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1.发明申请System and Method for Assisting a User in Locating Physical Objects While the User is in a Virtual Reality Environment 有权用户在虚拟现实环境中协助用户定位物理对象的系统和方法公开(公告)号：US20160171770A1
公开(公告)日：2016-06-16
申请号：US14793729
申请日：2015-07-07
发明人： Owen Walter Pedrotti , Alejandro Santiago Diaz , Steven L. Braman , Danny G. Woodall , Amir Rubin
CPC分类号： G06F3/002 , G02B27/017 , G02B2027/0138 , G02B2027/0167 , G02B2027/0187 , G06F3/011 , G06F3/012 , G06F2203/012
摘要： A method and apparatus is disclosed for assisting a user, wearing a head mounted display (HMD) that covers a user's field of vision and has a tracker providing information regarding the position and orientation of the HMD, in locating a physical controller located on a physical base station. A processor causes the HMD to display a virtual world, including a virtual representation of the physical base station and physical controller along with a virtual hand that helps guide the user to the physical base station to allow the user to pick up the physical controller. Another embodiment allows an area in the physical world to be defined within which the user should remain, for example to avoid physical obstacles. The processor causes the HMD to display a warning, such as a virtual fence, to alert the user if the user approaches to within a preselected distance of the boundary.
摘要翻译： 公开了一种方法和装置，用于帮助用户佩戴覆盖用户视野的头戴式显示器（HMD），并且具有跟踪器，其提供关于HMD的位置和取向的信息，以定位位于物理上的物理控制器 基站。 处理器使得HMD显示虚拟世界，包括物理基站和物理控制器的虚拟表示以及有助于将用户引导到物理基站以允许用户拾取物理控制器的虚拟手。 另一个实施例允许在物理世界中定义用户应该保留的区域，例如以避免物理障碍物。 处理器使得HMD显示诸如虚拟围栏的警告，以便如果用户在边界的预选距离内接近，则警告用户。
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公开(公告)号：US20190107718A1
公开(公告)日：2019-04-11
申请号：US16203512
申请日：2018-11-28
IPC分类号： G02B27/01
CPC分类号： G02B27/0149 , G02B27/0101 , G02B2027/014 , G02B2027/0163 , G06K9/00335
摘要： A method and apparatus for self-relative body tracking in virtual reality systems using magnetic tracking is disclosed, which allows more accurate tracking of a user's body relative to the user's field of vision. A head-mounted magnetic tracking (HMMT) system is used, in which other parts of a user's body are tracked relative to the HMD on the user's head, rather than relative to a base station. This results in less distortion of the magnetic field used for tracking and thus allows for more accurate determination of the position and orientation of a user's body parts relative to the user's field of vision, so that a more accurate avatar may be presented on the HMD to the user. This allows the avatar of the user's body part to be shown in a location that corresponds closely to its physical position. In an alternative embodiment, multiple portions of the user's body may be tracked.
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3.发明申请Method And Apparatus For Correcting Magnetic Tracking Error With Inertial Measurement 审中-公开用惯性测量校正磁跟踪误差的方法和装置公开(公告)号：US20160377451A1
公开(公告)日：2016-12-29
申请号：US14797983
申请日：2015-07-13
发明人： Owen Walter Pedrotti , Oded Y. Zur
IPC分类号： G01C25/00
CPC分类号： G01C25/00 , G01R33/0023 , G01V7/00
摘要： A method and apparatus is disclosed for synchronizing a magnetic field transmitter and receiver to resolve phase ambiguity so that phase information for the position and orientation of the receiver may be derived and maintained. A synchronization process allows for the phase information to be initially derived based upon known information from other sources, and then tracked from one measurement to the next. In another embodiment, information from an inertial measurement unit (IMU) is used to determine the phase information or to correct for errors in the determination from receiver data of the position and orientation of a receiver, and prevent such errors from accumulating as the receiver moves away from a transmitter.
摘要翻译： 公开了一种用于使磁场发射器和接收器同步以解决相位模糊度的方法和装置，使得可以导出和维持接收器的位置和取向的相位信息。 同步过程允许基于来自其他来源的已知信息最初导出相位信息，然后从一个测量跟踪到下一个测量。 在另一个实施例中，使用来自惯性测量单元（IMU）的信息来确定相位信息或者从接收机的位置和方位的接收机数据确定确定中的错误，并且防止在接收机移动时这种错误累积 远离发射机。
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公开(公告)号：US10378921B2
公开(公告)日：2019-08-13
申请号：US14797983
申请日：2015-07-13
发明人： Owen Walter Pedrotti , Oded Y. Zur
摘要： A method and apparatus is disclosed for synchronizing a magnetic field transmitter and receiver to resolve phase ambiguity so that phase information for the position and orientation of the receiver may be derived and maintained. A synchronization process allows for the phase information to be initially derived based upon known information from other sources, and then tracked from one measurement to the next. In another embodiment, information from an inertial measurement unit (IMU) is used to determine the phase information or to correct for errors in the determination from receiver data of the position and orientation of a receiver, and prevent such errors from accumulating as the receiver moves away from a transmitter.
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公开(公告)号：US10162177B2
公开(公告)日：2018-12-25
申请号：US14797734
申请日：2015-07-13
摘要： A method and apparatus for self-relative body tracking in virtual reality systems using magnetic tracking is disclosed, which allows more accurate tracking of a user's body relative to the user's field of vision. A head-mounted magnetic tracking (HMMT) system is used, in which other parts of a user's body are tracked relative to the HMD on the user's head, rather than relative to a base station. This results in less distortion of the magnetic field used for tracking and thus allows for more accurate determination of the position and orientation of a user's body parts relative to the user's field of vision, so that a more accurate avatar may be presented on the HMD to the user. This allows the avatar of the user's body part to be shown in a location that corresponds closely to its physical position. In an alternative embodiment, multiple portions of the user's body may be tracked.
