AUDIBLE SOUND FOR INDUCING FMTHETA AND GENERATING METHOD THEREFOR

Japanese Patent JP3705525

B2

PROBLEM TO BE SOLVED: To improve the desirable condition of mind and body affected by Fmθ and αwave, that is, the power of attention and concentration, and further quicken the progress of relaxation and rest of mind and body by letting a person hear an audible sound including a modulated wave formed by superposing ultra low frequency below a designated hertz on low frequency in the audible region.
SOLUTION: When a change-over switch S is put in a contact (b) position to start a circuit, the outputs of first and second oscillation circuits O1, O2 are fed to a modulation circuit M. Both outputs are mixed hear to be amplituded and modulated, and a modulation wave is led out at the output end of the modulation circuit M. In this modulated wave, a sine wave with a frequency of about 2 to 10 hertz is superposed on a sine wave with a frequency of about 150 hertz. The output of the modulation circuit M is amplified by amplifiers A1, A2 to energize a pair of speaker units in a headphone P. When an object person operates with the headphone P put on the head, an audible sound including a modulated wave in which a since wave with a frequency of about 2 to 10 hertz is superposed on a sine wave with a frequency of about 150 hertz can be heard by his ears.

Kazuzo Masaki
Osamu Matsuda

JP7308398A

October 12, 2005

March 09, 1998

Click for automatic bibliography generation  

Ken Hayashibara

A61M21/02; G10K15/04; (IPC1-7): A61M21/02; G10K15/04

JP250749B2
JP659313B2
JP2814419B2
JP2814420B2
JP3194187B2
JP3444632B2

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