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    • 6. 发明授权
    • Compact illumination and magnification device
    • 小型照明和放大装置
    • US07575329B2
    • 2009-08-18
    • US11305352
    • 2005-12-19
    • James F. Bennett, Jr.
    • James F. Bennett, Jr.
    • G03B29/00F21L4/00
    • G02B25/005G02B25/02
    • A compact and portable device uniformly illuminates and magnifies the words, images, or other information on a surface, such as the words on a page of a book, while minimizing the amount of light transmitted beyond or away from the illuminated surface. The device employs a light transmitting body formed of a transparent light conductive material and a magnifying lens. The device also employs a housing with a light source and a power source for powering the light source. To receive and deflect light from the light source onto the underlying surface, the light transmitting body is configured to have a wedge shape tapering from a thicker edge to a thinner edge. The wedge-shaped light transmitting body and the magnifying lens may be integrally formed to allow seamless transmission of light between the light transmitting body and the magnifying lens.
    • 紧凑且便携的设备均匀地照射和放大表面上的单词,图像或其他信息,例如书的页面上的单词,同时最小化透射超出或远离被照亮表面的光量。 该装置采用由透明导光材料和放大透镜构成的透光体。 该装置还采用具有光源的壳体和用于为光源供电的电源。 为了将来自光源的光接收和偏转到下面的表面上,光透射体被构造成具有从较厚边缘到较薄边缘逐渐变细的楔形。 楔形透光体和放大透镜可以一体地形成,以允许光在透光体和放大透镜之间的无缝透过。
    • 9. 发明授权
    • Synchronization apparatus and method
    • 同步装置及方法
    • US4466111A
    • 1984-08-14
    • US325607
    • 1981-11-27
    • James F. Bennett
    • James F. Bennett
    • H04L7/033H04L25/02H04L7/04
    • H04L7/0331H04L25/0262
    • Synchronization apparatus and method for maintaining synchronization between a binary encoded signal and a timing signal generated in the apparatus and employed in processing the binary encoded signal. The synchronization apparatus includes an up/down binary counter operative to sample the binary encoded signal at a predetermined rate and to count upwardly for each sample of the binary encoded signal having the first logic value and to count downwardly for each sample of the binary encoded signal having the second logic value. A timing signal generated within the synchronization apparatus and including a plurality of pairs of timing pulses is employed to ascertain the values of the counts in the up/down counter at the times of each pair of timing pulses. The values of these counts are examined over a period of several (e.g., 8) pairs of the timing pulses to determine whether the binary encoded signal is in synchronism with, leads, or lags the timing signal. If a lead or lag situation is determined to exist, the timing relationship of the binary encoded signal and the timing signal is altered to bring the signals back into synchronism.
    • 同步装置和方法,用于维持二进制编码信号与在装置中产生并被用于处理二进制编码信号的定时信号之间的同步。 同步装置包括上下二进制计数器,其操作以预定速率对二进制编码信号进行采样,并且对于具有第一逻辑值的二进制编码信号的每个样本向上计数,并向下计数二进制编码信号的每个样本 具有第二逻辑值。 在同步装置内生成并且包括多对定时脉冲的定时信号用于确定每对定时脉冲时刻的向上/向下计数器中的计数值。 在几个(例如,8个)定时脉冲对的周期内检查这些计数的值,以确定二进制编码信号是否与定时信号同步,引导或滞后。 如果确定存在前导或滞后情况,则改变二进制编码信号和定时信号的定时关系,以使信号恢复同步。