公开(公告)号：US20220270601A1

公开(公告)日：2022-08-25

申请号：US17626617

申请日：2020-07-30

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christopher Graham HINES ,  Rowan James KATEKAR ,  Glenn N. DICKINS ,  Richard J. CARTWRIGHT ,  Jeremiha Emile DOUGLAS ,  Mark R.P. THOMAS

IPC: G10L15/22 ,  G10L15/32

Abstract: A method may involve receiving output signals from each microphone of a plurality of microphones in the environment, each of the plurality of microphones residing in a microphone location of the environment, the output signals corresponding to an utterance of a person. The method may involve determining, based at least in part on the output signals, a zone within the environment that has at least a threshold probability of including the person's location and generating a plurality of spatially-varying attentiveness signals within the zone. Each attentiveness signal may be generated by a device located within the zone. Each attentiveness signal may indicate that a corresponding device is in an operating mode in which the corresponding device is awaiting a command and may indicate a relevance metric of the corresponding device.