BR0000002A - Método para transmitir dados em canais de voz sem fio - Google Patents
Método para transmitir dados em canais de voz sem fioInfo
- 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
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)
- Transmitters (AREA)
- Mobile Radio Communication Systems (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.
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 (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002228646A1 (en) * | 2000-11-07 | 2002-05-21 | 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 |
| US12254895B2 (en) | 2021-07-02 | 2025-03-18 | Digital Voice Systems, Inc. | Detecting and compensating for the presence of a speaker mask in a speech signal |
| US11990144B2 (en) | 2021-07-28 | 2024-05-21 | Digital Voice Systems, Inc. | Reducing perceived effects of non-voice data in digital speech |
-
1999
- 1999-12-17 AU AU65337/99A patent/AU6533799A/en not_active Abandoned
- 1999-12-30 CA CA002293165A patent/CA2293165A1/en not_active Abandoned
-
2000
- 2000-01-03 BR BR0000002-7A patent/BR0000002A/pt not_active Application Discontinuation
- 2000-01-06 EP EP00300042A patent/EP1020848A2/en not_active Withdrawn
- 2000-01-07 KR KR1020000000557A patent/KR20000053407A/ko not_active Application Discontinuation
- 2000-01-10 CN CN00101021A patent/CN1262577A/zh active Pending
- 2000-01-11 JP JP2766A patent/JP2000209663A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000209663A (ja) | 2000-07-28 |
| AU6533799A (en) | 2000-07-13 |
| KR20000053407A (ko) | 2000-08-25 |
| CN1262577A (zh) | 2000-08-09 |
| CA2293165A1 (en) | 2000-07-11 |
| 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) |