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1. 发明专利

JP2007006115A Projector with distortion correcting means 有权
标题翻译：投影机具有失真校正手段
公开(公告)号：JP2007006115A
公开(公告)日：2007-01-11
申请号：JP2005183554
申请日：2005-06-23
申请人： Nec Viewtechnology Ltd , Necビューテクノロジー株式会社
发明人： NISHIDA MICHIYA
IPC分类号： H04N5/74 , G03B21/00 , G06T3/00 , G09G3/20 , G09G5/00
CPC分类号： G03B21/14 , G06F3/1415 , G09G2320/02 , G09G2320/0261 , H04N5/74 , H04N9/3185 , H04N9/3194
摘要： PROBLEM TO BE SOLVED: To provide a projector that allows one operator alone to easily correct the distortion even for a large swing angle in the horizontal direction. SOLUTION: The projector 10 has a vertical direction acceleration sensor 41 for detecting the inclination angle of the projector 10 to the vertical direction, and two horizontal direction acceleration sensors 42, 43 disposed at separate positions in the projector 10 for detecting the travel distance in the horizontal direction. An image controller 30 comprises a correction angle calculator 31 for calculating the correction angle from a declined angle detected by the vertical direction acceleration sensor 41, and calculating the turn angle, when turning the projector 10, from the distance between the two horizontal direction acceleration sensors 42, 43 and their travel distances to take it as a horizontal direction correction angle; and a distortion corrector 33 for correcting the distortion of an output image by a projector 20, based on the calculated correction angles in the vertical and horizontal directions. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种投影仪，即使在水平方向上的大的摆动角度下，也能够使操作者单独地容易地校正失真。解决方案：投影仪10具有用于检测投影仪10相对于垂直方向的倾斜角度的垂直方向加速度传感器41和设置在投影仪10中用于检测行驶的分离位置的两个水平方向加速度传感器42,43 水平方向的距离。图像控制器30包括校正角计算器31，用于根据垂直方向加速度传感器41检测到的倾斜角计算校正角，并且当从两个水平方向加速度传感器之间的距离转动投影仪10时，计算转角 42,43及其行驶距离作为水平方向校正角; 以及用于基于所计算的垂直和水平方向的校正角度来校正投影仪20的输出图像的失真的失真校正器33。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2007166280A Projector, screen for projector and projector image display system 有权
标题翻译：投影机，投影机和投影机图像显示系统屏幕
公开(公告)号：JP2007166280A
公开(公告)日：2007-06-28
申请号：JP2005360330
申请日：2005-12-14
申请人： Nec Viewtechnology Ltd , Necビューテクノロジー株式会社
发明人： NISHIDA MICHIYA
IPC分类号： H04N5/74 , G03B21/00 , G03B21/10
摘要： PROBLEM TO BE SOLVED: To provide a projector and a screen for the projector in which installation position can be adjusted such that the screen surface becomes perpendicular to the optical axis in the center of the screen by an extremely simple technique.
SOLUTION: The screen 70 attaching reflectors 72 and 73 is installed in the center of the upper or lower end frame of the screen or in the center of the upper and lower end frames of the screen. A test pattern including a vertical line of high brightness is projected to the center of an image from a projector 10, the vertical line 77 of the test pattern is applied to the reflector 72 and reflected thereon by regulating optical zoom or optical shift, and the light 75 reflected from the reflector onto the floor is aligned with the projection line in the vertical direction of the projection optical axis 27.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于投影仪的投影仪和屏幕，其中可以通过非常简单的技术在屏幕中心处垂直于光轴垂直于屏幕的安装位置。
解决方案：安装反射器72和73的屏幕70安装在屏幕的上端或下端框架的中心或屏幕的上端框架和下端框架的中心。将包括高亮度的垂直线的测试图案投影到来自投影仪10的图像的中心，测试图案的垂直线77被施加到反射器72并通过调节光学变焦或光学偏移在其上反射，并且从反射器反射到地板上的光75在投影光轴27的垂直方向上与投影线对准。（C）2007，JPO＆INPIT

