Patent ID: 9454264
Filing Date: 2016-09-27
CPC Classification: G06F

Claim Text:
1. A manipulation input device comprising: a projection component that projects an image on a projection surface by scanning light from a light source; a photodetector that detects as scattered light the light reflected by a manipulation object that has moved into a specific detection range including the projection surface; and an inclination determination component that acquires, for a plurality of scan lines of the light, a plurality of sets of position information of the manipulation object that is specified based on scanning angle information when the photodetector has detected the scattered light, respectively, and acquires, for the plurality of the scan lines, a plurality of sets of width information of the manipulation object that corresponds to a continuous detection duration during which the photodetector continuously detects the scattered light, respectively, the inclination determination component further determining inclination of the manipulation object with respect to a direction perpendicular to the projection surface based on at least one set of temporal changes in the plurality of sets of the width information for the plurality of the scan lines and temporal changes in the plurality of sets of the position information for the plurality of the scan lines.