BR0011508A - Sistema de codificação de fala, e, processo para usar um codificador de fala em um sistema de telecomunicação celular digital - Google Patents
Sistema de codificação de fala, e, processo para usar um codificador de fala em um sistema de telecomunicação celular digitalInfo
- Publication number
- BR0011508A BR0011508A BR0011508-8A BR0011508A BR0011508A BR 0011508 A BR0011508 A BR 0011508A BR 0011508 A BR0011508 A BR 0011508A BR 0011508 A BR0011508 A BR 0011508A
- Authority
- BR
- Brazil
- Prior art keywords
- rate data
- low rate
- encoder
- speech
- digital cellular
- Prior art date
Links
- 230000001413 cellular effect Effects 0.000 title abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/18—Service support devices; Network management devices
- H04W88/181—Transcoding devices; Rate adaptation devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/30—Systems using multi-frequency codes wherein each code element is represented by a combination of frequencies
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
"SISTEMA DE CODIFICAçãO DE FALA, E, PROCESSO PARA USAR UM CODIFICADOR DE FALA EM UM SISTEMA DE TELECOMUNICAçãO CELULAR DIGITAL". Sinais de dados de baixa taxa, tais como sinais de TTY padrão e sinais de DTMF padrão, podem ser analisados efetivamente e codificados por codificadores de fala usados em sistema celular digital convencional. Isto é realizado provendo um codificador de dados de baixa taxa no trajeto de transmissão do sinal de dados de baixa taxa, exatamente antes do codificador de fala usado pelo sistema celular digital. Fazendo assim, o sinal de dados de baixa taxa padrão é transformado (isto é, modificado) pelo codificador de dados de baixa taxa em um sinal que é mais compatível com o codificador de fala. Semelhantemente, um decodificador de dados de baixa taxa é provido na extremidade receptora do trajeto de transmissão para decodificar o sinal de dados de baixa taxa modificado.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/333,890 US6345251B1 (en) | 1999-06-15 | 1999-06-15 | Low-rate speech coder for non-speech data transmission |
PCT/SE2000/001082 WO2000078029A1 (en) | 1999-06-15 | 2000-05-26 | Low-rate speech coder for non-speech data transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0011508A true BR0011508A (pt) | 2002-03-26 |
Family
ID=23304674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0011508-8A BR0011508A (pt) | 1999-06-15 | 2000-05-26 | Sistema de codificação de fala, e, processo para usar um codificador de fala em um sistema de telecomunicação celular digital |
Country Status (5)
Country | Link |
---|---|
US (1) | US6345251B1 (pt) |
EP (1) | EP1190560A1 (pt) |
AU (1) | AU5857400A (pt) |
BR (1) | BR0011508A (pt) |
WO (1) | WO2000078029A1 (pt) |
Families Citing this family (52)
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US6493338B1 (en) * | 1997-05-19 | 2002-12-10 | Airbiquity Inc. | Multichannel in-band signaling for data communications over digital wireless telecommunications networks |
US6690681B1 (en) * | 1997-05-19 | 2004-02-10 | Airbiquity Inc. | In-band signaling for data communications over digital wireless telecommunications network |
US6603835B2 (en) | 1997-09-08 | 2003-08-05 | Ultratec, Inc. | System for text assisted telephony |
US6611804B1 (en) * | 1999-06-15 | 2003-08-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Universal TTY/TDD devices for robust text and data transmission via PSTN and cellular phone networks |
US6813490B1 (en) * | 1999-12-17 | 2004-11-02 | Nokia Corporation | Mobile station with audio signal adaptation to hearing characteristics of the user |
US6628967B1 (en) * | 1999-12-30 | 2003-09-30 | Nortel Networks Limited | Wireless communication device capable to transmit/receive TTY/TDD messages with variable data rate, embedded into audio data frames |
US6961320B1 (en) * | 2000-04-03 | 2005-11-01 | Hughes Electronics Corporation | In-band transmission of TTY/TTD signals for systems employing low bit-rate voice compression |
