CN1173957A - 标记视频和/或音频信号 - Google Patents

标记视频和/或音频信号 Download PDF

Info

Publication number
CN1173957A
CN1173957A CN96191886A CN96191886A CN1173957A CN 1173957 A CN1173957 A CN 1173957A CN 96191886 A CN96191886 A CN 96191886A CN 96191886 A CN96191886 A CN 96191886A CN 1173957 A CN1173957 A CN 1173957A
Authority
CN
China
Prior art keywords
signal
value
component
described component
video
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.)
Granted
Application number
CN96191886A
Other languages
English (en)
Other versions
CN1123221C (zh
Inventor
G·C·维尔茨
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.)
Koninklijke Philips NV
Original Assignee
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 Philips Electronics NV filed Critical Philips Electronics NV
Publication of CN1173957A publication Critical patent/CN1173957A/zh
Application granted granted Critical
Publication of CN1123221C publication Critical patent/CN1123221C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0064—Image watermarking for copy protection or copy management, e.g. CGMS, copy only once, one-time copy
    • 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
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • 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
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00586—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium
    • G11B20/00601—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the physical format of the recording medium wherein properties of tracks are altered, e.g., by changing the wobble pattern or the track pitch, or by adding interruptions or eccentricity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91321—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a copy protection control signal, e.g. a record inhibit signal

Abstract

一种标记视频或音频信号的方法和装置,用于把密级赋予所述的信号,例如识别该信号是可靠的以及不可复制的。该信号至少包括根据预定标准(MPEG,PAC,NTSC)的两个分量(Y,UV)。根据本发明,两个值赋予一般不产组合的所述分量,例如在黑色图象部分中Y、U和V都为零,U和V现在故意为非零以构成水印。电视接收机仍然显示所述的黑色部分。当该信号被重新编码并复制在可记录盘上时水印不会丢失。因为水印不再与新盘的“摆动密钥”对应,所以重放机将不能重现该复制。

