DE60213394D1 - Audiokodierung mit partieller enkryption - Google Patents

Audiokodierung mit partieller enkryption

Info

Publication number
DE60213394D1
DE60213394D1 DE60213394T DE60213394T DE60213394D1 DE 60213394 D1 DE60213394 D1 DE 60213394D1 DE 60213394 T DE60213394 T DE 60213394T DE 60213394 T DE60213394 T DE 60213394T DE 60213394 D1 DE60213394 D1 DE 60213394D1
Authority
DE
Germany
Prior art keywords
values
linked
signal
components
tracks
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
Application number
DE60213394T
Other languages
English (en)
Other versions
DE60213394T2 (de
Inventor
W Oomen
De Kerkhof M Van
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pendragon Wireless LLC
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE60213394D1 publication Critical patent/DE60213394D1/de
Application granted granted Critical
Publication of DE60213394T2 publication Critical patent/DE60213394T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
    • H04L9/16—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms the keys or algorithms being changed during operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
DE60213394T 2001-04-18 2002-04-09 Audiokodierung mit partieller enkryption Expired - Lifetime DE60213394T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP01201405 2001-04-18
EP01201405 2001-04-18
PCT/IB2002/001281 WO2002087241A1 (en) 2001-04-18 2002-04-09 Audio coding with partial encryption

Publications (2)

Publication Number Publication Date
DE60213394D1 true DE60213394D1 (de) 2006-09-07
DE60213394T2 DE60213394T2 (de) 2007-08-23

Family

ID=8180170

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60213394T Expired - Lifetime DE60213394T2 (de) 2001-04-18 2002-04-09 Audiokodierung mit partieller enkryption

Country Status (10)

