Browse Prior Art Database

AUDIO DELAY AND SPEECH COLLISION RESOLUTION

IP.com Disclosure Number: IPCOM000007907D
Original Publication Date: 1996-Nov-01
Included in the Prior Art Database: 2002-May-03

Publishing Venue

Motorola

Related People

Authors:
Steven Charnota Tony Belkin

Abstract

The communication system (i.e., the iDEN Sys- tem) resolves the speech collision due to audio delay by muting (i.e., blocking) the speech in one direc- tion for a period of time approximately equal to the communication system round-trip audio delay. The muting period begins when a speaker identification period (during which exactly one user is speaking) is followed by a silent period (during which neither user is speaking) followed by speech from the user that will not be muted. Two methods are possible to determine which users' speech is muted: (1) mute the user that was the speaker during the speaker identification period or (2) mute the user that was the listener during the speaker identification period.