Description

标记视频和/或音频信号
本发明涉及一种用于标记视频或音频信号的方法和装置。本发明还涉及一种用于解码所述的标记信号的方法和装置，以及在其上记录所述的标记信号的记录介质。
在WO93/00769和EP-A0518616中公开了标记视频信号的公知方法。该公知方法改进了在重放时图象中引入某种干扰的视频信号。通过把数据加到信号来标记视频信号的方法也属公知。一种方法是在垂直消隐期间提供数据；另一种方法是通过由在显象管的前面的光电二极管检测的白色和黑色点的序列来消除矩形图象部分和替代所述的图象部分。
现今，标记-信号的主题特别适合于数字视频盘的复制保护。最理想的是提供带有可检测码的(“水印”)信号，以便对信号进行可靠性识别并使该信号只在特定条件下复制才会可能。视频盘重放机可设计只适用于重放经验证的视频盘。如果视频信号的水印实际上与嵌入盘的指定槽中而不提供在可记录盘上的一代码(“摆动密钥”)相对应，则它们仅重现记录的程序内容。
上面所述的现有技术的内容是不适合于实现本任务的。它们根据民用装置的不同类型的不同同步特性，使得用户可以消除水印，或具有嵌入标记会影响显示信号的缺点。
本发明的目的是标记一信号而在重现时信号中没有引入明显的干扰。
根据本发明，标记至少包括根据预定标准的两个分量的视频和/或音频信号的方法，其特征在于当根据所述标准产生信号时采用把一值赋予不产生组合的所述分量的步骤。
本发明利用在产生实信号时从不产生分量值的特殊组合的特性。通过故意引入不违反相关标准的所述组合，可对信号如此赋予密级，使得该密级可由特殊检测装置加以检测。
通常，一般不会出现的分量值的赋值会在屏幕上产生明显的干扰。这是本发明实施例中要防止的，其中赋值步骤包括改进在信号部分中的第一所述分量，该信号部分中第二所述分量假设一值，对于此值第一所述分量是冗余的。
第一和第二分量分别构成视频信号的色度和亮度分量。本发明的最佳实施例其特征在于，预定非零色度值被赋予亮度值基本上为零的信号部分。当用标准(PAL或NTSC)编码器编码时，黑色信号部分具有零亮度或零色度分量。然而，与非零色度值相组合的零亮度值没有被相关电视标准禁止。通过在黑色部分中引入非零色度值，该信号就能进行标记。通过检查亮度和色度值就可容易地检测该标记。标准电视装置(接收机，记录器)就可照这样处理黑色信号部分。
当事先不知道视频信号是否及何处包括黑色信号部分时，设想去消除帧或场的上或下视频行之一，并把该方法应用到所述视频行。对于所述行的持续时间，多个连续色度周期可一起构成二进制水印码。
今后，视频程序可以数字格式存贮在盘上。对在特别是MPEGZ编码视频信号中的数字信号做水印的方法在尚未公开的欧洲专利申请95202673.0中已被提出。然而，将数字信号做水印对防止非法复制数字视频盘的复杂问题是不能完全得以解决的。任何记录的数字信号最后可解码成被电视接收机显示的模拟格式。解码之后，数字水印丢失。谁也不能防止用户重新编码模拟信号为数字(MPEG2)信号并将它存贮在可记录盘上。现在，该盘包括一个没有水印的信号。这一信号尤其不能与主图象区分开。
根据本发明的方法在应用于待记录到可靠视盘的信号之时，它具有不丢失水印的重量优点。构成水印的零亮度和非零色度值的特殊组合是优先地适用于MPEG编码器(它们的存在仅稍影响编码效率)。视频盘重放机被安排成检查相对于盘的摆动密钥嵌入的水印，如果信号的验证被确认则该机就重现信号。然而，如果用户重新编码重现的模拟信号并把该编码信号记录在不同的可记录盘上，水印就被保留而不再与新盘的摆动密钥相对应。因此，视频盘重放机将不能重现这样制造的复制盘。
