Audio current pick-up device

Details Audio current pick-up device Audio current pick-up device

1989-05-17

1991-04-23

Ng, Jin F.

Electrical audio signal processing systems and devices

Sound effects

Reverberators

381 74, 379443, 84725, H04R 2500, H04M 1100

Patent

active

050105752

ABSTRACT:
An audio current pick-up device for use with an electric wire 6 carrying an electric current containing audio information comprises a pair of substantially identical magnetic induction coil assemblies 26, 27 disposed in parallel to each other with an axial deviation and orthogonally to the wire, each coil means including a magnetic core in the form of rod 30, 38 and a pair of induction coils 32A, 32B, 39A, 39B wound in opposite directions on respective halves of its core rod. An output of either of the induction coils is phase-shifted by a preset amount and composited with an output of the other magnetic induction coil to form a sound pick-up signal from which a sound output signal is derived.

REFERENCES:
patent: 2048604 (1936-07-01), Finch
patent: 3472943 (1969-10-01), Kawabata et al.
patent: 3649737 (1972-03-01), Jespersen
patent: 3808560 (1974-04-01), Gassmann
patent: 4096780 (1978-06-01), Dawson
patent: 4348930 (1982-09-01), Chobanian et al.

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