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    • 5. 发明授权
    • Repair tool
    • 维修工具
    • US06470729B1
    • 2002-10-29
    • US09683868
    • 2002-02-25
    • John R. HughesSteven HamiltonMark P. PalleschiJames D. Becker
    • John R. HughesSteven HamiltonMark P. PalleschiJames D. Becker
    • B21D508
    • B21D1/06Y10T29/53787Y10T29/5393
    • An opening tool is provided for separating an outer panel of a tailgate, decklid, door or the like from an interior panel in a repair process. The opening tool may work in conjunction with a closing tool which operates to re-secure the outer panel to the interior panel once the necessary repairs have been completed. The removal tool includes a mounting arm, a blade, a shoulder and optionally, a scratch resistor. The mounting arm may be adaptable to be mounted upon an air hammer. Upon removal of the outer door panel, the blade is wedged between the outer door panel and the interior door panel. The blade is integral to the mounting arm and the shoulder. As the blade travels along the hem flange in the removal process, the shoulder maintains the position of the blade as it separates the outer door panel from the interior door panel.
    • 提供一种打开工具,用于在修理过程中将后挡板,甲板,门或类似物的外板从内板分离。 打开工具可以与关闭工具一起工作,一旦完成了必要的修理,操作将外板重新固定到内部面板。 去除工具包括安装臂,叶片,肩部和任选的刮擦电阻器。 安装臂可以适于安装在气锤上。 在移除外门板时,叶片楔入外门板和内门板之间。 刀片与安装臂和肩部是一体的。 当刀片在拆卸过程中沿着边缘法兰行进时,当刀片将外门板与内门板分离时,肩部保持刀片的位置。
    • 6. 发明授权
    • Apparatus for peak detection in magnetic recording
    • 磁记录中峰值检测装置
    • US4480276A
    • 1984-10-30
    • US402507
    • 1982-07-28
    • Robert M. BateyJames D. Becker
    • Robert M. BateyJames D. Becker
    • H03K5/01G11B5/09G11B20/10G11B20/24H03K5/1532
    • H03K5/1532G11B20/10009G11B20/24
    • An apparatus is disclosed for detecting the peaks of a signal recorded on a magnetic storage medium. An absolute value circuit is used to generate an output that is approximately equivalent to the mathematical absolute value of the raw signal input from the storage medium. The absolute value signal is then coupled to both a differentiator circuit and a noise rejection comparator circuit. A second comparator which detects the zero voltage crossings of the differentiator circuit is enabled and disabled by the output from the noise rejection comparator so that transitions of opposite polarity are produced, corresponding to the peaks and positive going reference level crossings of the raw signal input, while noise on the raw signal input below a qualification level established by the noise rejection comparator circuit is rejected. The output of the second comparator is then coupled to a monostable multivibrator which produces digital pulses of a desired period which correspond to the peaks of the signal record on the magnetic storage medium.
    • 公开了一种用于检测记录在磁存储介质上的信号的峰值的装置。 绝对值电路用于产生大致相当于从存储介质输入的原始信号的数学绝对值的输出。 然后将绝对值信号耦合到微分电路和噪声抑制比较器电路两者。 检测微分电路的零电压交叉的第二比较器通过来自噪声抑制比较器的输出而被使能和禁止,使得对应于原始信号输入的峰值和正向参考电平交叉产生相反极性的转变, 而由噪声抑制比较器电路建立的低于资格级别的原始信号输入端的噪声被拒绝。 然后将第二比较器的输出耦合到单稳态多谐振荡器,其产生对应于磁存储介质上的信号记录的峰值的期望周期的数字脉冲。