WO2002039762A2 (en) * | 2000-11-07 | 2002-05-16 | Ericsson Inc. | Method of and apparatus for detecting tty type calls in cellular systems |
US8416925B2 (en) | 2005-06-29 | 2013-04-09 | Ultratec, Inc. | Device independent text captioned telephone service |
US7151820B2 (en) * | 2001-09-20 | 2006-12-19 | Siemens Communications Inc. | System for and method of detecting a connection of a text telephony (TTY) device to a mobile phone |
US7215965B2 (en) | 2001-11-01 | 2007-05-08 | Airbiquity Inc. | Facility and method for wireless transmission of location data in a voice channel of a digital wireless telecommunications network |
US20030119518A1 (en) * | 2001-12-26 | 2003-06-26 | Samusung Electroincs Co. Ltd. | Apparatus and method for selecting TTY/TDD baudot code-capable vocoders in a wireless mobile network |
US7269188B2 (en) * | 2002-05-24 | 2007-09-11 | Airbiquity, Inc. | Simultaneous voice and data modem |
BR0313259A (pt) * | 2002-08-06 | 2005-06-14 | Siemens Ag | Processamento de erros de informações úteis recebidas através de uma rede de comunicação |
US20040064314A1 (en) * | 2002-09-27 | 2004-04-01 | Aubert Nicolas De Saint | Methods and apparatus for speech end-point detection |
US7170976B1 (en) * | 2002-12-17 | 2007-01-30 | Cisco Technology, Inc. | System and method for communicating text teletype (TTY) information in a communication network |
US8515024B2 (en) | 2010-01-13 | 2013-08-20 | Ultratec, Inc. | Captioned telephone service |
US7508810B2 (en) | 2005-01-31 | 2009-03-24 | Airbiquity Inc. | Voice channel control of wireless packet data communications |
US7792143B1 (en) | 2005-03-25 | 2010-09-07 | Cisco Technology, Inc. | Method and apparatus for interworking dissimilar text phone protocols over a packet switched network |
US8054924B2 (en) * | 2005-05-17 | 2011-11-08 | General Motors Llc | Data transmission method with phase shift error correction |
US11258900B2 (en) | 2005-06-29 | 2022-02-22 | Ultratec, Inc. | Device independent text captioned telephone service |
US7620122B1 (en) | 2005-06-29 | 2009-11-17 | St-Ericsson Sa | Communication apparatus including a demodulator having a tone detection mechanism |
US8194779B2 (en) * | 2005-10-24 | 2012-06-05 | General Motors Llc | Method for data communication via a voice channel of a wireless communication network |
US8259840B2 (en) * | 2005-10-24 | 2012-09-04 | General Motors Llc | Data communication via a voice channel of a wireless communication network using discontinuities |
US8194526B2 (en) * | 2005-10-24 | 2012-06-05 | General Motors Llc | Method for data communication via a voice channel of a wireless communication network |
US20070190950A1 (en) * | 2006-02-15 | 2007-08-16 | General Motors Corporation | Method of configuring voice and data communication over a voice channel |
US7924934B2 (en) | 2006-04-07 | 2011-04-12 | Airbiquity, Inc. | Time diversity voice channel data communications |
US9048784B2 (en) * | 2007-04-03 | 2015-06-02 | General Motors Llc | Method for data communication via a voice channel of a wireless communication network using continuous signal modulation |
US7912149B2 (en) * | 2007-05-03 | 2011-03-22 | General Motors Llc | Synchronization and segment type detection method for data transmission via an audio communication system |
MX2010003700A (es) | 2007-10-20 | 2010-04-21 | Airbiquity Inc | Se?alizacion en banda inalambrica con sistemas instalados en un vehiculo. |
US8964788B2 (en) * | 2008-06-05 | 2015-02-24 | Qualcomm Incorporated | System and method of an in-band modem for data communications over digital wireless communication networks |
US8725502B2 (en) * | 2008-06-05 | 2014-05-13 | Qualcomm Incorporated | System and method of an in-band modem for data communications over digital wireless communication networks |
US8503517B2 (en) * | 2008-06-05 | 2013-08-06 | Qualcomm Incorporated | System and method of an in-band modem for data communications over digital wireless communication networks |
US9083521B2 (en) * | 2008-06-05 | 2015-07-14 | Qualcomm Incorporated | System and method of an in-band modem for data communications over digital wireless communication networks |