图1和图2表示根据本发明用于标记信号的装置的实施例。
图3表示根据本发明用于检测标记的视频和/或音频信号的装置。
图1表示根据本发明用于标记视频和/或音频信号的装置的一个实施例。在该图中，标号1表示以亮度分量Y和两个色度分量U和V的形式产生传统视频信号的视频信号源。亮度分量Y被加到传统的视频编码器2，色度分量经各自的改进级3和4(在本发明中是加法器)加到所述的编码器。视频编码器2把信号分量Y和改进的色度分量U′和V′编码成和给定标准例如PAL/NTSC/SECAM(模拟)或JPEG/MPEG(数字)一致的待传输的复合信号。
该装置还包括黑色亮度检测器5，如果亮度值Y基本上为零，即如果相应图象区是黑色的，它就产生控制信号Y＝0。该控制信号Y＝0加到标记发生器6，它响应控制信号产生预定非零信号值U和V。值U和V分别由加法器3和4加到色度分量U和V。对于固有视频信号源内容，来自视频信号源1的信号分量Y、U和V在黑色图象区都为零。该装置设定视频编码器2，在所述区域编码Y′＝0，U′＝u≠0，和V′＝v≠0。对于非黑色图象区，标记发生器6不起作用，并且视频编码器按传统的装置编码Y′＝Y，U′＝U和V′＝V。
图1中所示的装置取决于在图象中黑色信号部分的存在。图2表示强制图象的预定信号部分变成黑色的装置的另一实施例。图2也说明改进级3和4(图1中为加法器)可以是开关。图2中所示的装置工作如下：当预定信号部分(例如第一或最末有效视频行或其部分)期间，标记发生器6控制开关8以把亮度值Y＝0加到视频编码器和同时控制开关3和4以提供非零色度值U＝u和V＝v。预定信号部分由定时电路7来确定，该定时电路7从视频源接收普通的同步信号S和当标记发生器6运行时产生确定时间周期的定时信号SP。
由上面描述的装置产生的信号能被传统的装置重现。实验已表明，黑色部分将照这样显示。因而，诸如视频盘重放机之类的装置能被设计成仅在特殊条件下，例如，如果该信号已经记录在具有特定“摆动槽”的视频盘的情况下重现水印的信号。本发明的重要优点在于，该水印在不具有这种摆动槽的可记录盘上重新编码和复制信号时是不会丢失的。因此，重放机将不能从这种可记录盘上重现信号。
图3表示根据本发明用于检测标记的视频和或音频信号的装置。该装置包括传统的模拟(例如PAL/NTSC/SECAM)或数字(例如MPEG)解码器11，解码亮度分量Y和色度分量U和V。这些分量加到各自的零检测器12、13和14，如果相关分量基本上为零，则产生二进制信号“1”。如果亮度分量Y基本上为零和色度分量U和V基本上都不为零，组合逻辑电路15产生输出信号M。因为这种分量值的组合在固有摄像机中不可能产生，所以输出信号M表示视频信号已被标记并只能在特定条件下进行重现。
总之，用于标记视频或音频信号的方法和装置被公开了，用于把密级赋予所述信号，例如识别该信号是可靠的和不可复制的。根据预定标准(MPEG，PAL，NTSC)该信号至少包括两个分量CY，UV(。根据本发明，数值被赋予不能产生组合的所述分量。例如，在黑色部分中Y，U和V都为零，现在故意使U和/或V为非零来构成水印。电视接收机仍然显示所述的黑色部分。当信号在可记录盘上重新编码和复制时水印不会丢失。因为水印不再与新盘的“摆动密钥”相对应，所以重放机就不能进行重现。

