| 摘要 |
PROBLEM TO BE SOLVED: To retrieve position and contents of a desired object for retrieval within a short period of time by checking an electrical voice signal with a registered identification code in a voice recognition means and generating a control signal, when these are matched, to start an ultrasonic linear motor. SOLUTION: A traveling wave type microphone 3 converts a voice signal 2 into an electrical voice signal to generate a voice data S1. Next, an input signal is checked, in a voice recognition means 4, with an identification code registered to an identification memory 5. A control signal is then generated when these are matched to activate an ultrasonic linear motor 6. Thereby, a mechanical force is generated at the surface of a self-running type voice reaction unit 1. In this case, the linear motor 6 sends a drive current S4 to a direction determining means 7 of a load detecting means and moving direction control means, where a value of load is detected to generate a switch control signal S5 and thereby a driving direction of the linear motor 6 is switched. Thereby, position and contents of the desired object of retrieval can be retrieved within a short period of time. |
