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WO2000045575A1 - Dispositif et procede pour systemes de telecommunication - Google Patents

Dispositif et procede pour systemes de telecommunication Download PDF

Info

Publication number
WO2000045575A1
WO2000045575A1 PCT/SE2000/000174 SE0000174W WO0045575A1 WO 2000045575 A1 WO2000045575 A1 WO 2000045575A1 SE 0000174 W SE0000174 W SE 0000174W WO 0045575 A1 WO0045575 A1 WO 0045575A1
Authority
WO
WIPO (PCT)
Prior art keywords
voice
telecommunication system
code
signals
subscriber
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/SE2000/000174
Other languages
English (en)
Inventor
Erik Mikaelsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telia Co AB
Original Assignee
Telia AB
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 Telia AB filed Critical Telia AB
Publication of WO2000045575A1 publication Critical patent/WO2000045575A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • G10L15/00—Speech recognition
    • G10L15/26—Speech to text systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
    • H04M2201/40—Electronic components, circuits, software, systems or apparatus used in telephone systems using speech recognition

Definitions

  • the present invention relates to telecommunication systems and especially the possibility to control calls and services in the telecommunications network by the voice.
  • TECHNICAL PROBLEM In order to utilise voice control in the telecommunication systems of today, connection towards special databases is required. Said databases are located centrally in the telecommunications network. The voice through-connection to the database further entails that the voice control has to be used in the proceeded setup of the call. This results in that the subscriber, after selection of voice control, does not have the choice to utilise the normal setup functions of the telecommunication system, which can be a disadvantage in certain circumstances. Further, the existing technology results in that a plurality of setup paths are established without real existing need. These extra setup paths cause loads in the telecommunications networks without actually being needed. This is caused by the fact that rerouting of established (through-connected) connection cannot be performed in the telecommunications networks of today. Voice control of, for instance, Plus- services seems not to be possible to perform with the central solution of today. Terminals equipped with voice control are further usable only to a limited extent for control of services.
  • the present invention is intended to solve above described problems .
  • codes are transmitted from a subscriber terminal. These signals are passing via to the subscriber belonging line interface card, LIC, and Connection Junction, CL, to a Key Code Receiver, KR, which identifies the received signals and forward these in the telecommunications network, which attends to setup of calls/services.
  • the Key Code Receiver is only intended to be utilised for codes that follow certain given standards, such as multifrequency tone signalling and decadic impulse signalling.
  • voice control i.e. that one by means of the voice orders setup of calls and services.
  • special voice recognition equipments which are located centrally in the telecommunication system, are used.
  • the document does not at all deal with the problem of controlling services in the telecommunications network, or avoiding setup of voice through-connection in the telecommunications network at utilisation of voice control.
  • the American document US 522 0595 describes a device for voice recognition and/or DTMF-detection.
  • the voice recognition equipment is adapted in a receiving telecommunication equipment, for instance a telephone answering machine.
  • a connection is established between a calling party and the receiving party.
  • the intention is that the calling party shall be able to control the telephone answering machine by the own voice.
  • the invention primarily is to avoid the necessity of remembering different command strings in form of combinations of digits, but to make it possible to utilise different words of commands.
  • the in the document indicated solution consequently does not give any directions about how voice control is to be introduced in a telecommunication system for utilisation of in the telecommunication system existing services or functions, without utilising voice through- connection .
  • the present invention relates to a device at telecommunication system for voice control of services and/or setup of connections in the telecommunication system.
  • a voice/code identification equipment is adapted to receive voice and/or code signals, which signals are transmitted from a subscriber terminal.
  • the voice/code identification equipment is installed at the telecommunications exchange to which the subscriber equipment is connected.
  • the received signals are converted to signals which can be handled by the telecommunications network for setup of connections, respective utilisation of services in the telecommunications network.
  • a Voice and Code Receiver, VCR, appoints the identity of the subscriber terminal, and communicates said identity to the voice identification equipment, which decides which voice profile/profiles that is/are of current interest to be selected.
  • the voice profiles are stored in a database in, or in connection to, the telecommunication exchange, alternatively that the voice profile is stored in central databases to which the voice/code identification equipment has access.