Country Link
US (1) US7319756B2 (de)
EP (1) EP1382202B1 (de)
JP (1) JP4391088B2 (de)
KR (1) KR100927842B1 (de)
CN (1) CN1274153C (de)
AT (1) ATE334556T1 (de)
BR (1) BR0204835A (de)
DE (1) DE60213394T2 (de)
ES (1) ES2266481T3 (de)
WO (1) WO2002087241A1 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003281128A1 (en) * 2002-07-16 2004-02-02 Koninklijke Philips Electronics N.V. Audio coding
FR2845543B1 (fr) * 2002-10-03 2005-02-04 Medialive Systeme d'embrouillage securise de flux audio
US7764791B2 (en) * 2002-10-03 2010-07-27 Daniel Lecomte Method for secured transmission of audiovisual files
US7630492B2 (en) * 2002-10-03 2009-12-08 Daniel Lecomte Secure audio stream scramble system
FR2849980B1 (fr) * 2003-01-15 2005-04-08 Medialive Procede pour la distribution de sequences video, decodeur et systeme pour la mise en oeuvre de ce prodede
FR2853786B1 (fr) * 2003-04-11 2005-08-05 Medialive Procede et equipement de distribution de produits videos numeriques avec une restriction de certains au moins des droits de representation et de reproduction
FR2854531B1 (fr) * 2003-05-02 2007-01-05 Medialive Procede et systeme pour securiser l'embrouillage, le desembrouillage et la distribution de sequences visuelles vectorielles
EP1642265B1 (de) * 2003-06-30 2010-10-27 Koninklijke Philips Electronics N.V. Verbesserung der qualität von dekodierten audio mittels hinzufügen von geräusch
CN1849649A (zh) * 2003-09-09 2006-10-18 皇家飞利浦电子股份有限公司 瞬态音频信号分量的编码
US8472792B2 (en) 2003-12-08 2013-06-25 Divx, Llc Multimedia distribution system
US7519274B2 (en) 2003-12-08 2009-04-14 Divx, Inc. File format for multiple track digital data
EP1851752B1 (de) * 2005-02-10 2016-09-14 Koninklijke Philips N.V. Schallsynthese
JP4739338B2 (ja) * 2005-04-13 2011-08-03 株式会社エヌ・ティ・ティ・ドコモ 動画像符号化装置、動画像復号装置、動画像符号化方法、動画像復号方法、動画像符号化プログラム、および動画像復号プログラム
BRPI0707135A2 (pt) * 2006-01-18 2011-04-19 Lg Electronics Inc. aparelho e método para codificação e decodificação de sinal
JP5200204B2 (ja) 2006-03-14 2013-06-05 ディブエックス リミテッド ライアビリティー カンパニー 高信頼性システムを含む連合型デジタル権限管理機構
KR100836942B1 (ko) * 2006-04-18 2008-06-12 프레스티지전자 주식회사 음성신호의 인크립션/디크립션 방법과 이를 위한 장치
US20080101711A1 (en) * 2006-10-26 2008-05-01 Antonius Kalker Rendering engine for forming an unwarped reproduction of stored content from warped content
EP1921608A1 (de) * 2006-11-13 2008-05-14 Electronics And Telecommunications Research Institute Verfahren für die Einfügung von Vektorinformationen zum Schätzen von Sprachdaten in der Phase der Neusynchronisierung von Schlüsseln, Verfahren zum Übertragen von Vektorinformationen und Verfahren zum Schätzen der Sprachdaten bei der Neusynchronisierung von Schlüsseln unter Verwendung der Vektorinformationen
WO2008086313A1 (en) 2007-01-05 2008-07-17 Divx, Inc. Video distribution system including progressive playback
KR20080073925A (ko) * 2007-02-07 2008-08-12 삼성전자주식회사 파라메트릭 부호화된 오디오 신호를 복호화하는 방법 및장치
KR101317269B1 (ko) 2007-06-07 2013-10-14 삼성전자주식회사 정현파 오디오 코딩 방법 및 장치, 그리고 정현파 오디오디코딩 방법 및 장치
KR101346771B1 (ko) * 2007-08-16 2013-12-31 삼성전자주식회사 심리 음향 모델에 따른 마스킹 값보다 작은 정현파 신호를효율적으로 인코딩하는 방법 및 장치, 그리고 인코딩된오디오 신호를 디코딩하는 방법 및 장치
KR101410230B1 (ko) 2007-08-17 2014-06-20 삼성전자주식회사 종지 정현파 신호와 일반적인 연속 정현파 신호를 다른방식으로 처리하는 오디오 신호 인코딩 방법 및 장치와오디오 신호 디코딩 방법 및 장치
WO2009065137A1 (en) 2007-11-16 2009-05-22 Divx, Inc. Hierarchical and reduced index structures for multimedia files
JP5730860B2 (ja) * 2009-05-19 2015-06-10 エレクトロニクス アンド テレコミュニケーションズ リサーチ インスチチュートＥｌｅｃｔｒｏｎｉｃｓ Ａｎｄ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ 階層型正弦波パルスコーディングを用いるオーディオ信号の符号化及び復号化方法及び装置
EP2507995A4 (de) 2009-12-04 2014-07-09 Sonic Ip Inc Systeme und verfahren zum transport eines kryptographischen materials für elementare bitströme
US9247312B2 (en) 2011-01-05 2016-01-26 Sonic Ip, Inc. Systems and methods for encoding source media in matroska container files for adaptive bitrate streaming using hypertext transfer protocol
US9467708B2 (en) 2011-08-30 2016-10-11 Sonic Ip, Inc. Selection of resolutions for seamless resolution switching of multimedia content
US8806188B2 (en) 2011-08-31 2014-08-12 Sonic Ip, Inc. Systems and methods for performing adaptive bitrate streaming using automatically generated top level index files
US8909922B2 (en) 2011-09-01 2014-12-09 Sonic Ip, Inc. Systems and methods for playing back alternative streams of protected content protected using common cryptographic information
EP2933797B1 (de) * 2012-12-17 2016-09-07 Panasonic Intellectual Property Management Co., Ltd. Informationsverarbeitungsvorrichtung und steuerungsverfahren
US9191457B2 (en) 2012-12-31 2015-11-17 Sonic Ip, Inc. Systems, methods, and media for controlling delivery of content
US9313510B2 (en) 2012-12-31 2016-04-12 Sonic Ip, Inc. Use of objective quality measures of streamed content to reduce streaming bandwidth
KR20190097320A (ko) 2015-01-06 2019-08-20 디브이엑스, 엘엘씨 디바이스들간에 콘텐트를 인코딩 및 공유하기 위한 시스템들 및 방법들

