FM theta-inducing audible sound, and method, device and recorded medium to generate the same
US5954630A · kind A · utility
36Cited by
4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2021/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An audible sound of modulated wave where a very low-frequency wave of about 20 hertz or lower is superposed on an audio low-frequency wave effectively stimulates Fm theta in human brain waves to improve attention and concentration during mental tasks when auditorily administered. The audible sound is also effective in stimulation of human alpha wave when the very low-frequency wave lies within the range of about 2-10 hertz. Such audible sound is artificially obtainable by generating an electric signal which contains such a modulated wave, and transducing it into audible sound wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.