公开(公告)号：US07999244B2

公开(公告)日：2011-08-16

申请号：US12004090

申请日：2007-12-18

Applicant: Wyatt Davis ,  Gregory T. Gibson ,  Hakan Urey ,  Thomas W. Montague ,  Bin Xue ,  John Lewis

Inventor： Wyatt Davis ,  Gregory T. Gibson ,  Hakan Urey ,  Thomas W. Montague ,  Bin Xue ,  John Lewis

IPC: G01N21/86

CPC classification number: G02B23/2423 ,  G02B26/0841 ,  G02B26/085

Abstract: Embodiments relate to a MEMS device including a scanner rotatable about at least one rotation axis, with the scanner having a characteristic resonant frequency. According to one embodiment, the MEMS device includes drive electronics operable to generate a drive signal that causes the scanner to oscillate at an operational frequency about the at least one rotation axis. The drive signal has a drive frequency selected to be about equal to the characteristic resonant frequency or a sub-harmonic frequency of the characteristic resonant frequency. According to another embodiment, the drive electronics are operable to generate a drive signal having a plurality of drive-signal pulses that moves the scanner at an operational frequency and sensing electronics are operable to sense a position of the scanner only when the drive-signal pulses of the drive signal are not being transmitted by the drive electronics. The MEMS device embodiments may be incorporated in scanned beam imagers, endoscopes, and displays.

Abstract translation: 实施例涉及包括可围绕至少一个旋转轴线旋转的扫描仪的MEMS装置，扫描器具有特征谐振频率。 根据一个实施例，MEMS装置包括可操作以产生驱动信号的驱动电子设备，该驱动信号使扫描仪以围绕至少一个旋转轴线的工作频率振荡。 驱动信号的驱动频率选择为大约等于特性谐振频率或特征谐振频率的次谐波频率。 根据另一个实施例，驱动电子器件可操作以产生具有多个驱动信号脉冲的驱动信号，驱动信号脉冲以操作频率移动扫描器，并且感测电子装置可操作以仅当驱动信号脉冲 的驱动信号不被驱动电子器件传输。 MEMS器件实施例可并入扫描光束成像器，内窥镜和显示器中。

公开(公告)号：US20080265148A1

公开(公告)日：2008-10-30

申请号：US11796531

申请日：2007-04-26

Applicant: Gregory T. Gibson ,  Richard A. James ,  Wyatt O. Davis

Inventor： Gregory T. Gibson ,  Richard A. James ,  Wyatt O. Davis

IPC: H01J3/14

CPC classification number: G06K7/10584 ,  G02B26/085 ,  G06K7/10603

Abstract: Briefly, in accordance with one or more embodiments, an operational state of a MEMS device of a scanner system may be determined. In the event it is determined that the MEMS device is possibly operating in an unsafe mode, the laser may be turned off and/or the MEMS device may be shut down. An operational state of the MEMS device may be determined for example by obtaining a MEMS drive voltage sense signal and/or a MEMS drive current sense signal, and a potentially unsafe mode of operation may be identified if one or more of such signals are not at proper values with respect to predetermined threshold values.

Abstract translation: 简而言之，根据一个或多个实施例，可以确定扫描器系统的MEMS装置的操作状态。 在确定MEMS器件可能以不安全模式操作的情况下，可以关闭激光器和/或关闭MEMS器件。 可以例如通过获得MEMS驱动电压检测信号和/或MEMS驱动电流检测信号来确定MEMS器件的操作状态，并且如果这些信号中的一个或多个不在 相对于预定阈值的适当值。

公开(公告)号：US07679804B2

公开(公告)日：2010-03-16

申请号：US11796230

申请日：2007-04-26

Applicant: Dean R. Brown ,  Wyatt O. Davis ,  Gregory T. Gibson ,  Richard A. James

Inventor： Dean R. Brown ,  Wyatt O. Davis ,  Gregory T. Gibson ,  Richard A. James

IPC: G02B26/08

CPC classification number: G02B26/085 ,  G02B7/1821

Abstract: Briefly, in accordance with one or more embodiments, a MEMS device for a scanner system may be driven in a non-resonant mode of operation. The drive signal provided to the MEMS device may be tailored to prevent the MEMS device from exhibiting resonance characteristics and to cause the MEMS device to operate non-resonantly. In one or more embodiments, a filter may be used to tailor the frequency components of the drive signal, for example to sufficiently attenuate frequency components at or near the resonant frequency of the drive signal. A direct current signal may be provided to the MEMS device to provide an offset to scanned light beam for example to provide beam steering, and the sweep range and/or sweep frequency may be adjusted for example to steer the scanning field of view off axis from the user pointing axis.

