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11. 发明申请

US20080069208A1 HIGH-EFFICIENCY ENCODER AND VIDEO INFORMATION RECORDING/REPRODUCING APPARATUS 失效
公开(公告)号：US20080069208A1
公开(公告)日：2008-03-20
申请号：US11929175
申请日：2007-10-30
申请人： Tomohiro Ueda , Takashi Itow , Yoshinori Asamura , Ken Onishi , Hidetoshi Mishima
发明人： Tomohiro Ueda , Takashi Itow , Yoshinori Asamura , Ken Onishi , Hidetoshi Mishima
IPC分类号： H04N7/12 , H04B1/66 , H04N11/02 , H04N11/04
CPC分类号： H04N9/8042 , G11B20/00007 , G11B27/005 , G11B27/032 , G11B27/036 , G11B27/28 , G11B2220/20 , G11B2220/90 , G11B2220/91 , H04N5/78263 , H04N5/78266 , H04N5/9262 , H04N5/9264 , H04N5/928 , H04N7/012 , H04N9/8063 , H04N9/83 , H04N9/8355 , H04N19/105 , H04N19/107 , H04N19/114 , H04N19/115 , H04N19/136 , H04N19/137 , H04N19/142 , H04N19/172 , H04N19/177 , H04N19/179 , H04N19/18 , H04N19/42 , H04N19/46 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/87
摘要： In a high-efficiency encoder which performs motion-compensation prediction, an intra-field is set every n fields. The presence of a scene change is detected. When a scene change occurs, a reference picture of motion-compensation prediction is switched, or the field immediately after the scene change is set as an intra-field.

12. 发明授权

US07336708B2 High-efficiency encoder and video information recording/reproducing apparatus 失效
标题翻译：高效率编码器和视频信息记录/再现装置
公开(公告)号：US07336708B2
公开(公告)日：2008-02-26
申请号：US10372212
申请日：2003-02-25
申请人： Tomohiro Ueda , Takashi Itow , Yoshinori Asamura , Ken Onishi , Hidetoshi Mishima
发明人： Tomohiro Ueda , Takashi Itow , Yoshinori Asamura , Ken Onishi , Hidetoshi Mishima
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66
CPC分类号： H04N9/8042 , G11B20/00007 , G11B27/005 , G11B27/032 , G11B27/036 , G11B27/28 , G11B2220/20 , G11B2220/90 , G11B2220/91 , H04N5/78263 , H04N5/78266 , H04N5/9262 , H04N5/9264 , H04N5/928 , H04N7/012 , H04N9/8063 , H04N9/83 , H04N9/8355 , H04N19/105 , H04N19/107 , H04N19/114 , H04N19/115 , H04N19/136 , H04N19/137 , H04N19/142 , H04N19/172 , H04N19/177 , H04N19/179 , H04N19/18 , H04N19/42 , H04N19/46 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/87
摘要： In a high-efficiency encoder which performs motion-compensation prediction, an intra-field is set every n fields. The presence of a scene change is detected. When a scene change occurs, a reference picture of motion-compensation prediction is switched, or the field immediately after the scene change is set as an intra-field.
摘要翻译：在执行运动补偿预测的高效编码器中，每n个场设定场内场。检测到场景变化的存在。当发生场景变化时，切换运动补偿预测的参考图像，或将场景改变之后的场设置为场内。

