Patent Document ID: 20140314251
Application ID: 14318733
Patent Status: 0

Claim One:
1. A method for monitoring an acoustic target in a target location in a space monitored by N microphones, comprising: providing a number D equal to or greater than 2 and smaller than N to a processor; providing a number of L locations in the space, wherein each location in the L locations is treated by a processor as an interference source; determining by the processor a set of D microphones from the set of N microphones, including the steps: minimizing a maximum interference gain relative to the target location and the L interference locations over at least 2 different frequencies expressed in microphone weights for all N microphones; and performing a convex optimization of the microphone weights for all N microphones over an l 1 penalty to determine a set of D microphone weights not equal to zero for each of the at least 2 frequencies.