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Title: Speech masking and cancelling and voice obscuration

Abstract

A non-acoustic sensor is used to measure a user's speech and then broadcasts an obscuring acoustic signal diminishing the user's vocal acoustic output intensity and/or distorting the voice sounds making them unintelligible to persons nearby. The non-acoustic sensor is positioned proximate or contacting a user's neck or head skin tissue for sensing speech production information.

Inventors:
Issue Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1093236
Patent Number(s):
8532987
Application Number:
13/018,653
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Classifications (CPCs):
G - PHYSICS G10 - MUSICAL INSTRUMENTS G10L - SPEECH ANALYSIS OR SYNTHESIS
H - ELECTRICITY H04 - ELECTRIC COMMUNICATION TECHNIQUE H04K - SECRET COMMUNICATION
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Holzrichter, John F. Speech masking and cancelling and voice obscuration. United States: N. p., 2013. Web.
Holzrichter, John F. Speech masking and cancelling and voice obscuration. United States.
Holzrichter, John F. Tue . "Speech masking and cancelling and voice obscuration". United States. https://www.osti.gov/servlets/purl/1093236.
@article{osti_1093236,
title = {Speech masking and cancelling and voice obscuration},
author = {Holzrichter, John F.},
abstractNote = {A non-acoustic sensor is used to measure a user's speech and then broadcasts an obscuring acoustic signal diminishing the user's vocal acoustic output intensity and/or distorting the voice sounds making them unintelligible to persons nearby. The non-acoustic sensor is positioned proximate or contacting a user's neck or head skin tissue for sensing speech production information.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 10 00:00:00 EDT 2013},
month = {Tue Sep 10 00:00:00 EDT 2013}
}

Works referenced in this record:

Hands free noise canceling headset
patent, December 1997


Method and system for masking speech
patent, November 2006


Sound Masking Method and System
patent, April 1975


Partition system for open plan office spaces
patent, October 1984


Masking sound generator
patent, October 1977