IMPROVEMENTS MADE UP FOR TOOLS USED IN CRIMPING MACHINES, wherein the said tools bring a technical advance while compared to their basic operations, that is, for instance, the tool guillotine and crimping has multiplied its lifetime by six, i. An image space is obtained by imaging the reference space. Proximal ends of the contacts are held and fixed in terminal insertion holes formed in the housing and leading ends of the contacts being exposed from the terminal insertion holes. In one implementation, the possible classifications include: vowels, fricatives, narrowband, wideband, coughing, gender, and silence. The LED drive circuit includes a voltage clamp circuit for clamping the power supply voltage to an operating voltage of the switching regulator IC, converts an output voltage of a current detecting circuit for detecting a current flowing through an LED into the operating voltage of the switching regulator IC, and outputs the operating voltage. During one burst duration, a string of Pseudo Random Binary bit Sequence is generated in a certain sequence, where the first codes in the Pseudo Random Binary bit String generated in this burst duration follows the last code of a Pseudo Random Binary bit String generated in the preceding burst duration.