13. 发明授权

US06009236A Digital video signal record and playback device and method for giving priority to a center of an I frame 失效
公开(公告)号：US06009236A
公开(公告)日：1999-12-28
申请号：US877875
申请日：1997-06-18
申请人： Hidetoshi Mishima , Yoshinori Asamura , Yoshiko Hatano , Shuji Sotoda , Satoshi Kurahashi , Takahiro Nakai , Tadashi Kasezawa , Masato Nagasawa , Hiroyuki Oohata , Yoshinobu Ishida
发明人： Hidetoshi Mishima , Yoshinori Asamura , Yoshiko Hatano , Shuji Sotoda , Satoshi Kurahashi , Takahiro Nakai , Tadashi Kasezawa , Masato Nagasawa , Hiroyuki Oohata , Yoshinobu Ishida
IPC分类号： G06T9/00 , H04N5/783 , H04N5/85 , H04N7/26 , H04N7/30 , H04N7/36 , H04N7/50 , H04N9/804 , H04N9/806 , H04N21/432 , H04N21/433 , H04N21/434 , H04N21/438 , H04N21/4402 , H04N21/462
CPC分类号： H04N19/00 , H04N19/105 , H04N19/115 , H04N19/124 , H04N19/149 , H04N19/154 , H04N19/17 , H04N19/172 , H04N19/177 , H04N19/18 , H04N19/184 , H04N19/42 , H04N19/503 , H04N19/59 , H04N19/61 , H04N19/70 , H04N21/4325 , H04N21/4334 , H04N21/4341 , H04N5/85 , H04N9/8042 , H04N19/107 , H04N19/60 , H04N21/4382 , H04N21/440254 , H04N21/440263 , H04N21/4621 , H04N5/783 , H04N9/8063
摘要： A digital video signal record and playback device for recording on a recording medium a digital video signal coded by using a motion compensation prediction and an orthogonal transform and playing back data from the recording medium. In a data arrangement of a digital video signal, an I picture which can be independently represented in a picture is divided into n areas in the vertical direction, and the data is arranged from the front of one GOP in the unit of area by giving a priority to an area located at the center of the screen. A playback picture is outputted by playing back the I picture read from the recording medium in the unit of area unit. In the case where the whole I picture area cannot be read within a definite time, the area which cannot be read are interpolated by the use of the data of the preceding screen.

14. 发明授权

US5909252A High efficiency encoder and video information recording/reproducing apparatus 失效
标题翻译：高效率编码器和视频信息记录/再现装置
公开(公告)号：US5909252A
公开(公告)日：1999-06-01
申请号：US113287
申请日：1998-07-10
申请人： Tomohiro Ueda , Takashi Itow , Yoshinori Asamura , Ken Onishi , Hidetoshi Mishima
发明人： Tomohiro Ueda , Takashi Itow , Yoshinori Asamura , Ken Onishi , Hidetoshi Mishima
IPC分类号： G06T9/00 , G11B27/032 , G11B27/034 , G11B27/036 , G11B27/28 , H04N5/00 , H04N5/7826 , H04N5/926 , H04N5/928 , H04N7/24 , H04N7/26 , H04N7/36 , H04N7/46 , H04N7/50 , H04N7/52 , H04N9/804 , H04N9/806 , H04N9/83 , H04N9/835
CPC分类号： G11B27/032 , G11B27/036 , G11B27/28 , H04N19/105 , H04N19/114 , H04N19/137 , H04N19/142 , H04N19/146 , H04N19/172 , H04N19/177 , H04N19/179 , H04N19/42 , H04N19/46 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/87 , H04N21/23418 , H04N21/23424 , H04N21/236 , H04N21/2383 , H04N21/4135 , H04N21/4334 , H04N21/434 , H04N21/4382 , H04N21/44016 , H04N5/9262 , H04N5/9264 , H04N9/8042 , G11B2220/20 , G11B2220/90 , G11B27/034 , H04N19/107 , H04N19/152 , H04N5/78263 , H04N5/78266 , H04N5/928 , H04N9/8063 , H04N9/83 , H04N9/835 , H04N9/8355
摘要： In a high-efficiency encoder which performs motion-compensation prediction, an intra-field is set every n fields. The presence of a scene change is detected. When a scene change occurs, a reference picture of motion-compensation prediction is switched, or the field immediately after the scene change is set as an intra-field.
摘要翻译：在执行运动补偿预测的高效编码器中，每n个场设定场内场。检测到场景变化的存在。当发生场景变化时，切换运动补偿预测的参考图像，或将场景改变之后的场设置为场内。

