Invention Grant
- Patent Title: Sound emitting and collecting apparatus, sound source separating unit and computer-readable medium having sound source separation program
- Patent Title (中): 声音发射和收集装置,声源分离装置和具有声源分离程序的计算机可读介质
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Application No.: US14271693Application Date: 2014-05-07
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Publication No.: US09510095B2Publication Date: 2016-11-29
- Inventor: Katsuyuki Takahashi
- Applicant: Oki Electric Industry Co., Ltd.
- Applicant Address: JP Tokyo
- Assignee: Oki Electric Industry Co., Ltd.
- Current Assignee: Oki Electric Industry Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Rabin & Berdo, P.C.
- Priority: JP2013-105479 20130517
- Main IPC: H04B15/00
- IPC: H04B15/00 ; H04R3/00 ; G10L21/0208 ; G10L21/0216

Abstract:
The present invention relates to a sound emitting and collecting apparatus including a sound collecting portion that captures surrounding sound using two microphones, and a sound emitting portion that emits sound from at least one speaker. The apparatus includes a sound source separating portion that extracts a target sound from a sound source in a predetermined direction, based on an input sound signal obtained by capturing surrounding sound using the two microphones, and an emission non-target sound removing portion that removes a non-target sound that is emitted from the speaker and captured by each of the microphones, based on sound source data for the sound emitting portion. The emission non-target sound removing portion is provided on a path that reaches the sound source separating portion. The emission non-target sound removing portion has a structure similar to an acoustic echo canceller, for example.
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