Patent ID: 11937054
Assignee: SYNAPTICS INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 8:
9. The method of claim 6, wherein the constructing the directional covariance matrix aligned across all frequency band based on the constructed steering matrix and the computed covariance matrix is performed with reduced repetitions by:
dividing the multi-dimensional space into a number of segments, wherein the number of segments is less than a total number of dimensions of the multi-dimensional space;
mapping each TDOA location point from a mesh of TDOA location points to a closest segment; and
computing the directional covariance matrix using the number of segments and a mapping relationship between the mesh of TDOA location points and the number of segments instead of the mesh of TDOA location points built from all scans of azimuth and elevation angles.