US Patent No: 7,155,385

Number of patents in Portfolio can not be more than 2000

Automatic gain control for adjusting gain during non-speech portions

ALSO PUBLISHED AS: 20030216908

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Abstract

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An estimate is made of the power of a speech portion of a speech signal that includes speech portions separated by non-speech portions, the power for the speech portion being estimated based on a power envelope that spans the speech portion. The gain of an automatic gain control is not adjusted during the speech portions.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COMERICA BANKDETROIT, MI194
DIALOGIC CORPORATIONMONTREAL QUEBEC98

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berestesky, Alexander Ashland, MA 4 54
Duehren, David E Needham, MA 1 19

Cited Art Landscape

Patent Info (Count) # Cites Year
 
MOTOROLA, INC. (3)
5,146,504 Speech selective automatic gain control 31 1990
5,666,384 Method and apparatus for mitigating noise in an output signal of an audio automatic gain control circuit 5 1995
6,370,500 Method and apparatus for non-speech activity reduction of a low bit rate digital voice message 10 1999
 
NUANCE COMMUNICATIONS, INC. (2)
6,314,396 Automatic gain control in a speech recognition system 29 1998
6,651,040 Method for dynamic adjustment of audio input gain in a speech system 7 2000
 
ALCATEL USA, CORP. (1)
5,592,545 Voice enhancement system and method 21 1995
 
AT&T CORP. (1)
6,604,071 Speech enhancement with gain limitations based on speech activity 10 2000
 
AUDIOLOGICAL ENGINEERING CORPORATION (1)
5,035,242 Method and apparatus for sound responsive tactile stimulation of deaf individuals 246 1990
 
CHUNGHWA TELECOM CO., LTD. (1)
6,937,978 Suppression system of background noise of speech signals and the method thereof 18 2001
 
COCHLEAR LIMITED (1)
2004/0172,242 Variable sensitivity control for a cochlear implant 7 2004
 
DIALOGIC CORPORATION (1)
6,321,194 Voice detection in audio signals 30 1999
 
GLENAYRE ELECTRONICS, INC. (1)
6,169,971 Method to suppress noise in digital voice processing 11 1997
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
6,351,529 Method and system for automatic gain control with adaptive table lookup 8 1998
 
IMPERIAL BANK (1)
5,267,322 Digital automatic gain control with lookahead, adaptive noise floor sensing, and decay boost initialization 25 1991
 
INTERNATIONAL COMPUTER SCIENCE INSTITUTE (1)
6,308,155 Feature extraction for automatic speech recognition 19 1999
 
InterVoice Limited Partnership (1)
5,854,845 Method and circuit for voice automatic gain control 13 1996
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
5,583,969 Speech signal processing apparatus for amplifying an input signal based upon consonant features of the signal 19 1993
 
MICROSEMI SEMICONDUCTOR (U.S.) INC. (1)
5,838,269 System and method for performing automatic gain control with gain scheduling and adjustment at zero crossings for reducing distortion 13 1996
 
NOKIA MOBILE PHONES LTD. (1)
6,363,343 Automatic gain control 6 1998
 
PANASONIC COMMUNICATIONS CO., LTD. (1)
6,266,632 Speech decoding apparatus and speech decoding method using energy of excitation parameter 17 1999
 
POLYCOM, INC. (1)
6,351,731 Adaptive filter featuring spectral gain smoothing and variable noise multiplier for noise reduction, and method therefor 56 1999
 
SMITH & NEPHEW RICHARDS INC. (1)
5,165,017 Automatic gain control circuit in a feed forward configuration 28 1990
 
Speech Systems, Inc. (1)
4,777,649 Acoustic feedback control of microphone positioning and speaking volume 12 1985
 
TRONTECH LICENSING INCORPORATED (1)
5,680,075 Digital automatic gain control 13 1995
 
Westinghouse Electric Corp. (1)
4,747,143 Speech enhancement system having dynamic gain control 34 1985
 
WIAV SOLUTIONS LLC (1)
6,862,567 Noise suppression in the frequency domain by adjusting gain according to voicing parameters 29 2000

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
DOLBY LABORATORIES LICENSING CORPORATION (14)
8,437,482 Method, apparatus and computer program for calculating and adjusting the perceived loudness of an audio signal 0 2004
8,090,120 Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal 11 2005
8,019,095 Loudness modification of multichannel audio signals 4 2007
8,504,181 Audio signal loudness measurement and modification in the MDCT domain 1 2007
8,144,881 Audio gain control using specific-loudness-based auditory event detection 6 2007
8,521,314 Hierarchical control path with constraints for audio dynamics processing 0 2007
8,396,574 Audio processing using auditory scene analysis and spectral skewness 0 2008
8,199,933 Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal 4 2008
8,032,385 Method for correcting metadata affecting the playback loudness of audio information 3 2009
RE43985 Controlling loudness of speech in signals that contain speech and other types of audio material 0 2010
8,600,074 Loudness modification of multichannel audio signals 0 2011
8,731,215 Loudness modification of multichannel audio signals 0 2011
8,488,809 Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal 0 2011
8,428,270 Audio gain control using specific-loudness-based auditory event detection 0 2012
 
APPLE INC. (1)
8,447,595 Echo-related decisions on automatic gain control of uplink speech signal in a communications device 1 2010
 
DOLBY LABORATORIES LICENSIGN CORPORATION (1)
7,454,331 Controlling loudness of speech in signals that contain speech and other types of audio material 26 2002
 
HUAWEI TECHNOLOGIES CO., LTD. (1)
7,693,054 Method for implementing resources reservation in access configuration mode in next generation network 1 2006
 
NOKIA CORPORATION (1)
8,577,675 Method and device for speech enhancement in the presence of background noise 0 2004
 
PANASONIC CORPORATION (1)
7,630,396 Multichannel signal coding equipment and multichannel signal decoding equipment 5 2005

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 26, 2014
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 26, 2018
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00