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公开(公告)号：US09762862B1
公开(公告)日：2017-09-12
申请号：US13633015
申请日：2012-10-01
发明人： William Spencer Worley, III , Christopher D. Coley , Eric G. Marason , William Thomas Weatherford
摘要： A device includes a projection and camera system to create an augmented reality environment in which images are projected onto a scene and user movement within the scene is captured. The projection and camera system have a camera to image scattered light from the environment and determine depth of objects in the environment. The system also has a projector to project the images onto the scene. The projection images and captured environment images share a common optical path through the same lens. The system includes an image noise cancelation system to cancel, remove, or otherwise reduce unwanted image noise caused by internal reflection of the projection images from the environment images.
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公开(公告)号：US09461570B1
公开(公告)日：2016-10-04
申请号：US14634683
申请日：2015-02-27
发明人： Navid Poulad , Jijie Xu , Christopher D. Coley
摘要： A stepper motor may be controlled by a controller to provide extended revolution of a motor shaft while operating in a first mode and to allow a user to manually intervene with an intended position or rotation of the motor shaft while operating in a second mode. In some embodiments, the controller may adjust a torque applied to the stepper mode during operation of the stepper motor. The controller may reduce a torque applied by the stepper motor to a lower torque while the user intervenes with the intended position or rotation of the motor and increase the torque to a holding torque after the user intervention has ended. Thus, the controller may dynamically adjust a torque of the stepper motor in response to detection of the user intervention.
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公开(公告)号：US09979953B1
公开(公告)日：2018-05-22
申请号：US14926295
申请日：2015-10-29
CPC分类号： H04N13/296 , G01B11/2513 , G01S17/023 , G06T7/0065 , H04N5/141 , H04N5/2256 , H04N5/23212 , H04N5/2353 , H04N13/106 , H04N13/271
摘要： The depth of one or more objects within a scene may be determined utilizing system that includes a single light source, a reflector (e.g., an ellipsoidal reflector), a shutter mechanism associated with the light source, and a camera. More particularly, the light source may output light that is directed towards the scene (a first set of light beams) and towards the reflector (a second set of light beams) utilizing the shutter mechanism. The reflector may reflect the second set of light beams towards the scene. The camera may then capture a first image that corresponds to the first set of light beams and a second image that corresponds to the second set of light beams. The depth of a particular one of the objects within the scene may be determined based at least in part on the first image and the second image.
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公开(公告)号：US09541125B1
公开(公告)日：2017-01-10
申请号：US13689401
申请日：2012-11-29
CPC分类号： F16C11/10 , F16C11/106 , Y10T403/32262
摘要： Projection and camera systems may employ a joint locking mechanism that may enable a user to reposition or move structures (arms, lenses, etc.) that are otherwise locked in position. The joint locking mechanism may include a touch-activated presence detector to sense a presence of an extremity of a user. In response to the presence detector sensing the presence, an actuator may unlock a joint or structure to enable movement of the joint or structure while the presence detector continues to sense the presence. In response to a detection of an absence of the extremity, the actuator may return to a locked state to prevent further movement of the joint or structure.
摘要翻译： 投射和照相机系统可以采用接合锁定机构，其可以使用户能够重新定位或移动否则锁定在适当位置的结构（臂，透镜等）。 接合锁定机构可以包括触摸激活的存在检测器以感测用户的末端的存在。 响应于存在检测器感测到存在，致动器可以解锁接头或结构以使得接头或结构能够移动，同时存在检测器继续感测存在。 响应于不存在末端的检测，致动器可以返回到锁定状态以防止接头或结构的进一步移动。
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