Patent ID: 9233243
Filing Date: 2016-01-12
CPC Classification: A61B,A61N

Claim Text:
1. A low frequency stimulator, comprising: a beat extraction unit configured to extract a beat through a comparison of sizes of sound pressures between one or more acoustic signals having different frequencies generated when music is played by a music playing device; a pulse generation unit configured to generate a pulse having the same size as a size of the extracted beat; and one pair of electrode pads configured to a body of a user and configured to apply electrical stimulation having an intensity corresponding to a size of the generated pulse to the body of the user, wherein the beat extraction unit includes: a band mode selection unit configured to receive selection of any one between a single register band mode and a plural-register band mode from the user; a single register band beat extraction unit configured to extract an acoustic signal having a frequency of a single register band in which a sound pressure size is largest through a comparison of sizes of sound pressures of some or all of the acoustic signals having the frequency of the single register band among the one or more acoustic signals as the beat for each unit time according to the selection of the single register band mode; and a plural-register band beat extraction unit configured to extract an acoustic signal having a frequency belonging to a plural-register band in which a sound pressure size is largest through a comparison of sizes of sound pressures of some or all of the acoustic signals having the frequency belonging to the plural-register bands among the one or more acoustic signals as the beat for each unit time according to the selection of the plural-register band mode.