Electrical living body stimulation signal waveform generation device and electrical living body stimulation device

An electrical living body stimulation device comprising:

• a waveform generation unit configured to generate a low-frequency pulse signal wave of a frequency of less than 1 KHz and a high-frequency signal wave of a frequency of 10 KHz or more individually, the low-frequency pulse signal wave being a pulse wave created by synthesizing a rectangular wave and a gradual increase wave having a non-linearly increased waveform of the same cycle, a level of the low-frequency pulse signal wave being instantaneously raised and thereafter non-linearly increased so that the low-frequency pulse signal wave is a sword-like synthesized pulse wave;
• a waveform synthesis circuit configured to superimpose the high-frequency signal wave on the low-frequency pulse signal wave during an ON period of the low-frequency pulse signal wave to form a synthesized wave in which a level gradually rises from a point of time when the superimposition is started;
• an output control circuit configured to set an output level of the synthesized wave;
• and
• a microcomputer configured to control the waveform generation unit, the waveform waveform synthesis circuit and the output control circuit so as to control at least any of a plurality of parameters including the output level of the synthesized wave, a rising rate of the output level, and a cycle and ON/OFF periods of the low-frequency pulse signal wave,
• wherein the synthesized wave is given as an electrical stimulus to a living body.

An electrical living body stimulation signal waveform generation device comprising:

• a waveform generation unit configured to generate a low-frequency pulse signal wave of a frequency of less than 1 KHz and a high-frequency signal wave of a frequency of 10 KHz or more individually, the low-frequency pulse signal wave being a pulse wave created by adding a rectangular wave and a gradual increase wave having a non-linearly increased waveform of the same cycle, a level of the low frequency pulse signal starting at zero voltage at a time t0 and increasing instantaneously to a non-zero voltage v1 at a time t1 that occurs after the time t0, and then increasing in a non-linear manner from the time t1 to a time t2 that occurs after the time t1 to cause the level of the low frequency pulse signal to increase non-linearly from the voltage v1 to a voltage v2 greater than the voltage v1 between the time t1 and the time t2, and then the level of the low frequency pulse signal decreasing instantaneously from the voltage v2 to the zero voltage at a time t3 that occurs after the time t2;
• and
• a waveform synthesis circuit configured to superimpose the high-frequency signal wave on the low-frequency pulse signal wave during an ON period of the low-frequency pulse signal wave to form a synthesized wave having a waveform in which a level gradually rises from a point of time when the superimposition is started and the ON period and an OFF period of the low-frequency pulse signal wave are continuously repeated,
• wherein the synthesized wave is given as an electrical stimulus to a living body.