Systems and methods for using a MEMS projector to determine an orientation of a photosensor of an HMD or another controller
AssigneeSony Interactive Entertainment Inc.
InventorDominic Mallinson
Life of this patent
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Abstract
A method for determining an orientation of a photosensor of a controller with respect to a projector is described. The method includes generating, by a beam generator of the projector, a beam. The method further includes modifying a direction of travel of the beam using a micro-electro-mechanical systems (MEMS) mirror that moves in a pattern, detecting the beam, calculating a time at which the beam is detected, and determining based on the pattern and the time an orientation of the beam to determine the orientation of the photosensor.
Claims21
A head-mounted display comprising:
- a body having an inner region and an outer surface, wherein the inner region is configured to face a head of a user, wherein the outer surface is configured to face a real-world environment surrounding the user;
- a band coupled to the body and configured for support of the head-mounted display over the head of the user;
- a photosensor located on the outer surface, wherein the photosensor is configured to detect a beam output from a projector, wherein the beam is output according to a pattern of movement of a mirror of the projector;
- a clock source interfaced with the photosensor, wherein the clock source is used to indicate a time of hit at which the beam is detected by the photosensor;
- and
- a processor interfaced with the clock source, wherein the processor is configured to send the indication of the time of hit for facilitating a determination of an orientation of the photosensor with respect to the projector.
A method comprising:
- detecting, by a photosensor of a controller, a beam output from a projector, wherein the beam is output according to a pattern of movement of a mirror within the projector;
- generating a clock signal to indicate a time of hit at which the beam is detected by photosensor;
- and
- providing the indication of the time of hit for facilitating a determination of an orientation of the photosensor with respect to the projector.
A controller comprising:
- a body configured for use by a user, wherein the body has an outer surface;
- a photosensor located on the outer surface, wherein one of the photosensor is configured to detect a beam output from a projector, wherein the beam is output according to a pattern of movement of a mirror within the projector;
- a clock source configured to indicate a time of hit at which the beam is detected by the photosensor,
- a processor configured to send the indication of the time of hit for determining an orientation of the photosensor with respect to the projector.
Dependencies are inferred from the claim text.