Title

Adaptive Analog Noise Cancellation System (ANC) U.S. Patent 5,440,642

Document Type

Patent

Publication Date

8-1995

Abstract

A digitally controlled analog cancellation system containing an analog noise cancellation circuit with a residual microphone (39) with a digital virtual earth controller (40) for optimizing variable parameters employed in the analog cancellation circuit.

Comments

U.S. Patent 5,440,642 issued August, 1995

Published Citation

Denenberg; Jeffrey N., Sabett; Randy V.. Adaptive Analog Noise Cancellation System (ANC) U.S. Patent 5,440,642 issued August, 1995