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公开(公告)号：US09690367B2
公开(公告)日：2017-06-27
申请号：US14793729
申请日：2015-07-07
发明人： Owen Walter Pedrotti , Alejandro Santiago Diaz , Steven L. Braman , Danny G. Woodall , Amir Rubin
CPC分类号： G06F3/002 , G02B27/017 , G02B2027/0138 , G02B2027/0167 , G02B2027/0187 , G06F3/011 , G06F3/012 , G06F2203/012
摘要： A method and apparatus is disclosed for assisting a user, wearing a head mounted display (HMD) that covers a user's field of vision and has a tracker providing information regarding the position and orientation of the HMD, in locating a physical controller located on a physical base station. A processor causes the HMD to display a virtual world, including a virtual representation of the physical base station and physical controller along with a virtual hand that helps guide the user to the physical base station to allow the user to pick up the physical controller. Another embodiment allows an area in the physical world to be defined within which the user should remain, for example to avoid physical obstacles. The processor causes the HMD to display a warning, such as a virtual fence, to alert the user if the user approaches to within a preselected distance of the boundary.
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7.发明申请Method And Apparatus For Synchronizing a Transmitter and Receiver in a Magnetic Tracking System 审中-公开用于在磁跟踪系统中同步发射器和接收器的方法和装置公开(公告)号：US20160011013A1
公开(公告)日：2016-01-14
申请号：US14798122
申请日：2015-07-13
发明人： Owen Walter Pedrotti , Oded Y. Zur
CPC分类号： G01C25/00 , G01R33/0023 , G01V7/00
摘要： A method and apparatus is disclosed for synchronizing a magnetic field transmitter and receiver to resolve phase ambiguity so that phase information for the position and orientation of the receiver may be derived and maintained. A synchronization process allows for the phase information to be initially derived based upon known information from other sources, and then tracked from one measurement to the next. In another embodiment, information from an inertial measurement unit (IMU) is used to determine the phase information or to correct for errors in the determination from receiver data of the position and orientation of a receiver, and prevent such errors from accumulating as the receiver moves away from a transmitter.
摘要翻译： 公开了一种用于使磁场发射器和接收器同步以解决相位模糊度的方法和装置，使得可以导出和维持接收器的位置和取向的相位信息。 同步过程允许基于来自其他来源的已知信息最初导出相位信息，然后从一个测量跟踪到下一个测量。 在另一个实施例中，使用来自惯性测量单元（IMU）的信息来确定相位信息或者从接收机的位置和方位的接收机数据确定确定中的错误，并且防止在接收机移动时这种错误累积 远离发射机。
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公开(公告)号：US10379344B2
公开(公告)日：2019-08-13
申请号：US16203512
申请日：2018-11-28
摘要： A method and apparatus for self-relative body tracking in virtual reality systems using magnetic tracking is disclosed, which allows more accurate tracking of a user's body relative to the user's field of vision. A head-mounted magnetic tracking (HMMT) system is used, in which other parts of a user's body are tracked relative to the HMD on the user's head, rather than relative to a base station. This results in less distortion of the magnetic field used for tracking and thus allows for more accurate determination of the position and orientation of a user's body parts relative to the user's field of vision, so that a more accurate avatar may be presented on the HMD to the user. This allows the avatar of the user's body part to be shown in a location that corresponds closely to its physical position. In an alternative embodiment, multiple portions of the user's body may be tracked.
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9.发明授权公开(公告)号：US10234306B2
公开(公告)日：2019-03-19
申请号：US14798122
申请日：2015-07-13
发明人： Owen Walter Pedrotti , Oded Y. Zur
摘要： A method and apparatus is disclosed for synchronizing a magnetic field transmitter and receiver to resolve phase ambiguity so that phase information for the position and orientation of the receiver may be derived and maintained. A synchronization process allows for the phase information to be initially derived based upon known information from other sources, and then tracked from one measurement to the next. In another embodiment, information from an inertial measurement unit (IMU) is used to determine the phase information or to correct for errors in the determination from receiver data of the position and orientation of a receiver, and prevent such errors from accumulating as the receiver moves away from a transmitter.
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公开(公告)号：US09851786B2
公开(公告)日：2017-12-26
申请号：US14793731
申请日：2015-07-07
发明人： Owen Walter Pedrotti , Alejandro Santiago Diaz , Steven L. Braman , Danny G. Woodall , Amir Rubin
CPC分类号： G06F3/012 , G02B27/017 , G02B2027/0138 , G02B2027/0167 , G02B2027/0187 , G06F3/002 , G06F3/011 , G06F3/014 , G06F2203/012
摘要： A method and apparatus is disclosed for assisting a user, wearing a head mounted display (HMD) that covers a user's field of vision and has a tracker providing information regarding the position and orientation of the HMD, in locating a physical controller located on a physical base station. A processor causes the HMD to display a virtual world, including a virtual representation of the physical base station and physical controller along with a virtual hand that helps guide the user to the physical base station to allow the user to pick up the physical controller. Another embodiment allows an area in the physical world to be defined within which the user should remain, for example to avoid physical obstacles. The processor causes the HMD to display a warning, such as a virtual fence, to alert the user if the user approaches to within a preselected distance of the boundary.
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