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    • 1. 发明授权
    • Multi-point motion picture encoding and decoding apparatus
    • 多点运动图像编解码装置
    • US5568184A
    • 1996-10-22
    • US440710
    • 1995-05-15
    • Koichi ShibataTaizo Kinoshita
    • Koichi ShibataTaizo Kinoshita
    • H04N7/15H04N7/26H04N7/50H04N21/2365H04N21/434
    • H04N21/4347H04N19/423H04N19/61H04N21/2365H04N7/15H04N7/152H04N19/30Y10S370/902
    • A display system for displaying a plurality of video windows on a display screen. A receiving element is included for receiving video data packets from a plurality of video sources in a time sharing manner, each of the video data packets including: coded video information for representing a partial image contained within one of a plurality of blocks constituting a video frame; attribute information for indicating at least a location of a block corresponding thereto within the video frame; and identification information of the video source. A decoder element is connected to the receiving element for decoding the coded video information extracted from each of the video data packets and for outputting a partial image corresponding to one of the blocks in the video frame. A set of frame memories are included for assembling partial images into video frames, each of the frame memories having a plurality of window areas located in a predetermined layout defined therein, and a set of the window areas each located at a same location within respective frame memories being associated with a same video source with respect to each other. A writing element is included for writing each partial image derived from the decoder element into one of the window areas within one of the frame memories which is specified in accordance with the identification information extracted from a video data packet related to the partial image and a utilization status of the window areas. Finally, an outputting element is included for selectively outputting contents of the frame memories on a display screen by changing over the frame memories depending upon a display position on the display screen thereby to present a plurality of video frames at a plurality of window areas on the display screen.
    • 一种用于在显示屏幕上显示多个视频窗口的显示系统。 包括接收元件,用于以时分方式从多个视频源接收视频数据分组,每个视频数据分组包括:用于表示包含在构成视频帧的多个块之一内的部分图像的编码视频信息 ; 属性信息,用于指示视频帧内至少与其对应的块的位置; 和视频源的识别信息。 解码器元件连接到接收元件,用于对从每个视频数据包提取的编码视频信息进行解码,并输出与视频帧中的一个块对应的部分图像。 包括一组帧存储器,用于将部分图像组合成视频帧,每个帧存储器具有位于其中定义的预定布局中的多个窗口区域,以及一组各自位于相应帧内的相同位置处的窗口区域 存储器相对于彼此与相同的视频源相关联。 包括写入元件,用于将从解码器元件导出的每个部分图像写入根据与部分图像相关的视频数据包提取的识别信息指定的一个帧存储器中的一个窗口区域中,以及利用 窗口区域的状态。 最后,包括输出元件,用于通过根据显示屏幕上的显示位置改变帧存储器来在显示屏上选择性地输出帧存储器的内容,从而在多个窗口区域上呈现多个视频帧 显示屏。
    • 4. 发明授权
    • Multi-point visual communication system
    • 多点视觉通信系统
    • US5617135A
    • 1997-04-01
    • US299633
    • 1994-09-02
    • Fumio NodaKoichi ShibataTaizo Kinoshita
    • Fumio NodaKoichi ShibataTaizo Kinoshita
    • H04N7/15H04N7/14H04N7/52H04N7/60H04N7/10
    • H04N7/147H04N19/61H04N19/80H04N19/82H04N21/236H04N21/434H04N7/52
    • A multi-point visual communication system which includes an adaptive filter part for controlling a spatial frequency characteristic of a video signal, a filter selector for selecting a video quality to be transmitted from its own site on the basis of integrated requests received from sites, and a filter control for adaptively controlling a filter characteristic taking both of a video information quantity and situations of a telecommunication network into consideration, and wherein a video signal processed by the adaptive filter part is subjected to an encoding operation and then transmitted to the telecommunication network. Thereby, the video quality can be selected according to users' requests, and the video quality of the multi-point visual communication can be improved without incurring an excessive increase of a video information quantity. Further, through the video signal processing taking both the video characteristic and the telecommunication network situations into consideration, a comparatively high quality of video transmission can be realized when viewed from an information quantity.