Claims (16)

1.一种标记至少包括根据预定标准的两个分量的视频和/或音频信号的方法，其特征在于当根据所述标准产生信号时采用把一值赋于不产生组合的所述分量的步骤。
2.根据权利要求1所述的方法，其中赋值步骤包括改进在信号部分中的第一所述分量，该信号部分中第二所述分量假设为一值，对于此值第一所述分量是冗余的。
3.根据权利要求2所述的方法，其中第一和第二分量分别构成视频信号的色度和亮度分量，其特征在于，将预定非零色度值赋予信号部分，对于该部分亮度值基本上为零。
4.一种检测至少包括根据预定编码标准的两个分量的视频信号的方法，其特征在于，确定组合中各自分量值是否可产生在根据所述标准的一信号中的步骤，和响应所述确定步骤产生标记输出信号的步骤。
5.根据权利要求4所述的方法，其中确定步骤包括：确定所述的分量之一是否假设一值，对于此值第一所述分量是冗余的。
6.根据权利要求5所述的方法，其中所述的分量分别构成视频信号的色度和亮度分量，其特征在于，确定亮度值基本上为零的信号部分是否与非零色度值有关。
7.一种用于标记至少包括根据预定标准的两个分量的视频和/或音频的方法，其特征在于，当根据所述标准产生信号时采用把一值赋予不产生组合的所述分量的装置。
8.根据权利要求7所述的装置，其中把一值赋予所述分量的装置包括改进在信号部分中的第一所述分量的装置，在该信号部分中第二所述分量假设一值，对于此值第一所述分量是冗余的。
9.根据权利要求8所述的装置，其中第一和第二分量分别构成视频信号的色度和亮度分量，其特征在于，采用把预定非零色度值赋予信号部分的装置，对于此信号部分亮度值基本上为零。
10.一种用于检测至少包括根据预定标准的两个分量的标记视频信号的装置，其特征在于，采用确定组合的各自分量值是否产生在根据所述标准的信号中的装置，和响应所述确定装置产生标记输出信号的装置。
11.根据权利要求10所述的装置，其中确定装置适合于确定所述分量之一是否假设一值，对于此值第一所述分量是冗余的。
12.根据权利要求11所述的装置，其中所述的分量分别构成视频信号的色度和亮度分量，其特征在于，用于确定亮度值基本上为零的信号部分是否与非零色度值有关。
13.一种视频或音频信号至少包括根据预定标准的两个分量、它被标记以把密级赋予所述的信号，其特征在于，具有当根据所述标准的信号用编码器编码时，把一值赋予不产生组合的所述分量。
14.根据权利要求13所述的信号，其中改进在信号部分中的第一所述分量，该信号部分中第二所述分量假设一值，对于此值第一所述分量为冗余的。
15.根据权利要求14所述的信号，其中第一和第二分量分别构成视频信号的色度和亮度分量，其特征在于，预定非零色度值赋予信号部分，对于此信号部分亮度值基本上为零。
16.根据权利要求13～15的任一个权利要求所述的信号被存贮在其上的一种存贮介质。
CN96191886A 1995-12-11 1996-11-27 标记视频和/或音频信号 Expired - Fee Related CN1123221C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP95203432.0 1995-12-11
EP95203432 1995-12-11

