Karl Henry Grever

US Patent:

62087401, Mar 27, 2001

Filed:

Jul 8, 1997

Appl. No.:

8/889745

Inventors:

Karl Grever - Little Rock AR

International Classification:

H04B5/00

US Classification:

381 79

Abstract:

A stereophonic magnetic induction sound system is disclosed which has an audio source, two ear pieces, each having an inductive pick-up coil, and a magnetic induction transmitter connected to the audio source and capable of transmitting different signals to the pick-up coils in the two ear pieces. The transmitter may have two or more antennas, a first conductor for transmitting one signal to one of the antennas, a second conductor for transmitting a different signal to the other antenna, and grounds connected to each antenna. The antennas are comprised of a core with a wires coiled about the core and are shaped and positioned on a user's neck to, at least partially, selectively transmit their respect signals toward a particular, near-by pick-up coil. A connector or stereophonic jack is used to connect the transmitter to an audio source, and a supporting member secures the antennas around a user's neck and restricts movement of the antennas relative to the neck.