    • 一种多点视觉通信系统,包括:用于控制视频信号的空间频率特性的自适应滤波器部分;滤波器选择器,用于根据从站点接收到的综合请求,从其自身站点中选择要发送的视频质量;以及 滤波器控制,用于考虑视频信息量和电信网络的情况自适应地控制滤波器特性,并且其中由自适应滤波器部分处理的视频信号进行编码操作,然后发送到电信网络。 因此,可以根据用户的请求选择视频质量,并且可以提高多点可视通信的视频质量,而不会导致视频信息量的过度增加。 此外,通过考虑视频特性和电信网络情况的视频信号处理,当从信息量观察时,可以实现较高质量的视频传输。
    • 5. 发明授权
    • Planar light source device and display apparatus using the same
    • 平面光源装置及其使用的显示装置
    • US08459857B2
    • 2013-06-11
    • US13069984
    • 2011-03-23
    • Koichi ShibataTakuya Sakamoto
    • Koichi ShibataTakuya Sakamoto
    • F21V7/04
    • G02B6/009G02B6/0031G02B6/0068G02B6/0073
    • A planar light source device comprising: a plurality of point light; a light guide plate including an incident surface, wherein the light spread out into a planar shape and the light guide plate emits the light from an emitting surface; and a frame including an opening, wherein the frame has a protrusion that is provided on a light source side of a peripheral end portion of the emitting surface of the light guide plate, wherein the point light sources are arranged at the light source side, wherein the protrusion has difference widths parallel to the emitting surface, and wherein a width of a portion of the protrusion, which corresponds to the position where the point of the point light source is arranged, is wider than a width of a portion of the protrusion, which corresponds to a position between the point light sources.
    • 一种平面光源装置,包括:多个点光源; 包括入射表面的导光板,其中所述光展开成平面形状,并且所述导光板从发射表面发射光; 以及包括开口的框架,其中所述框架具有设置在所述导光板的所述发射表面的周边端部的光源侧的突起,其中所述点光源布置在所述光源侧,其中, 突起具有与发射表面平行的差异宽度,并且其中突出部分的对应于点光源的点的位置的宽度比突起的一部分的宽度宽, 其对应于点光源之间的位置。
    • 9. 发明授权
    • Near field optical head and information recording and reproducing apparatus mounted with the near field optical head
    • 近场光头和安装有近场光头的信息记录和再现装置
    • US07113669B2
    • 2006-09-26
    • US11155956
    • 2005-06-17
    • Masakazu HirataManabu OumiKoichi Shibata
    • Masakazu HirataManabu OumiKoichi Shibata
    • G02B6/26
    • G11B7/122G11B7/1384G11B7/1387
    • In order to provide a near field light head capable of guiding light efficiently to a near field light generating element, capable of being fabricated easily and at low cost and in correspondence with small-sized formation and thin-sized formation, the near field light head of the present invention has a transparent board including a near field light generating element at a lower face thereof. An upper face or the interior of the transparent board is formed with a lens to be opposed to the near field light generating element. The upper face of the transparent board is mounted with a single mode fiber. The single mode fiber is successively connected with a graded index (GI) fiber and a coreless fiber. An end face of the coreless fiber which is not connected to the GI fiber constitutes a reflecting face disposed at 45 degrees relative to the upper face of the transparent board. The reflecting face is arranged right above the lens.
    • 为了提供能够有效地将光引导到近场光产生元件的近场光头,能够容易且成本低廉并且与小尺寸地层和薄型结构对应地制造近场光头 本发明的透明板包括在其下表面的近场光产生元件。 透明板的上表面或内部形成有与近场光产生元件相对的透镜。 透明板的上表面安装有单模光纤。 单模光纤与渐变折射率(GI)光纤和无芯光纤连续相连。 未连接到GI纤维的无芯纤维的端面构成相对于透明板的上表面设置成45度的反射面。 反射面设置在透镜正上方。