Methods and apparatus for adaptive beamforming

Details Methods and apparatus for adaptive beamforming Methods and apparatus for adaptive beamforming

1994-04-21

1996-12-03

Kuntz, Curtis

Electrical audio signal processing systems and devices

Directive circuits for microphones

367125, 367126, H04R 300

Patent

active

055816207

ABSTRACT:
Methods and systems for beamforming are disclosed that include a signal processor that can dynamically determine the relative time delays between a plurality of frequency-dependent signals. The signal processor can adaptively generate a beam signal by aligning the plural frequency-dependent signals according to the relative time delays between the signals. The signal processor can store one frequency-dependent signal as a reference signal and can align the remaining frequency-dependent signals relative to this reference signal. One advantage of the signal processor is that it can align the plural frequency-dependent signals generated by an array of microphones that can be arranged in a linear, two dimensional or three dimensional array and located in a room environment.

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