3. 发明专利

JP2005354566A Multi-screen linking projection system and image memory control method 有权
标题翻译：多画面连接投影系统和图像存储器控制方法
公开(公告)号：JP2005354566A
公开(公告)日：2005-12-22
申请号：JP2004175240
申请日：2004-06-14
申请人： Nec Viewtechnology Ltd , Necビューテクノロジー株式会社
发明人： NISHIDA MICHIYA
IPC分类号： G03B21/10 , G03B21/14 , G09G5/00 , H04N5/74
摘要： PROBLEM TO BE SOLVED: To perform installation adjustment of a projector, without requiring a device of adjustment such as an image processor and a special signal for adjustment.
SOLUTION: When installation adjustment is performed by arranging a plurality of projectors to the left and the right, the left and the right of an image stored in an image memory in screens for installation adjustment to be projected and displayed on screens are replaced in each of the plurality of projectors and an image is read from the image memory so that each of left and right picture ends to be a part, where the pictures of each projector overlap becomes the identical image. At this state, the projectors are arranged in left and right, projected, displayed and the installation adjustment of the projectors is performed so that an image in an area A2 at the right end of the picture projected from a left projector matches the image of an area A1 at the left and of the screen projected from a right projector.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：执行投影机的安装调整，而不需要诸如图像处理器的调整装置和用于调整的特殊信号。
解决方案：当通过将多个投影仪布置在左侧和右侧进行安装调整时，替换存储在图像存储器中的图像的左侧和右侧用于在屏幕上投影和显示的用于安装调整的屏幕被替换在多个投影仪中的每一个中，并且从图像存储器读取图像，使得左右图像中的每一个结束为每个投影仪的图像重叠的部分成为相同的图像。在这种状态下，投影机被布置成左右投影显示，并且执行投影仪的安装调整，使得从左侧投影仪投射的图像右侧的区域A2中的图像与从右投影仪投影的左侧和屏幕上的区域A1。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2004228619A Method of adjusting distortion in video image of projector 审中-公开
标题翻译：调整投影机视频图像失真的方法
公开(公告)号：JP2004228619A
公开(公告)日：2004-08-12
申请号：JP2003010459
申请日：2003-01-17
申请人： Nec Viewtechnology Ltd , Necビューテクノロジー株式会社
发明人： NISHIDA MICHIYA
IPC分类号： H04N5/74 , H04N9/31 , H04N17/00
摘要： PROBLEM TO BE SOLVED: To correct distortion in an image projected on a screen comprising a curved face from a projector by means of only a projector apparatus having an on-screen function.
SOLUTION: A method of adjusting distortion in the video image of the projector comprises: projecting an original image onto a screen on an inner face of a cylinder; projecting a plurality of pointers P11, P12, P13, P14, P15 onto a horizontal line of a video image tying uppermost parts at both ends of the video image at an equal interval when viewing from a view point, projecting a plurality of pointers P13, P23, P33, P34, P35 also on a vertical line passing through the center of the horizontal line; generating correction data to eliminate distortion on each point on the original image when viewing from the view point depending on a positional deviation between a point on the original image corresponding to each pointer and a corresponding point on the original image when no distortion exists; interpolating correction data of each intermediate point between the adjacent pointers to obtain the result; generating a correction value map of the entire original image and storing the map; correcting the position of each point on the input original image; and projecting the resulting position at image projection.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：通过仅具有屏幕功能的投影仪装置来校正投影在包括投影仪的弯曲面的屏幕上的图像的变形。解决方案：一种调整投影仪视频图像失真的方法，包括：将原始图像投影到圆筒内表面的屏幕上; 将多个指针P11，P12，P13，P14，P15投影到视频图像的水平线上，在从视点观看时以等间隔将视频图像的两端的最上方部分拼接，投影多个指针P13， P23，P33，P34，P35也在穿过水平线的中心的垂直线上; 产生校正数据，以消除当不存在失真时，根据在与每个指针相对应的原始图像上的点与原始图像上的对应点之间的位置偏离从视点观看时，原始图像上的每个点上的失真; 在相邻指针之间插入每个中间点的校正数据，以获得结果; 生成整个原始图像的校正值图并存储该图; 校正输入原始图像上每个点的位置; 并且在图像投影时投影所得到的位置。版权所有（C）2004，JPO＆NCIPI

