公开(公告)号：US20060119908A1

公开(公告)日：2006-06-08

申请号：US11002377

申请日：2004-12-02

申请人： Steven Harris ,  Martin Klement

发明人： Steven Harris ,  Martin Klement

IPC分类号： H04N1/46

CPC分类号： G02B26/085

摘要： A system for driving a torsion based on frequency, amplitude and offset control signals includes a pulse width modulator subsystem configured to generate output pulses having controlled pulse durations alternately to each of two channels, the output pulses encoding the frequency, amplitude and offset control signals. A driver circuit is configured for driving the torsion oscillator with a voltage of one polarity during a pulse output to the one of the channels, and a voltage of opposite polarity during a pulse output to the other of the channels.

摘要翻译： 用于基于频率，幅度和偏移控制信号来驱动扭转的系统包括：脉冲宽度调制器子系统，被配置为产生对两个通道中的每一个交替地具有受控脉冲持续时间的输出脉冲，编码频率，幅度和偏移控制信号的输出脉冲。 驱动电路被配置为在脉冲输出到一个通道的同时驱动具有一个极性的电压的扭转振荡器，并且在向另一个通道输出脉冲期间驱动具有相反极性的电压。

公开(公告)号：US20050280699A1

公开(公告)日：2005-12-22

申请号：US10869408

申请日：2004-06-16

申请人： Roger Cannon ,  Martin Klement ,  Philip Riggs ,  Eric Westerfield

发明人： Roger Cannon ,  Martin Klement ,  Philip Riggs ,  Eric Westerfield

IPC分类号： B41J2/435 ,  B41J2/47 ,  G02B26/10

CPC分类号： B41J2/471 ,  G02B26/105

摘要： A method for improving the operation of an electrophotographic printer. The method includes providing an electrophotographic printer containing a laser scanning unit. A torsion oscillator for the laser scanning unit is enclosed in closed compartment. The closed compartment includes side walls having first and second side wall edges, a bottom wall attached on the first side wall edges, and a cover attached adjacent to the second side wall edges. The closed compartment is sufficient to reduce stray air currents from adjacent the torsion oscillator thereby improving the operation of the electrophotographic printer.

摘要翻译： 一种改善电子照相打印机操作的方法。 该方法包括提供包含激光扫描单元的电子照相打印机。 用于激光扫描单元的扭转振荡器被封闭在封闭的隔室中。 封闭的隔室包括具有第一和第二侧壁边缘的侧壁，附接在第一侧壁边缘上的底壁和邻近第二侧壁边缘附接的盖。 封闭的隔间足以减少邻近扭转振荡器的杂散气流，从而改善电子照相打印机的操作。

公开(公告)号：US20050030605A1

公开(公告)日：2005-02-10

申请号：US10801319

申请日：2004-03-16

申请人： Roger Cannon ,  Timothy Green ,  Martin Klement ,  Daniel Pawley ,  Wilson Routt

发明人： Roger Cannon ,  Timothy Green ,  Martin Klement ,  Daniel Pawley ,  Wilson Routt

IPC分类号： G02B26/08 ,  G02B26/10 ,  G05B1/00

CPC分类号： G02B26/0833 ,  G02B26/085 ,  G02B26/105

摘要： An image scanning apparatus and a torsion oscillator are capable of operating across a dynamic range of possible operating frequencies. The image scanning apparatus uses a light source to produce a light beam, and the oscillator scans the light beam through a scanning pattern. The oscillator includes a plate member having a non-rectangular shape. At least one magnet is disposed on the plate. A surface of the plate member includes a reflective surface for reflecting a light beam. A frame is disposed in a spaced apart relation to a lower surface of the plate member. The frame includes at least one coil configured to induce an electromagnetic force on the at least one magnet to thereby oscillate the reflective surface to a rotational angle of oscillation at an oscillation frequency. The system also includes an imaging surface disposed in the path of the scanning pattern so that the light beam scans across the imaging surface, and a mechanical drive to move the imaging surface. A control system controls electric current provided to the at least one coil to achieve the oscillation.

