Apparatus for remotely monitoring and altering brain waves · Filed 1974 · Robert G. Malech · Dorne & Margolin Inc.
Two RF signals transmitted to the subject. The carrier modulates the ELF brain-wave signal per patent claim 1. Range: 10 to 200 MHz.
Patent claims remote operation. Signal attenuation increases with distance squared. Detection threshold at far range depends on transmitter power.
Output power determines effective range and SNR at the receiver. Higher power extends range at cost of RF detectability.
ELF overlay frequency. Delta: 1 to 4 Hz. Theta: 4 to 8 Hz. Alpha: 8 to 12 Hz. Beta: 12 to 30 Hz. Gamma: 30+ Hz.
US3951134A — Patent Excerpt
"A pair of radio frequency signals are transmitted to the brain of the subject being monitored. The signals are modulated with an ELF signal..."
"...the brain's electrical activity is detected and analyzed remotely. The operator may alter the brain wave pattern of the subject by adjusting the transmitted signal..."
"...the received signals are demodulated to recover the ELF component, which corresponds to the electroencephalographic activity of the subject."
"...a feedback circuit compares the received brain wave signal with a reference and generates a correction signal to modify the transmitted frequency..."
Filed: Aug 5, 1974 · Issued: Apr 20, 1976
Assignee: Dorne & Margolin Inc.
Inventor: Robert G. Malech
Source: US Patent and Trademark Office
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