DE69431622D1 - Verfahren und gerät zum kodieren von mit mehreren bits kodiertem digitalem ton durch subtraktion eines adaptiven zittersignals, einfügen von versteckten kanalbits und filtrierung, sowie kodiergerät zur verwendung bei diesem verfahren - Google Patents
Verfahren und gerät zum kodieren von mit mehreren bits kodiertem digitalem ton durch subtraktion eines adaptiven zittersignals, einfügen von versteckten kanalbits und filtrierung, sowie kodiergerät zur verwendung bei diesem verfahrenInfo
- Publication number
- DE69431622D1 DE69431622D1 DE69431622T DE69431622T DE69431622D1 DE 69431622 D1 DE69431622 D1 DE 69431622D1 DE 69431622 T DE69431622 T DE 69431622T DE 69431622 T DE69431622 T DE 69431622T DE 69431622 D1 DE69431622 D1 DE 69431622D1
- Authority
- DE
- Germany
- Prior art keywords
- encoding
- subtracting
- adaptive
- filtering
- bits
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title 2
- 230000003044 adaptive effect Effects 0.000 title 1
- 238000001914 filtration Methods 0.000 title 1
- 230000008569 process Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Filters That Use Time-Delay Elements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93203652 | 1993-12-23 | ||
PCT/IB1994/000418 WO1995018523A1 (en) | 1993-12-23 | 1994-12-13 | Method and apparatus for encoding multibit coded digital sound through subtracting adaptive dither, inserting buried channel bits and filtering, and encoding and decoding apparatus for use with this method |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69431622D1 true DE69431622D1 (de) | 2002-12-05 |
DE69431622T2 DE69431622T2 (de) | 2003-06-26 |
Family
ID=8214237
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69431622T Expired - Lifetime DE69431622T2 (de) | 1993-12-23 | 1994-12-13 | Verfahren und gerät zum kodieren von mit mehreren bits kodiertem digitalem ton durch subtraktion eines adaptiven zittersignals, einfügen von versteckten kanalbits und filtrierung, sowie kodiergerät zur verwendung bei diesem verfahren |
Country Status (6)
Country | Link |
---|---|
US (1) | US5649054A (de) |
EP (1) | EP0691052B1 (de) |
JP (2) | JP3782103B2 (de) |
KR (1) | KR100518470B1 (de) |
DE (1) | DE69431622T2 (de) |
WO (1) | WO1995018523A1 (de) |
Families Citing this family (60)
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US6449377B1 (en) | 1995-05-08 | 2002-09-10 | Digimarc Corporation | Methods and systems for watermark processing of line art images |
US6757406B2 (en) | 1993-11-18 | 2004-06-29 | Digimarc Corporation | Steganographic image processing |
US6614914B1 (en) | 1995-05-08 | 2003-09-02 | Digimarc Corporation | Watermark embedder and reader |
US6122403A (en) | 1995-07-27 | 2000-09-19 | Digimarc Corporation | Computer system linked by using information in data objects |
US6983051B1 (en) | 1993-11-18 | 2006-01-03 | Digimarc Corporation | Methods for audio watermarking and decoding |
US7171016B1 (en) | 1993-11-18 | 2007-01-30 | Digimarc Corporation | Method for monitoring internet dissemination of image, video and/or audio files |
US6944298B1 (en) | 1993-11-18 | 2005-09-13 | Digimare Corporation | Steganographic encoding and decoding of auxiliary codes in media signals |
US6408082B1 (en) | 1996-04-25 | 2002-06-18 | Digimarc Corporation | Watermark detection using a fourier mellin transform |
US6611607B1 (en) | 1993-11-18 | 2003-08-26 | Digimarc Corporation | Integrating digital watermarks in multimedia content |
US5768426A (en) * | 1993-11-18 | 1998-06-16 | Digimarc Corporation | Graphics processing system employing embedded code signals |
US5748763A (en) | 1993-11-18 | 1998-05-05 | Digimarc Corporation | Image steganography system featuring perceptually adaptive and globally scalable signal embedding |
