Patent No. 4877027 Hearing system
Patent No. 4877027 Hearing system (Brunkan, Oct 31, 1989)
Abstract
Sound is induced in the head of a person by radiating the head with microwaves in the range of 100 megahertz to 10,000 megahertz that are modulated with a particular waveform. The waveform consists of frequency modulated bursts. Each burst is made up of ten to twenty uniformly spaced pulses grouped tightly together. The burst width is between 500 nanoseconds and 100 microseconds. The pulse width is in the range of 10 nanoseconds to 1 microsecond. The bursts are frequency modulated by the audio input to create the sensation of hearing in the person whose head is irradiated.
Notes:
The apparatus of FIG. 1 for carrying
out my invention may include as a microwave generator Model PH40K of Applied
Microwave Laboratories and described as Signal Source. The cable 21 connecting
the microwave generator 19 and the antenna is RG8 coaxial cable by Belden Industries.
The antenna 22 may be a standard parabolic antenna. The FM generator 12 has
to be specially built to include the spacing runction which is obtained by a
frequency generator built into a srandard FM generator.
I have described my invention witn respect
to a presently preferred embodiment as required by the patent statutes. It will
be apparent to those skilled in the technology that many variations, modification
and additions can be made. All such variations, modifications and additions
that come within the true spirit and scope of the invention are included in
the claims.
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