US5406957A
Expired / Lapsed
US
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Electroencephalic neurofeedback apparatus for training and tracking of cognitive states
Assignee: EMTEE ASSOCIATES LP
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Filing: 1993-09-14
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Granted: 1995-04-18
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Expires: 2013-09-14
Abstract
Abstract A biofeedback system provides measurement of bioelectric signals in up to about a 1 hertz window of particular bandwidths. A bioelectric signal is amplified by a preamplifier. The composite amplitude of the signal is determined by performing a fast Fourier transform on the amplified signal. Particular bandwidths can be displayed and monitored on a computer. The display permits training of the person being monitored with audio or verbal feedback.
Inventors
- 👤 Michael A. Tansey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:37
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/72; A61B5/7235; A61B5/7253; A61B5/7257; A61B5/24; A61B5/316; A61B5/369; A61B5/375; A61B5/74; A61B5/742
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
128 words
An apparatus for monitoring a brainwave signature of a cognitive state of a person comprising: detecting means for detecting a bioelectric EEG signal from said person; amplifying means for amplifying said detected bioelectric EEG signal, said amplified bioelectric signal including a set of bandwidths, each of said bandwidths having a range of one hertz or less around a selected frequency; digital signal processing means for processing said set of bandwidths, said signal processing means including performing fast Fourier transforms on said bandwidths for determining respective amplitudes for each of said bandwidths in said set of bandwidths; and display means for displaying said respective amplitudes in respective windows of a computer display; wherein said brainwave signature of said cognitive state of said person is displayed as said respective amplitudes.
Claim 2
Independent Claim
128 words
An apparatus for monitoring a brainwave signature of a cognitive state of a person comprising: detecting means for detecting a bioelectric EEG signal from said person; amplifying means for amplifying said detected bioelectric EEG signal, said amplified bioelectric signal including a set of bandwidths, each of said bandwidths having a range of one hertz or less around a selected frequency; digital signal processing means for processing said set of bandwidths, said signal processing means including performing fast Fourier transforms on said bandwidths for determining respective amplitudes for each of said bandwidths in said set of bandwidths; and display means for displaying said respective amplitudes in respective windows of a computer display; wherein said brainwave signature of said cognitive state of said person is displayed as said respective amplitudes.
Claim 3
Dependent Claim
17 words
The apparatus of claim 1 further comprising: storage means in said computer for storing said brainwave signature.
Claim 4
Dependent Claim
14 words
The apparatus of claim 2 wherein said brainwave signature is displayed in real time.
Claim 5
Dependent Claim
19 words
The apparatus of claim 3 wherein said bioelectric signal is detected at a rate of 8,000 times per second.
Claim 6
Dependent Claim
18 words
The apparatus of claim 4 wherein the detected bioelectric signal is amplified by a factor of about 100.
Claim 7
Dependent Claim
44 words
The apparatus of claim 5 further comprising: sound means, said sound means including a respective music score for each of said bandwidths, said sound means increasing the loudness of said respective music score in response to an increase in said amplitude of said bandwidths.
Claim 8
Dependent Claim
14 words
The apparatus of claim 1 wherein one of said selected frequencies is 28 Hz.
Claim 9
Dependent Claim
17 words
The apparatus of claim 1 wherein three of said selected frequencies are 7, 10 and 16 Hz.
Claim 10
Dependent Claim
18 words
The apparatus of claim 1 wherein four of said selected frequencies are 7, 10, 16 and 28 Hz.
Claim 11
Dependent Claim
17 words
The apparatus of claim 1 wherein three of said selected frequencies are 7, 10 and 12 Hz.
Claim 12
Independent Claim
121 words
A method for monitoring a brainwave signature of a cognitive state of a person comprising the steps of: detecting a bioelectric EEG signal from said person; amplifying said detected bioelectric EEG signal, said amplified bioelectric signal including a set of bandwidths, each of said bandwidths having a range of one hertz or less around a selected frequency; processing said set of bandwidths, said processing step including performing a fast Fourier transforms on said bandwidths in a digital computer for determining respective amplitudes for each of said bandwidths in said set of bandwidths; and displaying said respective amplitudes in respective windows of a computer display, wherein said brainwave signature of said cognitive state of said person is displayed as said respective amplitudes.
Claim 13
Independent Claim
121 words
A method for monitoring a brainwave signature of a cognitive state of a person comprising the steps of: detecting a bioelectric EEG signal from said person; amplifying said detected bioelectric EEG signal, said amplified bioelectric signal including a set of bandwidths, each of said bandwidths having a range of one hertz or less around a selected frequency; processing said set of bandwidths, said processing step including performing a fast Fourier transforms on said bandwidths in a digital computer for determining respective amplitudes for each of said bandwidths in said set of bandwidths; and displaying said respective amplitudes in respective windows of a computer display, wherein said brainwave signature of said cognitive state of said person is displayed as said respective amplitudes.
Claim 14
Dependent Claim
19 words
The method of claim 11 further comprising the step of: storing said brainwave signatures in a computer storage means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-04-17 | 1998-10-17 | 1999-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-17 | 2002-10-17 | 2003-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-17 | 2006-10-17 | 2007-04-18 | $7700.00 | Window Closed / Lapsed |