15. 发明授权

US5440344A Video encoder using adjacent pixel difference for quantizer control 失效
标题翻译：视频编码器使用相邻像素差分进行量化器控制
公开(公告)号：US5440344A
公开(公告)日：1995-08-08
申请号：US48732
申请日：1993-04-21
申请人： Yoshinori Asamura , Takashi Itow , Tomohiro Ueda , Kenji Tsunashima , Satoshi Kurahashi
发明人： Yoshinori Asamura , Takashi Itow , Tomohiro Ueda , Kenji Tsunashima , Satoshi Kurahashi
IPC分类号： H04N5/7826 , H04N5/783 , H04N7/26 , H04N7/30 , H04N7/50 , H04N9/804
CPC分类号： H04N9/8047 , H04N19/102 , H04N19/115 , H04N19/117 , H04N19/124 , H04N19/126 , H04N19/14 , H04N19/142 , H04N19/15 , H04N19/154 , H04N19/176 , H04N19/18 , H04N19/51 , H04N19/60 , H04N19/61 , H04N19/85 , H04N19/88 , H04N19/13 , H04N19/146 , H04N19/152 , H04N19/30 , H04N19/91 , H04N5/78266 , H04N5/783 , H04N9/8045
摘要： When a digital video signal is compressed, the amount of resulting data is predicted and the quantization level is controlled so as to obtain a constant bit rate. The prediction is made by computing a linear combination of a standard deviation and a number of non-zero coefficients, or by computing a sum of absolute differences between adjacent pixel values, or by computing a dynamic range of pixel values. The bit rate can also be controlled by deleting high-frequency coefficients. To avoid image degradation, the quantization level can also be controlled according to the sensitivity of small image areas to quantization noise. Sensitivity is determined by dividing an area into subblocks, which may overlap, and calculating statistics in each subblock. To reduce the amount of computation required in motion estimation, chrominance motion vectors are derived from luminance motion vectors.
摘要翻译：当数字视频信号被压缩时，预测所得到的数据量，并且控制量化电平以获得恒定的比特率。通过计算标准偏差和非零系数的线性组合，或者通过计算相邻像素值之间的绝对差的和，或通过计算像素值的动态范围来进行预测。比特率也可以通过删除高频系数来控制。为了避免图像劣化，也可以根据小图像区域对量化噪声的灵敏度来控制量化级别。通过将区域划分成可以重叠的子块和计算每个子块中的统计量来确定灵敏度。为了减少运动估计所需的计算量，从亮度运动矢量导出色度运动矢量。

16. 发明授权

US5307163A Coding apparatus 失效
标题翻译：编码装置
公开(公告)号：US5307163A
公开(公告)日：1994-04-26
申请号：US031031
申请日：1993-03-11
申请人： Yoshiko Hatano , Yoshinori Asamura , Ken Onishi
发明人： Yoshiko Hatano , Yoshinori Asamura , Ken Onishi
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , H04N7/12
CPC分类号： H04N19/649 , H04N19/126 , H04N19/14 , H04N19/16 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/62 , H04N19/98 , H04N19/124 , H04N19/13 , H04N19/146 , H04N19/152 , H04N19/91
摘要： A coding apparatus, in which each block having a plurality of picture elements with digital image signals is divided into a plurality of sub-blocks, and an appropriate quantization step or weighting factor is decided on the basis of the absolute value sum of difference of image signal level between adjacent picture elements in the sub-block, so that a digital image signal is reduced. Moreover, a coding apparatus, in which each block having a plurality of picture elements with digital image signals is divided into a plurality of sub-blocks, and an appropriate quantization step or weighting factor is decided on the basis of the maximum and minimum values of the image signals of the picture elements in the sub-block, so that a digital image signal is reduced. Accordingly, in the coding apparatus as above, the state of the image is recognized for every block, whereby a block whose degradation of image quality is hard to notice at the decoder side is quantized or subjected to weighting with low rate, that is, with large reduction rate, whereas a block whose degradation of image quality is conspicuous at the decoder side is quantized or subjected to weighting with high rate, i.e., with small reduction rate. As a result, the image quality of the background having little change in the signal is kept good.
摘要翻译：一种编码装置，其中具有数字图像信号的多个图像元素的每个块被划分为多个子块，并且基于图像差的绝对值和来确定适当的量化步长或加权因子在子块中的相邻像素之间的信号电平，使得数字图像信号被减小。此外，将具有数字图像信号的多个像素的每个块划分为多个子块的编码装置，并且基于最大值和最小值来确定适当的量化步长或加权因子子块中的图像元素的图像信号，从而减少数字图像信号。因此，在上述编码装置中，对于每个块，识别图像的状态，由此在解码器侧难以注意到图像质量劣化的块被量化或以低速率进行加权，即，与较大的缩小率，而在解码器侧图像质量劣化的块被量化或以高速率进行加权，即以小的缩小率进行加权。结果，信号的变化小的背景的图像质量保持良好。