  • the voice/code identification equipment further is adapted to transfer received information as signals that can be handled in the telecommunication system, at which the functionality in the telecommunications exchange is unchanged in relation to telecommunication exchanges that have not been equipped with voice/code identification equipment, at which analysis and routing functions in the telecommunication system are unchanged, and need for modifications and changes in the telecommunication system is eliminated, or at least minimised.
  • the invention further relates to a method for handling of voice signals and code signals at the same time.
  • Voice/code signals are received by a voice/code identification equipment at the telecommunication exchange, at which received signals are converted to signals utilised for control of services and/or setup of connections in the telecommunications network.
  • the voice/code identification equipment is integrated in a local telecommunications exchange to which one by the subscriber utilised subscriber equipment is connected.
  • the voice and code signals are allowed to be subject to mixed utilisation. This means that the subscriber uses the keyset of the telecommunication equipment, respective voice, for the control in such a way that either way of signalling can be utilised whenever the subscriber wishes during setup in progress.
  • the subscriber identity is identified and communicated to a Voice and Code Receiver, VCR.
  • the subscriber' s number further appoints which voice profile/profiles that normally exist, and selects these for analysis against the voice that the subscriber represents.
  • the identified voice profile/profiles then is/are utilised in the pursued analysis.
  • the information that is obtained from the analysed voice is further converted to signals that are utilised by the telecommunication system for setup of connections and/or services in the telecommunication system.
  • the voice profile belonging to a person is transferred to another subscriber's number in the case the subscriber changes subscriber ' s number. Alternatively the voice profile is transferred to another database when the subscriber's number is kept up, but the network number is kept up.
  • the voice profile for the person is stored in a central database and is transmitted to the telecommunication exchange, alternatively to a plurality of telecommunication exchanges, at request from respective telecommunications exchange, and that the voice profile is stored in one to the telecommunication exchange/telecommunication exchanges local database.
  • the subscriber has possibility to change and/or add information regarding person/persons who shall have possibility to use the voice identification equipment, and to add new voice profiles and to delete voice profiles that are of no interest any longer .
  • the present invention shows the advantage of that voice control signals are allowed to be utilised without setting up a connection to a specific function in the telecommunications network. This means that the load in the network is reduced, at which the telecommunication system is utilised in a more efficient way, which results in that the costs for the telecommunications operator can be reduced and be beneficial to the subscribers.
  • the invention further makes it possible that the subscribers are allowed to alternate between voice control and common keying in one and the same setup sequence. The advantages for customers and telecommunication operators consequently are apparent.
  • the largest use might be as completion of existing telecommunication exchanges (for instance AXE) and new nodes for telephony; but the function can also be applicable for IP-nodes, but then with other interfaces.
  • the function also can be combined with database for number portability, if this is a technical advantage. This means that the by the subscriber requested number is translated into the network number in question. This implies that the personal voice profile in the extension is made mobile in time to, for instance, the number portability in the telecommunications network, and becomes a part of the personal telephony.
  • FIG 1 shows the principle of the invention.
  • the present invention relates to a device and method at telecommunications network for handling of voice and code signals at the same time.
  • a Voice and Code Receiver, VCR identifies incoming signals and finds out whether these are voice signals or not.
  • VCR Voice and Code Receiver
  • tone code multifrequency tone
  • pulse selection loop-disconnect
  • a subscriber utilises his/her subscriber terminal and establishes contact with the telecommunication exchange in usual way.
  • setup is made to a Voice and Code Receiver, VCR, which replaces the normal Key Code Receiver, KR.
  • the Voice and Code Receiver, VCR receives information about the identity of the subscriber terminal, telephone number, the identity of which is forwarded to a voice/code identification equipment.
  • the identification of the subscriber's terminal is made in a customary way, which is well known to the professional.
  • the voic/code identification equipment searches in databases, arranged in, or in connection to, the telecommunication exchange, at which from the database is drawn voice profiles for persons who normally belong to said subscriber's numbers.
