Patent ID: 11887575
Assignee: SPATIAL DIGITAL SYSTEMS, INC.
Field: Other consumer goods (Other fields)
Classification: CPC G | IPC G

Claim 18:
19. The method of claim 14, wherein providing the receiving acoustic beam forming module comprises:
providing P receiving acoustic beam forming submodules, each of the P receiving acoustic beam forming submodules being configured to receive the M noise signals and comprising M finite-impulse-response filters and an M-to-1 distribution network coupled to the M finite-impulse-response filters, each of the M finite-impulse-response filters being configured to receive a respective one of the M noise signals and perform weighting of amplitude and phase of frequency components of the respective one of the M noise signals, the M-to-1 distribution network being configured to transform M outputs of the M finite-impulse-response filters into a corresponding one of the P beam signals.