17. 发明申请

US20090040178A1 Position detecting device 有权
标题翻译：位置检测装置
公开(公告)号：US20090040178A1
公开(公告)日：2009-02-12
申请号：US12071361
申请日：2008-02-20
申请人： Naoyuki Machida , Akihiro Kitaguchi , Shigenori Shibue , Yoshinori Asamura
发明人： Naoyuki Machida , Akihiro Kitaguchi , Shigenori Shibue , Yoshinori Asamura
IPC分类号： G06F3/033
CPC分类号： G06F3/0425 , G06F3/0346 , H04N9/3194
摘要： An object of the present invention is to provide a position detecting device that allows simultaneous use by a plurality of users by recognizing positional information about a plurality of pointers and associating the pointers and the users. A position detecting device of the invention includes a rear projector (1) that projects an image, a projection screen (3) that displays the image projected from the rear projector (1), imaging means (4) that is located near the rear projector (1) and that takes an image of light rays emitted from pointers (10, 20), from the rear of the projection screen (3), and coordinate calculating means (5b) that analyzes the image taken by the imaging means (4) to detect the two-dimensional positions in the detection areas where the light rays from the pointers (10, 20) are detected.
摘要翻译：本发明的目的是提供一种位置检测装置，其通过识别关于多个指针的位置信息并使指针和用户相关联，允许多个用户同时使用。本发明的位置检测装置包括投影图像的后投影仪（1），显示从后投影仪（1）投射的图像的投影屏幕（3），位于后投影机附近的成像装置（4）（1），并且从投影屏幕（3）的后部拍摄从指针（10,20）发射的光线的图像，以及分析由成像装置（4）拍摄的图像的坐标计算装置（5b）检测来自指针（10,20）的光线的检测区域中的二维位置。

18. 发明申请

US20080150915A1 Position detecting device 有权
标题翻译：位置检测装置
公开(公告)号：US20080150915A1
公开(公告)日：2008-06-26
申请号：US11889041
申请日：2007-08-08
申请人： Shigenori Shibue , Yoshinori Asamura
发明人： Shigenori Shibue , Yoshinori Asamura
IPC分类号： G06F3/042
CPC分类号： G06F3/0421 , G06F3/03542 , G06F3/0386 , G06F2203/04109
摘要： An object is to provide a position detecting device that is able to accurately detect an indicated position via an indicating unit or device even when a water droplet or the like is formed upon the position-detecting-device's surface.The position detecting device comprises: a light-guide plate 1 for placement upon a displaying surface of a displaying device, and made of a translucent material; an emitting unit 2 for emitting, from the sides of the light-guide plate 1, arranged in line along the X-axis and the Y-axis, a plurality of light beams each of a predetermined width, so as to be totally reflected thickness-wise within the light-guide plate 1 and to travel heading in predetermined directions parallel to the plane of the light-guide plate 1; an emission-control unit 3 for controlling the emitting unit 2 so as to make the light beams each scan the light-guide plate 1 in progression along the sides thereof, in an X-axis direction and in a Y-axis direction; at least one indicating device 4 having a light-guiding part 41 for guiding, by contacting the light-guide plate 1, thereinto light traveling within the light-guide plate 1, and a detection unit 42 for outputting, by detecting the light guided via the light-guiding part 41, a detection signal; and a coordinate calculating unit 43 for calculating, based on a scanned position derived from the detection signal and the emission-control unit 3, a coordinate position where the at least one indicating device 4 contacts the light-guide plate 1.
摘要翻译：目的是提供一种位置检测装置，即使在位置检测装置的表面上形成水滴等时，也能够通过指示单元或装置精确地检测指示位置。位置检测装置包括：导光板1，用于放置在显示装置的显示表面上，并由半透明材料制成; 发光单元2，其从导光板1的侧面沿着X轴和Y轴排列成多个预定宽度的多个光束，以使其全反射厚度并且在平行于导光板1的平面的预定方向上行进; 发光控制单元3，用于控制发光单元2，以使光束沿X轴方向和Y轴方向沿着其侧面逐渐扫描导光板1; 至少一个指示装置4具有导光部41，用于通过使导光板1与导光板1内的光线接触而引导，以及检测单元42，用于通过检测导光板导光部41，检测信号; 以及坐标计算单元43，用于基于从检测信号和排放控制单元3导出的扫描位置，计算至少一个指示装置4与导光板1接触的坐标位置。

19. 发明授权

US07376184B2 High-efficiency encoder and video information recording/reproducing apparatus 失效
公开(公告)号：US07376184B2
公开(公告)日：2008-05-20
申请号：US10286750
申请日：2002-11-04
申请人： Tomohiro Ueda , Takashi Itow , Yoshinori Asamura , Ken Onishi , Hidetoshi Mishima
发明人： Tomohiro Ueda , Takashi Itow , Yoshinori Asamura , Ken Onishi , Hidetoshi Mishima
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66
CPC分类号： H04N9/8042 , G11B20/00007 , G11B27/005 , G11B27/032 , G11B27/036 , G11B27/28 , G11B2220/20 , G11B2220/90 , G11B2220/91 , H04N5/78263 , H04N5/78266 , H04N5/9262 , H04N5/9264 , H04N5/928 , H04N7/012 , H04N9/8063 , H04N9/83 , H04N9/8355 , H04N19/105 , H04N19/107 , H04N19/114 , H04N19/115 , H04N19/136 , H04N19/137 , H04N19/142 , H04N19/172 , H04N19/177 , H04N19/179 , H04N19/18 , H04N19/42 , H04N19/46 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/87
摘要： In a high-efficiency encoder which performs motion-compensation prediction, an intra-field is set every n fields. The presence of a scene change is detected. When a scene change occurs, a reference picture of motion-compensation prediction is switched, or the field immediately after the scene change is set as an intra-field.

20. 发明申请

US20080074623A1 Projection display and adjusting method thereof 有权
标题翻译：投影显示及其调整方法
公开(公告)号：US20080074623A1
公开(公告)日：2008-03-27
申请号：US11806199
申请日：2007-05-30
申请人： Kensuke Odagiri , Akihiro Kitaguchi , Yoshinori Asamura
发明人： Kensuke Odagiri , Akihiro Kitaguchi , Yoshinori Asamura
IPC分类号： G03B21/14 , G03B21/00
CPC分类号： G03B21/14 , H04N9/3185
摘要： A projection display includes a projection unit projecting an image on a screen, an image processor capable of adjusting an image display area where an image is projected on the screen by processing an image signal to be input to the projection unit, and an image-outline adjusting mechanism supporting the projection unit and capable of adjusting the image display area by positioning the projection unit. The image processor is capable of adjusting the image display area in one translational degree of freedom, and the image-outline adjusting mechanism is capable of positioning the projection unit in five degrees of freedom except for one translational degree of freedom.
摘要翻译：投影显示器包括投影屏幕上的图像的投影单元，能够通过处理输入到投影单元的图像信号来调整图像投影到屏幕上的图像显示区域的图像处理器，以及图像轮廓调节机构，其支撑投影单元并且能够通过定位投影单元来调整图像显示区域。图像处理器能够以一个平移自由度调整图像显示区域，并且图像轮廓调整机构能够将投影单元定位在除了一个平移自由度之外的五个自由度中。

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