IT1135165B - Rivelatore di segnali vocali - Google Patents

Rivelatore di segnali vocali

Info

Publication number: IT1135165B
Authority: IT; Italy
Prior art keywords: voice signal; signal detector; detector; voice; signal
Prior art date: 1980-01-25

Application number

IT19308/81A

Other languages

English (en)

Other versions

IT8119308A0 (it

Inventor

Carl Jerome May Jr

Original Assignee

Western Electric Co

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1980-01-25

Filing date

1981-01-23

Publication date

1986-08-20

1981-01-23 Application filed by Western Electric Co filed Critical Western Electric Co

1981-01-23 Publication of IT8119308A0 publication Critical patent/IT8119308A0/it

1986-08-20 Application granted granted Critical

1986-08-20 Publication of IT1135165B publication Critical patent/IT1135165B/it

Links

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
- H04J3/175—Speech activity or inactivity detectors
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other

Landscapes

Engineering & Computer Science (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Time-Division Multiplex Systems (AREA)
Telephone Function (AREA)

IT19308/81A 1980-01-25 1981-01-23 Rivelatore di segnali vocali IT1135165B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/115,185 US4277645A (en)	1980-01-25	1980-01-25	Multiple variable threshold speech detector

Publications (2)

Publication Number	Publication Date
IT8119308A0 IT8119308A0 (it)	1981-01-23
IT1135165B true IT1135165B (it)	1986-08-20

Family

ID=22359780

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT19308/81A IT1135165B (it)	1980-01-25	1981-01-23	Rivelatore di segnali vocali

Country Status (8)

Country	Link
US (1)	US4277645A (it)
JP (1)	JPS56142600A (it)
CA (1)	CA1158174A (it)
DE (1)	DE3101775A1 (it)
FR (2)	FR2482389B1 (it)
GB (2)	GB2068698B (it)
IT (1)	IT1135165B (it)
NL (1)	NL8100323A (it)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4357491A (en) *	1980-09-16	1982-11-02	Northern Telecom Limited	Method of and apparatus for detecting speech in a voice channel signal
US4376874A (en) *	1980-12-15	1983-03-15	Sperry Corporation	Real time speech compaction/relay with silence detection
US4370521A (en) *	1980-12-19	1983-01-25	Bell Telephone Laboratories, Incorporated	Endpoint detector
USRE32172E (en) *	1980-12-19	1986-06-03	At&T Bell Laboratories	Endpoint detector
DE3235915T1 (de) *	1981-03-05	1983-11-17	Western Electric Co., Inc., 10038 New York, N.Y.	Energiebanddiskriminator
US4410763A (en) *	1981-06-09	1983-10-18	Northern Telecom Limited	Speech detector
JPS59139099A (ja) *	1983-01-31	1984-08-09	株式会社東芝	音声区間検出装置
US4535445A (en) *	1983-06-16	1985-08-13	At&T Information Systems	Conferencing system adaptive signal conditioner
US4920534A (en)	1986-02-28	1990-04-24	At&T Bell Laboratories	System for controllably eliminating bits from packet information field based on indicator in header and amount of data in packet buffer
US4829578A (en) *	1986-10-02	1989-05-09	Dragon Systems, Inc.	Speech detection and recognition apparatus for use with background noise of varying levels
US5008941A (en) *	1989-03-31	1991-04-16	Kurzweil Applied Intelligence, Inc.	Method and apparatus for automatically updating estimates of undesirable components of the speech signal in a speech recognition system
US4979214A (en) *	1989-05-15	1990-12-18	Dialogic Corporation	Method and apparatus for identifying speech in telephone signals
DK406189A (da) *	1989-08-18	1991-02-19	Otwidan Aps Forenede Danske Ho	Fremgangsmaade og apparat til klassifikation af et blandet tale- og stoejsignal
GB2256351B (en) *	1991-05-25	1995-07-05	Motorola Inc	Enhancement of echo return loss
US5471527A (en)	1993-12-02	1995-11-28	Dsc Communications Corporation	Voice enhancement system and method
JP3483695B2 (ja) *	1996-03-14	2004-01-06	株式会社リコー	音声通信装置
US5884255A (en) *	1996-07-16	1999-03-16	Coherent Communications Systems Corp.	Speech detection system employing multiple determinants
FR2768544B1 (fr) *	1997-09-18	1999-11-19	Matra Communication	Procede de detection d'activite vocale
USD419160S (en) *	1998-05-14	2000-01-18	Northrop Grumman Corporation	Personal communications unit docking station
US6304559B1 (en)	1998-05-15	2001-10-16	Northrop Grumman Corporation	Wireless communications protocol
US6243573B1 (en)	1998-05-15	2001-06-05	Northrop Grumman Corporation	Personal communications system
USD421002S (en) *	1998-05-15	2000-02-22	Northrop Grumman Corporation	Personal communications unit handset
US6223062B1 (en)	1998-05-15	2001-04-24	Northrop Grumann Corporation	Communications interface adapter
US6041243A (en) *	1998-05-15	2000-03-21	Northrop Grumman Corporation	Personal communications unit
US6141426A (en) *	1998-05-15	2000-10-31	Northrop Grumman Corporation	Voice operated switch for use in high noise environments
US6169730B1 (en)	1998-05-15	2001-01-02	Northrop Grumman Corporation	Wireless communications protocol
DE19844702C2 (de) *	1998-09-29	2002-11-21	Siemens Ag	Verfahren, Empfangseinrichtung und Funkstation zur Erkennung eines Nutzdatenblocks mit fehlerhaften Nutzdatensymbolen
US6314396B1 (en) *	1998-11-06	2001-11-06	International Business Machines Corporation	Automatic gain control in a speech recognition system
US6381570B2 (en) *	1999-02-12	2002-04-30	Telogy Networks, Inc.	Adaptive two-threshold method for discriminating noise from speech in a communication signal
US6490556B2 (en) *	1999-05-28	2002-12-03	Intel Corporation	Audio classifier for half duplex communication
US7263074B2 (en) *	1999-12-09	2007-08-28	Broadcom Corporation	Voice activity detection based on far-end and near-end statistics
WO2001056015A1 (en) *	2000-01-27	2001-08-02	Koninklijke Philips Electronics N.V.	Speech detection device having two switch-off criterions
DE10007752A1 (de) *	2000-02-19	2001-08-23	Braun Gmbh	Verfahren zur Anpassung eines Entscheidungspegels bei der Umwandlung eines analogen Signals in ein digitales Signal und digitaler Empfänger
US20020103636A1 (en) *	2001-01-26	2002-08-01	Tucker Luke A.	Frequency-domain post-filtering voice-activity detector
US7146314B2 (en) *	2001-12-20	2006-12-05	Renesas Technology Corporation	Dynamic adjustment of noise separation in data handling, particularly voice activation
JP3812887B2 (ja) *	2001-12-21	2006-08-23	富士通株式会社	信号処理システムおよび方法
US7925510B2 (en) *	2004-04-28	2011-04-12	Nuance Communications, Inc.	Componentized voice server with selectable internal and external speech detectors
CN1299254C (zh) *	2004-05-31	2007-02-07	中兴通讯股份有限公司	一种回声抑制器中近端话音检测的实现方法
US20060241937A1 (en) *	2005-04-21	2006-10-26	Ma Changxue C	Method and apparatus for automatically discriminating information bearing audio segments and background noise audio segments
CN101859568B (zh) *	2009-04-10	2012-05-30	比亚迪股份有限公司	一种语音背景噪声的消除方法和装置
US8995823B2 (en)	2012-07-17	2015-03-31	HighlightCam, Inc.	Method and system for content relevance score determination
KR20140147587A (ko) *	2013-06-20	2014-12-30	한국전자통신연구원	Ｗｆｓｔ를 이용한 음성 끝점 검출 장치 및 방법

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4008375A (en) *	1975-08-21	1977-02-15	Communications Satellite Corporation (Comsat)	Digital voice switch for single or multiple channel applications
US4029912A (en) *	1975-12-10	1977-06-14	Bell Telephone Laboratories, Incorporated	Common control digital echo suppressor
US4028496A (en) *	1976-08-17	1977-06-07	Bell Telephone Laboratories, Incorporated	Digital speech detector
US4167653A (en) *	1977-04-15	1979-09-11	Nippon Electric Company, Ltd.	Adaptive speech signal detector

1980
- 1980-01-25 US US06/115,185 patent/US4277645A/en not_active Expired - Lifetime
1981
- 1981-01-13 CA CA000368374A patent/CA1158174A/en not_active Expired
- 1981-01-21 DE DE19813101775 patent/DE3101775A1/de not_active Withdrawn
- 1981-01-22 FR FR8101144A patent/FR2482389B1/fr not_active Expired
- 1981-01-23 JP JP889181A patent/JPS56142600A/ja active Granted
- 1981-01-23 NL NL8100323A patent/NL8100323A/nl not_active Application Discontinuation
- 1981-01-23 IT IT19308/81A patent/IT1135165B/it active
- 1981-01-26 GB GB8102335A patent/GB2068698B/en not_active Expired
- 1981-05-18 FR FR8109843A patent/FR2478909B1/fr not_active Expired
1983
- 1983-12-02 GB GB08332290A patent/GB2136253B/en not_active Expired

Also Published As

Publication number	Publication date
US4277645A (en)	1981-07-07
FR2482389A1 (fr)	1981-11-13
NL8100323A (nl)	1981-08-17
GB2068698B (en)	1984-10-24
FR2478909B1 (it)	1985-12-27
GB2136253B (en)	1985-05-09
JPH0247142B2 (it)	1990-10-18
IT8119308A0 (it)	1981-01-23
GB8332290D0 (en)	1984-01-11
FR2478909A1 (it)	1981-09-25
CA1158174A (en)	1983-12-06
FR2482389B1 (fr)	1985-12-27
GB2068698A (en)	1981-08-12
GB2136253A (en)	1984-09-12
JPS56142600A (en)	1981-11-06
DE3101775A1 (de)	1982-01-07

Legal Events

Date	Code	Title	Description
1999-10-27	TA	Fee payment date (situation as of event date), data collected since 19931001	Effective date: 19960125

Publication	Publication Date	Title
IT1135165B (it)	1986-08-20	Rivelatore di segnali vocali
SE8107354A0 (sv)	1982-06-10	Högtalartelefonanläggning
IT1139675B (it)	1986-09-24	Trasduttore elettrocustico
IT1194032B (it)	1988-08-31	Tromba di altoparlante
AT383920B (de)	1987-09-10	Signalformer
TR22206A (tr)	1986-09-25	Zirh delici mermi(penetratoer)
BR8100994A (pt)	1981-08-25	Transdutor
IT1129862B (it)	1986-06-11	Trasduttore ottico
DK163179C (da)	1992-06-22	Alfa-hydroxyketonacetaler
ES502626A0 (es)	1982-04-01	Perfeccionamientos en hidrociclones
IT1135489B (it)	1986-08-20	Impianto amplificatore di due segnali
DK403781A (da)	1982-03-13	Signalbearbejdningsapparat
FI812459L (fi)	1982-02-15	Detektor foer televisionsspoeksignaler
DK250482A (da)	1982-06-03	Tvangstyret lydfrembringer
AT383235B (de)	1987-06-10	Verstaerker
IT1135576B (it)	1986-08-27	Complesso amplificatore
IT1195043B (it)	1988-09-28	Complesso amplificatore
FI812461L (fi)	1982-02-15	Detektor foer televisionsspoeksignaler
DK364881A (da)	1982-04-18	Detektoraggregat
BR6100257U (pt)	1981-09-22	Para-choques
JPS5710196A (en)	1982-01-19	Voice signal detector
IT1139652B (it)	1986-09-24	Transduttore magnetoresistnete
DK364681A (da)	1982-04-18	Detektoraggregat
AT383451B (de)	1987-07-10	Signaldetektorschaltung
AT379882B (de)	1986-03-10	Signalleuchte