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1. 发明申请

US20100053591A1 Scanned Proximity Detection Method and Apparatus for a Scanned Image Projection System 有权
标题翻译：用于扫描图像投影系统的扫描接近检测方法和装置
公开(公告)号：US20100053591A1
公开(公告)日：2010-03-04
申请号：US12615138
申请日：2009-11-09
申请人： Gregory T. Gibson , Joshua M. Hudman , Margaret K. Brown , Christian Dean DeJong
发明人： Gregory T. Gibson , Joshua M. Hudman , Margaret K. Brown , Christian Dean DeJong
IPC分类号： G01C3/08
CPC分类号： H04N9/3129
摘要： 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.
摘要翻译：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。

2. 发明授权

US08251517B2 Scanned proximity detection method and apparatus for a scanned image projection system 有权
标题翻译：用于扫描图像投影系统的扫描接近检测方法和装置
公开(公告)号：US08251517B2
公开(公告)日：2012-08-28
申请号：US12615138
申请日：2009-11-09
申请人： Gregory T. Gibson , Joshua M. Hudman , Margaret K. Brown , Christian Dean DeJong
发明人： Gregory T. Gibson , Joshua M. Hudman , Margaret K. Brown , Christian Dean DeJong
IPC分类号： G03B21/14
CPC分类号： H04N9/3129
摘要： 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.
摘要翻译：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。

3. 发明申请

US20090147272A1 PROXIMITY DETECTION FOR CONTROL OF AN IMAGING DEVICE 审中-公开
标题翻译：用于控制成像装置的近似检测
公开(公告)号：US20090147272A1
公开(公告)日：2009-06-11
申请号：US11950639
申请日：2007-12-05
申请人： Gregory T. Gibson , Joshua M. Hudman , Randall B. Sprague
发明人： Gregory T. Gibson , Joshua M. Hudman , Randall B. Sprague
IPC分类号： G01B11/14 , G03B21/14
CPC分类号： G03B21/14 , H04N9/3155 , H04N9/3194
摘要： 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.
摘要翻译：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。

4. 发明授权

US08519983B2 Input device for a scanned beam display 有权
标题翻译：用于扫描光束显示的输入设备
公开(公告)号：US08519983B2
公开(公告)日：2013-08-27
申请号：US11967156
申请日：2007-12-29
申请人： Randall B. Sprague , Christian Dean DeJong , Gregory T. Gibson
发明人： Randall B. Sprague , Christian Dean DeJong , Gregory T. Gibson
IPC分类号： G06F3/041
CPC分类号： G06F3/03542 , G06F3/0346 , G06F3/03545 , G06F3/0423 , H04N9/3129 , H04N9/3147 , H04N9/3173
摘要： 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.
摘要翻译：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。

5. 发明申请

US20090167726A1 Input Device for a Scanned Beam Display 有权
标题翻译：扫描光束显示器的输入设备
公开(公告)号：US20090167726A1
公开(公告)日：2009-07-02
申请号：US11967156
申请日：2007-12-29
申请人： Randall B. Sprague , Christian Dean DeJong , Gregory T. Gibson
发明人： Randall B. Sprague , Christian Dean DeJong , Gregory T. Gibson
IPC分类号： G06F3/033
CPC分类号： G06F3/03542 , G06F3/0346 , G06F3/03545 , G06F3/0423 , H04N9/3129 , H04N9/3147 , H04N9/3173
摘要： 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.
摘要翻译：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。

6. 发明授权

US07999244B2 MEMS devices and related scanned beam devices 有权
标题翻译： MEMS器件和相关的扫描光束器件
公开(公告)号：US07999244B2
公开(公告)日：2011-08-16
申请号：US12004090
申请日：2007-12-18
申请人： Wyatt Davis , Gregory T. Gibson , Hakan Urey , Thomas W. Montague , Bin Xue , John Lewis
发明人： Wyatt Davis , Gregory T. Gibson , Hakan Urey , Thomas W. Montague , Bin Xue , John Lewis
IPC分类号： G01N21/86
CPC分类号： G02B23/2423 , G02B26/0841 , G02B26/085
摘要： 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.
摘要翻译：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。

7. 发明申请

US20080265148A1 Determining an operational state of a MEMS based laser scanner 有权
标题翻译：确定基于MEMS的激光扫描仪的操作状态
公开(公告)号：US20080265148A1
公开(公告)日：2008-10-30
申请号：US11796531
申请日：2007-04-26
申请人： Gregory T. Gibson , Richard A. James , Wyatt O. Davis
发明人： Gregory T. Gibson , Richard A. James , Wyatt O. Davis
IPC分类号： H01J3/14
CPC分类号： G06K7/10584 , G02B26/085 , G06K7/10603
摘要： 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.
摘要翻译：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。

8. 发明授权

US07717341B2 Bar code scanner having an adaptive threshold using a first derivative amplitude 有权
标题翻译：具有使用一阶导数幅度的自适应阈值的条形码扫描器
公开(公告)号：US07717341B2
公开(公告)日：2010-05-18
申请号：US11796276
申请日：2007-04-26
申请人： Gregory T. Gibson
发明人： Gregory T. Gibson
IPC分类号： G02B26/00 , G06K7/10 , G06K9/22 , G06K19/06
CPC分类号： G06K7/10633 , G06K7/1478
摘要： 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.
摘要翻译：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。

9. 发明申请

US20080266627A1 Non-resonant drive for adaptive trajectory of a scanner system having a MEMS device 有权
标题翻译：具有MEMS装置的扫描器系统的自适应轨迹的非谐振驱动
公开(公告)号：US20080266627A1
公开(公告)日：2008-10-30
申请号：US11796230
申请日：2007-04-26
申请人： Dean R. Brown , Wyatt O. Davis , Gregory T. Gibson , Richard A. James
发明人： Dean R. Brown , Wyatt O. Davis , Gregory T. Gibson , Richard A. James
IPC分类号： G02B26/08
CPC分类号： G02B26/085 , G02B7/1821
摘要： 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.
摘要翻译：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。

10. 发明授权

US08514205B2 Circuit for electrostatically driving a plant such as a comb-drive microelectromechanical system (MEMS) mirror and related subsystem, system, and method 有权
标题翻译：用于静电驱动工厂的电路，例如梳状驱动微机电系统（MEMS）镜和相关子系统，系统和方法
公开(公告)号：US08514205B2
公开(公告)日：2013-08-20
申请号：US11648852
申请日：2006-12-29
申请人： Wyatt O. Davis , Gregory T. Gibson , Thomas W. Montague , Robert J. Dunki-Jacobs , Michael P. Weir
发明人： Wyatt O. Davis , Gregory T. Gibson , Thomas W. Montague , Robert J. Dunki-Jacobs , Michael P. Weir
IPC分类号： G09G5/00
CPC分类号： G02B26/0841 , G02B26/105
摘要： A drive circuit includes a generator and a driver. The generator generates a signal having a period and a varying amplitude during a driving portion of the period, and the driver is coupled to the generator and drives a plate of an electrostatically drivable plant with the signal. The drive circuit may be used to drive a mirror plate of a comb-drive MEMS mirror.
摘要翻译：驱动电路包括发电机和驱动器。在该周期的驱动部分期间，发电机产生具有周期和变化幅度的信号，并且驱动器耦合到发电机并利用该信号驱动静电驱动工厂的板。驱动电路可以用于驱动梳状驱动MEMS镜的镜面板。

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