2. The sign language action generating device according to claim 1 , wherein the action adjustment unit adjusts a position coordinate or a velocity using, as the prescribed threshold range, a threshold range of a shift amount of a prescribed position coordinate or a prescribed velocity, or a threshold range of an evaluation function calculated based on the shift amount.
2. The sign language action generating device according to claim 1 , wherein the action adjustment unit adjusts a position coordinate or a velocity using, as the prescribed threshold range, a threshold range of a shift amount of a prescribed position coordinate or a prescribed velocity, or a threshold range of an evaluation function calculated based on the shift amount. 3. The sign language action generating device according to claim 2 , wherein the action adjustment unit comprises an end point coordinate setting unit that, if interference is generated in the pair of words, adjusts a shift amount of a position coordinate of an end point of a sign language action having the same meaning as the prior word of the pair of words, or an evaluation function calculated based on the shift amount, within a prescribed threshold range.