Patent ID: 8331582

Claim:
A method executed by a processor for producing a combined adaptive directional signal, the method comprising: constructing the combined adaptive directional signal from a weighted sum of a first signal weight of a first sound signal having an omni-directional polar pattern and a second signal weight of a second sound signal having a bi-directional polar pattern wherein the first signal weight and the second signal weights are calculated to give the combined signal a constant gain in a predetermined direction and to minimize power of the combined signal, wherein the weights are calculated by the processor in a non-iterative manner, and wherein the signal weights are calculated by solving the following equation: a = ∑ y 2 - ∑ xy ∑ x 2 - 2 ⁢ ∑ xy + ∑ y 2 where a=weight for the first signal (1−a)=weight for the second signal x=first signal sample y=second signal sample.