Publications (2)

Publication Number Publication Date
CN1173957A true CN1173957A (zh) 1998-02-18
CN1123221C CN1123221C (zh) 2003-10-01

Family

ID=8220927

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96191886A Expired - Fee Related CN1123221C (zh) 1995-12-11 1996-11-27 标记视频和/或音频信号

Country Status (7)

Country Link
US (1) US5940134A (zh)
EP (1) EP0808541B1 (zh)
JP (1) JPH11500892A (zh)
KR (1) KR100462915B1 (zh)
CN (1) CN1123221C (zh)
DE (1) DE69609163T2 (zh)
WO (1) WO1997022206A1 (zh)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6122403A (en) 1995-07-27 2000-09-19 Digimarc Corporation Computer system linked by using information in data objects
US6516079B1 (en) * 2000-02-14 2003-02-04 Digimarc Corporation Digital watermark screening and detecting strategies
US7362775B1 (en) 1996-07-02 2008-04-22 Wistaria Trading, Inc. Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management
US5613004A (en) 1995-06-07 1997-03-18 The Dice Company Steganographic method and device
US6205249B1 (en) 1998-04-02 2001-03-20 Scott A. Moskowitz Multiple transform utilization and applications for secure digital watermarking
US7664263B2 (en) 1998-03-24 2010-02-16 Moskowitz Scott A Method for combining transfer functions with predetermined key creation
US7177429B2 (en) 2000-12-07 2007-02-13 Blue Spike, Inc. System and methods for permitting open access to data objects and for securing data within the data objects
US7123718B1 (en) 1999-03-24 2006-10-17 Blue Spike, Inc. Utilizing data reduction in stegnographic and cryptographic systems
US7095874B2 (en) 1996-07-02 2006-08-22 Wistaria Trading, Inc. Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data
US7346472B1 (en) 2000-09-07 2008-03-18 Blue Spike, Inc. Method and device for monitoring and analyzing signals
US7457962B2 (en) 1996-07-02 2008-11-25 Wistaria Trading, Inc Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data
US5889868A (en) 1996-07-02 1999-03-30 The Dice Company Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data
US7159116B2 (en) 1999-12-07 2007-01-02 Blue Spike, Inc. Systems, methods and devices for trusted transactions
JP3716511B2 (ja) * 1996-09-02 2005-11-16 ソニー株式会社 ビデオ信号処理装置
JP3695016B2 (ja) * 1996-10-15 2005-09-14 ソニー株式会社 ビデオ信号処理装置及びビデオ信号処理方法
US7730317B2 (en) 1996-12-20 2010-06-01 Wistaria Trading, Inc. Linear predictive coding implementation of digital watermarks
US6233684B1 (en) * 1997-02-28 2001-05-15 Contenaguard Holdings, Inc. System for controlling the distribution and use of rendered digital works through watermaking
JP3103061B2 (ja) * 1997-09-12 2000-10-23 インターナショナル・ビジネス・マシーンズ・コーポレ−ション トークン作成装置および該トークンを用いたデータ制御システム
JP3488603B2 (ja) * 1997-09-16 2004-01-19 株式会社東芝 電子透かしを利用したコピープロテクトシステム
ES2181288T3 (es) * 1997-10-08 2003-02-16 Macrovision Corp Metodo y aparato para generar una marca de agua para copiar una sola vez para grabaciones de video.
US6137952A (en) * 1998-04-02 2000-10-24 Hewlett-Packard Company Apparatus and method for degrading the quality of unauthorized copies of color images and video sequences
US6181828B1 (en) * 1998-04-02 2001-01-30 Hewlett-Packard Company Apparatus and method for reducing compressibility of unauthorized copies of color images and video sequences
IL124595A (en) 1998-05-21 2009-09-01 Yossef Tsuria Anti-piracy system
US7644282B2 (en) 1998-05-28 2010-01-05 Verance Corporation Pre-processed information embedding system
JP3768705B2 (ja) * 1998-11-27 2006-04-19 キヤノン株式会社 電子透かし埋め込み装置、出力制御装置及びコンピュータ読み取り可能な記憶媒体
US6539475B1 (en) * 1998-12-18 2003-03-25 Nec Corporation Method and system for protecting digital data from unauthorized copying
WO2000041392A1 (en) * 1999-01-06 2000-07-13 Digital Video Express, L.P. Content packet distribution system
WO2000057643A1 (en) * 1999-03-24 2000-09-28 Blue Spike, Inc. Utilizing data reduction in steganographic and cryptographic systems
US7664264B2 (en) 1999-03-24 2010-02-16 Blue Spike, Inc. Utilizing data reduction in steganographic and cryptographic systems
IL129725A (en) 1999-05-02 2011-06-30 Nds Ltd Watermark system
US7475246B1 (en) 1999-08-04 2009-01-06 Blue Spike, Inc. Secure personal content server
US6571144B1 (en) * 1999-10-20 2003-05-27 Intel Corporation System for providing a digital watermark in an audio signal
US6640005B1 (en) * 1999-10-21 2003-10-28 Sharp Laboratories Of America, Inc. Method for inconspicuously adding tracking data in coded images
US6594441B1 (en) * 1999-12-01 2003-07-15 Macrovision Corporation Method and apparatus for video tag signal recovery using various techniques to regenerate and re-record the tag signal
US6737957B1 (en) 2000-02-16 2004-05-18 Verance Corporation Remote control signaling using audio watermarks
US7127744B2 (en) * 2000-03-10 2006-10-24 Digimarc Corporation Method and apparatus to protect media existing in an insecure format
JP3666570B2 (ja) * 2000-03-30 2005-06-29 松下電器産業株式会社 コピー防止方法、及びデジタル放送受信装置
US7305104B2 (en) 2000-04-21 2007-12-04 Digimarc Corporation Authentication of identification documents using digital watermarks
ATE271253T1 (de) * 2000-05-10 2004-07-15 Koninkl Philips Electronics Nv Kopierschutzsystem
DE60114638T2 (de) * 2000-08-16 2006-07-20 Dolby Laboratories Licensing Corp., San Francisco Modulation eines oder mehrerer parameter in einem wahrnehmungsgebundenen audio- oder video-kodiersystem in antwort auf zusätzliche information
US7127615B2 (en) 2000-09-20 2006-10-24 Blue Spike, Inc. Security based on subliminal and supraliminal channels for data objects
JP3636061B2 (ja) * 2000-11-08 2005-04-06 日本電気株式会社 データ挿入装置及びその方法
KR100390343B1 (ko) * 2001-03-23 2003-07-07 주식회사 마크애니 디지털 비디오 컨텐츠에 워터마크를 삽입하는 장치 및 방법
US7024018B2 (en) * 2001-05-11 2006-04-04 Verance Corporation Watermark position modulation
US7260722B2 (en) * 2001-12-28 2007-08-21 Itt Manufacturing Enterprises, Inc. Digital multimedia watermarking for source identification
GB2385763B (en) * 2002-02-22 2005-09-07 Sony Uk Ltd Image processing apparatus and method
KR20030081105A (ko) * 2002-04-12 2003-10-17 마츠시타 덴끼 산교 가부시키가이샤 광 디스크 재생장치 및 광 디스크 재생 제어방법
US7287275B2 (en) 2002-04-17 2007-10-23 Moskowitz Scott A Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth
EP1552454B1 (en) 2002-10-15 2014-07-23 Verance Corporation Media monitoring, management and information system
US7391691B2 (en) * 2003-08-29 2008-06-24 General Electric Company Method for facilitating copyright protection in digital media and digital media made thereby
US8861922B2 (en) 2003-09-29 2014-10-14 Alcatel Lucent Watermarking scheme for digital video
US7630509B2 (en) * 2003-09-29 2009-12-08 Alcatel-Lucent Usa Inc. Color selection scheme for digital video watermarking
US20060239501A1 (en) 2005-04-26 2006-10-26 Verance Corporation Security enhancements of digital watermarks for multi-media content
CA2562852C (en) * 2004-04-27 2013-02-12 Thomson Licensing Film fingerprinting
US8020004B2 (en) 2005-07-01 2011-09-13 Verance Corporation Forensic marking using a common customization function
US8781967B2 (en) 2005-07-07 2014-07-15 Verance Corporation Watermarking in an encrypted domain
US20070153025A1 (en) * 2005-12-29 2007-07-05 Mitchell Owen R Method, apparatus, and system for encoding and decoding a signal on a viewable portion of a video
CN101563914A (zh) * 2006-11-28 2009-10-21 日本电气株式会社 具有变焦功能的运动画面拍摄装置、图像处理和显示方法及程序
US8259938B2 (en) 2008-06-24 2012-09-04 Verance Corporation Efficient and secure forensic marking in compressed
CN102771109B (zh) 2010-02-22 2016-10-26 杜比实验室特许公司 通过盖写视频数据进行视频传递和控制的方法、设备和系统
US9607131B2 (en) 2010-09-16 2017-03-28 Verance Corporation Secure and efficient content screening in a networked environment
US8615104B2 (en) 2011-11-03 2013-12-24 Verance Corporation Watermark extraction based on tentative watermarks
US8923548B2 (en) 2011-11-03 2014-12-30 Verance Corporation Extraction of embedded watermarks from a host content using a plurality of tentative watermarks
US8682026B2 (en) 2011-11-03 2014-03-25 Verance Corporation Efficient extraction of embedded watermarks in the presence of host content distortions
US8533481B2 (en) 2011-11-03 2013-09-10 Verance Corporation Extraction of embedded watermarks from a host content based on extrapolation techniques
US8745403B2 (en) 2011-11-23 2014-06-03 Verance Corporation Enhanced content management based on watermark extraction records
US9547753B2 (en) 2011-12-13 2017-01-17 Verance Corporation Coordinated watermarking
US9323902B2 (en) 2011-12-13 2016-04-26 Verance Corporation Conditional access using embedded watermarks
US9571606B2 (en) 2012-08-31 2017-02-14 Verance Corporation Social media viewing system
US9106964B2 (en) 2012-09-13 2015-08-11 Verance Corporation Enhanced content distribution using advertisements
US8869222B2 (en) 2012-09-13 2014-10-21 Verance Corporation Second screen content
US8726304B2 (en) 2012-09-13 2014-05-13 Verance Corporation Time varying evaluation of multimedia content
US9262793B2 (en) 2013-03-14 2016-02-16 Verance Corporation Transactional video marking system
US9251549B2 (en) 2013-07-23 2016-02-02 Verance Corporation Watermark extractor enhancements based on payload ranking
US9208334B2 (en) 2013-10-25 2015-12-08 Verance Corporation Content management using multiple abstraction layers
EP3117626A4 (en) 2014-03-13 2017-10-25 Verance Corporation Interactive content acquisition using embedded codes