Abstract translation: 简而言之，根据一个或多个实施例，可以以非谐振工作模式驱动用于扫描器系统的MEMS装置。 可以调整提供给MEMS器件的驱动信号，以防止MEMS器件表现出谐振特性，并使MEMS器件非谐振地工作。 在一个或多个实施例中，可以使用滤波器来定制驱动信号的频率分量，例如以充分衰减在驱动信号的谐振频率处或附近的频率分量。 可以向MEMS器件提供直流信号以提供扫描光束的偏移，例如以提供光束转向，并且可以调整扫描范围和/或扫描频率以例如将扫描视场偏离轴线 用户指向轴。

公开(公告)号：US20100053591A1

公开(公告)日：2010-03-04

申请号：US12615138

申请日：2009-11-09

Applicant: Gregory T. Gibson ,  Joshua M. Hudman ,  Margaret K. Brown ,  Christian Dean DeJong

Inventor： Gregory T. Gibson ,  Joshua M. Hudman ,  Margaret K. Brown ,  Christian Dean DeJong

IPC: G01C3/08

CPC classification number: H04N9/3129

Abstract: A encoded image projection system (100) is configured to determine the proximity of the system to a projection surface (106). The encoded image projection system (100) includes a light encoder (105) that scans a non-visible light beam (115) on the projection surface (106) selectively when scanning visible light to create an image. A detector (118) is then configured to receive reflections of the non-visible light beam (115) from the projection surface (106). A control circuit (120) is configured to determine the distance (124) between the projection surface (106) and the system from, for example, intensity data or location data received from the detector (118). Where the distances (124) are below a threshold, the control circuit (120) can either reduce the output power of the system or turn the system off.

Abstract translation: 编码图像投影系统（100）被配置为确定系统与投影表面（106）的接近度。 编码图像投影系统（100）包括当扫描可见光以产生图像时选择性地扫描投影表面（106）上的不可见光束（115）的光编码器（105）。 然后，检测器（118）被配置为从投影表面（106）接收不可见光束（115）的反射。 控制电路（120）被配置为从例如从检测器（118）接收的强度数据或位置数据确定投影表面（106）和系统之间的距离（124）。 当距离（124）低于阈值时，控制电路（120）可以减小系统的输出功率或者关闭系统。

公开(公告)号：US20090153932A1

公开(公告)日：2009-06-18

申请号：US12004090

申请日：2007-12-18

Applicant: Wyatt Davis ,  Gregory T. Gibson ,  Hakan Urey ,  Thomas W. Montague ,  Bin Xue ,  John Lewis

Inventor： Wyatt Davis ,  Gregory T. Gibson ,  Hakan Urey ,  Thomas W. Montague ,  Bin Xue ,  John Lewis

IPC: G02B26/10

CPC classification number: G02B23/2423 ,  G02B26/0841 ,  G02B26/085

Abstract: Embodiments relate to a MEMS device including a scanner rotatable about at least one rotation axis, with the scanner having a characteristic resonant frequency. According to one embodiment, the MEMS device includes drive electronics operable to generate a drive signal that causes the scanner to oscillate at an operational frequency about the at least one rotation axis. The drive signal has a drive frequency selected to be about equal to the characteristic resonant frequency or a sub-harmonic frequency of the characteristic resonant frequency. According to another embodiment, the drive electronics are operable to generate a drive signal having a plurality of drive-signal pulses that moves the scanner at an operational frequency and sensing electronics are operable to sense a position of the scanner only when the drive-signal pulses of the drive signal are not being transmitted by the drive electronics. The MEMS device embodiments may be incorporated in scanned beam imagers, endoscopes, and displays.