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232194A (en) * 1979-03-16 1980-11-04 Ocean Technology, Inc. Voice encryption system
US4612414A (en) * 1983-08-31 1986-09-16 At&T Information Systems Inc. Secure voice transmission
CN1062963C (zh) * 1990-04-12 2001-03-07 多尔拜实验特许公司 用于产生高质量声音信号的解码器和编码器
US5243653A (en) * 1992-05-22 1993-09-07 Motorola, Inc. Method and apparatus for maintaining continuous synchronous encryption and decryption in a wireless communication system throughout a hand-off
DK46493D0 (da) * 1993-04-22 1993-04-22 Frank Uldall Leonhard Metode for signalbehandling til bestemmelse af transientforhold i auditive signaler
JP3496411B2 (ja) * 1996-10-30 2004-02-09 ソニー株式会社 情報符号化方法及び復号化装置
US5886276A (en) * 1997-01-16 1999-03-23 The Board Of Trustees Of The Leland Stanford Junior University System and method for multiresolution scalable audio signal encoding
DE19730130C2 (de) * 1997-07-14 2002-02-28 Fraunhofer Ges Forschung Verfahren zum Codieren eines Audiosignals
DE19747132C2 (de) * 1997-10-24 2002-11-28 Fraunhofer Ges Forschung Verfahren und Vorrichtungen zum Codieren von Audiosignalen sowie Verfahren und Vorrichtungen zum Decodieren eines Bitstroms
CA2329315A1 (en) * 1998-04-21 1999-10-28 Solana Technology Development Corporation Multimedia adaptive scrambling system (mass)
US6888943B1 (en) * 1998-04-21 2005-05-03 Verance Corporation Multimedia adaptive scrambling system (MASS)
JO2117B1 (en) * 1998-07-15 2000-05-21 كانال + تيكنولوجيز سوسيته انونيم A method and device for the secure communication of information between a group of audio-visual devices that operate with numbers
US6266644B1 (en) * 1998-09-26 2001-07-24 Liquid Audio, Inc. Audio encoding apparatus and methods
DE19907964C1 (de) * 1999-02-24 2000-08-10 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Erzeugen eines verschlüsselten Datenstroms und Vorrichtung und Verfahren zum Erzeugen eines entschlüsselten Audio- und/oder Videosignals
DE60001904T2 (de) 1999-06-18 2004-05-19 Koninklijke Philips Electronics N.V. Audio-übertragungssystem mit verbesserter kodiereinrichtung
US7085377B1 (en) * 1999-07-30 2006-08-01 Lucent Technologies Inc. Information delivery in a multi-stream digital broadcasting system
WO2001069593A1 (en) * 2000-03-15 2001-09-20 Koninklijke Philips Electronics N.V. Laguerre fonction for audio coding
US20020076049A1 (en) * 2000-12-19 2002-06-20 Boykin Patrick Oscar Method for distributing perceptually encrypted videos and decypting them
US6845359B2 (en) * 2001-03-22 2005-01-18 Motorola, Inc. FFT based sine wave synthesis method for parametric vocoders

Also Published As

Publication number Publication date
JP4391088B2 (ja) 2009-12-24
CN1463547A (zh) 2003-12-24
JP2004531761A (ja) 2004-10-14
WO2002087241A1 (en) 2002-10-31
US20020154774A1 (en) 2002-10-24
EP1382202A1 (de) 2004-01-21
ATE334556T1 (de) 2006-08-15
EP1382202B1 (de) 2006-07-26
BR0204835A (pt) 2003-06-10
DE60213394T2 (de) 2007-08-23
KR100927842B1 (ko) 2009-11-23
CN1274153C (zh) 2006-09-06
KR20030010702A (ko) 2003-02-05
US7319756B2 (en) 2008-01-15
ES2266481T3 (es) 2007-03-01

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Owner name: IPG ELECTRONICS 503 LTD., ST. PETER PORT, GUER, GB

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