公开(公告)号：US06184914B2

公开(公告)日：2001-02-06

申请号：US09370356

申请日：1999-08-09

申请人： Tim M. Hoberock ,  William E. Britton ,  Gary L. Holland

发明人： Tim M. Hoberock ,  William E. Britton ,  Gary L. Holland

IPC分类号： B41J247

CPC分类号： H04N1/29 ,  B41J2/435 ,  G03G13/22 ,  G03G15/0126

摘要： An electrophotographic imaging system produces multiple gray level images and includes a photoconductor and a charger for repetitively charging the photoconductor to a first charge potential. A laser system selectively discharges the photoconductor in accord with applied image data. A first toner is utilized and exhibits a first charge state that is attracted by a first discharge voltage of the photoconductor. A second toner is also used that exhibits a second charge state of the same sense as the first toner, but is attracted by a second discharge voltage of larger magnitude than the first discharge voltage. A processor modulates the laser system to cause the photoconductor to be discharged to the first discharge voltage when only the first toner is to be attracted to the photoconductor. The processor further modulates the laser scanner to cause the photoconductor surface to be discharged to the second discharge voltage. This action enables areas discharged to the first discharge voltage to be toned by the first toner, and areas discharged to the second discharge voltage to be toned by both the first and second toners so as to create a more dense toner surface.

摘要翻译： 电子照相成像系统产生多个灰度图像，并且包括光电导体和用于将光电导体重复充电到第一充电电位的充电器。 激光系统根据应用的图像数据选择性地放电感光体。 使用第一调色剂并且显示被感光体的第一放电电压吸引的第一电荷状态。 还使用表现出与第一调色剂相同感觉的第二电荷状态但被第一放电电压大的第二放电电压吸引的第二调色剂。 当仅将第一调色剂吸引到感光体时，处理器调制激光系统以使光电导体放电到第一放电电压。 处理器进一步调制激光扫描器以使感光体表面放电到第二放电电压。 该动作使得通过第一调色剂调节放电到第一放电电压的区域，并且排出到第二放电电压的区域由第一和第二调色剂调色，以便产生更致密的调色剂表面。

公开(公告)号：US06826162B2

公开(公告)日：2004-11-30

申请号：US09967692

申请日：2001-09-28

申请人： Robert E. Haines ,  Paul L Jeran ,  Travis J. Parry ,  Gary L. Holland

发明人： Robert E. Haines ,  Paul L Jeran ,  Travis J. Parry ,  Gary L. Holland

IPC分类号： H04Q700

CPC分类号： H04W64/00

摘要： Methods and apparatus for locating a network device relative to other network devices are useful for the management of wireless computing networks. Signal strength in a wireless network is indicative of a distance between a transmitting device and a receiving device. Through use of triangulation of the received signals at multiple receiving devices, the relative location of the transmitting device can be determined. Methods of refining the estimation of the expected location of the transmitting device are further provided. Defining an absolute location for at least one of the devices will permit determining the absolute location of the remaining devices based on these relative locations. Locating network devices relative to each other facilitates identifying a closest available resource within the network.

摘要翻译： 用于定位网络设备相对于其他网络设备的方法和设备对于无线计算网络的管理是有用的。 无线网络中的信号强度指示发射设备和接收设备之间的距离。 通过在多个接收装置处对接收到的信号进行三角测量，可以确定发送装置的相对位置。 还提供了对发送装置的预期位置的估计进行细化的方法。 定义至少一个设备的绝对位置将允许基于这些相对位置确定剩余设备的绝对位置。 相对于彼此定位网络设备便于识别网络内最接近的可用资源。

公开(公告)号：US4454458A

公开(公告)日：1984-06-12

申请号：US326631

申请日：1981-12-02

申请人： Gary L. Holland

发明人： Gary L. Holland

IPC分类号： H02P6/06 ,  H02P6/08 ,  H02P6/20 ,  H02K29/00

CPC分类号： H02P6/20 ,  H02P6/08

摘要： Method and apparatus for starting and driving a brushless DC motor and compensating variations in motor speed by producing sequential drive currents through the motor coils, selectively interrupting such currents to allow the rotor to catch up with the rotating stator field during startup, and stabilizing motor speed by controlling motor coil current in inverse proportion to the rate of change of phase lag of the rotor behind the rotating stator field.

摘要翻译： 用于启动和驱动无刷直流电动机的方法和装置，通过产生通过电动机线圈的顺序驱动电流来补偿电动机速度的变化，选择性地中断这样的电流，以允许转子在启动期间赶上旋转的定子磁场，并且稳定电动机速度 通过控制电动机线圈电流与旋转定子磁场后面的转子的相位滞后变化率成反比。