公开(公告)号：US11835720B2

公开(公告)日：2023-12-05

申请号：US17700902

申请日：2022-03-22

Applicant: GM Global Technology Operations LLC

Inventor： Kai-Han Chang ,  Thomas A. Seder

IPC: G02B27/01

CPC classification number: G02B27/0103 ,  G02B2027/0187 ,  G02B2027/0196

Abstract: A head-up display system of a vehicle visually transmits information to eyes of an occupant. The head-up display system comprises an illumination device configured to emit a display light and a windshield spaced from the illumination device and extending transverse to the display light. The head-up display system comprises a holographic panel coupled to and extending with the windshield and arranged to diffract the display light toward the eyes of the occupant. The display light emits toward the holographic panel in an entrance direction at an entrance angle relative to an axis normal to the holographic panel and diffracts away from the holographic panel in an exit direction at an exit angle relative to the axis, which is different than the entrance angle.

公开(公告)号：US11833901B2

公开(公告)日：2023-12-05

申请号：US17068393

申请日：2020-10-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas A. Seder ,  Kai-Han Chang ,  Leslie G. Ferris ,  Guy N. Kennerly

IPC: B60K35/00 ,  B60R11/04

CPC classification number: B60K35/00 ,  B60R11/04 ,  B60K2370/1529 ,  B60K2370/31 ,  B60K2370/334 ,  B60K2370/73 ,  B60K2370/785 ,  B60K2370/92 ,  B60R2300/105 ,  B60R2300/402

Abstract: A method includes placing a physical target on a windshield of a vehicle, mounting a fixture inside the vehicle to position a camera array on the fixture within a line of sight of a passenger, capturing images of the physical target using the camera array, and determining a difference between actual and target locations of the physical target in each image. In addition, the method includes controlling the HUD to display a virtual target on the windshield, capturing images of the virtual target using the camera array, and determining a target location of the virtual target in each image based on the difference. Further, the method includes determining an offset between an actual location of the virtual target in each image and the target location of the virtual target in each image, and adjusting the location of an image projected onto the windshield by the HUD based on the offset.

公开(公告)号：US11808599B2

公开(公告)日：2023-11-07

申请号：US17534987

申请日：2021-11-24

Applicant: GM Global Technology Operations LLC

Inventor： Kai-Han Chang ,  Thomas A. Seder

IPC: G01C21/36 ,  H04W4/46

CPC classification number: G01C21/3673 ,  G01C21/3602 ,  G01C21/365 ,  G01C21/3608 ,  G01C21/3647 ,  G01C21/3697 ,  H04W4/46

Abstract: A route recording with real-time annotation and re-display system includes a first automobile vehicle having one or more camera systems. An imaging display device defining a head-up display (HUD) is positioned within the first automobile vehicle and receives camera imaging data from the one or more camera systems. The HUD includes a video display screen presenting the camera imaging data either in real-time or re-displayed from a pre-recorded image file. A microphone array receives vehicle operator voice data of a first operator of the first automobile vehicle. An annotated-recorded-route is created by adding a user input of the first operator of the first automobile vehicle including the voice data. The annotated-recorded-route identifies specific coordinates or locations along a travel route driven by the automobile vehicle through the voice data after activating recording of the camera imaging data.

公开(公告)号：US20230302900A1

公开(公告)日：2023-09-28

申请号：US17702093

申请日：2022-03-23

Applicant: GM Global Technology Operations LLC

Inventor： John P. Weiss ,  Joseph F. Szczerba ,  Omer Tsimhoni ,  Thomas A. Seder ,  Kai-Han Chang

IPC: B60K35/00 ,  G06V20/56 ,  G06T11/00 ,  G06T3/40 ,  G06V10/60 ,  G02B27/01

CPC classification number: B60K35/00 ,  G06V20/56 ,  G06T11/001 ,  G06T3/40 ,  G06V10/60 ,  G02B27/0101 ,  G02B2027/0138 ,  B60K2370/1529 ,  B60K2370/166 ,  B60K2370/167 ,  B60K2370/168 ,  B60K2370/177 ,  B60K2370/21 ,  B60K2370/52 ,  B60K2370/178 ,  G01S13/931

Abstract: An augmented reality head-up display system for displaying graphics upon a windscreen of a vehicle includes a controller in electronic communication with one or more non-visual object detection sensors, one or more image-capturing devices, and a graphic projection device. The controller executes instructions to receive a plurality of detection points that indicate a presence of an object from the one or more non-visual object detection sensors. The controller executes instructions to compare the plurality of detection points with the image data of the environment surrounding the vehicle to identify a visually imperceptible object located in the environment. In response to identifying the visually imperceptible object, the controller determines a notification symbol that signifies the visually imperceptible object. The notification symbol is overlaid at a position upon the windscreen where the visually imperceptible object would normally be visible.

