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1. 发明授权

US4187452A Electromechanical torsional oscillator with resonant frequency and amplitude control 失效
标题翻译：具有谐振频率和幅度控制的机电扭转振荡器
公开(公告)号：US4187452A
公开(公告)日：1980-02-05
申请号：US608120
申请日：1975-08-27
申请人： LaVerne F. Knappe , Roger H. Peterson , Gary J. Stroebel
发明人： LaVerne F. Knappe , Roger H. Peterson , Gary J. Stroebel
IPC分类号： H02K33/04 , G02B26/10 , G05D13/62 , H02K33/08 , H04N3/02 , H04R11/14 , H02K41/00
CPC分类号： G02B26/10 , H04R11/14
摘要： A limited rotation electromechanical torsional oscillator for driving a mirror in an optical deflection system. A drive armature is mounted on a torsion bar at the opposite end from the torsion bar support. The ends of the armature lie in an air gap between two pole pieces. The magnet flux in the gap is caused to vary by means of a drive winding which results in armature rotation. Resonant frequency is varied by adjustment of the length of the torsion bar and the flux density. Q is varied by means of resistance in series with the drive winding.
摘要翻译：用于驱动光学偏转系统中的反射镜的有限旋转的机电扭转振荡器。驱动电枢安装在与扭杆支架相对的一端处的扭杆上。电枢的端部位于两个极片之间的气隙中。通过驱动绕组使间隙中的磁通量发生变化，从而导致电枢旋转。谐振频率通过调节扭杆的长度和磁通密度来改变。 Q通过与驱动绕组串联的电阻来改变。

2. 发明授权

US4184063A Thermal printer write head assembly 失效
标题翻译：热敏打印机写头组件
公开(公告)号：US4184063A
公开(公告)日：1980-01-15
申请号：US973213
申请日：1978-12-26
申请人： Gerald M. Heiling , LaVerne F. Knappe , John L. Regehr
发明人： Gerald M. Heiling , LaVerne F. Knappe , John L. Regehr
IPC分类号： B41J2/32 , B41J25/304 , B41J29/02 , H05B1/00
CPC分类号： B41J25/304
摘要： A non-impact thermal printer is formed using a pivoted stiffner-frame on which is mounted a printed circuit card-print head assembly. The card is slotted with the print heads mounted at the distal ends of the cantilevered portions to enable close compliance between print head read/write units and the print media through the torsional resilience of the circuit card cantilevered portions. Compact, simple structure is provided by having the printer control circuitry mounted on the same printed circuit card.
摘要翻译：使用枢转的刚性框架形成非冲击式热敏打印机，在其上安装有印刷电路卡打印头组件。该卡被开槽，打印头安装在悬臂部分的远端处，以通过电路卡悬臂部分的扭转弹性使得打印头读/写单元和打印介质之间的紧密一致。通过将打印机控制电路安装在相同的印刷电路卡上来提供紧凑，简单的结构。

3. 发明授权

US4970610A Magnetic disk drive start procedure for starting reaction torque amplification 失效
标题翻译：启动反应转矩放大的磁盘驱动启动程序
公开(公告)号：US4970610A
公开(公告)日：1990-11-13
申请号：US253013
申请日：1988-10-04
申请人： LaVerne F. Knappe
发明人： LaVerne F. Knappe
IPC分类号： G11B5/55 , G11B19/20
CPC分类号： G11B19/20 , G11B5/5521
摘要： A magnetic disk drive spindle motor start routine is provided that supersedes the spindle motor primary motor control when a stuck condition, wherein one of more transducer heads are adhered to the disk surface, is found to exist at start. The motor is provided current pulses at the resonant frequency of the worst case stuck system with the sequence limited to a number of pulses that will not cause the torque amplification to exceed a value that would damage the head/suspension assemblies. In another embodiment, the stuck system is provided with a motion sensor to sense positive and negative motion during oscillation of the stuck system and provide current to the motor when motion is positive to effect torque amplification.
摘要翻译：提供了磁盘驱动主轴电动机启动例程，当在开始时发现存在其中一个更多的传感器头粘附到磁盘表面的卡住状态时主轴电动机主电动机控制。电动机以最坏情况的卡住系统的谐振频率提供电流脉冲，其序列限于不会导致转矩放大超过将损坏头/悬架组件的值的多个脉冲。在另一个实施例中，卡住的系统设置有运动传感器，用于在卡住的系统的振荡期间感测正和负运动，并且当运动为正的时候向电动机提供电流以实现转矩放大。

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