US6516079B1 (en) | 2000-02-14 | 2003-02-04 | Digimarc Corporation | Digital watermark screening and detecting strategies |
US6424725B1 (en) | 1996-05-16 | 2002-07-23 | Digimarc Corporation | Determining transformations of media signals with embedded code signals |
US20030056103A1 (en) * | 2000-12-18 | 2003-03-20 | Levy Kenneth L. | Audio/video commerce application architectural framework |
US6307949B1 (en) | 1996-05-07 | 2001-10-23 | Digimarc Corporation | Methods for optimizing watermark detection |
US6381341B1 (en) * | 1996-05-16 | 2002-04-30 | Digimarc Corporation | Watermark encoding method exploiting biases inherent in original signal |
KR100573627B1 (ko) | 1997-01-27 | 2006-11-10 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 기록된신호의복사방지용시스템 |
US6012031A (en) * | 1997-09-24 | 2000-01-04 | Sony Corporation | Variable-length moving-average filter |
JP3022462B2 (ja) * | 1998-01-13 | 2000-03-21 | 興和株式会社 | 振動波の符号化方法及び復号化方法 |
US6792542B1 (en) | 1998-05-12 | 2004-09-14 | Verance Corporation | Digital system for embedding a pseudo-randomly modulated auxiliary data sequence in digital samples |
US6442283B1 (en) * | 1999-01-11 | 2002-08-27 | Digimarc Corporation | Multimedia data embedding |
US6233552B1 (en) * | 1999-03-12 | 2001-05-15 | Comsat Corporation | Adaptive post-filtering technique based on the Modified Yule-Walker filter |
AUPQ122699A0 (en) * | 1999-06-25 | 1999-07-22 | Lake Dsp Pty Limited | Sigma delta modulator with buried data |
IL142086A0 (en) * | 1999-07-20 | 2002-03-10 | Koninkl Philips Electronics Nv | Record carrier carrying a stereo signal and data signal |
DE69932861T2 (de) * | 1999-10-30 | 2007-03-15 | Stmicroelectronics Asia Pacific Pte Ltd. | Verfahren zur kodierung eines audiosignals mit einem qualitätswert für bit-zuordnung |
CN1331144C (zh) * | 1999-12-21 | 2007-08-08 | 皇家菲利浦电子有限公司 | 将一个第一数字信息信号嵌入第二数字信息信号中以通过一个传输介质传输 |
US7043312B1 (en) * | 2000-02-17 | 2006-05-09 | Sonic Solutions | CD playback augmentation for higher resolution and multi-channel sound |
US7149592B2 (en) * | 2000-02-18 | 2006-12-12 | Intervideo, Inc. | Linking internet documents with compressed audio files |
JP2002076898A (ja) * | 2000-08-25 | 2002-03-15 | Nippon Precision Circuits Inc | ノイズシェーパ |
US6674876B1 (en) | 2000-09-14 | 2004-01-06 | Digimarc Corporation | Watermarking in the time-frequency domain |
WO2002025662A1 (en) * | 2000-09-20 | 2002-03-28 | Koninklijke Philips Electronics N.V. | Distribution of content |
US20020060605A1 (en) * | 2000-09-22 | 2002-05-23 | Kowkutla Venkateswar R. | Amplifiers |
US8050452B2 (en) * | 2001-03-22 | 2011-11-01 | Digimarc Corporation | Quantization-based data embedding in mapped data |
US7376242B2 (en) * | 2001-03-22 | 2008-05-20 | Digimarc Corporation | Quantization-based data embedding in mapped data |
JP2002311975A (ja) * | 2001-04-16 | 2002-10-25 | Sony Corp | 記録方法、記録装置、再生方法及び再生装置 |
US7006662B2 (en) * | 2001-12-13 | 2006-02-28 | Digimarc Corporation | Reversible watermarking using expansion, rate control and iterative embedding |
EP1523863A1 (de) * | 2002-07-16 | 2005-04-20 | Koninklijke Philips Electronics N.V. | Audio-kodierung |
US7590251B2 (en) * | 2003-03-21 | 2009-09-15 | D2Audio Corporation | Clip detection in PWM amplifier |
US20060198557A1 (en) * | 2003-04-08 | 2006-09-07 | Van De Kerkhof Leon M | Fragile audio watermark related to a buried data channel |
US7929718B1 (en) | 2003-05-12 | 2011-04-19 | D2Audio Corporation | Systems and methods for switching and mixing signals in a multi-channel amplifier |
US7460684B2 (en) * | 2003-06-13 | 2008-12-02 | Nielsen Media Research, Inc. | Method and apparatus for embedding watermarks |
EP1914723B1 (de) * | 2004-05-19 | 2010-07-07 | Panasonic Corporation | Audiosignalkodierer und Audiosignaldekodierer |
CN102592638A (zh) * | 2004-07-02 | 2012-07-18 | 尼尔逊媒介研究股份有限公司 | 用于进行压缩数字位流的混合的方法及装置 |