US8958441B2 (en) | 2008-06-05 | 2015-02-17 | Qualcomm Incorporated | System and method of an in-band modem for data communications over digital wireless communication networks |
US8825480B2 (en) * | 2008-06-05 | 2014-09-02 | Qualcomm Incorporated | Apparatus and method of obtaining non-speech data embedded in vocoder packet |
US7983310B2 (en) | 2008-09-15 | 2011-07-19 | Airbiquity Inc. | Methods for in-band signaling through enhanced variable-rate codecs |
US8594138B2 (en) | 2008-09-15 | 2013-11-26 | Airbiquity Inc. | Methods for in-band signaling through enhanced variable-rate codecs |
FR2937491B1 (fr) * | 2008-10-17 | 2010-11-19 | Wavecom | Procedes de transmission et de gestion de trames de voix, produit programme d'ordinateur, moyen de stockage et dispositifs correspondants. |
AU2010221411B2 (en) * | 2009-03-03 | 2013-11-07 | Airbiquity Inc. | In-vehicle system (IVS) control of emergency data communications |
US8073440B2 (en) | 2009-04-27 | 2011-12-06 | Airbiquity, Inc. | Automatic gain control in a personal navigation device |
US8855100B2 (en) * | 2009-06-16 | 2014-10-07 | Qualcomm Incorporated | System and method for supporting higher-layer protocol messaging in an in-band modem |
US8743864B2 (en) * | 2009-06-16 | 2014-06-03 | Qualcomm Incorporated | System and method for supporting higher-layer protocol messaging in an in-band modem |
US8418039B2 (en) | 2009-08-03 | 2013-04-09 | Airbiquity Inc. | Efficient error correction scheme for data transmission in a wireless in-band signaling system |
US8249865B2 (en) | 2009-11-23 | 2012-08-21 | Airbiquity Inc. | Adaptive data transmission for a digital in-band modem operating over a voice channel |
US8848825B2 (en) | 2011-09-22 | 2014-09-30 | Airbiquity Inc. | Echo cancellation in wireless inband signaling modem |
US20180034961A1 (en) | 2014-02-28 | 2018-02-01 | Ultratec, Inc. | Semiautomated Relay Method and Apparatus |
US10389876B2 (en) | 2014-02-28 | 2019-08-20 | Ultratec, Inc. | Semiautomated relay method and apparatus |
US20180270350A1 (en) | 2014-02-28 | 2018-09-20 | Ultratec, Inc. | Semiautomated relay method and apparatus |
US10878721B2 (en) | 2014-02-28 | 2020-12-29 | Ultratec, Inc. | Semiautomated relay method and apparatus |
US10748523B2 (en) | 2014-02-28 | 2020-08-18 | Ultratec, Inc. | Semiautomated relay method and apparatus |
US11539900B2 (en) | 2020-02-21 | 2022-12-27 | Ultratec, Inc. | Caption modification and augmentation systems and methods for use by hearing assisted user |
Family Cites Families (6)
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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 |
FI940093A0 (fi) | 1994-01-10 | 1994-01-10 | Nokia Mobile Phones Ltd | Foerfarande foer oeverfoering av data och datagraenssnittenhet |
US5706282A (en) * | 1994-11-28 | 1998-01-06 | Lucent Technologies Inc. | Asymmetric speech coding for a digital cellular communications system |
US5951709A (en) * | 1995-02-28 | 1999-09-14 | Kabushiki Kaisha Toshiba | Radio communication system using TDD scheme |
DE19610777A1 (de) | 1996-03-19 | 1997-09-25 | Deutsche Telephonwerk Kabel | Datenübertragung im Sprachkanal von DECT-Anlagen |
US5995547A (en) | 1996-11-26 | 1999-11-30 | Ericsson Inc. | Method and apparatus for mapping between cellular bit streams and wireline waveforms |
-
1999
- 1999-06-15 US US09/333,890 patent/US6345251B1/en not_active Expired - Lifetime
-
2000
- 2000-05-26 AU AU58574/00A patent/AU5857400A/en not_active Abandoned
- 2000-05-26 BR BR0011508-8A patent/BR0011508A/pt not_active Application Discontinuation
- 2000-05-26 WO PCT/SE2000/001082 patent/WO2000078029A1/en not_active Application Discontinuation
- 2000-05-26 EP EP00944483A patent/EP1190560A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
AU5857400A (en) | 2001-01-02 |
US6345251B1 (en) | 2002-02-05 |
WO2000078029A1 (en) | 2000-12-21 |
EP1190560A1 (en) | 2002-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA10 | Dismissal: dismissal - article 33 of industrial property law | ||
B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |