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    • 21. 发明申请
    • Spatially Masked Update for Electronic Paper Displays
    • 电子纸显示屏的空间蒙版更新
    • US20080309612A1
    • 2008-12-18
    • US12059085
    • 2008-03-31
    • Michael J. GormishGuotong Feng
    • Michael J. GormishGuotong Feng
    • G09G3/38
    • G02F1/167G09G3/3433G09G3/344G09G2300/0473G09G2320/0247G09G2320/0252G09G2320/0257G09G2360/18G09G2380/02
    • Electronic Paper Displays can suffer from “ghosting” or previous images remaining partially visible after the display has updated to show a new image. A pseudo-random noise intermediate image is used to make the ghosting less visible to human observers. Further, other intermediate images can be used to convey visible information or to convey secret information, e.g. a watermark. A control signal for driving the bi-stable display from the current optical state to an intermediate state, then to a final optical state is also determined. In some embodiments, the intermediate state for each pixel is determined in a pseudo-random manner. The pseudo-random noise values are applied to the bi-stable display to remove noise and other artifacts from the end resulting images. The determined control signal is applied to the bi-stable display to drive the bi-stable to the intermediate state, then to the final optical state.
    • 电子纸显示器可能会在显示更新后显示新图像时遭受“重影”或以前的图像部分可见。 伪随机噪声中间图像用于使重影对人类观察者不太可见。 此外,其他中间图像可以用于传送可见信息或传送秘密信息,例如, 水印。 还确定了用于将双稳态显示器从当前光学状态驱动到中间状态,然后到最终光学状态的控制信号。 在一些实施例中,以伪随机方式确定每个像素的中间状态。 伪随机噪声值被施加到双稳态显示器以从结果图像中去除噪声和其他伪影。 将确定的控制信号施加到双稳态显示器以将双稳态驱动到中间状态,然后到最终光学状态。
    • 24. 发明授权
    • Spatially masked update for electronic paper displays
    • 电子纸显示屏的空间屏蔽更新
    • US08319766B2
    • 2012-11-27
    • US12059085
    • 2008-03-31
    • Michael J. GormishGuotong Feng
    • Michael J. GormishGuotong Feng
    • G09G5/00
    • G02F1/167G09G3/3433G09G3/344G09G2300/0473G09G2320/0247G09G2320/0252G09G2320/0257G09G2360/18G09G2380/02
    • Electronic Paper Displays can suffer from “ghosting” or previous images remaining partially visible after the display has updated to show a new image. A pseudo-random noise intermediate image is used to make the ghosting less visible to human observers. Further, other intermediate images can be used to convey visible information or to convey secret information, e.g. a watermark. A control signal for driving the bi-stable display from the current optical state to an intermediate state, then to a final optical state is also determined. In some embodiments, the intermediate state for each pixel is determined in a pseudo-random manner. The pseudo-random noise values are applied to the bi-stable display to remove noise and other artifacts from the end resulting images. The determined control signal is applied to the bi-stable display to drive the bi-stable to the intermediate state, then to the final optical state.
    • 电子纸显示器可能遭受重影或以前的图像在显示更新后显示新图像后仍然部分可见。 伪随机噪声中间图像用于使重影对人类观察者不太可见。 此外,其他中间图像可以用于传送可见信息或传送秘密信息,例如, 水印。 还确定了用于将双稳态显示器从当前光学状态驱动到中间状态,然后到最终光学状态的控制信号。 在一些实施例中,以伪随机方式确定每个像素的中间状态。 伪随机噪声值被施加到双稳态显示器以从结果图像中去除噪声和其他伪影。 将确定的控制信号施加到双稳态显示器以将双稳态驱动到中间状态,然后到最终光学状态。
    • 29. 发明授权
    • Driver for page transitions in an electronic paper device
    • 用于电子纸设备中的页面转换的驱动程序
    • US09159274B2
    • 2015-10-13
    • US13042450
    • 2011-03-07
    • Bradley J. RhodesGuotong FengEdward L. Schwartz
    • Bradley J. RhodesGuotong FengEdward L. Schwartz
    • G09G3/20G09G3/34
    • G09G3/344G09G3/2007G09G2310/06G09G2340/16
    • A system and a method for updating an electronic paper display are disclosed. A memory includes a waveform table and a transition matrix including multiple pixels, each representing a pixel of the electronic paper display. A page transition display system is coupled to the memory and identifies waveforms from the waveform table associated with multiple transition matrix pixels by processing multiple transition matrix pixels in parallel. For example, the page transition display system loads multiple transition matrix pixels into a register and accesses the waveform table using the contents of the register. Using the identified waveforms, the page transition display system generates control signals used to modify the electronic paper device.
    • 公开了一种更新电子纸显示器的系统和方法。 存储器包括波形表和包括多个像素的转移矩阵,每个像素表示电子纸显示器的像素。 页面转换显示系统通过并行处理多个转换矩阵像素而耦合到存储器并且识别与多个转换矩阵像素相关联的波形表中的波形。 例如,页面转换显示系统将多个转换矩阵像素加载到寄存器中,并使用寄存器的内容访问波形表。 使用识别的波形,页面转换显示系统产生用于修改电子纸设备的控制信号。