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3928867A (en) * 1974-05-10 1975-12-23 Gen Electric Television receiver with picture level control
US4218697A (en) * 1979-05-08 1980-08-19 William Leventer Digital data transmission arrangement using a standard TV video
DE4111979A1 (de) * 1991-04-12 1992-10-15 Thomson Brandt Gmbh Vorrichtung zur bildsignal-aufzeichnung und/oder -wiedergabe
JP3084796B2 (ja) * 1991-06-14 2000-09-04 ソニー株式会社 映像信号処理装置
JPH05153637A (ja) * 1991-11-26 1993-06-18 Sharp Corp テレビジヨン信号伝送方式及びその再生装置
JPH0644755A (ja) * 1992-07-24 1994-02-18 Sony Corp ビデオ信号の伝送方法及び記録装置
JP3217137B2 (ja) * 1992-07-28 2001-10-09 株式会社日立製作所 映像信号記録装置、再生装置及び伝送装置
US5739864A (en) * 1994-08-24 1998-04-14 Macrovision Corporation Apparatus for inserting blanked formatted fingerprint data (source ID, time/date) in to a video signal
JP2959413B2 (ja) * 1994-09-29 1999-10-06 日本ビクター株式会社 ダビング装置

Also Published As

Publication number Publication date
US5940134A (en) 1999-08-17
KR100462915B1 (ko) 2005-08-05
EP0808541A1 (en) 1997-11-26
KR19980702124A (ko) 1998-07-15
CN1123221C (zh) 2003-10-01
DE69609163D1 (de) 2000-08-10
JPH11500892A (ja) 1999-01-19
WO1997022206A1 (en) 1997-06-19
DE69609163T2 (de) 2001-03-08
EP0808541B1 (en) 2000-07-05

Similar Documents

Publication Publication Date Title
CN1123221C (zh) 标记视频和/或音频信号
EP0903736B1 (en) Recording/reproducing method and apparatus, processing apparatus, and recording medium for video signal having copy control information
CN1191724C (zh) 用于记录字幕的方法和装置
USRE46918E1 (en) Program encoding and counterfeit tracking system and method
AU729762B2 (en) Method and apparatus for a copy-once watermark for video recording
US7478242B2 (en) Increasing integrity of watermarks using robust features
WO1999012331A3 (en) Watermarking an information signal
KR20010012214A (ko) 워터마크 검출 방법 및 장치
CN1156310A (zh) 根据复制禁止信号控制记录操作的设备
US6415100B1 (en) Apparatus and method for sub-picture encoding
USRE45406E1 (en) Program encoding and counterfeit tracking system and method
CN1653808A (zh) 用于数字视频记录器的规则
CN100438568C (zh) 数字录像机中的控制字段事件检测
EP0955773B1 (en) Apparatus for generating recording signal including image data and copy condition information
US8842725B2 (en) Mark-based content modulation and detection
JPH06315131A (ja) 情報埋め込み装置と再生装置
CN1293753C (zh) 由不同电视观众产生视听电视节目内容编码的装置
US7333716B2 (en) Duplication controlling method, duplication controlling apparatus, recording medium, and duplication controlling program embodied on computer-readable medium
JP3652135B2 (ja) コピー制御情報を備えた映像信号の記録再生方法、記録再生装置及び処理装置並びに記録媒体
CN1184629C (zh) 数字图象信号或声音信号的重放装置以及重放方法
EP1255249B1 (en) Decoder, decoding method, re-encoder, re-encoding method, decoding program and re-encoding program embodied on computer-readable medium
CN1173559C (zh) 兼容压缩的视频指纹方法和装置
JP3156472B2 (ja) ディジタル信号処理回路
JPH07282183A (ja) 情報再生システム及び記録媒体
KR19980041072A (ko) 디스크 재생 시스템의 시청방지장치

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C53 Correction of patent for invention or patent application
CB02 Change of applicant information

Applicant after: Koninklike Philips Electronics N. V.

Applicant before: Philips Electronics N. V.

COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: N.V. PHILIPS OPTICAL LAMP LTD., CO. TO: ROYAL PHILIPS ELECTRONICS CO., LTD.

C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20031001

Termination date: 20091228