Patent ID: 9406242
Filing Date: 2016-08-02
CPC Classification: G09B

Claim Text:
1. A skill judging device comprising: a musical sound generation instructing unit which instructs generation of a predetermined musical sound to a sound output unit, every time a performance action is played with a performance appliance; a position sensor which captures an image of the performance appliance as a subject, and which detects position coordinates of the performance appliance on an image plane of the image every time the performance action is played with the performance appliance; a variations sensor which detects an amount of shift of each of the position coordinates detected by the position sensor from a target position defined in a predetermined performance area; a skill judging unit which calculates a sum of the amounts of the shifts from the target position of a predetermined number of the performance actions, and which judges one of a plurality of predetermined ranges within which the sum belongs, wherein each of the plurality of predetermined ranges represents a skill level based on a degree of a performance action variation; a notification unit which notifies a result judged by the skill judging unit; and a display device which displays the position coordinates of each performance action as plane coordinates on the display device by being superimposed on an image illustrating concentric circles about a center point corresponding to the target position of the performance area.