Interactive input system with improved signal-to-noise ratio (SNR) and image capture method
    1.
    发明授权
    Interactive input system with improved signal-to-noise ratio (SNR) and image capture method 有权
    具有改进的信噪比(SNR)和图像捕获方法的交互式输入系统

    公开(公告)号:US08902195B2

    公开(公告)日:2014-12-02

    申请号:US12873998

    申请日:2010-09-01

    IPC分类号: G06F3/042 G06F3/038 G06F3/041

    摘要: An input panel for an interactive input system comprises an optical waveguide; a first radiation source directing radiation into said optical waveguide, said radiation undergoing total internal reflection within said optical waveguide; a diffusion layer adjacent to and on one side of the optical waveguide, totally internally reflected light being frustrated and escaping the optical waveguide in response to pointer contacts on the diffusion layer; a second radiation source directing radiation towards another side of the optical waveguide that is opposite the one side; and at least one imaging device having a field of view looking at the optical waveguide and capturing image frames, wherein said first and second radiation sources are turned on and off in succession and wherein said first radiation source is turned off when said second radiation source is on and wherein said first radiation source is turned on when said second radiation source is off.

    摘要翻译: 用于交互式输入系统的输入面板包括光波导; 将辐射引导到所述光波导中的第一辐射源,所述辐射在所述光波导内经历全内反射; 邻近于光波导的一侧的扩散层,响应于扩散层上的指示器接触,全内反射光被挫折并逸出光波导; 第二辐射源将辐射引导到所述光波导的与所述一侧相对的另一侧; 以及至少一个成像装置,其具有观察光波导的视场并捕获图像帧,其中所述第一和第二辐射源被连续地导通和断开,并且其中当所述第二辐射源是 并且其中当所述第二辐射源关闭时,所述第一辐射源被接通。

    INTERACTIVE INPUT SYSTEM WITH IMPROVED SIGNAL-TO-NOISE RATIO (SNR) AND IMAGE CAPTURE METHOD
    2.
    发明申请
    INTERACTIVE INPUT SYSTEM WITH IMPROVED SIGNAL-TO-NOISE RATIO (SNR) AND IMAGE CAPTURE METHOD 有权
    具有改进的信号噪声比(SNR)和图像捕获方法的交互输入系统

    公开(公告)号:US20110050650A1

    公开(公告)日:2011-03-03

    申请号:US12873998

    申请日:2010-09-01

    IPC分类号: G06F3/042

    摘要: An input panel for an interactive input system comprises an optical waveguide; a first radiation source directing radiation into said optical waveguide, said radiation undergoing total internal reflection within said optical waveguide; a diffusion layer adjacent to and on one side of the optical waveguide, totally internally reflected light being frustrated and escaping the optical waveguide in response to pointer contacts on the diffusion layer; a second radiation source directing radiation towards another side of the optical waveguide that is opposite the one side; and at least one imaging device having a field of view looking at the optical waveguide and capturing image frames, wherein said first and second radiation sources are turned on and off in succession and wherein said first radiation source is turned off when said second radiation source is on and wherein said first radiation source is turned on when said second radiation source is off.

    摘要翻译: 用于交互式输入系统的输入面板包括光波导; 将辐射引导到所述光波导中的第一辐射源,所述辐射在所述光波导内经历全内反射; 邻近于光波导的一侧的扩散层,响应于扩散层上的指示器接触,全内反射光被挫折并逸出光波导; 第二辐射源将辐射引导到所述光波导的与所述一侧相对的另一侧; 以及至少一个成像装置,其具有观察光波导的视场并捕获图像帧,其中所述第一和第二辐射源被连续地导通和断开,并且其中当所述第二辐射源是 并且其中当所述第二辐射源关闭时,所述第一辐射源被接通。