FI101439B1 - Transkoder med spärrning av tandemkodning - Google Patents

Transkoder med spärrning av tandemkodning

Info

Publication number
FI101439B1
FI101439B1 FI951807A FI951807A FI101439B1 FI 101439 B1 FI101439 B1 FI 101439B1 FI 951807 A FI951807 A FI 951807A FI 951807 A FI951807 A FI 951807A FI 101439 B1 FI101439 B1 FI 101439B1
Authority
FI
Finland
Prior art keywords
speech
pcm
transcoder
mobile
speech signal
Prior art date
Application number
FI951807A
Other languages
English (en)
Finnish (fi)
Other versions
FI951807A0 (fi
FI951807A (sv
FI101439B (sv
Inventor
Matti Lehtimaeki
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of FI951807A0 publication Critical patent/FI951807A0/fi
Priority to FI951807A priority Critical patent/FI101439B/sv
Priority to CN96193866A priority patent/CN1109459C/zh
Priority to EP05100949.6A priority patent/EP1533790B1/en
Priority to AT96910043T priority patent/ATE289738T1/de
Priority to ES05100949.6T priority patent/ES2491890T3/es
Priority to ES96910043T priority patent/ES2237765T3/es
Priority to US08/930,988 priority patent/US5991716A/en
Priority to PCT/FI1996/000192 priority patent/WO1996032823A1/en
Priority to AU53363/96A priority patent/AU705619B2/en
Priority to JP8530745A priority patent/JPH11503582A/ja
Priority to EP96910043A priority patent/EP0820685B1/en
Priority to CA002217693A priority patent/CA2217693C/en
Priority to DE69634381T priority patent/DE69634381T2/de
Publication of FI951807A publication Critical patent/FI951807A/sv
Priority to NO19974705A priority patent/NO321398B1/no
Application granted granted Critical
Publication of FI101439B1 publication Critical patent/FI101439B1/sv
Publication of FI101439B publication Critical patent/FI101439B/sv

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16Vocoder architecture
    • G10L19/173Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16Vocoder architecture
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18Service support devices; Network management devices
    • H04W88/181Transcoding devices; Rate adaptation devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Dc Digital Transmission (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Camera Data Copying Or Recording (AREA)
FI951807A 1995-04-13 1995-04-13 Transkoder med spärrning av tandemkodning FI101439B (sv)

Priority Applications (14)

Application Number Priority Date Filing Date Title
FI951807A FI101439B (sv) 1995-04-13 1995-04-13 Transkoder med spärrning av tandemkodning
AU53363/96A AU705619B2 (en) 1995-04-13 1996-04-11 Transcoder with prevention of tandem coding of speech
EP96910043A EP0820685B1 (en) 1995-04-13 1996-04-11 Transcoder with prevention of tandem coding of speech
AT96910043T ATE289738T1 (de) 1995-04-13 1996-04-11 Transkodierer mit verhütung von kaskadenkodierung von sprachsignalen
ES05100949.6T ES2491890T3 (es) 1995-04-13 1996-04-11 Transcodificador que evita la codificación en cascada de la voz
ES96910043T ES2237765T3 (es) 1995-04-13 1996-04-11 Transcodificador que evita la codificacion en cascada de la voz.
US08/930,988 US5991716A (en) 1995-04-13 1996-04-11 Transcoder with prevention of tandem coding of speech
PCT/FI1996/000192 WO1996032823A1 (en) 1995-04-13 1996-04-11 Transcoder with prevention of tandem coding of speech
CN96193866A CN1109459C (zh) 1995-04-13 1996-04-11 预防语音串联编码的代码转换器
JP8530745A JPH11503582A (ja) 1995-04-13 1996-04-11 スピーチのタンデムコード化を防止するトランスコーダ
EP05100949.6A EP1533790B1 (en) 1995-04-13 1996-04-11 Transcoder with prevention of tandem coding of speech
CA002217693A CA2217693C (en) 1995-04-13 1996-04-11 Transcoder with prevention of tandem coding of speech
DE69634381T DE69634381T2 (de) 1995-04-13 1996-04-11 Transkodierer mit verhütung von kaskadenkodierung von sprachsignalen
NO19974705A NO321398B1 (no) 1995-04-13 1997-10-10 Transkoder med forebyggelse av tandem-koding av tale

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI951807A FI101439B (sv) 1995-04-13 1995-04-13 Transkoder med spärrning av tandemkodning
FI951807 1995-04-13

Publications (4)

