Brain wave inducing system
First Claim
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1. A brain wave inducing system comprising:
- sensors for detecting brain waves of a user;
a band-pass filter for extracting particular brain waves including an α
wave included in a detected brain wave,the band-pass filter comprising a first band-pass filter having a narrow pass band, and a second band-pass filter having a wide pass band connected in parallel to said first band-pass filter;
first selecting means for selecting one of the first and second band-pass filters, wherein said first band pass filter corresponds to an α
wave in an eye-closed rest state of the user and has a narrow pass filter corresponding to the α
wave in an eye-closed rest state of the user, and wherein said second band pass filter corresponds to an α
wave in a sleep transient state of the user and has a wide pass filter corresponding to an α
wave in the sleep transient state of the user;
output means for producing a stimulation signal dependent on an α
wave extracted by a selected band-pass filter; and
light emitting means responsive to the stimulation signal for emitting a stimulation light to the user.
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Abstract
Sensors are provided for detecting brain waves of a user, and a band-pass filter is provided for extracting a particular brain waves including an α wave included in a detected brain wave. The band-pass filter comprises a first band-pass filter having a narrow pass band, and a second band-pass filter having a wide pass band. One of the first and second band-pass filters is selected, and a stimulation signal is produced in dependency on an α wave extracted by a selected band-pass filter. In accordance with the stimulation signal, a stimulation light is emitted to the user in order to induce the user to relax or sleeping state.
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Citations
6 Claims
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1. A brain wave inducing system comprising:
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sensors for detecting brain waves of a user; a band-pass filter for extracting particular brain waves including an α
wave included in a detected brain wave,the band-pass filter comprising a first band-pass filter having a narrow pass band, and a second band-pass filter having a wide pass band connected in parallel to said first band-pass filter; first selecting means for selecting one of the first and second band-pass filters, wherein said first band pass filter corresponds to an α
wave in an eye-closed rest state of the user and has a narrow pass filter corresponding to the α
wave in an eye-closed rest state of the user, and wherein said second band pass filter corresponds to an α
wave in a sleep transient state of the user and has a wide pass filter corresponding to an α
wave in the sleep transient state of the user;output means for producing a stimulation signal dependent on an α
wave extracted by a selected band-pass filter; andlight emitting means responsive to the stimulation signal for emitting a stimulation light to the user. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification