US Patent No: 5,216,702

Number of patents in Portfolio can not be more than 2000

Nonintrusive speech level and dynamic noise measurements

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Importance

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Abstract

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A digital signal processor is provided with the facility to measure accurately, and nonintrusively, the levels of noise and/or speech signals appearing on an in-service network connection.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
AMERICAN TELEPHONE AND TELEGRAPH COMPANYMURRAY HILL, NJ1081
AT&T BELL LABORATORIESMURRAY HILL, NJ912
LUCENT TECHNOLOGIES INC.MURRAY HILL, NJ6910

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ramsden, David B Wall, NJ 3 22

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Compagnie Industrielle des Telecommunications Cit-Alcatel (1)
* 4,552,996 Method and apparatus for evaluating noise level on a telephone channel 23 1983
 
NORTEL NETWORKS LIMITED (1)
* 4,363,938 Method of and apparatus for echo detection in voice channel signals 11 1980
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SECURUS TECHNOLOGIES, INC. (8)
7,899,167 Centralized call processing 23 2003
8,000,269 Call processing with voice over internet protocol transmission 4 2004
7,916,845 Unauthorized call activity detection and prevention systems and methods for a Voice over Internet Protocol environment 1 2006
7,529,357 Inmate management and call processing systems and methods 40 2007
8,340,260 Inmate management and call processing systems and methods 6 2009
* 2011/0110,367 Unauthorized Call Activity Detection And Prevention Systems And Methods For A Voice Over Internet Protocol Environment 3 2011
8,577,003 Centralized call processing 6 2011
* 2011/0110,276 CENTRALIZED CALL PROCESSING 3 2011
 
INTEL CORPORATION (1)
* 6,128,370 Multiple tone detection using out-of-band background detector 15 1997
 
SCIENCE DYNAMICS CORPORATION (2)
* 5,768,355 Three-way call detection system 46 1996
7,505,406 Public telephone control with voice over internet protocol transmission 19 2001
 
Ultratec, Inc. (10)
* 7,164,753 Real-time transcription correction system 33 2003
* 2003/0212,547 Real-time transcription correction system 1 2003
7,660,398 Captioned telephone service 22 2005
* 2005/0226,394 Captioned telephone service 12 2005
7,881,441 Device independent text captioned telephone service 21 2006
* 2007/0036,282 Device independent text captioned telephone service 19 2006
9,131,045 System for text assisted telephony 0 2012
8,917,821 Device independent text captioned telephone service 11 2013
8,917,822 System for text assisted telephony 11 2014
8,908,838 System for text assisted telephony 11 2014
 
NORTEL NETWORKS LIMITED (1)
* 5,940,471 Method and apparatus for obtaining feedback regarding network services 104 1996
 
AT&T CORP. (2)
* 6,002,762 Method and apparatus for making nonintrusive noise and speech level measurements on voice calls 5 1996
* 5,793,864 Nonintrusive measurement of echo power and echo path delay present on a transmission path 7 1996
* Cited By Examiner