公开(公告)号：US11209657B2

公开(公告)日：2021-12-28

申请号：US16752478

申请日：2020-01-24

Applicant: Valve Corporation

Inventor： Joshua Hudman ,  Alan Yates ,  Gordon Wayne Stoll ,  Evan Fletcher

IPC: G06F3/0346 ,  G02B27/01 ,  G06F3/01

Abstract: Systems and methods for tracking the position of a head-mounted display (HMD) system component, such as a wearable HMD device or a hand-held controller. The HMD component may include a support structure that carries a plurality of angle sensitive detectors that are able to detect the angle of arrival of light emitted from a light source. A processor causes light sources to emit light according a specified pattern, and receive sensor data from the plurality of angle sensitive detectors. The processor may process the received sensor data using machine learning or other techniques to track a position of the head-mounted display component based on the processing of the received sensor data.

公开(公告)号：US20210232216A1

公开(公告)日：2021-07-29

申请号：US16773840

申请日：2020-01-27

Applicant: Valve Corporation

Inventor： Joshua Hudman ,  Alan Yates ,  Gordon Wayne Stoll ,  Evan Fletcher

IPC: G06F3/01 ,  G06N3/08 ,  G01J1/04 ,  G01J1/42

Abstract: The present disclosure is directed to systems and methods of eye tracking for use in various applications, such as virtual reality or augmented reality applications that include head-mounted display devices. An eye tracking subsystem may be provided that includes a plurality of assemblies that each include a light source, such as an LED, a light detector, such as a silicon photodiode, and a polarizer that is configured to prevent light reflected via specular reflection from reaching the light detectors so that only scattered light is detected by the light detectors. Machine learning or other techniques may be used to track or otherwise determine a user's gaze direction, which may be used by one or more components of an HMD device to improve its functionality in various ways.

公开(公告)号：US11045725B1

公开(公告)日：2021-06-29

申请号：US16412019

申请日：2019-05-14

Applicant: Valve Corporation

Inventor： David Sawyer ,  Tristan Reidford ,  Yasser Malaika ,  Alan Yates ,  Jeremy Selan

IPC: A63F13/26 ,  G06F3/0346 ,  G06F3/01 ,  G02B27/01 ,  A63F13/537 ,  G06F3/03

Abstract: Controller visualization systems and methods for use in virtual/augmented reality environments such as walk-around virtual reality environments are described. The virtual representation of a physical control device may be altered based on the context of the virtual environment. Certain embodiments combine the virtual rendering of the tracked control device with a real-time video representation of part of the operating space. In certain embodiments, the display of additional information relating to the function of interactive elements may be displayed based on context, such as when a specific action is required from a user in the virtual space.

公开(公告)号：US11933976B2

公开(公告)日：2024-03-19

申请号：US17954076

申请日：2022-09-27

Applicant: Valve Corporation

Inventor： Evan Fletcher ,  Jeffrey Walter Mucha ,  Joshua Mark Hudman ,  Alan Yates ,  Gordon Wayne Stoll ,  Jeffrey George Leinbaugh ,  Charles Lohr

IPC: G02B27/01 ,  G02B27/00

CPC classification number: G02B27/0093 ,  G02B27/0101 ,  G02B27/0172 ,  G02B27/0179 ,  G02B2027/0187

Abstract: Systems and methods for tracking the position of one or more head-mounted display (HMD) system components of an HMD system. The HMD components may carry a plurality of angle sensitive detectors or other types of detectors. The HMD system may be operative to detect corrupted position tracking samples, allowing such samples to be ignored, thereby improving the position tracking process. Control circuitry causes light sources to emit light according a specified pattern, and receives sensor data from the plurality of detectors. Control circuitry may process the sensor data, for example using machine learning or other techniques, to track a position of one or more HMD components.

公开(公告)号：US11442542B2

公开(公告)日：2022-09-13

申请号：US17365838

申请日：2021-07-01

Applicant: Valve Corporation

Inventor： Joshua Hudman ,  Alan Yates ,  Gordon Wayne Stoll ,  Evan Fletcher

IPC: G06F3/01 ,  G06N3/08 ,  G01J1/04 ,  G01J1/42 ,  G02B5/30 ,  G06N3/04

Abstract: The present disclosure is directed to systems and methods of eye tracking for use in various applications, such as virtual reality or augmented reality applications that include head-mounted display devices. An eye tracking subsystem may be provided that includes a plurality of assemblies that each include a light source, such as an LED, a light detector, such as a silicon photodiode, and a polarizer that is configured to prevent light reflected via specular reflection from reaching the light detectors so that only scattered light is detected by the light detectors. Machine learning or other techniques may be used to track or otherwise determine a user's gaze direction, which may be used by one or more components of an HMD device to improve its functionality in various ways.

公开(公告)号：US11378655B2

公开(公告)日：2022-07-05

申请号：US16408263

申请日：2019-05-09

Applicant: Valve Corporation

Inventor： Alan Yates ,  Jeremy Adam Selan

IPC: G01S7/481 ,  G01S7/4912

Abstract: Optical positional tracking systems that may be used in virtual reality (VR)/augmented reality (AR) applications are described. Exemplary implementations comprise one or more receivers and one or more transmitters. Exemplary transmitters contain two orthogonal rotors that each emit a fan-shaped laser beam. Each beam is swept as the rotors are spun at constant speed. Exemplary optical receivers can be relatively small, and mounted at convenient locations on the VR display. These receivers consist of small optical detectors that may be mounted on head-mounted VR displays. Exemplary systems determine position by measuring the time at which each swept beam crosses each receiver/detector.

公开(公告)号：US20210231962A1

公开(公告)日：2021-07-29

申请号：US16752478

申请日：2020-01-24

Applicant: Valve Corporation

Inventor： Joshua Hudman ,  Alan Yates ,  Gordon Wayne Stoll ,  Evan Fletcher

IPC: G02B27/01 ,  G06F3/01 ,  G06F3/0346

Abstract: Systems and methods for tracking the position of a head-mounted display (HMD) system component, such as a wearable HMD device or a hand-held controller. The HMD component may include a support structure that carries a plurality of angle sensitive detectors that are able to detect the angle of arrival of light emitted from a light source. A processor causes light sources to emit light according a specified pattern, and receive sensor data from the plurality of angle sensitive detectors. The processor may process the received sensor data using machine learning or other techniques to track a position of the head-mounted display component based on the processing of the received sensor data.

公开(公告)号：US20190331755A1

公开(公告)日：2019-10-31

申请号：US16408263

申请日：2019-05-09

Applicant: Valve Corporation

Inventor： Alan Yates ,  Jeremy Adam Selan

IPC: G01S1/70 ,  G01S7/481 ,  G01S7/491

Abstract: Optical positional tracking systems that may be used in virtual reality (VR)/augmented reality (AR) applications are described. Exemplary implementations comprise one or more receivers and one or more transmitters. Exemplary transmitters contain two orthogonal rotors that each emit a fan-shaped laser beam. Each beam is swept as the rotors are spun at constant speed. Exemplary optical receivers can be relatively small, and mounted at convenient locations on the VR display. These receivers consist of small optical detectors that may be mounted on head-mounted VR displays. Exemplary systems determine position by measuring the time at which each swept beam crosses each receiver/detector.