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公开(公告)号：US11460698B2
公开(公告)日：2022-10-04
申请号：US17171328
申请日：2021-02-09
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
IPC: G06F1/16 , G02B27/01 , G06F3/01 , H01H9/02 , G02B27/00 , G01S1/68 , G01S5/02 , G01S1/70 , G06F3/16
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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公开(公告)号：US20250155711A1
公开(公告)日：2025-05-15
申请号：US19022978
申请日：2025-01-15
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
IPC: G02B27/01 , G01S1/68 , G01S1/70 , G01S5/02 , G02B27/00 , G06F1/16 , G06F3/01 , G06F3/16 , H01H9/02
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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公开(公告)号：US20210165217A1
公开(公告)日：2021-06-03
申请号：US17171328
申请日：2021-02-09
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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公开(公告)号：US12265221B2
公开(公告)日：2025-04-01
申请号：US17894845
申请日：2022-08-24
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
IPC: G02B27/01 , G01S1/68 , G01S1/70 , G01S5/02 , G02B27/00 , G06F1/16 , G06F3/01 , G06F3/16 , H01H9/02
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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公开(公告)号：US20190195979A1
公开(公告)日：2019-06-27
申请号：US16288856
申请日：2019-02-28
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
CPC classification number: G01S1/70 , G02B27/0093 , G02B27/017 , G02B27/0179 , G02B2027/0138 , G02B2027/0178 , G02B2027/0187 , G06F3/165 , H01H9/0228 , H01H9/0235
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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Patent Agency Ranking
公开(公告)号：US10261162B2
公开(公告)日：2019-04-16
申请号：US15495597
申请日：2017-04-24
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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公开(公告)号：US20170307891A1
公开(公告)日：2017-10-26
申请号：US15495597
申请日：2017-04-24
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
CPC classification number: G01S1/70 , G02B27/0093 , G02B27/017 , G02B27/0179 , G02B2027/0138 , G02B2027/0178 , G02B2027/0187 , G06F3/165 , H01H9/0228 , H01H9/0235
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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公开(公告)号：US20200064431A1
公开(公告)日：2020-02-27
申请号：US16670172
申请日：2019-10-31
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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公开(公告)号：US20220404622A1
公开(公告)日：2022-12-22
申请号：US17894845
申请日：2022-08-24
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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公开(公告)号：US10948721B2
公开(公告)日：2021-03-16
申请号：US16670172
申请日：2019-10-31
Applicant: Magic Leap, Inc.
Inventor： Brian Bucknor , Christopher Lopez , Michael Janusz Woods , Aly H. M. Aly , James William Palmer , Evan Francis Rynk
Abstract: Head-mounted augmented reality (AR) devices can track pose of a wearer's head to provide a three-dimensional virtual representation of objects in the wearer's environment. An electromagnetic (EM) tracking system can track head or body pose. A handheld user input device can include an EM emitter that generates an EM field, and the head-mounted AR device can include an EM sensor that senses the EM field. EM information from the sensor can be analyzed to determine location and/or orientation of the sensor and thereby the wearer's pose. The EM emitter and sensor may utilize time division multiplexing (TDM) or dynamic frequency tuning to operate at multiple frequencies. Voltage gain control may be implemented in the transmitter, rather than the sensor, allowing smaller and lighter weight sensor designs. The EM sensor can implement noise cancellation to reduce the level of EM interference generated by nearby audio speakers.
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