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    • 58. 发明授权
    • Device for measuring human performance
    • 用于测量人类表现的设备
    • US4983125A
    • 1991-01-08
    • US430490
    • 1989-11-01
    • James C. SmithR. Wade AllenHenry R. Jex
    • James C. SmithR. Wade AllenHenry R. Jex
    • G09B19/00
    • G09B19/00
    • A device for measuring the ability of a human operator to stabilize an inherently unstable system so as to maintain an output signal on a display terminal within a preset limit. The difficulty is automatically increased at a relatively fast rate until the human operator approaches the limits of his ability to maintain the output signal within the limits. The difficulty is then increased at a relatively slow rate until the human operator is no longer able to maintain the output of the testing device within preselected limits. The device is mechanized using a general purpose microprocessor and utilizes binary shifts rather than multiplication or division operations in order to achieve real time operation at a sufficiently fast rate in order to test the limits of human ability. The device also provides for the measurement of the ability of the human operator after an adaptation or training period by maintaining the instability of the system at a predetermined level while monitoring and measuring the number of times that the human operator loses control of the output signal during a predetermined period of testing and by measuring and monitoring the period of time that elapses before the first loss of such control. The computational procedure utilized in the device includes provisions for avoiding a flickering effect that otherwise would appear on the display terminal.
    • 一种用于测量人类操作者稳定本体不稳定系统以将显示终端上的输出信号保持在预设极限内的能力的装置。 难度自动以相对较快的速度增加,直到人类操作者接近将其输出信号保持在限度内的能力的极限。 然后以相对较慢的速率增加难度,直到人类操作者不再能够将测试装置的输出保持在预选的极限内。 该器件使用通用微处理器进行机械化,并且利用二进制移位而不是乘法或除法运算,以便以足够快的速率实现实时操作,以便测试人类能力的极限。 该装置还通过将系统的不稳定性保持在预定水平,同时监视和测量人类操作者在输出信号的控制期间失去控制的次数,从而在适应或训练周期之后测量人员的能力 预定的测试时间段,并通过测量和监测在首次丢失此类控制之前经过的时间段。 在设备中使用的计算程序包括避免显示终端出现的闪烁效应的规定。
    • 59. 发明授权
    • Device for encouraging children to brush their teeth regularly
    • 鼓励孩子定期刷牙的装置
    • US4878845A
    • 1989-11-07
    • US167395
    • 1988-03-14
    • Tom E. LindsayJames C. Smith
    • Tom E. LindsayJames C. Smith
    • G09B1/20G09B19/00
    • G09B19/0084G09B1/20
    • A device for aiding and encouraging a child to brush his or her teeth regularly. The device is provided with a pair of nonrotatable shafts each of which mounts seven rotatable blocks shaped like a molar tooth, each block representing either the morning or night of a particularly day during which a child should brush his teeth. The front surface faces of the blocks form a frowning mouth with dirty teeth, while the rear surface faces form a pattern of a smiling mouth with white teeth after all of the blocks have been rotated 180 degrees. Each block is rotated to expose a portion of the smile and to remove a portion of the frown after each tooth brushing in the morning and evening of each day.
    • 帮助和鼓励孩子定期刷牙的装置。 该装置设置有一对不可旋转的轴,每个轴安装七个可旋转的块,其形状像臼齿一样,每个块代表儿童刷牙的特定日子的早晨或晚上。 块的前表面形成具有肮脏牙齿的皱眉,而在所有的块已经旋转180度后,后表面在形成具有白色牙齿的微笑口腔的图案。 旋转每个块以暴露一部分微笑,并在每天的早晨和晚上刷牙后清除皱眉的一部分。