Abstract translation: 实施例涉及包括可围绕至少一个旋转轴线旋转的扫描仪的MEMS装置，扫描器具有特征谐振频率。 根据一个实施例，MEMS装置包括可操作以产生驱动信号的驱动电子设备，该驱动信号使扫描仪以围绕至少一个旋转轴线的工作频率振荡。 驱动信号的驱动频率选择为大约等于特性谐振频率或特征谐振频率的次谐波频率。 根据另一个实施例，驱动电子器件可操作以产生具有多个驱动信号脉冲的驱动信号，驱动信号脉冲以操作频率移动扫描器，并且感测电子装置可操作以仅当驱动信号脉冲 的驱动信号不被驱动电子器件传输。 MEMS器件实施例可并入扫描光束成像器，内窥镜和显示器中。

公开(公告)号：US20090147272A1

公开(公告)日：2009-06-11

申请号：US11950639

申请日：2007-12-05

Applicant: Gregory T. Gibson ,  Joshua M. Hudman ,  Randall B. Sprague

Inventor： Gregory T. Gibson ,  Joshua M. Hudman ,  Randall B. Sprague

IPC: G01B11/14 ,  G03B21/14

CPC classification number: G03B21/14 ,  H04N9/3155 ,  H04N9/3194

Abstract: Briefly, in accordance with one or more embodiments, a proximity detector is placed proximate to projector to detect an obstruction disposed proximate to the projector. The proximity detector is capable of estimating the distance from an object to the projector. If an object is detected within a minimum distance, the projector operation may be altered, for example to cause the projector to turn off, or to reduce the intensity of emitted light so that the power of the emitted light the minimum distance will be reduced to below a selected range. Furthermore, if an object cannot be detected within or near a maximum distance, the projector operation may likewise be altered, for example the proximity detector may cause the projector to turn off.

Abstract translation: 简而言之，根据一个或多个实施例，接近检测器放置在靠近投影仪的位置，以检测靠近投影仪设置的障碍物。 接近检测器能够估计从物体到投影仪的距离。 如果在最小距离内检测到物体，则可能改变投影机操作，例如使投影机关闭，或者降低发射光的强度，使得发射光的功率将最小距离减小到 低于所选范围。 此外，如果在最大距离内或附近不能检测到物体，则投影仪操作可以同样地改变，例如接近检测器可能导致投影仪关闭。

公开(公告)号：US07530498B2

公开(公告)日：2009-05-12

申请号：US11725989

申请日：2007-03-19

Applicant: Christopher A. Wiklof ,  Gregory T. Gibson ,  Edward M. Millet ,  Scott A. Ellerthorpe

Inventor： Christopher A. Wiklof ,  Gregory T. Gibson ,  Edward M. Millet ,  Scott A. Ellerthorpe

IPC: G06K7/10

CPC classification number: G06K7/0004

Abstract: A portable end device, such as a bar code scanner, may be equipped with auxiliary interfaces. The auxiliary interfaces may be easily added to the end device as a replaceable cover, such as a replaceable battery door. A signal path conducts signals to and from the replaceable cover. One auxiliary interface is a Bluetooth radio. Data integrity protocols may be selected to guarantee delivery and guarantee no duplicate deliveries. Host pairing algorithms may provide standard or strong pairing with a host computer. Ergonomic interface features allow a user to control and monitor the operation of the end device and the data link with minimal hardware cost and battery life impact. Host software programs provide data routing, automatic reestablishment of the data link, and other functions. The system is adaptable to a wide array of use environments through the selection of timer parameters in the end device.

Abstract translation: 诸如条形码扫描器的便携式终端设备可以配备辅助接口。 辅助接口可以容易地添加到终端设备中作为可替换的盖，例如可更换的电池门。 信号路径向可替换盖传导信号。 一个辅助接口是蓝牙无线电。 可以选择数据完整性协议来保证交付并保证没有重复的交付。 主机配对算法可以提供与主机的标准或强配对。 人机工程学界面功能允许用户以最小的硬件成本和电池寿命影响来控制和监视终端设备和数据链路的操作。 主机软件程序提供数据路由，自动重建数据链路等功能。 该系统通过选择终端设备中的定时器参数，适应各种使用环境。