5. 发明专利

JP2004170543A Projector with automatic distortion correcting function 审中-公开
标题翻译：投影机具有自动失真校正功能
公开(公告)号：JP2004170543A
公开(公告)日：2004-06-17
申请号：JP2002334170
申请日：2002-11-18
申请人： Nec Viewtechnology Ltd , Necビューテクノロジー株式会社
发明人： NISHIDA MICHIYA
IPC分类号： G03B21/14
摘要： PROBLEM TO BE SOLVED: To automatically correct the distortion of an image projected obliquely to a screen from a projector by digital processing without using a test pattern.
SOLUTION: The projector with an automatic distortion correcting function is equipped with a PC card slot 10 for fetching image data from a PC card, and a two-dimensional image processing part 15 performing two-dimensional image processing for correcting the distortion of the projected image. Based on the image data read by a PC card reading part 11 by connecting the PC card where the image projected on the screen is taken and recorded by a digital camera to the PC card slot 10, distortion correction data for the projected image is calculated in a correction data arithmetic part 20 and stored in a correction data memory 21. Then, the two-dimensional image processing is performed by using the correction data stored in the correction data memory by the processing part 15.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：通过数字处理自动校正投影仪从投影机倾斜投影的图像的失真，而不使用测试图案。
解决方案：具有自动失真校正功能的投影仪配备有用于从PC卡取出图像数据的PC卡插槽10和执行二维图像处理的二维图像处理部分15，用于校正失真的失真投影图像。基于PC卡读取部分11读取的图像数据，连接PC卡，其中投影在屏幕上的图像被数字照相机拍摄并记录到PC卡槽10，用于计算投影图像的失真校正数据校正数据运算部分20，并存储在校正数据存储器21中。然后，通过使用由处理部分15存储在校正数据存储器中的校正数据来执行二维图像处理。版权所有（C） 2004年，日本特许厅

6. 发明专利

JP2005309142A The video display device 有权
标题翻译：视频显示设备
公开(公告)号：JP2005309142A
公开(公告)日：2005-11-04
申请号：JP2004126838
申请日：2004-04-22
申请人： Nec Viewtechnology Ltd , Necビューテクノロジー株式会社
发明人： NISHIDA MICHIYA
IPC分类号： G09G3/36 , G09G3/20 , G09G5/00 , G09G5/36 , H04N5/50 , H04N5/66
CPC分类号： G09G5/00 , G09G2340/0492
摘要： PROBLEM TO BE SOLVED: To provide a video display device that enables a user to control the direction of a display picture to an easy-to-see direction even when the video display device is installed having its display screen substantially in parallel to the ground surface. SOLUTION: A detection part 13 outputs a 1st detection signal indicating the distance to a body present in the direction shown by an arrow (a) and a detection part 14 outputs a 2nd detection signal indicating the distance to an object present in the direction shown by an arrow (b); and a detection part 15 outputs a 3rd detection signal indicating the distance to an object present in the direction shown by an arrow (c) and a detection part 16 outputs a 4th detection signal indicating the distance to an object present in the direction shown by an arrow (d). A control circuit selects the detection signal indicating the shortest distance among the 1st, 2nd, 3rd, and 4th detection signals and controls the direction of a picture displayed on the display screen 11 so that the bottom of the picture is on the side corresponding to the detection part having outputted the selected detection signal. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种视频显示装置，即使当安装了其显示屏幕基本上平行于视频显示装置的视频显示装置时，使用户能够将显示图像的方向控制到易于观看的方向地面。解决方案：检测部分13输出指示与箭头（a）所示方向上存在的身体的距离的第一检测信号，检测部分14输出指示与存在于该物体中的物体的距离的第二检测信号箭头（b）所示的方向; 并且检测部分15输出指示与箭头（c）所示方向上存在的物体的距离的第三检测信号，并且检测部分16输出表示与存在于由箭（d）。控制电路选择表示第一，第二，第三和第四检测信号中最短距离的检测信号，并控制显示在显示屏11上的图像的方向，使得图像的底部位于对应于检测部件输出所选择的检测信号。版权所有（C）2006，JPO＆NCIPI

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