Patent Document ID: 9927523
Application ID: 14493807
Patent Status: 1

Claim One:
1. A motion recognition device comprising: an emitter configured to emit an infrared ray in a pattern; a detector configured to detect events in a visible ray area and an infrared ray area; a filter configured to determine whether at least one portion of the detected events is detected by using the infrared ray emitted in the pattern, and to ignore or accept the detected events based on a determination result; and a motion recognizer configured to perform motion recognition based on the detected events accepted by the filter, wherein the filter is further configured to ignore a first detected event when the first detected event is not detected by using the infrared ray emitted in the pattern, and to accept a second detected event when at least one portion of the second detected event is detected by using the infrared ray emitted in the pattern, and wherein the first detected event ignored by the filter is blocked such that the motion recognizer performs the motion recognition based only on the second detected event accepted by the filter without the first detected event ignored by the filter.