Patent ID: 9524048
Filing Date: 2016-12-20
CPC Classification: G06F

Claim Text:
1. A three-dimensional (3D) interactive method between a 3D interactive input device including multiple first nodes and a 3D display device including at least three second nodes, comprising: receiving a start command from a user; based on the received start command, controlling multiple signal transmission devices to transmit position detection signals using different channel resources; based on a starting time point of the received start command, ending time points at which signal receiving devices receive position detection signals from the signal transmission devices, and 3D spatial position coordinates of the second nodes relative to a specific surface of the 3D display device, determining 3D spatial position coordinates of the first nodes relative to the specific surface; and based on the 3D spatial position coordinates of at least two first nodes relative to the specific surface, rebuilding 3D contour of the 3D interactive input device to determine gestures of the 3D interactive input device wherein the determining the 3D spatial position coordinates of the first nodes relative to the specific surface includes: establishing a 3D spatial coordinate system based on the specific surface; obtaining coordinates of the second nodes relative to the 3D spatial coordinate system establishing equations of the second nodes relative to any first node by: wherein (x based on all the established equations, calculating coordinates of the first nodes relative to the 3D spatial coordinate system as 3D spatial position coordinates of the first nodes relative to the specific surface.