Sound-induced sleep method and a system therefor
First Claim
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1. A method for sound-induced sleep comprising:
- detecting brainwave signals of a subject;
analyzing the brainwave signals to determine a current sleepy state of the subject;
selecting a sound in response to the current sleepy state of the subject based on a quantified association index between the brainwave signals of the subject and acoustical features of the sound, wherein the current sleepy state of the subject comprises a sleepy state of the subject and a non-sleepy state of the subject, and wherein the quantified association index is obtained by determining a correlation between brainwave signals of the subject and the acoustical features of the sound, the correlation being expressed using a Canonical Correlation Analysis which simultaneously maximizes the correlation between the brainwave signals of the subject and the acoustical features of the sound and maximizes a discrimination between the sleepy state of the subject and the non-sleepy state of the subject; and
playing the sound to the subject.
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Abstract
A method and system for sound-induced sleep is provided. The method includes detecting brainwave signals of a subject. The method further includes analyzing the brainwave signals to determine a current sleepy state of the subject and selecting a sound in response to the current sleepy state based on a quantified association index between the brainwave signals and acoustical features of the sound. The method further more includes playing the sound to the subject.
8 Citations
19 Claims
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1. A method for sound-induced sleep comprising:
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detecting brainwave signals of a subject; analyzing the brainwave signals to determine a current sleepy state of the subject; selecting a sound in response to the current sleepy state of the subject based on a quantified association index between the brainwave signals of the subject and acoustical features of the sound, wherein the current sleepy state of the subject comprises a sleepy state of the subject and a non-sleepy state of the subject, and wherein the quantified association index is obtained by determining a correlation between brainwave signals of the subject and the acoustical features of the sound, the correlation being expressed using a Canonical Correlation Analysis which simultaneously maximizes the correlation between the brainwave signals of the subject and the acoustical features of the sound and maximizes a discrimination between the sleepy state of the subject and the non-sleepy state of the subject; and playing the sound to the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for sound-induced sleep comprising:
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a detector module configured to detect brainwave signals of a subject; an analyzer module configured to analyze the brainwave signals to determine a current sleepy state of the subject, wherein the current sleepy state of the subject comprises a sleepy state of the subject and a non-sleepy state of the subject; a processor module configured to select a sound in response to the current sleepy state based on a quantified association index between the brainwave signals and acoustical features of the sound, wherein the processor module obtains the quantified association index by determining a correlation between the brainwave signals and the acoustical features of the sound, the correlation being expressed using a Canonical Correlation Analysis which simultaneously maximizes the correlation between the brainwave signals of the subject and the acoustical features of the sound and maximizes a discrimination between the sleepy state of the subject and the non-sleepy state of the subject; and a player module configured to play the sound to the subject. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification