ZA762946B - Systems and devices for detecting the presence and/or absence of useful signal(speech)on telephone lines(voice channel) - Google Patents

Systems and devices for detecting the presence and/or absence of useful signal(speech)on telephone lines(voice channel)

Info

Publication number
ZA762946B
ZA762946B ZA762946A ZA762946A ZA762946B ZA 762946 B ZA762946 B ZA 762946B ZA 762946 A ZA762946 A ZA 762946A ZA 762946 A ZA762946 A ZA 762946A ZA 762946 B ZA762946 B ZA 762946B
Authority
ZA
South Africa
Prior art keywords
speech
absence
detecting
systems
devices
Prior art date
Application number
ZA762946A
Other languages
English (en)
Inventor
F Vagliani
A Molinari
Original Assignee
Telettra Lab Di Telefonia Elec
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.)
Filing date
Publication date
Application filed by Telettra Lab Di Telefonia Elec filed Critical Telettra Lab Di Telefonia Elec
Publication of ZA762946B publication Critical patent/ZA762946B/xx

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computational Linguistics (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transceivers (AREA)
ZA762946A 1975-07-03 1976-05-18 Systems and devices for detecting the presence and/or absence of useful signal(speech)on telephone lines(voice channel) ZA762946B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25053/75A IT1044353B (it) 1975-07-03 1975-07-03 Metodo e dispositivo per il rico noscimento della presenza e.o assenza di segnale utile parola parlato su linee foniche canali fonici

Publications (1)

Publication Number Publication Date
ZA762946B true ZA762946B (en) 1977-04-27

Family

ID=11215547

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA762946A ZA762946B (en) 1975-07-03 1976-05-18 Systems and devices for detecting the presence and/or absence of useful signal(speech)on telephone lines(voice channel)

Country Status (13)

Country Link
US (1) US4057690A (pm)
JP (1) JPS5231606A (pm)
BE (1) BE842136A (pm)
BR (1) BR7603465A (pm)
DE (1) DE2623025A1 (pm)
ES (1) ES449486A1 (pm)
FR (1) FR2316814A1 (pm)
GB (1) GB1491662A (pm)
IT (1) IT1044353B (pm)
LU (1) LU75069A1 (pm)
NL (1) NL7607412A (pm)
NO (1) NO146521C (pm)
ZA (1) ZA762946B (pm)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH635695A5 (de) 1978-08-31 1983-04-15 Landis & Gyr Ag Detektor zur feststellung der anwesenheit mindestens eines elektrischen signals mit einer vorbestimmten charakteristik.
US4351216A (en) * 1979-08-22 1982-09-28 Hamm Russell O Electronic pitch detection for musical instruments
US4314100A (en) * 1980-01-24 1982-02-02 Storage Technology Corporation Data detection circuit for a TASI system
DE3017623C2 (de) * 1980-05-08 1983-12-01 Vierling, Oskar, Prof. Dr.Phil.Habil., 8553 Ebermannstadt Sensor zur Verkehrserfassung von aus Analogsignalen bestehenden Nachrichtenströmen auf Fernmeldeleitungen
DE3023375C1 (pm) * 1980-06-23 1987-12-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US4357491A (en) * 1980-09-16 1982-11-02 Northern Telecom Limited Method of and apparatus for detecting speech in a voice channel signal
EP0054365B1 (en) * 1980-12-09 1984-09-12 Secretary of State for Industry in Her Britannic Majesty's Gov. of the United Kingdom of Great Britain and Northern Ireland Speech recognition systems
USRE32172E (en) * 1980-12-19 1986-06-03 At&T Bell Laboratories Endpoint detector
US4370521A (en) * 1980-12-19 1983-01-25 Bell Telephone Laboratories, Incorporated Endpoint detector
FR2502374B1 (fr) * 1981-03-18 1986-04-18 Trt Telecom Radio Electr Dispositif de discrimination de la parole
US4531228A (en) * 1981-10-20 1985-07-23 Nissan Motor Company, Limited Speech recognition system for an automotive vehicle
JPS5916453B2 (ja) * 1981-12-03 1984-04-16 株式会社リコー 光デ−タ通信システム
DE3220905C1 (de) * 1982-06-03 1983-12-29 Vierling, Oskar, Prof. Dr.Phil.Habil., 8553 Ebermannstadt Sensor zur Verkehrserfassung von aus Analogsignalen bestehenden Nachrichtenströmen auf Fernmeldeleitungen
DE3243231A1 (de) * 1982-11-23 1984-05-24 Philips Kommunikations Industrie AG, 8500 Nürnberg Verfahren zur erkennung von sprachpausen
DE3243232A1 (de) * 1982-11-23 1984-05-24 Philips Kommunikations Industrie AG, 8500 Nürnberg Verfahren zur erkennung von sprachpausen
US4627091A (en) * 1983-04-01 1986-12-02 Rca Corporation Low-energy-content voice detection apparatus
DE3323534C1 (de) * 1983-06-30 1985-02-14 Vierling, Oskar, Prof. Dr.Phil.Habil., 8553 Ebermannstadt Sensor zur Verkehrserfassung von aus Analogsignalen bestehenden Nachrichtenströmen auf Fernmeldeleitungen
US4764966A (en) * 1985-10-11 1988-08-16 International Business Machines Corporation Method and apparatus for voice detection having adaptive sensitivity
US4935963A (en) * 1986-01-24 1990-06-19 Racal Data Communications Inc. Method and apparatus for processing speech signals
FR2629964B1 (fr) * 1988-04-12 1991-03-08 Telediffusion Fse Procede et dispositif de discrimination de signal
US5065395A (en) * 1990-04-09 1991-11-12 Dsc Communications Corporation Rudimentary digital speech interpolation apparatus and method
US5305422A (en) * 1992-02-28 1994-04-19 Panasonic Technologies, Inc. Method for determining boundaries of isolated words within a speech signal
US5675639A (en) * 1994-10-12 1997-10-07 Intervoice Limited Partnership Voice/noise discriminator
US5765130A (en) * 1996-05-21 1998-06-09 Applied Language Technologies, Inc. Method and apparatus for facilitating speech barge-in in connection with voice recognition systems
US6671667B1 (en) 2000-03-28 2003-12-30 Tellabs Operations, Inc. Speech presence measurement detection techniques
EP2107553B1 (en) * 2008-03-31 2011-05-18 Harman Becker Automotive Systems GmbH Method for determining barge-in
EP2148325B1 (en) * 2008-07-22 2014-10-01 Nuance Communications, Inc. Method for determining the presence of a wanted signal component
US9537460B2 (en) * 2011-07-22 2017-01-03 Continental Automotive Systems, Inc. Apparatus and method for automatic gain control
WO2013187932A1 (en) 2012-06-10 2013-12-19 Nuance Communications, Inc. Noise dependent signal processing for in-car communication systems with multiple acoustic zones
DE112012006876B4 (de) 2012-09-04 2021-06-10 Cerence Operating Company Verfahren und Sprachsignal-Verarbeitungssystem zur formantabhängigen Sprachsignalverstärkung
WO2014070139A2 (en) 2012-10-30 2014-05-08 Nuance Communications, Inc. Speech enhancement
CN110580913B (zh) * 2019-09-26 2022-03-04 嘉楠明芯(北京)科技有限公司 语音激活检测方法、装置及计算机可读存储介质
CN112382312B (zh) * 2020-09-23 2024-12-10 福建信通慧安科技有限公司 目标探测器及目标探测方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046347A (en) * 1959-02-25 1962-07-24 Bell Telephone Labor Inc Transmission control in a two way communication system
US3712959A (en) * 1969-07-14 1973-01-23 Communications Satellite Corp Method and apparatus for detecting speech signals in the presence of noise
US3878337A (en) * 1970-03-13 1975-04-15 Communications Satellite Corp Device for speech detection independent of amplitude
DE2334459C3 (de) * 1973-07-06 1982-03-25 Siemens AG, 1000 Berlin und 8000 München Unterscheidung zwischen stimmhaften und stimmlosen Lauten bei der Sprachsignalauswertung

Also Published As

Publication number Publication date
FR2316814B1 (pm) 1982-11-05
NL7607412A (nl) 1977-01-05
BR7603465A (pt) 1977-07-05
NO146521B (no) 1982-07-05
GB1491662A (en) 1977-11-09
US4057690A (en) 1977-11-08
LU75069A1 (pm) 1977-01-21
ES449486A1 (es) 1977-08-01
IT1044353B (it) 1980-03-20
BE842136A (fr) 1976-09-16
NO146521C (no) 1982-10-13
NO762317L (pm) 1977-01-04
DE2623025A1 (de) 1977-01-27
JPS5231606A (en) 1977-03-10
FR2316814A1 (fr) 1977-01-28

Similar Documents

Publication Publication Date Title
ZA762946B (en) Systems and devices for detecting the presence and/or absence of useful signal(speech)on telephone lines(voice channel)
JPS5272504A (en) Device for recognizing word audio
JPS5250105A (en) Conference telephone system
GB1540414A (en) Circuit arrangements for detecting the state of subscriber lines in speech and data networks
GB1548618A (en) Transmitting and receiving apparatus for pcm signals
GB1537762A (en) System for the transmission of speech signals
NO820556L (no) Digital anordning for aa skille digitaliserte taledatasignaler
JPS5247604A (en) Telephone line amplifier
JPS51126702A (en) Telephone set and system
AU502940B2 (en) Signal input devices and systems
JPS5611605A (en) Voice signal reproduction device
AU500321B2 (en) Telephone microphone
AU503508B2 (en) Signal. coupling and branching device
JPS5343403A (en) System for analysing and synthesizing voice
GB1549006A (en) Telephone systems
SE7508032L (sv) Kopplingsanordning for knappstyrda telefon-, duplextelefon- eller hogtalaranleggningar
SU643960A1 (ru) Устройство дл распознавани речевого сигнала
AU495301B2 (en) Method for detecting the presence of speech band activity ina telephone connection anda circuit for carrying out such method
JPS5365005A (en) Talking time inspecting device for telephone set
JPS5219013A (en) Automatic telephone system having protecting means against unintentional stop of register signal
AU8038975A (en) Method for detecting the presence of speech band activity ina telephone connection anda circuit for carrying out such method
JPS5224016A (en) Telephone speech recorder
JPS51139201A (en) Start circuit for automatic telephone call anser system
JPS52115287A (en) Apparatus for comparing and detecting sound
JPS5263006A (en) Device for automatically responding and recording telephone