IT1179803B - Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio - Google Patents

Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio

Info

Publication number
IT1179803B
IT1179803B IT68078/84A IT6807884A IT1179803B IT 1179803 B IT1179803 B IT 1179803B IT 68078/84 A IT68078/84 A IT 68078/84A IT 6807884 A IT6807884 A IT 6807884A IT 1179803 B IT1179803 B IT 1179803B
Authority
IT
Italy
Prior art keywords
correction
transmitted
radio communication
low speed
communication channels
Prior art date
Application number
IT68078/84A
Other languages
English (en)
Other versions
IT8468078A0 (it
IT8468078A1 (it
Inventor
Degan Neviano Dal
Fulvio Rusina
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT68078/84A priority Critical patent/IT1179803B/it
Publication of IT8468078A0 publication Critical patent/IT8468078A0/it
Priority to US06/766,754 priority patent/US4688224A/en
Priority to JP60234688A priority patent/JPS61108233A/ja
Priority to EP85113758A priority patent/EP0180202B1/en
Priority to DE8585113758T priority patent/DE3568524D1/de
Priority to DE198585113758T priority patent/DE180202T1/de
Priority to CA000494245A priority patent/CA1236169A/en
Publication of IT8468078A1 publication Critical patent/IT8468078A1/it
Application granted granted Critical
Publication of IT1179803B publication Critical patent/IT1179803B/it

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech 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
    • G10L19/04—Speech 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
IT68078/84A 1984-10-30 1984-10-30 Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio IT1179803B (it)

Priority Applications (7)

Application Number Priority Date Filing Date Title
IT68078/84A IT1179803B (it) 1984-10-30 1984-10-30 Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio
US06/766,754 US4688224A (en) 1984-10-30 1985-08-16 Method of and device for correcting burst errors on low bit-rate coded speech signals transmitted on radio-communication channels
JP60234688A JPS61108233A (ja) 1984-10-30 1985-10-22 無線通信チヤンネルで伝送される低ビツト速度符号化された音声信号のバースト誤りを訂正するための方法と装置
EP85113758A EP0180202B1 (en) 1984-10-30 1985-10-29 Method of and device for correcting burst errors on low bit-rate coded speech signals transmitted on radio-communication channels
DE8585113758T DE3568524D1 (en) 1984-10-30 1985-10-29 Method of and device for correcting burst errors on low bit-rate coded speech signals transmitted on radio-communication channels
DE198585113758T DE180202T1 (de) 1984-10-30 1985-10-29 Verfahren und einrichtung zur korrektur der burstfehler von mit niedriger bitrate kodierten sprachsignalen auf funkuebertragungskanaelen.
CA000494245A CA1236169A (en) 1984-10-30 1985-10-30 Method of and device for correcting burst errors on low bit rate coded speech signals transmitted on radio communication channels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68078/84A IT1179803B (it) 1984-10-30 1984-10-30 Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio

Publications (3)

Publication Number Publication Date
IT8468078A0 IT8468078A0 (it) 1984-10-30
IT8468078A1 IT8468078A1 (it) 1986-04-30
IT1179803B true IT1179803B (it) 1987-09-16

Family

ID=11307678

Family Applications (1)

Application Number Title Priority Date Filing Date
IT68078/84A IT1179803B (it) 1984-10-30 1984-10-30 Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio

Country Status (6)