Publication Number Publication Date
FI951807A0 FI951807A0 (fi) 1995-04-13
FI951807A FI951807A (sv) 1996-10-14
FI101439B1 true FI101439B1 (sv) 1998-06-15
FI101439B FI101439B (sv) 1998-06-15

Family

ID=8543252

Family Applications (1)

Application Number Title Priority Date Filing Date
FI951807A FI101439B (sv) 1995-04-13 1995-04-13 Transkoder med spärrning av tandemkodning

Country Status (11)

Country Link
US (1) US5991716A (sv)
EP (2) EP0820685B1 (sv)
JP (1) JPH11503582A (sv)
CN (1) CN1109459C (sv)
AT (1) ATE289738T1 (sv)
AU (1) AU705619B2 (sv)
DE (1) DE69634381T2 (sv)
ES (2) ES2237765T3 (sv)
FI (1) FI101439B (sv)
NO (1) NO321398B1 (sv)
WO (1) WO1996032823A1 (sv)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5943376A (en) * 1995-04-06 1999-08-24 Motorola, Inc. Method and system for time aligning a frame in a communication system
DE19516078B4 (de) * 1995-05-05 2006-06-08 Robert Bosch Gmbh Verfahren zur Übertragung von Daten, insbesondere GSM-Daten
DE19544367A1 (de) * 1995-11-29 1997-06-05 Bosch Gmbh Robert Verfahren zum Übertragen von Daten, insbesondere von GSM-Daten
FI102445B1 (sv) * 1996-02-08 1998-11-30 Nokia Telecommunications Oy Transmissionsanordning för förbindelse mellan stationer
DE59712541D1 (de) * 1996-12-04 2006-03-30 Bosch Gmbh Robert Verfahren zum Übertragen von Daten, insbesondere von GSM-Daten
FI106082B (sv) 1996-12-05 2000-11-15 Nokia Networks Oy Förfarande för detektering av återkoppling av en talkanal och talbehandlingsanordning
GB2320166A (en) * 1996-12-09 1998-06-10 Motorola Ltd method of reverting to tandem operation between transcoders of a communication system
FI105864B (sv) 1997-04-18 2000-10-13 Nokia Networks Oy Mekanism för att avlägsna eko
FI971959A (sv) * 1997-05-07 1998-11-08 Nokia Telecommunications Oy Förfarande för eliminering av synkroniseringsfel samt radiosystem
FI105372B (sv) * 1997-07-22 2000-07-31 Nokia Networks Oy Identifiering av en TRAU-ram i ett mobilkommunikationssystem
WO1999035875A1 (en) * 1997-12-31 1999-07-15 Nokia Networks Oy Method for performing discontinous transmission in an asynchronous transfer mode
DE19804581C2 (de) * 1998-02-05 2000-08-17 Siemens Ag Verfahren und Funk-Kommunikationssystem zur Übertragung von Sprachinformation
US6850883B1 (en) 1998-02-09 2005-02-01 Nokia Networks Oy Decoding method, speech coding processing unit and a network element
FR2781110B1 (fr) * 1998-07-13 2000-08-11 Alsthom Cge Alcatel Procede et dispositif de transmission de donnees sur un canal de paroles
FI982796A (sv) 1998-12-23 2000-06-24 Nokia Networks Oy Effektivering av dataöverföring
WO2000046789A1 (fr) * 1999-02-05 2000-08-10 Fujitsu Limited Detecteur de la presence d'un son et procede de detection de la presence et/ou de l'absence d'un son
JP2000244384A (ja) * 1999-02-18 2000-09-08 Mitsubishi Electric Corp 移動通信端末装置及び移動通信端末装置における音声符号化レート決定方法
US6657996B1 (en) * 1999-04-21 2003-12-02 Telogy Networks, Inc. Apparatus and method for improving voice quality by removing tandem codecs in a voice communication link
GB2350532B (en) * 1999-05-28 2001-08-08 Mitel Corp Method to generate telephone comfort noise during silence in a packetized voice communication system
US6292781B1 (en) * 1999-05-28 2001-09-18 Motorola Method and apparatus for facilitating distributed speech processing in a communication system
SE522356C2 (sv) * 1999-07-09 2004-02-03 Ericsson Telefon Ab L M Transmission av komprimerad information med realtidskrav i ett paketorienterat informationsnät
FI991605A (sv) * 1999-07-14 2001-01-15 Nokia Networks Oy Förfarande för att förminska beräkningskapacitetet som behövs i talkod ning och i talavkodning och ett nätverkelement
EP1069738A1 (en) * 1999-07-16 2001-01-17 Alcatel A gateway comprising transcoding means
GB2353192B (en) 1999-08-11 2004-02-25 Ericsson Telefon Ab L M Transcoder rate controller
FI109508B (sv) * 1999-09-28 2002-08-15 Nokia Corp Förfarande för att allokera transmissionskanaler i ett Abis-gränssnitt i ett paketcellulärt radionät och nätdel av ett paketcellulärt radionät
AU7615700A (en) * 1999-09-30 2001-04-30 Nokia Corporation Voice over pcm technique providing compatibility between pcm data and lower ratevocoder data
