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    Projection type video display device
    2.
    发明授权
    Projection type video display device 有权

    公开(公告)号：US12058478B2

    公开(公告)日：2024-08-06

    申请号：US17421212

    申请日：2019-01-08

    申请人： Maxell, Ltd.

    发明人： Eriko Nagata ,  Naoya Oka ,  Kenichi Iwahara

    IPC分类号： H04N9/31 ,  G03B21/20

    CPC分类号： H04N9/3155 ,  G03B21/2053 ,  H04N9/3182

    摘要： A projection type video display apparatus is configured to include a projection optical system, an image processor, and a controller. The controller is configured to control the image processor to perform a blending process for partially changing the brightness of projection videos. The controller is configured to perform control to set a mode of the projection type video display apparatus to a blending adjustment mode in which a user adjusts the blending process performed by the image processor. In the blending adjustment mode, the controller is configured to perform control to generate a menu image of the blending adjustment menu and display the menu image in the projection video. In the blending adjustment mode, the controller automatically changes a display position of the blending adjustment menu according to a position of a blending adjustment region that is a region to be adjusted by the blending process.

    PRESENTATION SYSTEM AND DISPLAY DEVICE FOR USE IN THE PRESENTATION SYSTEM
    5.
    发明申请
    PRESENTATION SYSTEM AND DISPLAY DEVICE FOR USE IN THE PRESENTATION SYSTEM 审中-公开
    在演示系统中使用的演示系统和显示装置

    公开(公告)号：US20150302626A1

    公开(公告)日：2015-10-22

    申请号：US14790685

    申请日：2015-07-02

    申请人： HITACHI MAXELL, LTD.

    发明人： Yoshiharu Uchida ,  Shinji Onodera ,  Satomi Morishita ,  Kenichi Iwahara

    IPC分类号： G06T11/60 ,  G06F3/0481

    CPC分类号： G06T11/60 ,  G06F3/0425 ,  G06F3/04817 ,  G06F3/04886 ,  H04N5/44504 ,  H04N9/3185 ,  H04N21/4122 ,  H04N21/4143 ,  H04N21/42202 ,  H04N21/4223 ,  H04N21/43632

    摘要： A display device according synthesizes icons and messages with a portion where no descriptive display image is displayed by OSD for display. Icon functions are set by a PC so that the setting of the operation of the PC and the display device, and the setting of an external device can be conducted. The number of lines of the message to be displayed is determined according to distortion correction at the case of oblique projection to correct position coordinates detected by a camera. In a presentation system including an interactive white board device, the display device (for example, a liquid crystal projector), and the PC, the display of the icons are improved to extend the functions, and the display of the messages at the case of oblique projection, and a position detection precision on a screen by the camera incorporated into the display device are improved.

    摘要翻译： 合成图标和消息的显示装置，其中显示OSD不显示描述性显示图像的部分。 图标功能由PC设置，可以进行PC和显示设备的操作设置以及外部设备的设置。 根据在倾斜投影的情况下的失真校正来确定要显示的消息的行数，以校正由相机检测到的位置坐标。 在包括交互式白板装置，显示装置（例如液晶投影仪）和PC的呈现系统中，图标的显示被改进以扩展功能，并且在以下情况下显示消息： 提高了通过嵌入到显示装置中的相机在屏幕上的倾斜投影和位置检测精度。

    VIDEO INFORMATION TERMINAL DEVICE AND VIDEO DISPLAY SYSTEM
    6.
    发明申请
    VIDEO INFORMATION TERMINAL DEVICE AND VIDEO DISPLAY SYSTEM 审中-公开
    视频信息终端设备和视频显示系统

    公开(公告)号：US20150288913A1

    公开(公告)日：2015-10-08

    申请号：US14441544

    申请日：2012-11-09

    申请人： HITACHI MAXELL, LTD.

    发明人： Atsushi Maruyama ,  Kenichi Iwahara ,  Shinji Onodera ,  Masaaki Takatsuji ,  Yusaku Someya ,  Yuta Kawaguchi ,  Tatsuo Murai ,  Atsushi Ishibashi ,  Tatsuya Tokunaga ,  Jihoon Jang

    IPC分类号： H04N5/445 ,  H04L29/06 ,  H04N7/01

    CPC分类号： H04N5/44582 ,  G03B21/00 ,  G06F3/005 ,  G06Q10/109 ,  H04L12/1818 ,  H04L12/1822 ,  H04L65/4015 ,  H04L65/403 ,  H04L65/4038 ,  H04N7/0122 ,  H04N7/152 ,  H04N7/155 ,  H04N9/31

    摘要： A video display system for a meeting includes a video information terminal device typified by a liquid crystal projector, a video display unit typified by a whiteboard, a server which stores information and a user terminal (mobile terminal) held by a member of the meeting. A host of the meeting transmits information regarding the time of the meeting, members, and contents thereof to the server. A reservation list and a participant list are displayed and updated depending on an attendance/nonattendance answer from a member. A diagram or letters written on the whiteboard during the meeting are captured by the video information terminal device, inverted in brightness, stored in a memory, and displayed as a video image. At the end of the meeting, video data is stored as a file. When the meeting is resumed, the stored file is reproduced, developed in the memory, and displayed as a video image.

    摘要翻译： 用于会议的视频显示系统包括以液晶投影仪为代表的视频信息终端装置，以白板为代表的视频显示单元，存储信息的服务器和由会议成员保持的用户终端（移动终端）。 会议主持人将关于会议时间，成员及其内容的信息发送到服务器。 根据会员的出席/非会议答复显示和更新预约列表和参与者列表。 在会议期间在白板上写的图表或字母由视频信息终端装置拍摄，亮度反转，存储在存储器中，并作为视频图像显示。 在会议结束时，视频数据作为文件存储。 当会议恢复时，存储的文件被再现，在存储器中显影并显示为视频图像。