公开(公告)号：US11766938B1

公开(公告)日：2023-09-26

申请号：US17702093

申请日：2022-03-23

Applicant: GM Global Technology Operations LLC

Inventor： John P. Weiss ,  Joseph F. Szczerba ,  Omer Tsimhoni ,  Thomas A. Seder ,  Kai-Han Chang

IPC: B60K35/00 ,  G06T11/00 ,  G06T3/40 ,  G06V10/60 ,  G02B27/01 ,  G06V20/56 ,  G01S13/931

CPC classification number: B60K35/00 ,  G02B27/0101 ,  G06T3/40 ,  G06T11/001 ,  G06V10/60 ,  G06V20/56 ,  B60K2370/1529 ,  B60K2370/166 ,  B60K2370/167 ,  B60K2370/168 ,  B60K2370/177 ,  B60K2370/178 ,  B60K2370/21 ,  B60K2370/52 ,  G01S13/931 ,  G01S2013/9323 ,  G02B2027/0138

Abstract: An augmented reality head-up display system for displaying graphics upon a windscreen of a vehicle includes a controller in electronic communication with one or more non-visual object detection sensors, one or more image-capturing devices, and a graphic projection device. The controller executes instructions to receive a plurality of detection points that indicate a presence of an object from the one or more non-visual object detection sensors. The controller executes instructions to compare the plurality of detection points with the image data of the environment surrounding the vehicle to identify a visually imperceptible object located in the environment. In response to identifying the visually imperceptible object, the controller determines a notification symbol that signifies the visually imperceptible object. The notification symbol is overlaid at a position upon the windscreen where the visually imperceptible object would normally be visible.

公开(公告)号：US20230291879A1

公开(公告)日：2023-09-14

申请号：US17691506

申请日：2022-03-10

Applicant: GM Global Technology Operations LLC

Inventor： Kai-Han Chang ,  Thomas A. Seder ,  Joseph F. Szczerba ,  John P. Weiss

IPC: H04N9/31 ,  G02B27/01

CPC classification number: H04N9/3194 ,  G02B27/0103 ,  H04N9/3152

Abstract: A head-up display system includes a hologram projector adapted to project a holographic image, a spatial light modulator, an exit pupil replicator, a diffuser adapted to be positioned within a x-y plane at a center point of a vehicle eyellipse, the hologram projector adapted to project a dot pattern onto the diffuser, and a controller adapted to compare the location of the projected dot pattern to the center point of the vehicle eyellipse to identify misalignment of the projected dot pattern relative to the center point of the vehicle eyellipse.

公开(公告)号：US11702096B1

公开(公告)日：2023-07-18

申请号：US17704517

申请日：2022-03-25

Applicant: GM Global Technology Operations LLC

Inventor： James W. Wells ,  Thomas A. Seder ,  Kai-Han Chang ,  Bahram Khalighi

IPC: B60W50/14 ,  H04W4/46 ,  B60K35/00

CPC classification number: B60W50/14 ,  B60K35/00 ,  H04W4/46 ,  B60K2370/1529 ,  B60K2370/176 ,  B60K2370/177 ,  B60K2370/179 ,  B60K2370/188 ,  B60K2370/1868 ,  B60K2370/592 ,  B60K2370/5915 ,  B60W2050/146 ,  B60W2420/42 ,  B60W2554/4042 ,  B60W2554/802 ,  B60W2554/804 ,  B60W2556/65

Abstract: A vehicle type database includes a plurality of vehicle type profiles. Each of the vehicle type profiles is associated with a vehicle type having a vehicle type specific aerodynamic profile and includes optimal following ranges associated with the vehicle type. Each of the optimal following distance ranges is based on the vehicle type specific aerodynamic profile of the vehicle type and a vehicle speed of the vehicle type wherein a trailing vehicle disposed in the optimal following range is configured to operate at an optimal fuel efficiency. A first optimal following distance range is identified based on a first vehicle type and a first vehicle speed using a first vehicle type profile associated with the first vehicle type. A command is issued to the AR vehicle HUD display system to display a graphical representation of the first optimal following distance to overlay an actual view of the road.

公开(公告)号：US11582433B2

公开(公告)日：2023-02-14

申请号：US17231719

申请日：2021-04-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kai-Han Chang ,  Thomas A. Seder

IPC: H04N9/31 ,  G02B27/01

Abstract: A system for measuring speckle contrast includes: a head up display (HUD) system configured to output a predetermined image and having a first pixels per degree (PPD); an imaging colorimeter: having a field of view; positioned such that the predetermined image is in the field of view; having a second PPD that is at least 2.2 times greater than the first PPD of the HUD system; and configured to capture an image including the predetermined image; and a speckle contrast module configured to determine a speckle contrast of the HUD system based on the image.

公开(公告)号：US11543656B2

公开(公告)日：2023-01-03

申请号：US16531844

申请日：2019-08-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kai-Han Chang ,  Thomas A. Seder

IPC: G02B27/01 ,  G02B27/00 ,  B32B17/10 ,  B32B27/30 ,  B60J1/00 ,  B60J1/02 ,  G02B5/22 ,  B60K35/00

Abstract: A substrate, such as a windshield, includes: a first glass element; a second glass element; and a light absorptive element that is disposed directly between the second glass element and the first glass element, that is configured to receive and absorb light output by an image source.

公开(公告)号：US20220357574A1

公开(公告)日：2022-11-10

申请号：US17313134

申请日：2021-05-06

Applicant: GM Global Technology Operations LLC

Inventor： Kai-Han Chang ,  Thomas A. Seder

IPC: G02B27/01 ,  G02B5/18 ,  G02B5/04

Abstract: A holographic display system for a motor vehicle includes a coherent light source for generating a beam of coherent light and a spatial light modulator (SLM) having a two-dimensional pixel array, which is encoded with a hologram for modulating a phase of the coherent light. The SLM generates a first diffracted beam associated with a main image and a second diffracted beam associated with a conjugate image, where the first and second diffracted beams are angularly spaced from one another by a first angle. The system further includes an optical component for angularly spacing the first and second diffracted beams from one another by a second angle that is larger than the first angle. The system further includes a display surface receiving the first diffracted beam from the optical component to display the main image, with the display surface being free of the second diffracted beam.