Country Link
US (1) US4688224A (it)
EP (1) EP0180202B1 (it)
JP (1) JPS61108233A (it)
CA (1) CA1236169A (it)
DE (2) DE180202T1 (it)
IT (1) IT1179803B (it)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837827A (en) * 1984-06-29 1989-06-06 Siemens Aktiengesellschaft Method for transmitting two independent types of information and device for implementing the method
US4675863A (en) 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
JP2597987B2 (ja) * 1986-02-08 1997-04-09 ソニー株式会社 ブロツク化伝送信号のデコード装置
US4802171A (en) * 1987-06-04 1989-01-31 Motorola, Inc. Method for error correction in digitally encoded speech
US4831624A (en) * 1987-06-04 1989-05-16 Motorola, Inc. Error detection method for sub-band coding
US5031218A (en) * 1988-03-30 1991-07-09 International Business Machines Corporation Redundant message processing and storage
JPH0211053A (ja) * 1988-03-30 1990-01-16 Internatl Business Mach Corp <Ibm> メッセージ処理方法
US5105464A (en) * 1989-05-18 1992-04-14 General Electric Company Means for improving the speech quality in multi-pulse excited linear predictive coding
AU6174290A (en) * 1989-10-06 1991-04-28 Motorola, Inc. Error detection/correction scheme for vocoders
US5073940A (en) * 1989-11-24 1991-12-17 General Electric Company Method for protecting multi-pulse coders from fading and random pattern bit errors
US5097507A (en) * 1989-12-22 1992-03-17 General Electric Company Fading bit error protection for digital cellular multi-pulse speech coder
JP3102015B2 (ja) * 1990-05-28 2000-10-23 日本電気株式会社 音声復号化方法
DE69233502T2 (de) * 1991-06-11 2006-02-23 Qualcomm, Inc., San Diego Vocoder mit veränderlicher Bitrate
DE4137609C2 (de) † 1991-11-15 1998-04-16 Bosch Gmbh Robert Kombiniertes Sprach- und Kanaldecodierverfahren
EP0551705A3 (en) * 1992-01-15 1993-08-18 Ericsson Ge Mobile Communications Inc. Method for subbandcoding using synthetic filler signals for non transmitted subbands
US5384793A (en) * 1992-01-28 1995-01-24 Ericsson Ge Mobile Communications Inc. Fading and random pattern error protection method for dynamic bit allocation sub-band coding
US5271011A (en) * 1992-03-16 1993-12-14 Scientific-Atlanta, Inc. Digital audio data muting system and method
FI90477C (fi) * 1992-03-23 1994-02-10 Nokia Mobile Phones Ltd Puhesignaalin laadun parannusmenetelmä lineaarista ennustusta käyttävään koodausjärjestelmään
KR950002672B1 (ko) * 1992-04-11 1995-03-24 삼성전자주식회사 음성 데이타 보간회로
FI92125C (fi) * 1992-10-30 1994-09-26 Nokia Mobile Phones Ltd Radiopuhelinjärjestelmä
US5546383A (en) 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
US5450449A (en) * 1994-03-14 1995-09-12 At&T Ipm Corp. Linear prediction coefficient generation during frame erasure or packet loss
FI97182C (fi) * 1994-12-05 1996-10-25 Nokia Telecommunications Oy Menetelmä vastaanotettujen huonojen puhekehysten korvaamiseksi digitaalisessa vastaanottimessa sekä digitaalisen tietoliikennejärjestelmän vastaanotin
US5710781A (en) * 1995-06-02 1998-01-20 Ericsson Inc. Enhanced fading and random pattern error protection for dynamic bit allocation sub-band coding
JP3198969B2 (ja) * 1997-03-28 2001-08-13 日本電気株式会社 デジタル音声無線伝送システム、デジタル音声無線送信装置およびデジタル音声無線受信再生装置
CN1270467C (zh) * 2000-02-29 2006-08-16 皇家菲利浦电子有限公司 检测被破坏信号参数的错误隐蔽方法
US8578247B2 (en) * 2008-05-08 2013-11-05 Broadcom Corporation Bit error management methods for wireless audio communication channels
US8620660B2 (en) * 2010-10-29 2013-12-31 The United States Of America, As Represented By The Secretary Of The Navy Very low bit rate signal coder and decoder
US9154996B2 (en) 2013-06-12 2015-10-06 Honeywell International Inc. Apparatus and method for maintaining reliability of wireless network having asymmetric or other low quality wireless links
US9241281B2 (en) * 2013-06-12 2016-01-19 Honeywell International Inc. Apparatus and method for reporting of communication path quality within a wireless network
CN107918877B (zh) * 2016-10-08 2021-08-10 腾讯科技（深圳）有限公司 数据获取方法及装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380612A1 (fr) * 1977-02-09 1978-09-08 Thomson Csf Dispositif de discrimination des signaux de parole et systeme d'alternat comportant un tel dispositif
US4184049A (en) * 1978-08-25 1980-01-15 Bell Telephone Laboratories, Incorporated Transform speech signal coding with pitch controlled adaptive quantizing
FR2451680A1 (fr) * 1979-03-12 1980-10-10 Soumagne Joel Discriminateur parole/silence pour interpolation de la parole
US4357491A (en) * 1980-09-16 1982-11-02 Northern Telecom Limited Method of and apparatus for detecting speech in a voice channel signal
US4531228A (en) * 1981-10-20 1985-07-23 Nissan Motor Company, Limited Speech recognition system for an automotive vehicle
JPS5876899A (ja) * 1981-10-31 1983-05-10 株式会社東芝 音声区間検出装置
GB2117608B (en) * 1982-02-17 1986-07-30 Gen Electric Co Plc Speech signal transmission system
JPS5938912A (ja) * 1982-08-27 1984-03-03 Nec Corp Ｐｃｍオ−デイオエラ−補正回路
DE3374109D1 (en) * 1983-10-28 1987-11-19 Ibm Method of recovering lost information in a digital speech transmission system, and transmission system using said method