US6542546B1 (en) 2000-02-02 2003-04-01 Mitsubishi Electric Research Laboratories, Inc. Adaptable compressed bitstream transcoder
WO2002017672A1 (fr) * 2000-08-21 2002-02-28 Fujitsu Limited Systeme de communication
US6721538B1 (en) * 2000-10-05 2004-04-13 Hughes Electronics Corporation Time-offset distribution to ensure constant satellite power
US6708147B2 (en) * 2001-02-28 2004-03-16 Telefonaktiebolaget Lm Ericsson(Publ) Method and apparatus for providing comfort noise in communication system with discontinuous transmission
US7012901B2 (en) * 2001-02-28 2006-03-14 Cisco Systems, Inc. Devices, software and methods for generating aggregate comfort noise in teleconferencing over VoIP networks
JP4518714B2 (ja) * 2001-08-31 2010-08-04 富士通株式会社 音声符号変換方法
KR100460109B1 (ko) * 2001-09-19 2004-12-03 엘지전자 주식회사 음성패킷 변환을 위한 lsp 파라미터 변환장치 및 방법
GB2381702B (en) * 2001-11-02 2004-01-07 Motorola Inc Communication system, user equipment and method of performing a conference call therefor
AU2002317686A1 (en) * 2002-05-31 2003-12-19 Siemens Aktiengesellschaft Interrogation of the current valid bit rate for the interruption of a trfo call
JP2004061646A (ja) * 2002-07-25 2004-02-26 Fujitsu Ltd Tfo機能を有する音声符号化器および方法
JP2004069963A (ja) * 2002-08-06 2004-03-04 Fujitsu Ltd 音声符号変換装置及び音声符号化装置
US7808920B2 (en) 2002-10-28 2010-10-05 Qualcomm Incorporated Tandem-free vocoder operations between non-compatible communication systems
KR100451622B1 (ko) * 2002-11-11 2004-10-08 한국전자통신연구원 통신용 보코더 및 이를 이용한 통신 방법
US20060069549A1 (en) * 2003-04-08 2006-03-30 Koninklijke Philips Electronics N.V. Updating of a buried data channel
JP4370802B2 (ja) * 2003-04-22 2009-11-25 富士通株式会社 データ処理方法およびデータ処理装置
GB0408856D0 (en) * 2004-04-21 2004-05-26 Nokia Corp Signal encoding
FR2881867A1 (fr) * 2005-02-04 2006-08-11 France Telecom Procede de transmission de marques de fin de parole dans un systeme de reconnaissance de la parole
JP4793539B2 (ja) * 2005-03-29 2011-10-12 日本電気株式会社 符号変換方法及び装置とプログラム並びにその記憶媒体
ES2399562T3 (es) * 2006-10-13 2013-04-02 Auro Technologies Método y codificador para combinar conjuntos de datos digitales, método para descodificar y descodificador para tales conjuntos de datos digitales combinados y soporte de grabación para almacenar tales conjuntos de datos digitales combinados
US20090227299A1 (en) * 2008-03-10 2009-09-10 Samsung Electronics Co., Ltd. System and method for providing interchangeable modules for a mobile station
US8422679B2 (en) * 2008-10-17 2013-04-16 Motorola Solutions, Inc. Method and device for sending encryption parameters
CN101783142B (zh) * 2009-01-21 2012-08-15 北京工业大学 转码方法、装置和通信设备
CN102668411B (zh) * 2009-02-09 2014-07-09 华为技术有限公司 Dtx比特的映射方法和设备
EP2936486B1 (en) 2012-12-21 2018-07-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Comfort noise addition for modeling background noise at low bit-rates
AU2013366642B2 (en) * 2012-12-21 2016-09-22 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Generation of a comfort noise with high spectro-temporal resolution in discontinuous transmission of audio signals
CN107424622B (zh) 2014-06-24 2020-12-25 华为技术有限公司 音频编码方法和装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924480A (en) * 1988-03-11 1990-05-08 American Telephone And Telegraph Company Codecs with suppression of multiple encoding/decodings across a connection
US5430724A (en) * 1993-07-02 1995-07-04 Telefonaktiebolaget L M Ericsson TDMA on a cellular communications system PCM link
US5491719A (en) * 1993-07-02 1996-02-13 Telefonaktiebolaget Lm Ericsson System for handling data errors on a cellular communications system PCM link
FI93915C (sv) * 1993-09-20 1995-06-12 Nokia Telecommunications Oy Transkoder- och transdekoderenhet för ett digitalt radiotelefonsystem samt förfarande för reglering av transkoder- och transdekoderenhets utgång
US6134521A (en) * 1994-02-17 2000-10-17 Motorola, Inc. Method and apparatus for mitigating audio degradation in a communication system
FI941125A (sv) * 1994-03-09 1995-09-10 Nokia Telecommunications Oy Mobiltelefonsystem samt samtalsstyrförfarande