  • the databases are also allowed to be centrally located in the telecommunication system, alternatively dispersed on the for the purpose most suitable places.
  • a go ahead-signal is given to the Voice and Code Receiver, which gives OK-information that the system is ready to receive information.
  • the subscriber after that in a first scenario uses his/her voice for the setup.
  • the voice control in this case can be represented by digits which are pronounced, or words of command. In the latter case the "words of command” consist of phrases like "please, call Charlie”, “automatic call- back”, "forwarding of call” etc.
  • the system further allows that voice respective keying via the subscriber's keyset are mixed. This is possible due to the fact that the Voice and Code Receiver detects whether voice commands are coming in, or if the signals emanate from the keyset of the subscriber terminal.
  • voice control the system compares the different voice profiles that are in the database and utilises that one of the different voice profiles that best corresponds to the voice in question. The solution consequently results in that a limited choice of voices are utilised, which considerably simplifies the voice analysis.
  • the system finds that a voice does not correspond to the for the subscription known voices, a more general voice recognition is utilised.
  • the latter alternative results in that the voice analysis may take longer time than when known voices are utilised.
  • the system in this case may succeed, or fail, with the code identification.
  • the system fails at identifying the commands of the voice, the system requests that the coding be made via the keyset of the telecommunication equipment.
  • the user/subscriber in certain cases, may prefer, for certain codes, to utilise the keyset, and for other codes to utilise voice coding.
  • the Voice and Code Receiver in this case identifies whether voice coding or other coding shall be utilised.
  • the system is adapted to connect itself towards the Key Code Receiver, KR, in the cases where impulse signals are arriving.
  • KR Key Code Receiver
  • the Voice and Code Receiver is disconnected, at which the voice control is disconnected.
  • the Voice and Code Receiver it is of course also possible to allow the Voice and Code Receiver to receive impulse signals, but not multifrequency tone signals, at which the function will be the same as in the previously described, with the exception that, at multifrequency tone signalling, the voice control cannot be utilised. Which case that is preferred depends ' of course on to which extent impulse respective multifrequency tone code is utilised by the subscribers in respective telecommunicatons exchange, area, country etc.
  • the invention is a device and method for handling of the subscriber' s speech equally with multifrequency tone code/impulse code from the keyset of the terminal. In principle this means that the function is connected to the telecommunications exchange as just any code receiver.
  • the access form, analogue or digital, group switch access or IP-access, are not influenced.
  • the code receiver delivers received information as digits as before, so no influence on analysis or routing functions is required.
  • the function is located to the place of the code receiver, and can alternatively receive voice or multifrequency tone code signals, or impulse coding.
  • the voice identification is completed with possibility to recognise multifrequency tone code alternatively impulse code, and differentiate these from speech/voice.
  • the VCR-functions collects the calling subscriber's number and transfers this to the voice identification equipment, which means that the subscriber's voice profile is easily accessed. Establishing and changing the personal voice control profile can be made directly towards the function via call towards the telecommunication exchange.
  • the voice/code identification equipment is allowed to be located centrally, or distributed to a single node, or common to a number of closely located nodes.
  • Redundancy is achieved by allocating each node at least two VCR-units, which VCR-units handle a number of individuals, which reach the voice identification equipment via different paths. Further, the ordinary redundancy of the signal network (for instance CCITT No 7) is accessible.
  • the speech/voice is connected to the voice/code identification equipment via (for instance 64 kbit/s) ETC and standard PCM-connection.
  • the signalling between the in the station included VCR-function and the identification equipment is executed by for instance CCITT protocol No 7 based on an ETUP#E-telephony User Part (corresponding to the light weight INAP that is utilised for number portability, but consequently is connection oriented) .
  • KR-functions such as; Receive calls from different connection junction functions, select free channel towards the voice equipment, set up transport path from the subscriber connection to VCR, give acknowledgement when connection of code receiving equipment is connected, transmit received digit information to connected "junction", ready, and disconnection, error messages, administration of individuals and vias, traffic measuring functions, restart functions, handling of procedures etc. Handling of setups inclusive link supervision, signalling with simple GK (Common channel signalling) -protocol and interface towards MTP.
  • GK Common channel signalling