公开(公告)号：US20060065808A1

公开(公告)日：2006-03-30

申请号：US10950071

申请日：2004-09-24

申请人： Christopher Chee ,  Martin Klement

发明人： Christopher Chee ,  Martin Klement

IPC分类号： G02B26/08

CPC分类号： B41J2/1623 ,  B41J2/16 ,  B41J2002/14362

摘要： A module for mounting a micro-electromechanical system (MEMS) device includes a base having a first support and a second support. The second support has a support guide feature. The module also includes a bracket attached to the MEMS device. The bracket has a central axis, a first end, and a second end. The second end has a bracket guide feature. The first end is affixed to the first support of the base to form a cantilever arrangement. The support guide feature engages the bracket guide feature to form a sliding joint having a sliding axis substantially parallel to the central axis.

摘要翻译： 用于安装微机电系统（MEMS）装置的模块包括具有第一支撑件和第二支撑件的基座。 第二个支持具有支持指导功能。 该模块还包括附接到MEMS装置的支架。 支架具有中心轴线，第一端部和第二端部。 第二端具有支架引导功能。 第一端固定到基座的第一支撑件上以形成悬臂布置。 支撑引导件与支架引导件结合，以形成具有基本上平行于中心轴线的滑动轴线的滑动接头。

公开(公告)号：US20080074720A1

公开(公告)日：2008-03-27

申请号：US11950981

申请日：2007-12-05

申请人： Christopher Chee ,  Martin Klement

发明人： Christopher Chee ,  Martin Klement

IPC分类号： G02B26/10 ,  B81B7/02

CPC分类号： B41J2/1623 ,  B41J2/16 ,  B41J2002/14362

摘要： A module for mounting a micro-electromechanical system (MEMS) device includes a base having a first support and a second support. The second support has a support guide feature. The module also includes a bracket attached to the MEMS device. The bracket has a central axis, a first end, and a second end. The second end has a bracket guide feature. The first end is affixed to the first support of the base to form a cantilever arrangement. The support guide feature engages the bracket guide feature to form a sliding joint having a sliding axis substantially parallel to the central axis.

摘要翻译： 用于安装微机电系统（MEMS）装置的模块包括具有第一支撑件和第二支撑件的基座。 第二个支持具有支持指导功能。 该模块还包括附接到MEMS装置的支架。 支架具有中心轴线，第一端部和第二端部。 第二端具有支架引导功能。 第一端固定到基座的第一支撑件上以形成悬臂布置。 支撑引导件与支架引导件结合，以形成具有基本上平行于中心轴线的滑动轴线的滑动接头。

公开(公告)号：US20060279364A1

公开(公告)日：2006-12-14

申请号：US11152329

申请日：2005-06-14

申请人： Martin Klement

发明人： Martin Klement

IPC分类号： H03L7/00

CPC分类号： G02B26/105 ,  H02P25/032

摘要： A method for determining an operating point of an oscillation controller. The method builds a model of an oscillation device based upon its design parameters. Then the resonant frequency of each specific oscillator is measured in its application environment, and the model, or a table derived from the model is used to define the operating point. The operating point may be expressed in terms of clock counts by factoring in the clock rate of the oscillation controller.

摘要翻译： 一种用于确定振荡控制器的工作点的方法。 该方法基于其设计参数构建振荡装置的模型。 然后在其应用环境中测量每个特定振荡器的谐振频率，并使用模型或从模型导出的表来定义工作点。 可以通过考虑振荡控制器的时钟速率来表示工作点的时钟计数。

公开(公告)号：US20060119700A1

公开(公告)日：2006-06-08

申请号：US11002342

申请日：2004-12-02

申请人： Steven Harris ,  Martin Klement

发明人： Steven Harris ,  Martin Klement

IPC分类号： B41J2/435

CPC分类号： H04N1/053 ,  G02B7/1821 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/04794

摘要： A system for driving a torsion oscillator based on frequency, amplitude and offset control signals includes a pulse width modulator subsystem configured to generate a stream of repetitive pulse signals which encodes the frequency, amplitude and offset control signals, a low pass filter for filtering the stream of repetitive pulse signals to provide a filtered output, and a driver circuit for driving the torsion oscillator based on the filtered output.

