high definition television signal, while when the second signal is detected, the output of a pattern generation circuit (114) is selected to prevent display of noise etc.
摘要翻译： PCT No.PCT / JP88 / 01085 Sec。 371日期1990年8月6日 102（e）日期1990年8月6日PCT提交1989年10月24日PCT公布。 出版物WO90 / 04904 1990年3月5日。本发明提供了一种接收和显示高分辨率电视信号的装置，其被构造成使得即使当输入信号代替高分辨率电视时也可能不显示噪声和/或变形图像 信号被施加或当这种高清晰度电视信号的传输被中断时。 在该装置中，基于是否能够检测输入高清晰度电视信号中的帧信号，产生表示同步锁定的第一信号或表示同步解锁的第二信号，使得当检测到第一信号时， 选择信号处理电路（110）的输出以显示高分辨率电视信号，而当检测到第二信号时，选择图案产生电路（114）的输出以防止噪声的显示等。
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公开(公告)号：US5097333A
公开(公告)日：1992-03-17
申请号：US499350
申请日：1990-08-06
CPC分类号： H04N21/4302 , H03M13/2789 , H04N21/8106 , H04N7/0152
摘要： In processing the transfer of digital voice signals, an interframe deinterleave switching circuit automatically switches the interleaving length without requiring any switching signal from the external unit. The circuit detects a voice synchronizing signal, produces a switching signal when the voice synchronizing signal is not detected, and inputs the switching signal to an interframe deinterleaving circuit (I) so that the interleaving length is automatically switched in synchronism therewith.
摘要翻译： PCT No.PCT / JP89 / 01086 Sec。 371日期1990年8月6日 102（e）日期1990年8月6日PCT提交1989年10月24日PCT公布。 出版物WO90 / 04905 日期为1990年5月3日。在处理数字语音信号的传送中，帧间去交织切换电路自动切换交织长度，而不需要来自外部单元的任何切换信号。 该电路检测语音同步信号，当没有检测到语音同步信号时产生切换信号，并将切换信号输入到帧间解交织电路（I），使得交织长度与其自动切换。
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3.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：US4731651A
公开(公告)日：1988-03-15
申请号：US889226
申请日：1986-07-25
申请人： Kunio Matsumoto , Akira Furutani , Yutaka Tanaka , Toshiro Ohmura , Taiichiro Kurita , Yoshimichi Ohtsuka , Taiji Nishizawa , Yuichi Ninomiya
发明人： Kunio Matsumoto , Akira Furutani , Yutaka Tanaka , Toshiro Ohmura , Taiichiro Kurita , Yoshimichi Ohtsuka , Taiji Nishizawa , Yuichi Ninomiya
CPC分类号： H04N7/014
摘要： Image movement correction is provided in a field conversion television system by deriving simultaneously two fields of a selected number of lines from an original single field and vertically shifting one of the derived fields by 0.5 lines. A movement vector is determined for each field and movement correction is performed based on a current field and a preceding field, in the case of a moving object in the image. If no moving object is present linear approximation is employed to correct for motion caused by the field number conversion. Two memory systems are provided for the two simultaneous fields and also to selectively obtain specific horizontal lines of the current and preceding fields, relative to both simultaneous derived fields. Ultimate selection of a field for display is based upon the detected movement vector.
摘要翻译： 在场转换电视系统中，通过从原始单个场同时导出所选行数的两个场并将所导出的场之一垂直移位0.5行，来提供图像移动校正。 对于每个场确定运动矢量，并且在图像中的移动物体的情况下，基于当前场和前一场进行运动校正。 如果没有移动物体存在线性近似来校正由场号转换引起的运动。 为两个同时的场提供两个存储器系统，并且还相对于两个同时派生的场来选择性地获得当前和先前场的特定水平线。 用于显示的场的极限选择是基于检测到的运动矢量。
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公开(公告)号：US4779131A
公开(公告)日：1988-10-18
申请号：US889224
申请日：1986-07-25
申请人： Kunio Matsumoto , Tadao Fujita , Kenji Takanashi , Yutaka Tanaka , Toshiro Ohmura , Taiichiro Kurita , Yoshimichi Ohtsuka , Taiji Nishizawa , Yuichi Ninomiya
发明人： Kunio Matsumoto , Tadao Fujita , Kenji Takanashi , Yutaka Tanaka , Toshiro Ohmura , Taiichiro Kurita , Yoshimichi Ohtsuka , Taiji Nishizawa , Yuichi Ninomiya
CPC分类号： H04N5/144 , G06T7/2053
摘要： In an apparatus for detecting movement of a television image in response to frame difference data corresponding to a difference between present frame data and previous frame data, a video signal is divided into a plurality of segmental areas for each frame, a pixel or picture element is selected to represent each of the segmental areas, frame difference data are produced for each of the segmental areas by calculating differences in the position or coordinates of a pixel representative of a segmental area of a previous frame from the respective picture element of the corresponding segmental area in the present frame, and each of the calculated differences smaller than a predetermined magnitude, and which would be characteristic of a stationary background portion of the television image, is omitted from the frame difference data. This is effective to improve the movement vector detection accuracy. The apparatus has a circuit for zeroing the frame difference data, and thereby improving, the movement vector detection reliability when the number of the calculated differences omitted from the frame difference data exceeds a predetermined value.
摘要翻译： 在用于根据与当前帧数据和先前帧数据之间的差对应的帧差数据来检测电视图像的移动的装置中，视频信号被划分成每个帧的多个分段区域，像素或像素是 被选择为表示每个分段区域，通过计算代表先前帧的分段区域的像素的位置或坐标的差异，从而对于每个分段区域产生帧差数据，该像素与相应分段区域的相应像素 在帧差中，从帧差数据中省略计算出的差异小于规定大小，并且将是电视图像的静止背景部分的特征的各个。 这对于提高运动矢量检测精度是有效的。 该装置具有用于使帧差分数据归零的电路，从而提高当从帧差数据中省略的计算出的差异的数量超过预定值时的运动矢量检测可靠性。
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公开(公告)号：US4663665A
公开(公告)日：1987-05-05
申请号：US814493
申请日：1985-12-30
申请人： Yutaka Tanaka , Taiji Nishizawa , Yuichi Ninomiya , Toshiro Ohmura , Taiichiro Kurita , Yoshimichi Ohtsuka
发明人： Yutaka Tanaka , Taiji Nishizawa , Yuichi Ninomiya , Toshiro Ohmura , Taiichiro Kurita , Yoshimichi Ohtsuka
IPC分类号： H04N7/01
CPC分类号： H04N7/014
摘要： The picture quality deterioration such as judder caused by TV frame number conversion can be mitigated by selecting either the stationary original picture signal or the motion-compensated interpolated picture signal based on the most adaptive motion vector corresponding to the smallest interframe difference between the original picture signal and the motion-compensated picture signals based on the motion vectors individually detected from divisional picture areas. The effect of this mitigation can be increased by weighting the detected motion vectors and by smoothing the contour between motion-compensated picture areas with the aid of filtering.
摘要翻译： 可以通过基于与原始图像信号之间的最小帧间差最大的自适应运动矢量选择固定原始图像信号或运动补偿内插图像信号来减轻由TV帧数转换引起的抖动的图像质量恶化 以及基于从分割图像区域单独检测的运动矢量的运动补偿图像信号。 通过对检测到的运动矢量进行加权并借助于滤波来平滑运动补偿图像区域之间的轮廓，可以提高这种缓解的效果。
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