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Telephonic Communication Services (AREA)

Abstract

La présente invention concerne un dispositif et un procédé pour réseaux de télécommunication servant à manipuler en même temps des signaux vocaux et de code. Un récepteur de signaux vocaux et de code (VCR) identifie les signaux entrants. Lorsqu'un abonné A entame un appel via son terminal d'abonné, le VCR identifie son identité et son numéro qui lui permettent, grâce à une base de données, de déterminer quel profil vocal correspond à l'abonnement. Lorsqu'une commande vocale arrive, la voix est comparée aux profils sélectionnés et celui qui lui correspond le mieux est choisi. Les commandes vocales sont ensuite traduites en signaux, manipulés par le système de télécommunication. Cette solution permet de soumettre la voix et les signaux de code à une utilisation mixte de la part de l'abonné. En outre, aucun établissement de liaison vers des unités spécifiques traitant les commandes vocale n'est requise, de même que des chemins d'établissement de liaison dans le système de télécommunication.
PCT/SE2000/000174 1999-01-28 2000-01-28 Dispositif et procede pour systemes de telecommunication Ceased WO2000045575A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9900307-1 1999-01-28
SE9900307A SE522374C2 (sv) 1999-01-28 1999-01-28 Anordning och metod vid telesystem

Publications (1)

Publication Number Publication Date
WO2000045575A1 true WO2000045575A1 (fr) 2000-08-03

Family

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Family Applications (1)

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PCT/SE2000/000174 Ceased WO2000045575A1 (fr) 1999-01-28 2000-01-28 Dispositif et procede pour systemes de telecommunication

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SE (1) SE522374C2 (fr)
WO (1) WO2000045575A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7343288B2 (en) 2002-05-08 2008-03-11 Sap Ag Method and system for the processing and storing of voice information and corresponding timeline information
US7406413B2 (en) 2002-05-08 2008-07-29 Sap Aktiengesellschaft Method and system for the processing of voice data and for the recognition of a language

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992000586A1 (fr) * 1990-07-02 1992-01-09 Motorola, Inc. Selecteur d'un locuteur fondee sur un mot-cle
US5093855A (en) * 1988-09-02 1992-03-03 Siemens Aktiengesellschaft Method for speaker recognition in a telephone switching system
US5675632A (en) * 1994-08-11 1997-10-07 Hitachi, Ltd. Telephone exchange network using telephone exchanges with speech recognition
GB2317782A (en) * 1996-09-30 1998-04-01 Matsushita Electric Industrial Co Ltd Voice dialling server for branch exchange telephone systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5093855A (en) * 1988-09-02 1992-03-03 Siemens Aktiengesellschaft Method for speaker recognition in a telephone switching system
WO1992000586A1 (fr) * 1990-07-02 1992-01-09 Motorola, Inc. Selecteur d'un locuteur fondee sur un mot-cle
US5675632A (en) * 1994-08-11 1997-10-07 Hitachi, Ltd. Telephone exchange network using telephone exchanges with speech recognition
GB2317782A (en) * 1996-09-30 1998-04-01 Matsushita Electric Industrial Co Ltd Voice dialling server for branch exchange telephone systems

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LAURILA K. ET AL.: "A combination of discriminative and maximum likelihood techniques for noise robust speech recognition", PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, vol. 1, 1998, pages 85 - 88 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7343288B2 (en) 2002-05-08 2008-03-11 Sap Ag Method and system for the processing and storing of voice information and corresponding timeline information
US7406413B2 (en) 2002-05-08 2008-07-29 Sap Aktiengesellschaft Method and system for the processing of voice data and for the recognition of a language

Also Published As

Publication number Publication date
SE9900307D0 (sv) 1999-01-28
SE9900307L (sv) 2000-07-29
SE522374C2 (sv) 2004-02-03

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