| Publication number | US3951134 A |
| Publication type | Grant |
| Application number | US 05/494,518 |
| Publication date | Apr 20, 1976 |
| Filing date | Aug 5, 1974 |
| Priority date | Aug 5, 1974 |
| Publication number | 05494518, 494518, US 3951134 A, US 3951134A, US-A-3951134, US3951134 A, US3951134A |
| Inventors | Robert G. Malech |
| Original Assignee | Dorne & Margolin Inc. |
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US 3951134 A
Abstract
Apparatus for and method of sensing brain waves at a position remote from a subject whereby electromagnetic signals of different frequencies are simultaneously transmitted to the brain of the subject in which the signals interfere with one another to yield a waveform which is modulated by the subject's brain waves. The interference waveform which is representative of the brain wave activity is re-transmitted by the brain to a receiver where it is demodulated and amplified. The demodulated waveform is then displayed for visual viewing and routed to a computer for further processing and analysis. The demodulated waveform also can be used to produce a compensating signal which is transmitted back to the brain to effect a desired change in electrical activity therein.
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