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Patent Searching and Data


Title:
HOWL DETECTION IN CONFERENCE SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2019/067718
Kind Code:
A3
Abstract:
The disclosed teleconferencing methods involve detecting a howl state during a teleconference which involves two or more teleconference client locations and a teleconference server. The teleconference server is configured for providing full-duplex audio connectivity between the teleconference client locations. The howl state is a state of acoustic feedback involving two or more teleconference devices in a teleconference client location. Detecting the howl state involves an analysis of both spectral and temporal characteristics of teleconference audio data. The disclosed teleconferencing methods involve determining which client location is causing the howl state and involve mitigating the howl state or sending a howl state detection message.

Inventors:
LI, Kai (Inc.1275 Market Stree, San Francisco California, 94103, US)
GUNAWAN, David (Inc.1275 Market Stree, San Francisco California, 94103, US)
DENG, Feng (No. 1 East 3rd Ring Middle Road, ChaoYang DistrictBeijing, Beijing 0, 100020, CN)
FANG, Qianqian (Inc.1275 Market Stree, San Francisco California, 94103, US)
Application Number:
US2018/053119
Publication Date:
May 09, 2019
Filing Date:
September 27, 2018
Export Citation:
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Assignee:
DOLBY LABORATORIES LICENSING CORPORATION (1275 Market Street, San Francisco, California, 94103, US)
International Classes:
H04R3/02; G10L25/48; H04M3/56; H04M9/08
Domestic Patent References:
WO2016130459A12016-08-18
Foreign References:
US20100322387A12010-12-23
Attorney, Agent or Firm:
MA, Xin et al. (DOLBY LABORATORIES, INC.Intellectual Property Group,1275 Market Stree, San Francisco California, 94103, US)
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