Also Published As

Publication number Publication date
DE180202T1 (de) 1987-05-21
JPS61108233A (ja) 1986-05-26
EP0180202A3 (en) 1986-07-09
IT8468078A0 (it) 1984-10-30
EP0180202A2 (en) 1986-05-07
DE3568524D1 (en) 1989-04-06
US4688224A (en) 1987-08-18
IT8468078A1 (it) 1986-04-30
CA1236169A (en) 1988-05-03
EP0180202B1 (en) 1989-03-01

Similar Documents

Publication Publication Date Title
IT1179803B (it) Metodo e dispositivo per la correzione di errori causati da rumore di tipo impulsivo su segnali vocali codificati con bassa velocita di ci fra e trasmessi su canali di comunicazione radio
DE3585365D1 (de) Sender-/empfaengerfilter.
IT8420476A0 (it) Trasmissione simultanea di segnali vocali e dati su un canale analogico.
DE3576026D1 (de) Adaptives elektronisches pufferverstaerkersystem.
GB8707741D0 (en) Transmitting voice signal
IT8141515A0 (it) Apparecchiatura e procedimento per la ricezione di segnali.
DE3587655T2 (de) ÜBERTRAGUNGSANORDNUNG FüR DIGITALSIGNALEN.
DK30287A (da) Digitalt kommunikationssystem
BR8102439A (pt) Sistema e metodo de transmissao de dados digitais com linha de transmissao de dados adaptavel
KR860700193A (ko) 디지탈 신호 전송장치
IT8468134A1 (it) Procedimento e dispositivo per la codifica e decodifica del segnale vocale mediante tecniche di quantizzazione vettoriale.
DE3586255D1 (de) Kommunikationssystem fuer bidirektionale digitalsignale.
IT1175868B (it) Amplificatore con conversione corrente-tensione, in particolare preamplificatore di ricevitore ottico
IT1174020B (it) Apparato per la correzione di un segnale digitale, con livello di correzione controllabile
KR850003818A (ko) 신호 전송용 선체
BR8207434A (pt) Receptor de sinalizacao para ferrovia
KR870001715A (ko) 프레임 동기동작을 갖는 디지탈신호 송신시스템
IT8368221A0 (it) Ricevitore teletext perfezionato
IT8423803A1 (it) Apparato per la correzione di errori in transizioni di segnali cromatici
NO169317C (no) Sender/mottaker
BR8405833A (pt) Equipamento radio repetidor digital
IT8321610A0 (it) Analizzatore di frequenza di treni di segnali.
KR890700974A (ko) 장거리 음성/데이타 통신 시스템
DE3576104D1 (de) Unterwasserschall-sende-empfangswandler.
DE3575473D1 (de) Ultraschallsende-/-empfangsgeraet.