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    • 2. 发明授权
    • Active magnetic latch for disk drive and method
    • 用于磁盘驱动器的主动磁锁和方法
    • US5303101A
    • 1994-04-12
    • US851372
    • 1992-03-10
    • Michael R. HatchRonald R. MoonRobert P. Cloutier
    • Michael R. HatchRonald R. MoonRobert P. Cloutier
    • G11B21/12G11B5/54G11B21/02G11B21/22
    • G11B5/54
    • When a rotary-actuator voice coil type disk drive is powered down the actuator arm is moved to a parking position against an I.D. stop by a disk spindle motor back EMF, resulting from the spinning down of the spindle motor. Current is applied by the back EMF through a delay circuit to a latch arm voice coil on one end of a latch arm and forming part of a magnetic circuit including a drive permanent magnet on a ferrous base plate and a ferrous upper plate. Resultant movement of the latch arm overcomes a spring bias of a torsion spring extending between the base plate and pivoted latch arm normally keeping the latch arm in an unlatched position. A latch permanent magnet extends from the other end of the latch arm and is brought into spaced proximity, but not contact, with a ferrous member extending from the actuator arm so that the magnetic force therebetween holds the actuator arm against the I.D. stop in latched position to withstand high shock loadings. Powering the rotary actuator voice coil motor up overcomes the magnetic force and allows the biased torsion spring to move the latch arm to the unlatched position without resultant loss of data storage area.
    • 当旋转致动器音圈型磁盘驱动器断电时,致动器臂被移动到与I.D.相对的停车位置。 由主轴电机反转的磁盘主轴电机停止,由主轴电机的下降引起。 反电动势通过延迟电路将电流施加到锁臂的一端上的锁臂音圈,并在铁基板和铁上板上形成包括驱动永久磁铁的磁路的一部分。 闩锁臂的产生的运动克服了在基板和枢转的闩锁臂之间延伸的扭转弹簧的弹簧偏压,通常将闩锁臂保持在解锁位置。 闩锁永磁体从闩锁臂的另一端延伸并且与从致动器臂延伸的铁构件隔开接近但不接触,使得其间的磁力将致动器臂保持抵靠于I.D. 停止在锁定位置以承受高冲击载荷。 向旋转执行器音圈电机供电克服了磁力,并允许偏置的扭转弹簧将闩锁臂移动到解锁位置,而不会导致数据存储区域的损失。
    • 5. 发明授权
    • Magnetic recording on film of beyond camera exposure value range
indication
    • 超过相机曝光值范围指示的胶片上的磁记录
    • US5006878A
    • 1991-04-09
    • US405815
    • 1989-09-11
    • Robert P. Cloutier
    • Robert P. Cloutier
    • G03B17/18G03B17/24
    • G03B17/245G03B2206/004G03B2217/244G03B2217/246
    • The camera of the invention includes a magnetic recording head adjacent the film and a processor which senses the lens focal length, the aperture size, the shutter speed and the film ISO number or film speed, and makes the following determinations: First, it determines from the scene brightness and film speed whether the ideal combination of shutter speed and aperture size, in terms of a required exposure value, falls within the range of maximum and minimum shutter exposure times and aperture sizes of which the camera is capable of providing, expressed in terms of a minimum camera exposure value and a maximum camera exposure value. If the ideal exposure value for that scene falls outside the range of camera exposure values, then the processor causes a magnetic recording head to magnetically record in or adjacent the current film frame a coded indication symbolic of the fact that the required exposure value was beyond the camera exposure value range.
    • 本发明的照相机包括与胶片相邻的磁记录头和感测透镜焦距,孔径尺寸,快门速度和胶片ISO数量或胶片速度的处理器,并进行以下确定:首先,从 场景亮度和胶片速度无论是所需曝光值的快门速度和光圈尺寸的理想组合是否在相机能够提供的最大和最小快门曝光时间和光圈尺寸的范围内,以 最小相机曝光值和最大照相机曝光值的术语。 如果该场景的理想曝光值落在相机曝光值的范围之外,则处理器使磁记录头在当前胶片帧中或与当前胶片帧相邻的一个编码指示上进行磁记录,其符号表示所需曝光值超出 相机曝光值范围。
    • 8. 发明授权
    • Film leader
    • 电影导演
    • US6045982A
    • 2000-04-04
    • US210501
    • 1998-12-11
    • Robert P. Cloutier
    • Robert P. Cloutier
    • G03C3/02G03C3/00
    • G03C3/02
    • A film leader comprising a main leader portion having a pair of parallel straight edges between which the main leader portion has a constant width, an extreme end portion extending from the main leader portion and having a pair of longitudinal edges between which the extreme end portion only has a width that is smaller than the width of the main leader portion; and a weakened fold-line, is characterized in that the weakened fold-line completely divides the main leader portion and the extreme end portion and is uniformly inclined from one of the parallel straight edges of the main leader portion to the other parallel straight edge of the main leader portion to thus form a forward-most inclined straight edge of the main leader portion when the extreme end portion is folded totally onto the main leader portion along the fold-line.
    • 一种胶片引导件,包括主引导部分,其具有一对平行的直边缘,主引导部分之间具有恒定的宽度,从主引导部分延伸的前端部分,并且具有一对纵向边缘,仅在其前端部分之间 具有比主导引部分的宽度小的宽度; 和折弯线,其特征在于,弱化的折线将主引导部分和前端部分完全分开,并且从主引导部分的平行直边缘之一均匀地倾斜到另一个平行的直线边缘 主引导部分,从而当前端部分沿着折叠线完全折叠到主引导部分上时,形成主引导部分的最前倾斜的直边。