公开(公告)号：US07439491B2

公开(公告)日：2008-10-21

申请号：US11428450

申请日：2006-07-03

Applicant: Jianhua Xu ,  Frank Blaine Metting, III ,  Gregory T. Gibson ,  Richard A. James

Inventor： Jianhua Xu ,  Frank Blaine Metting, III ,  Gregory T. Gibson ,  Richard A. James

IPC: H01J3/14 ,  G01B9/00

CPC classification number: G01J1/04 ,  G01J1/0411 ,  G01J1/0455 ,  G01J1/32

Abstract: Aspects of the subject matter described herein relate to reducing error in images obtained from an image-acquiring system. An image-acquiring system may be modeled as light received from a primary path, light received from a secondary path, and light received from all other paths. Light received from the secondary and other paths may cause error in images captured by the image-acquiring system. By compensating for this light, the error may be reduced. Other aspects are described in the specification.

Abstract translation: 本文描述的主题的方面涉及减少从图像采集系统获得的图像中的误差。 图像获取系统可以被建模为从主路径接收的光，从次路径接收的光以及从所有其他路径接收的光。 从次要路径和其他路径接收的光线可能会导致由图像采集系统捕获的图像错误。 通过补偿该光，可能会降低误差。 其他方面在说明书中描述。

公开(公告)号：US08519983B2

公开(公告)日：2013-08-27

申请号：US11967156

申请日：2007-12-29

Applicant: Randall B. Sprague ,  Christian Dean DeJong ,  Gregory T. Gibson

Inventor： Randall B. Sprague ,  Christian Dean DeJong ,  Gregory T. Gibson

IPC: G06F3/041

CPC classification number: G06F3/03542 ,  G06F3/0346 ,  G06F3/03545 ,  G06F3/0423 ,  H04N9/3129 ,  H04N9/3147 ,  H04N9/3173

Abstract: Briefly, in accordance with one or more embodiments, an input device may be utilized in conjunction with a scanned beam display or the like, or may be based on the scanning platform as used in a scanned beam display such as a MEMS based scanner. An input event such as illumination of a photodetector or reflection of a scanned beam off of a retroreflector may be correlated with a timing event of the scanning platform such as a refresh signal, or a horizontal and vertical sync signals. The correlation of the timing event may be representative of an X-Y location, and in some embodiments of a Z location, that may be utilized to provide input data back to a host device.

Abstract translation: 简而言之，根据一个或多个实施例，输入设备可以与扫描光束显示器等结合使用，或者可以基于扫描光束显示器（例如基于MEMS的扫描仪）中使用的扫描平台。 诸如光电检测器的照明或反向反射器的扫描光束的反射等输入事件可以与诸如刷新信号或水平和垂直同步信号的扫描平台的定时事件相关联。 定时事件的相关性可以表示X-Y位置，并且在Z位置的一些实施例中，其可用于将输入数据提供回主机设备。

公开(公告)号：US07717341B2

公开(公告)日：2010-05-18

申请号：US11796276

申请日：2007-04-26

Applicant: Gregory T. Gibson

Inventor： Gregory T. Gibson

IPC: G02B26/00 ,  G06K7/10 ,  G06K9/22 ,  G06K19/06

CPC classification number: G06K7/10633 ,  G06K7/1478

Abstract: Briefly, in accordance with one or more embodiments, a scanner system may scan a target based on a first derivative of a reflectance profile received from a scanned target. Positive and negative threshold values may comprise a static portion and a dynamic portion. The static portion may comprise a constant value, and the dynamic portion may be based at lest in part on a charge profile, or a discharge profile, of a capacitor. The threshold for generating the digital signal may be set lower when the amplitude of the first derivative is lower, and higher when the amplitude of the first derivative is higher.

Abstract translation: 简而言之，根据一个或多个实施例，扫描仪系统可以基于从扫描的目标接收的反射率分布的一阶导数来扫描目标。 正和负阈值可以包括静态部分和动态部分。 静态部分可以包括恒定值，并且动态部分可以部分地基于电容器的充电曲线或放电曲线。 当一阶导数的幅度较小时，可以将产生数字信号的阈值设定得较低，而当一阶导数的幅度较高时，产生数字信号的阈值可能较低。