BR112018012982A8 - aprimoramento em inserção de marca d´água transparente em áudio sem perdas - Google Patents

aprimoramento em inserção de marca d´água transparente em áudio sem perdas

Info

Publication number
BR112018012982A8
BR112018012982A8 BR112018012982A BR112018012982A BR112018012982A8 BR 112018012982 A8 BR112018012982 A8 BR 112018012982A8 BR 112018012982 A BR112018012982 A BR 112018012982A BR 112018012982 A BR112018012982 A BR 112018012982A BR 112018012982 A8 BR112018012982 A8 BR 112018012982A8
Authority
BR
Brazil
Prior art keywords
enhancement
lossless audio
quantization
modeled
noise
Prior art date
Application number
BR112018012982A
Other languages
English (en)
Other versions
BR112018012982A2 (pt
Inventor
Law Malcolm
Original Assignee
Law Malcolm
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 Law Malcolm filed Critical Law Malcolm
Publication of BR112018012982A2 publication Critical patent/BR112018012982A2/pt
Publication of BR112018012982A8 publication Critical patent/BR112018012982A8/pt

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
    • G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
    • 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • 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
    • G10L19/02—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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00282—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in the content area, e.g. program area, data area or user area
    • G11B20/00289—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in the content area, e.g. program area, data area or user area wherein the key is stored as a watermark

Abstract

métodos e dispositivos são descritos para inserção de marca d?água em um sinal de áudio sem perdas desempenhando-se uma quantização modelada como ruído e recortando a saída da quantização modelada como ruído em fronteiras computadas por um par de funções lineares quantizadas com gradiente 0,5 da entrada para a quantização modelada como ruído. métodos e dispositivos correspondentes são também descritos para inverter o processo para recuperar uma réplica exata do sinal de áudio original.
BR112018012982A 2015-12-23 2016-12-22 aprimoramento em inserção de marca d´água transparente em áudio sem perdas BR112018012982A8 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1522816.6A GB2546963B (en) 2015-12-23 2015-12-23 Transparent lossless audio watermarking enhancement
PCT/GB2016/054037 WO2017109498A1 (en) 2015-12-23 2016-12-22 Transparent lossless audio watermarking enhancement

Publications (2)

Publication Number Publication Date
BR112018012982A2 BR112018012982A2 (pt) 2018-12-04
BR112018012982A8 true BR112018012982A8 (pt) 2019-10-01

Family

ID=55311576

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112018012982A BR112018012982A8 (pt) 2015-12-23 2016-12-22 aprimoramento em inserção de marca d´água transparente em áudio sem perdas

Country Status (10)

Country Link
US (1) US10811017B2 (pt)
EP (2) EP3394855A1 (pt)
JP (1) JP7062590B2 (pt)
KR (1) KR20180097636A (pt)
CN (1) CN108475510A (pt)
AU (1) AU2016375996B2 (pt)
BR (1) BR112018012982A8 (pt)
CA (1) CA3009300A1 (pt)
GB (1) GB2546963B (pt)
WO (1) WO2017109498A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101902073B1 (ko) * 2016-10-31 2018-10-01 한국생산기술연구원 주조 공정용 진공 용해 장치 및 그 방법

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6944298B1 (en) * 1993-11-18 2005-09-13 Digimare Corporation Steganographic encoding and decoding of auxiliary codes in media signals
US6061793A (en) * 1996-08-30 2000-05-09 Regents Of The University Of Minnesota Method and apparatus for embedding data, including watermarks, in human perceptible sounds
US7940954B2 (en) * 2002-11-27 2011-05-10 Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Watermarking digital representations that have undergone lossy compression
KR100595202B1 (ko) * 2003-12-27 2006-06-30 엘지전자 주식회사 디지털 오디오 워터마크 삽입/검출 장치 및 방법
JP4796583B2 (ja) * 2004-10-20 2011-10-19 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 量子化雑音を低減する方法
DE102008009024A1 (de) * 2008-02-14 2009-08-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum synchronisieren von Mehrkanalerweiterungsdaten mit einem Audiosignal und zum Verarbeiten des Audiosignals
CN101271690B (zh) * 2008-05-09 2010-12-22 中国人民解放军重庆通信学院 保护音频数据的音频扩频水印处理方法
CN101286318A (zh) * 2008-05-22 2008-10-15 清华大学 Mpeg4 aac中数字水印实现方法
EP2544179A1 (en) * 2011-07-08 2013-01-09 Thomson Licensing Method and apparatus for quantisation index modulation for watermarking an input signal
GB2524424B (en) * 2011-10-24 2016-04-27 Graham Craven Peter Lossless buried data
GB201210373D0 (en) * 2012-06-12 2012-07-25 Meridian Audio Ltd Doubly compatible lossless audio sandwidth extension
GB2524784B (en) * 2014-04-02 2018-01-03 Law Malcolm Transparent lossless audio watermarking
US9858681B2 (en) * 2014-10-27 2018-01-02 Digimarc Corporation Signal detection, recognition and tracking with feature vector transforms

Also Published As

Publication number Publication date
CA3009300A1 (en) 2017-06-29
EP3394855A1 (en) 2018-10-31
JP2019504351A (ja) 2019-02-14
AU2016375996A1 (en) 2018-07-12
GB2546963B (en) 2020-10-21
CN108475510A (zh) 2018-08-31
US20190019523A1 (en) 2019-01-17
GB201522816D0 (en) 2016-02-03
AU2016375996B2 (en) 2022-02-17
GB2546963A (en) 2017-08-09
US10811017B2 (en) 2020-10-20
JP7062590B2 (ja) 2022-05-06
BR112018012982A2 (pt) 2018-12-04
EP4167234A1 (en) 2023-04-19
WO2017109498A1 (en) 2017-06-29
KR20180097636A (ko) 2018-08-31

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Legal Events

Date Code Title Description
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements