JP4504681B2 - 補助データを情報信号に埋め込む方法及びデバイス - Google Patents
補助データを情報信号に埋め込む方法及びデバイス Download PDFInfo
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- JP4504681B2 JP4504681B2 JP2003544746A JP2003544746A JP4504681B2 JP 4504681 B2 JP4504681 B2 JP 4504681B2 JP 2003544746 A JP2003544746 A JP 2003544746A JP 2003544746 A JP2003544746 A JP 2003544746A JP 4504681 B2 JP4504681 B2 JP 4504681B2
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- 238000000034 method Methods 0.000 title claims description 24
- 230000005236 sound signal Effects 0.000 claims description 24
- 230000008859 change Effects 0.000 claims description 11
- 230000001629 suppression Effects 0.000 claims description 6
- 230000002123 temporal effect Effects 0.000 claims description 3
- 230000002829 reductive effect Effects 0.000 claims description 2
- 230000006870 function Effects 0.000 description 47
- 230000000694 effects Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 206010021403 Illusion Diseases 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
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- 238000013459 approach Methods 0.000 description 1
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- 125000004122 cyclic group Chemical group 0.000 description 1
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- 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
- 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
-
- 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
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- Multimedia (AREA)
- Audiology, Speech & Language Pathology (AREA)
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- Computational Linguistics (AREA)
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Description
−前記情報信号の所定の特性が所定の閾値を越える位置を決定するステップと、
−前記補助データ信号を前記決定された位置の所定の近傍で抑制するステップと、
を有する方法によって解決される。
−前記情報信号の所定の特性が所定の閾値を越える位置を決定するための手段と、
−前記補助データ信号を前記決定された位置の所定の近傍で抑制するための手段と
を有する装置に関する。
−前記情報信号の所定の特性が所定の閾値を越える位置を決定するための手段と、
−前記補助データ信号を前記決定された位置の所定の近傍で抑制するための手段と、
を有する、デバイスに関する。
−前記情報信号の所定の特性が所定の閾値を越える位置を決定するステップと、
−前記補助データ信号を前記決定された位置の所定の近傍で抑制するステップと、
を有する方法によって調整された、情報信号に関する。
= x(n) + s・g(n)・wm(n)が得られる。
Claims (8)
- 情報信号に埋め込まれるべき補助データ信号を調整する方法において、
前記情報信号の所定の特性の時間軸における増加が所定の閾値を超える位置を決定するステップと、
前記補助データ信号を、決定された位置の所定の近傍で抑制する抑制ステップと
を有する方法。 - 前記所定の特性は振幅の変化である、請求項1に記載の方法。
- 前記情報信号は、信号サンプルの時間的シーケンスとして表され、前記抑制ステップは、前記決定された位置の前の第1の数のサンプルについて、及び、前記決定された位置の後の所定の第2の数のサンプルについて、前記補助データ信号を抑制するステップを有する、請求項1に記載の方法。
- 前記第2の数のサンプルは実質的にゼロである、請求項3に記載の方法。
- 前記抑制ステップは、テーパ関数を前記所定の近傍の境界で前記補助データ信号に適用するステップをさらに有し、前記テーパ関数は、前記決定された位置の前で減少する期間及び前記決定された位置の後で増加する期間を有する、請求項1に記載の方法。
- 前記テーパ関数はコサインテーパ関数である、請求項5に記載の方法。
- 前記情報信号はデジタルオーディオ信号を有する、請求項1に記載の方法。
- 補助データ信号を情報信号に埋め込むデバイスにおいて、当該デバイスは、情報信号に埋め込まれるべき補助データ信号を調整する装置を有し、該装置は、
前記情報信号の所定の特性の時間軸における増加が所定の閾値を超えた位置を決定する手段と、
前記補助データ信号を、決定された位置の所定の近傍で抑制する手段と
を有するデバイス。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01204386 | 2001-11-16 | ||
PCT/IB2002/004541 WO2003043003A2 (en) | 2001-11-16 | 2002-10-28 | Embedding supplementary data in an information signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005509908A JP2005509908A (ja) | 2005-04-14 |
JP4504681B2 true JP4504681B2 (ja) | 2010-07-14 |
Family
ID=8181249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003544746A Expired - Lifetime JP4504681B2 (ja) | 2001-11-16 | 2002-10-28 | 補助データを情報信号に埋め込む方法及びデバイス |
Country Status (7)
Country | Link |
---|---|
US (1) | US7639599B2 (ja) |
EP (1) | EP1449212B1 (ja) |
JP (1) | JP4504681B2 (ja) |
KR (1) | KR20040066814A (ja) |
CN (1) | CN100449628C (ja) |
BR (1) | BR0206446A (ja) |
WO (1) | WO2003043003A2 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9609278B2 (en) | 2000-04-07 | 2017-03-28 | Koplar Interactive Systems International, Llc | Method and system for auxiliary data detection and delivery |
US9711153B2 (en) | 2002-09-27 | 2017-07-18 | The Nielsen Company (Us), Llc | Activating functions in processing devices using encoded audio and detecting audio signatures |
US8959016B2 (en) | 2002-09-27 | 2015-02-17 | The Nielsen Company (Us), Llc | Activating functions in processing devices using start codes embedded in audio |
FR2846827B1 (fr) * | 2002-10-30 | 2005-02-25 | Inst Nat Rech Inf Automat | Dispositif pour le marquage et la restitution de signaux multimedia |
KR100624751B1 (ko) * | 2003-04-25 | 2006-09-19 | (주)마크텍 | 영상에 워터마크를 삽입하는 방법 및 상기 방법을 이용한디지털 비디오 저장장치 |
US7330511B2 (en) | 2003-08-18 | 2008-02-12 | Koplar Interactive Systems International, L.L.C. | Method and system for embedding device positional data in video signals |
GB2431837A (en) * | 2005-10-28 | 2007-05-02 | Sony Uk Ltd | Audio processing |
US20090111584A1 (en) | 2007-10-31 | 2009-04-30 | Koplar Interactive Systems International, L.L.C. | Method and system for encoded information processing |
JP5295372B2 (ja) * | 2008-09-17 | 2013-09-18 | フランス・テレコム | デジタルオーディオ信号におけるプリエコーの減衰 |
US8582781B2 (en) | 2009-01-20 | 2013-11-12 | Koplar Interactive Systems International, L.L.C. | Echo modulation methods and systems |
US8715083B2 (en) | 2009-06-18 | 2014-05-06 | Koplar Interactive Systems International, L.L.C. | Methods and systems for processing gaming data |
US9099080B2 (en) | 2013-02-06 | 2015-08-04 | Muzak Llc | System for targeting location-based communications |
ES2710518T3 (es) | 2013-11-28 | 2019-04-25 | Fundacio Per A La Univ Oberta De Catalunya | Procedimiento y aparato para integrar y extraer datos de marcas de agua en una señal de audio |
US20160294484A1 (en) * | 2015-03-31 | 2016-10-06 | Qualcomm Technologies International, Ltd. | Embedding codes in an audio signal |
KR102086047B1 (ko) * | 2015-12-11 | 2020-03-06 | 한국전자통신연구원 | 시간 영역을 기반으로 오디오 신호에 데이터를 삽입하거나 오디오 신호로부터 데이터를 추출하는 방법 및 장치 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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US531973A (en) * | 1895-01-01 | Conrad sciiraube and carl schmidt | ||
US5319735A (en) | 1991-12-17 | 1994-06-07 | Bolt Beranek And Newman Inc. | Embedded signalling |
US7720249B2 (en) * | 1993-11-18 | 2010-05-18 | Digimarc Corporation | Watermark embedder and reader |
US7113615B2 (en) * | 1993-11-18 | 2006-09-26 | Digimarc Corporation | Watermark embedder and reader |
CA2184949C (en) | 1995-09-28 | 2000-05-30 | Ingemar J. Cox | Secure spread spectrum watermarking for multimedia data |
US5956674A (en) * | 1995-12-01 | 1999-09-21 | Digital Theater Systems, Inc. | Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
JP3503434B2 (ja) * | 1996-07-31 | 2004-03-08 | 日本ビクター株式会社 | 著作権情報の埋め込み装置及び記録媒体 |
JPH10162501A (ja) * | 1996-12-03 | 1998-06-19 | Sony Corp | 音声情報伝送方法、音声情報伝送装置および音声記録装置 |
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 |
US6233347B1 (en) * | 1998-05-21 | 2001-05-15 | Massachusetts Institute Of Technology | System method, and product for information embedding using an ensemble of non-intersecting embedding generators |
US6400826B1 (en) * | 1998-05-21 | 2002-06-04 | Massachusetts Institute Of Technology | System, method, and product for distortion-compensated information embedding using an ensemble of non-intersecting embedding generators |
JP2000216981A (ja) * | 1999-01-25 | 2000-08-04 | Sony Corp | 電子透かし埋め込み方法および電子透かし埋め込み装置 |
-
2002
- 2002-10-28 KR KR10-2004-7007371A patent/KR20040066814A/ko not_active Application Discontinuation
- 2002-10-28 BR BR0206446-4A patent/BR0206446A/pt not_active IP Right Cessation
- 2002-10-28 WO PCT/IB2002/004541 patent/WO2003043003A2/en active Application Filing
- 2002-10-28 US US10/495,282 patent/US7639599B2/en active Active
- 2002-10-28 CN CNB028226623A patent/CN100449628C/zh not_active Expired - Lifetime
- 2002-10-28 JP JP2003544746A patent/JP4504681B2/ja not_active Expired - Lifetime
- 2002-10-28 EP EP02777709.3A patent/EP1449212B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2003043003A3 (en) | 2004-03-11 |
JP2005509908A (ja) | 2005-04-14 |
US20040257977A1 (en) | 2004-12-23 |
EP1449212B1 (en) | 2021-09-29 |
BR0206446A (pt) | 2003-12-30 |
CN100449628C (zh) | 2009-01-07 |
WO2003043003A2 (en) | 2003-05-22 |
KR20040066814A (ko) | 2004-07-27 |
EP1449212A2 (en) | 2004-08-25 |
US7639599B2 (en) | 2009-12-29 |
CN1596443A (zh) | 2005-03-16 |
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