BR0206444A - Método e arranjo para ajustar um sinal de dados suplementares para ser embutido em um sinal de informação, dispositivo para embutir um sinal de dados suplementares em um sinal de informação, sinal de informação, e, meio de armazenagem - Google Patents
Método e arranjo para ajustar um sinal de dados suplementares para ser embutido em um sinal de informação, dispositivo para embutir um sinal de dados suplementares em um sinal de informação, sinal de informação, e, meio de armazenagemInfo
- Publication number
- BR0206444A BR0206444A BR0206444-8A BR0206444A BR0206444A BR 0206444 A BR0206444 A BR 0206444A BR 0206444 A BR0206444 A BR 0206444A BR 0206444 A BR0206444 A BR 0206444A
- Authority
- BR
- Brazil
- Prior art keywords
- information signal
- signal
- supplemental data
- data signal
- adjusting
- Prior art date
Links
- 230000000153 supplemental effect Effects 0.000 title 2
- 230000005236 sound signal Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
- G11B20/00891—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm embedded in audio data
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Editing Of Facsimile Originals (AREA)
- Traffic Control Systems (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Image Processing (AREA)
Abstract
"MéTODO E ARRANJO PARA AJUSTAR UM SINAL DE DADOS SUPLEMENTARES PARA SER EMBUTIDO EM UM SINAL DE INFORMAçãO, DISPOSITIVO PARA EMBUTIR UM SINAL DE DADOS SUPLEMENTARES EM UM SINAL DE INFORMAçãO, SINAL DE INFORMAçãO, E, MEIO DE ARMAZENAGEM". é mostrado um método para ajustar um sinal de dados suplementares (wm(n)) para ser embutido em um sinal de informação (x(n)), por exemplo um sinal de áudio. O método compreende as etapas de determinar (107) uma magnitude relativa (g(n)) de uma primeira função de propriedade (M~ x~(n)) do sinal de informação rateado ao longo de uma região de um tamanho predeterminado e uma segunda função de propriedade (M~ wm~(n)) do sinal de dados suplementares, rateado sobre a citada região; e ajustar (407) o sinal de dados suplementares de acordo com a magnitude relativa determinada.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01204387 | 2001-11-16 | ||
PCT/IB2002/004456 WO2003042978A1 (en) | 2001-11-16 | 2002-10-24 | Embedding supplementary data in an information signal |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0206444A true BR0206444A (pt) | 2003-12-30 |
Family
ID=8181250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0206444-8A BR0206444A (pt) | 2001-11-16 | 2002-10-24 | Método e arranjo para ajustar um sinal de dados suplementares para ser embutido em um sinal de informação, dispositivo para embutir um sinal de dados suplementares em um sinal de informação, sinal de informação, e, meio de armazenagem |
Country Status (10)
Country | Link |
---|---|
US (1) | US7561688B2 (pt) |
EP (1) | EP1449204B1 (pt) |
JP (1) | JP4474161B2 (pt) |
KR (1) | KR20040058289A (pt) |
CN (1) | CN1308912C (pt) |
AT (1) | ATE315822T1 (pt) |
BR (1) | BR0206444A (pt) |
DE (1) | DE60208706T2 (pt) |
ES (1) | ES2255626T3 (pt) |
WO (1) | WO2003042978A1 (pt) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2434538A1 (en) * | 2000-12-14 | 2002-10-17 | Ecd Systems, Inc. | Systems and methods for optical media modification |
GB2431837A (en) * | 2005-10-28 | 2007-05-02 | Sony Uk Ltd | Audio processing |
US20130317817A1 (en) * | 2012-05-22 | 2013-11-28 | Nuance Communications, Inc. | Method and Apparatus for Applying Steganography in a Signed Model |
FR2992766A1 (fr) * | 2012-06-29 | 2014-01-03 | France Telecom | Attenuation efficace de pre-echos dans un signal audionumerique |
US9269363B2 (en) * | 2012-11-02 | 2016-02-23 | Dolby Laboratories Licensing Corporation | Audio data hiding based on perceptual masking and detection based on code multiplexing |
US9099080B2 (en) * | 2013-02-06 | 2015-08-04 | Muzak Llc | System for targeting location-based communications |
US11244692B2 (en) * | 2018-10-04 | 2022-02-08 | Digital Voice Systems, Inc. | Audio watermarking via correlation modification using an amplitude and a magnitude modification based on watermark data and to reduce distortion |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5319735A (en) * | 1991-12-17 | 1994-06-07 | Bolt Beranek And Newman Inc. | Embedded signalling |
US5940429A (en) * | 1997-02-25 | 1999-08-17 | Solana Technology Development Corporation | Cross-term compensation power adjustment of embedded auxiliary data in a primary data signal |
-
2002
- 2002-10-24 WO PCT/IB2002/004456 patent/WO2003042978A1/en active IP Right Grant
- 2002-10-24 EP EP02777654A patent/EP1449204B1/en not_active Expired - Lifetime
- 2002-10-24 JP JP2003544730A patent/JP4474161B2/ja not_active Expired - Lifetime
- 2002-10-24 KR KR10-2004-7007390A patent/KR20040058289A/ko not_active Application Discontinuation
- 2002-10-24 BR BR0206444-8A patent/BR0206444A/pt not_active IP Right Cessation
- 2002-10-24 US US10/495,537 patent/US7561688B2/en not_active Expired - Fee Related
- 2002-10-24 DE DE60208706T patent/DE60208706T2/de not_active Expired - Lifetime
- 2002-10-24 CN CNB028226208A patent/CN1308912C/zh not_active Expired - Fee Related
- 2002-10-24 AT AT02777654T patent/ATE315822T1/de not_active IP Right Cessation
- 2002-10-24 ES ES02777654T patent/ES2255626T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR20040058289A (ko) | 2004-07-03 |
DE60208706D1 (de) | 2006-04-06 |
JP4474161B2 (ja) | 2010-06-02 |
EP1449204A1 (en) | 2004-08-25 |
JP2005509907A (ja) | 2005-04-14 |
ES2255626T3 (es) | 2006-07-01 |
DE60208706T2 (de) | 2006-10-05 |
CN1308912C (zh) | 2007-04-04 |
ATE315822T1 (de) | 2006-02-15 |
WO2003042978A1 (en) | 2003-05-22 |
US7561688B2 (en) | 2009-07-14 |
US20050025314A1 (en) | 2005-02-03 |
CN1585971A (zh) | 2005-02-23 |
EP1449204B1 (en) | 2006-01-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 11A ANUIDADE. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2258 DE 15/04/2014. |