US7315264B2 (en) * | 2006-01-17 | 2008-01-01 | D2Audio Corporation | Systems and methods for controlling transient response in the output of a noise shaper |
WO2008045950A2 (en) | 2006-10-11 | 2008-04-17 | Nielsen Media Research, Inc. | Methods and apparatus for embedding codes in compressed audio data streams |
US20080167879A1 (en) * | 2006-10-16 | 2008-07-10 | Du Bois Denis D | Speech delimiting processing system and method |
US8054969B2 (en) * | 2007-02-15 | 2011-11-08 | Avaya Inc. | Transmission of a digital message interspersed throughout a compressed information signal |
WO2009088886A2 (en) | 2007-12-31 | 2009-07-16 | Intersil Americas Inc. | Systems and methods for improved over-current clipping |
GB2466669B (en) * | 2009-01-06 | 2013-03-06 | Skype | Speech coding |
GB2466672B (en) * | 2009-01-06 | 2013-03-13 | Skype | Speech coding |
GB2466670B (en) * | 2009-01-06 | 2012-11-14 | Skype | Speech encoding |
GB2466671B (en) | 2009-01-06 | 2013-03-27 | Skype | Speech encoding |
GB2466674B (en) | 2009-01-06 | 2013-11-13 | Skype | Speech coding |
GB2466673B (en) | 2009-01-06 | 2012-11-07 | Skype | Quantization |
GB2466675B (en) * | 2009-01-06 | 2013-03-06 | Skype | Speech coding |
US8452606B2 (en) * | 2009-09-29 | 2013-05-28 | Skype | Speech encoding using multiple bit rates |
US8494180B2 (en) * | 2010-01-08 | 2013-07-23 | Intersil Americas Inc. | Systems and methods to reduce idle channel current and noise floor in a PWM amplifier |
US8594167B2 (en) * | 2010-08-25 | 2013-11-26 | Indian Institute Of Science | Determining spectral samples of a finite length sequence at non-uniformly spaced frequencies |
JPWO2014141413A1 (ja) * | 2013-03-13 | 2017-02-16 | 株式会社東芝 | 情報処理装置、出力方法およびプログラム |
GB2524784B (en) * | 2014-04-02 | 2018-01-03 | Law Malcolm | Transparent lossless audio watermarking |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5185800A (en) * | 1989-10-13 | 1993-02-09 | Centre National D'etudes Des Telecommunications | Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion |
CA2110182C (en) * | 1991-05-29 | 2005-07-05 | Keith O. Johnson | Electronic signal encoding and decoding |
GB2257606B (en) * | 1991-06-28 | 1995-01-18 | Sony Corp | Recording and/or reproducing apparatuses and signal processing methods for compressed data |
FI89439C (fi) * | 1991-10-30 | 1993-09-27 | Salon Televisiotehdas Oy | Foerfarande foer att dekoda en audiosignal i vilken annan information aer infoerd med anvaendning av maskningseffekt |
GB9216659D0 (en) * | 1992-08-05 | 1992-09-16 | Gerzon Michael A | Subtractively dithered digital waveform coding system |
GB9302982D0 (en) * | 1993-02-15 | 1993-03-31 | Gerzon Michael A | Data transmission method in digital waveform signal words |
JP3396512B2 (ja) * | 1993-08-31 | 2003-04-14 | パイオニア株式会社 | ディザ生成装置 |
-
1994
- 1994-12-13 JP JP51787295A patent/JP3782103B2/ja not_active Expired - Lifetime
- 1994-12-13 KR KR1019950703544A patent/KR100518470B1/ko not_active IP Right Cessation
- 1994-12-13 DE DE69431622T patent/DE69431622T2/de not_active Expired - Lifetime
- 1994-12-13 EP EP95901577A patent/EP0691052B1/de not_active Expired - Lifetime
- 1994-12-13 WO PCT/IB1994/000418 patent/WO1995018523A1/en active IP Right Grant
- 1994-12-21 US US08/361,083 patent/US5649054A/en not_active Expired - Lifetime
-
2006
- 2006-01-25 JP JP2006016429A patent/JP2006139306A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE69431622T2 (de) | 2003-06-26 |
JPH08507391A (ja) | 1996-08-06 |
EP0691052A1 (de) | 1996-01-10 |
EP0691052B1 (de) | 2002-10-30 |
WO1995018523A1 (en) | 1995-07-06 |
US5649054A (en) | 1997-07-15 |
JP2006139306A (ja) | 2006-06-01 |
JP3782103B2 (ja) | 2006-06-07 |
KR100518470B1 (ko) | 2005-12-27 |
KR960701518A (ko) | 1996-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |