US 11,633,264 B2 · Determining and tracking movement

Abstract

Apparatuses, components, devices, methods, and systems for determining and tracking movement are provided. An example apparatus that includes a position indicating system having a first light emitter positioned and oriented to emit light in a first direction, a second light emitter positioned and oriented to emit light in a second direction, the second direction being collinear with and opposite to the first direction; and a third light emitter positioned and oriented to emit light in a third direction, the third direction being different than the first direction and the second direction. The third direction may be offset from the first direction by an offset angle that is an acute angle. The apparatus may also include a screen; an imaging system configured to capture an image of the screen. The first light emitter and the third light emitter may both be configured to emit light toward the screen.

Claims16

Dependent claims

An apparatus comprising:

a screen;
an imaging system configured to capture an image of the screen;
and
a position indicating system that includes:
a housing;
a first light emitter disposed within the housing and oriented to emit light in a first direction toward the screen;
a second light emitter disposed within the housing and oriented to emit light in a second direction, the second direction being collinear with and opposite to the first direction;
and
a third light emitter disposed within the housing and oriented to emit light in a third direction, the third direction being different than the first direction and the second direction;
wherein the screen is disposed between the position indicating system and the imaging system.

7 more elements

An apparatus comprising:

a screen assembly including a first planar screen and a second planar screen;
an imaging system including a first camera configured to capture images of the first planar screen and a second camera configured to capture images of the second planar screen;
a position indicating system including:
a first light emitter positioned and oriented to emit light in a first direction toward the first planar screen;
a second light emitter positioned and oriented to emit light in a second direction toward the second planar screen, the second direction being collinear with and opposite to the first direction;
and
a third light emitter positioned and oriented to emit light in a third direction toward the first planar screen, the third direction being different than the first direction and the second direction.

4 more elements

Dependencies are inferred from the claim text.

Determining and tracking movement

Life of this patent

Determining and tracking movement

Life of this patent

Abstract

Claims16