Directional microphone system

Details Directional microphone system Directional microphone system

1992-05-28

1993-09-07

Ng, Jin F.

Electrical audio signal processing systems and devices

Directive circuits for microphones

381 27, 381 94, H04R 300

Patent

active

052436608

ABSTRACT:
A directional microphone system gain adjusts the sum of signals that are received from two microphones mounted less than an inch apart. The gain adjustment is generally proportional to the product of the two microphone signals. Analog multipliers are used both for multiplying the signals together and also to form a gate that gain adjusts the sum of the signals.

REFERENCES:
patent: 4622689 (1986-11-01), Hobrough
patent: 4685136 (1987-08-01), Latshaw
patent: 4703506 (1987-10-01), Sakamoto et al.
patent: 4712244 (1987-12-01), Zwicker et al.

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