Also Published As

Publication number Publication date
AU705619B2 (en) 1999-05-27
ES2491890T3 (es) 2014-09-08
WO1996032823A1 (en) 1996-10-17
CN1185262A (zh) 1998-06-17
EP1533790A1 (en) 2005-05-25
NO974705D0 (no) 1997-10-10
CN1109459C (zh) 2003-05-21
ES2237765T3 (es) 2005-08-01
NO321398B1 (no) 2006-05-08
NO974705L (no) 1997-12-11
ATE289738T1 (de) 2005-03-15
EP0820685B1 (en) 2005-02-23
FI951807A0 (fi) 1995-04-13
DE69634381D1 (de) 2005-03-31
JPH11503582A (ja) 1999-03-26
US5991716A (en) 1999-11-23
EP1533790B1 (en) 2014-06-18
DE69634381T2 (de) 2006-01-12
AU5336396A (en) 1996-10-30
FI951807A (sv) 1996-10-14
FI101439B (sv) 1998-06-15
EP0820685A1 (en) 1998-01-28

Similar Documents

Publication Publication Date Title
FI101439B1 (sv) Transkoder med spärrning av tandemkodning
FI98972C (sv) Digitaliskt mobiltelesystem
CA2524333C (en) Method and apparatus for transferring data over a voice channel
FI113233B (sv) Förfarande för att dela en kanal med ett styrt tidsintervallstillägnande i ett multiplexerat radiokommunikationssystem samt motsvarande terminalanordning och infrastruktur
US5528593A (en) Method and apparatus for controlling power in a variable rate communication system
KR100371068B1 (ko) Cdma 통신 시스템에서 다양한 채널 형태의 신호를통신하기 위한 방법 및 장치
FI102445B (sv) Transmissionsanordning för förbindelse mellan stationer
SE9603560D0 (sv) Quality-Based handover
ES2111482A1 (es) Metodo para realizar transmisiones discontinuas en una red de telecomunicaciones y utilizacion del mismo en un sistema global de comunicaciones moviles. (gsm)
EP0984570B1 (en) Method and apparatus for improving the quality of digital signals transmitted over wireless communication facilities
KR960020120A (ko) 셀룰러 송수신기 및 디지탈 셀룰러 통신 시스템
HUP9800701A2 (hu) Eljárás adatok, elsősorban GSM-adatok átvitelére
WO1998048527A2 (en) Echo cancellation mechanism
FI109755B (sv) Förfarande för att styra en transkoder i ett mobilkommunikationssystem samt ett mobilkommunikationssystem
EP1142387B1 (en) Boosting of data transmission
CA2217693A1 (en) Transcoder with prevention of tandem coding of speech
WO2001033731A3 (de) Verfahren zur synchronisation einer signalübertragung in aufwärtsrichtung in einem funk-kommunikationssystem
SE9502684L (sv) Antennanordning
DK0609418T3 (da) Radiosystem og datatransmission i et radiosystem
KR970058163A (ko) Ds/cdma 셀룰라 시스템에서의 트래픽 제어방법

Legal Events

Date Code Title Description
FG Patent granted

Owner name: NOKIA TELECOMMUNICATIONS OY

PC Transfer of assignment of patent

Owner name: 2011 INTELLECTUAL PROPERTY ASSET TRUST

PC Transfer of assignment of patent

Owner name: CORE WIRELESS LICENSING S.A.R.L.

MA Patent expired