摘要翻译： 基于频率，幅度和偏移控制信号来驱动扭转振荡器的系统包括：脉冲宽度调制器子系统，被配置为产生编码频率，幅度和偏移控制信号的重复脉冲信号流;低通滤波器，用于过滤流 的重复脉冲信号以提供滤波输出，以及用于基于滤波输出驱动扭转振荡器的驱动器电路。

公开(公告)号：US20060064019A1

公开(公告)日：2006-03-23

申请号：US10947029

申请日：2004-09-22

申请人： Craig Bush ,  Roger Cannon ,  Martin Klement ,  Daniel Pawley

发明人： Craig Bush ,  Roger Cannon ,  Martin Klement ,  Daniel Pawley

IPC分类号： A61B6/00

CPC分类号： G06K15/1204 ,  G06K15/1219 ,  H04N1/053 ,  H04N1/1135 ,  H04N2201/0468 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04789

摘要： In bi-directional imaging, such as bi-directional printing, a driving mechanism scans a light beam through a scan path across an imaging window. A controller enables transmission of video data to a modulator when the light beam is positioned for imaging on the imaging window. Video data is transmitted to the modulator when the light beam is traveling in a forward direction or a reverse direction across the imaging window, whereby a modulated light beam is capable of producing an image when traveling in the forward or reverse directions. The controller adjusts scan durations or image rasterization rates to ensure that each scan is properly aligned with the prior and subsequent scan.

公开(公告)号：US20050093964A1

公开(公告)日：2005-05-05

申请号：US11007723

申请日：2004-12-07

申请人： Martin Klement ,  Daniel Pawley

发明人： Martin Klement ,  Daniel Pawley

IPC分类号： G02B26/10 ,  B41J2/435

CPC分类号： G02B26/105 ,  G02B7/008 ,  G02B26/085

摘要： A method reduces the Q factor of the resonant frequency response of a torsional oscillator system in a laser printer, where the Q factor is expressed as a function of the resonant frequency and 3 dB bandwidth of the frequency response. The frequency response of the torsional oscillator system is a function of at least a rotational inertia, a spring constant and a damping constant. The method includes the steps of decreasing the rotational inertia of the torsional oscillator system by a first factor, and decreasing the spring constant by a second factor that is substantially equal to the first factor. The method generally increases component yields, thereby reducing component costs. Also, laser printers using torsion oscillators having reduced Q factors may be used over a wider speed range. Conversely, a single laser printer model may be used at a single speed, rather than at speeds that vary due to variations in resonant frequency. The method also provides for greater freedom of movement of the operating point of the printer during printer development.

摘要翻译： 一种方法降低了激光打印机中扭转振荡器系统的谐振频率响应的Q因子，其中Q因子表示为谐振频率和频率响应的3 dB带宽的函数。 扭转振荡器系统的频率响应是至少旋转惯量，弹簧常数和阻尼常数的函数。 该方法包括以下步骤：通过第一因素降低扭转振荡器系统的旋转惯性，并将弹簧常数减小基本上等于第一因子的第二因子。 该方法通常提高部件产量，从而降低部件成本。 此外，使用具有降低的Q因子的扭转振荡器的激光打印机可以在更宽的速度范围内使用。 相反，单个激光打印机模型可以以单个速度使用，而不是由于谐振频率的变化而变化的速度。 该方法还提供在打印机开发期间打印机的操作点的更大的自由度。

公开(公告)号：US20050110586A1

公开(公告)日：2005-05-26

申请号：US11025021

申请日：2004-12-29

申请人： Martin Klement

发明人： Martin Klement

IPC分类号： G02B7/00 ,  G02B26/08 ,  G02B26/10 ,  H03B5/30

CPC分类号： G02B26/105 ,  G02B7/008 ,  G02B26/085

摘要： A torsion oscillator (FIG. 1) is stabilized in operation by determining the current resonant frequency (62); in a first procedure, observing the oscillator for change in resonant frequency (64), and then restoring the amplitude and median offset (66) without changing the drive frequency. In an alternative procedure, after determining the resonant frequency (62); setting the drive frequency close to but offset from the current resonant frequency (74), observing the oscillator for change in resonant frequency (76), and the restoring the close offset to the changed resonant frequency (78). By operating slightly off peak, the direction of resonant change is immediately known. The first procedure has less difficulties in implementation, but requires more power.

摘要翻译： 扭转振荡器（图1）通过确定当前谐振频率（62）而在操作中稳定; 在第一个过程中，观察振荡器以改变谐振频率（64），然后在不改变驱动频率的情况下恢复振幅和中值偏移（66）。 在另一种方法中，在确定谐振频率（62）之后; 将驱动频率设置为接近但偏离当前谐振频率（74），观察振荡器以改变谐振频率（76），并将接近偏移恢复到改变的谐振频率（78）。 通过稍微偏离峰值，立即知道谐振变化的方向。 第一个程序执行困难较少，但需要更多的权力。