BR0000002A - Método para transmitir dados em canais de voz sem fio - Google Patents

Método para transmitir dados em canais de voz sem fio

Info

Publication number
BR0000002A
BR0000002A BR0000002-7A BR0000002A BR0000002A BR 0000002 A BR0000002 A BR 0000002A BR 0000002 A BR0000002 A BR 0000002A BR 0000002 A BR0000002 A BR 0000002A
Authority
BR
Brazil
Prior art keywords
voice
vocoder
transmitting data
information
wireless voice
Prior art date
Application number
BR0000002-7A
Other languages
English (en)
Inventor
Steven A Benno
Michael Charles Recchione
Original Assignee
Lucent Technologies Inc
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 Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of BR0000002A publication Critical patent/BR0000002A/pt

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
    • 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
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • 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
    • 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
    • G10L19/16—Vocoder architecture
    • 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)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)

Abstract

"MéTODO PARA TRANSMITIR DADOS EM CANAIS DE VOZ SEM FIO". é enviada informação sem voz nos bits alocados a uma ou a ambas as saídas das listas de códigos de um vocoder através do ajuste para zero do ganho para a lista de códigos correspondente. Ajustando-se o ganho para zero, a saída de lista de códigos não será interpretada pelo vocoder de recepção. Deste modo, é possível transmitir informações adicionais em um modo totalmente transparente para o vocoder. As aplicações para esta técnica de envio de mensagens "secretas" incluem, mas não se limitam a, transmitir parâmetros para gerar sinais sem voz. Como exemplo, informações para gerar tons de chamada em espera, DTMF ou caracteres de TTY/TDD podem ser clandestinamente embutidos na corrente de bits comprimidos de modo que estes tons sem voz possam ser regenerados.
BR0000002-7A 1999-01-11 2000-01-03 Método para transmitir dados em canais de voz sem fio BR0000002A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22810299A 1999-01-11 1999-01-11

Publications (1)

Publication Number Publication Date
BR0000002A true BR0000002A (pt) 2002-01-02

Family

ID=22855803

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0000002-7A BR0000002A (pt) 1999-01-11 2000-01-03 Método para transmitir dados em canais de voz sem fio

Country Status (7)

Country Link
EP (1) EP1020848A2 (pt)
JP (1) JP2000209663A (pt)
KR (1) KR20000053407A (pt)
CN (1) CN1262577A (pt)
AU (1) AU6533799A (pt)
BR (1) BR0000002A (pt)
CA (1) CA2293165A1 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002039762A2 (en) * 2000-11-07 2002-05-16 Ericsson Inc. Method of and apparatus for detecting tty type calls in cellular systems
US7310596B2 (en) 2002-02-04 2007-12-18 Fujitsu Limited Method and system for embedding and extracting data from encoded voice code
JP4330346B2 (ja) * 2002-02-04 2009-09-16 富士通株式会社 音声符号に対するデータ埋め込み／抽出方法および装置並びにシステム
US7932851B1 (en) * 2002-10-15 2011-04-26 Itt Manufacturing Enterprises, Inc. Ranging signal structure with hidden acquisition code
US7970606B2 (en) 2002-11-13 2011-06-28 Digital Voice Systems, Inc. Interoperable vocoder
US7634399B2 (en) 2003-01-30 2009-12-15 Digital Voice Systems, Inc. Voice transcoder
EP1455509A3 (de) * 2003-03-03 2005-01-05 FREQUENTIS GmbH Verfahren und Anordnung zur Sprachaufzeichnung
US8359197B2 (en) 2003-04-01 2013-01-22 Digital Voice Systems, Inc. Half-rate vocoder
FR2859566B1 (fr) 2003-09-05 2010-11-05 Eads Telecom Procede de transmission d'un flux d'information par insertion a l'interieur d'un flux de donnees de parole, et codec parametrique pour sa mise en oeuvre
US7752039B2 (en) * 2004-11-03 2010-07-06 Nokia Corporation Method and device for low bit rate speech coding
DE102007007627A1 (de) * 2006-09-15 2008-03-27 Rwth Aachen Steganographie in digitalen Signal-Codierern
US8036886B2 (en) 2006-12-22 2011-10-11 Digital Voice Systems, Inc. Estimation of pulsed speech model parameters
US11270714B2 (en) 2020-01-08 2022-03-08 Digital Voice Systems, Inc. Speech coding using time-varying interpolation
US11990144B2 (en) 2021-07-28 2024-05-21 Digital Voice Systems, Inc. Reducing perceived effects of non-voice data in digital speech

Also Published As

Publication number Publication date
AU6533799A (en) 2000-07-13
JP2000209663A (ja) 2000-07-28
CA2293165A1 (en) 2000-07-11
CN1262577A (zh) 2000-08-09
KR20000053407A (ko) 2000-08-25
EP1020848A2 (en) 2000-07-19

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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]
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/12 (2013.01), G10L 25/78 (2013.01)