WO1997016022A1 - Digitally removing video copy protection pulses - Google Patents
Digitally removing video copy protection pulses Download PDFInfo
- Publication number
- WO1997016022A1 WO1997016022A1 PCT/US1996/016767 US9616767W WO9716022A1 WO 1997016022 A1 WO1997016022 A1 WO 1997016022A1 US 9616767 W US9616767 W US 9616767W WO 9716022 A1 WO9716022 A1 WO 9716022A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- digital
- copy protection
- signal
- video
- video signal
- Prior art date
Links
Classifications
-
- 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
- H04N7/171—Systems operating in the amplitude domain of the television signal
- H04N7/1713—Systems operating in the amplitude domain of the television signal by modifying synchronisation signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
- H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
- H03K19/1733—Controllable logic circuits
- H03K19/1737—Controllable logic circuits using multiplexers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/20—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits characterised by logic function, e.g. AND, OR, NOR, NOT circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
- H03K21/38—Starting, stopping or resetting the counter
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
- H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
- H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
-
- 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
- H04N7/169—Systems operating in the time domain of the television signal
- H04N7/1693—Systems operating in the time domain of the television signal by displacing synchronisation signals relative to active picture signals or vice versa
-
- 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
- H04N2005/91314—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 pulse signal inserted in blanking intervals of the video signal, e.g. pseudo-AGC pulses, pseudo-sync pulses
-
- 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
- H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
-
- 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
- H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
- H04N2005/91371—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video color burst signal being modified
Definitions
- Luminance copy protection signal for which analog defeat mechanisms are described have been fully described in the '603 and '098 patents by Ryan. See Figures 1A and 1 B.
- the elements of these copy protection signals are the combination of either a pseudo sync or a regular sync pulse with an
- FPG1 uses combination logic to "and” the 3 microsecond one shot output with composite sync from DCP1.
- the output of this "and " gate in FPG1 is low (because line 10's sync pulse is a logic low).
- the output of this "and " gate is high because line 272 is logic high in the middle of its line when sync separated via DCP1. The output of FPG1 is then a pulse that is high for even fields and low for odd fields.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69638231T DE69638231D1 (en) | 1995-10-17 | 1996-10-17 | DIGITAL REMOVAL OF VIDEO COPY PROTECTION PULSES |
EP96940248A EP0890261B1 (en) | 1995-10-17 | 1996-10-17 | Digitally removing video copy protection pulses |
CA002234972A CA2234972C (en) | 1995-10-17 | 1996-10-17 | Digitally removing video copy protection pulses |
JP51667497A JP4450434B2 (en) | 1995-10-17 | 1996-10-17 | Method and apparatus for digitally removing or suppressing the effect of copy protection signal from video signal |
KR10-1998-0702786A KR100489145B1 (en) | 1995-10-17 | 1996-10-17 | Method and apparatus for digitally removing the effects of video anti-copy signals from video signals |
AT96940248T ATE477678T1 (en) | 1995-10-17 | 1996-10-17 | DIGITAL REMOVAL OF VIDEO COPY PROTECTION PULSE |
AU77183/96A AU700093B2 (en) | 1995-10-17 | 1996-10-17 | Method and apparatus for digitally removing or defeating effects of copy protection signals from a video signal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US568195P | 1995-10-17 | 1995-10-17 | |
US60/005,681 | 1995-10-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997016022A1 true WO1997016022A1 (en) | 1997-05-01 |
Family
ID=21717156
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/016767 WO1997016022A1 (en) | 1995-10-17 | 1996-10-17 | Digitally removing video copy protection pulses |
PCT/US1996/016783 WO1997015142A1 (en) | 1995-10-17 | 1996-10-17 | Method and apparatus for removing or defeating effects of copy protection signals from a video signal |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1996/016783 WO1997015142A1 (en) | 1995-10-17 | 1996-10-17 | Method and apparatus for removing or defeating effects of copy protection signals from a video signal |
Country Status (12)
Country | Link |
---|---|
US (4) | US6002830A (en) |
EP (4) | EP1646234A3 (en) |
JP (2) | JP4355819B2 (en) |
KR (2) | KR100489145B1 (en) |
CN (2) | CN1164113C (en) |
AT (2) | ATE312475T1 (en) |
AU (3) | AU700093B2 (en) |
CA (2) | CA2234972C (en) |
DE (2) | DE69638231D1 (en) |
HK (1) | HK1015100A1 (en) |
NZ (2) | NZ323128A (en) |
WO (2) | WO1997016022A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6836549B1 (en) * | 1998-09-02 | 2004-12-28 | Macrovision Corporation | Method and apparatus for synthesizing and reducing the effects of video copy protection signals |
US7436457B2 (en) | 2003-12-31 | 2008-10-14 | Samsung Electronics Co., Ltd. | Analog/digital signal processor and analog/digital signal processing method |
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US6516132B1 (en) * | 1995-05-09 | 2003-02-04 | Macrovision Corp | Method and apparatus for improving the effects of color burst modifications to a video signal |
CZ293307B6 (en) * | 1995-05-09 | 2004-03-17 | Macrovision Corporation | Method and apparatus for defeating effects of color burst modifications to a video signal |
NZ323128A (en) * | 1995-10-17 | 1998-09-24 | Macrovision Corp | Digitally removing video copy protection pulses |
BR9708361A (en) * | 1996-04-01 | 1999-08-03 | Macrovision Corp | Process for controlling copy protection on digital video networks |
US7395545B2 (en) * | 1997-03-31 | 2008-07-01 | Macrovision Corporation | Method and apparatus for providing copy protection using a transmittal mode command |
JP3891230B2 (en) * | 1997-05-29 | 2007-03-14 | ソニー株式会社 | Additional information superimposing apparatus and additional information superimposing method |
US6295360B1 (en) | 1997-06-30 | 2001-09-25 | Macrovision Corporation | Method and apparatus to defeat composite video signal protection |
US6404889B1 (en) * | 1997-06-30 | 2002-06-11 | Macrovision Corporation | Protection of a component video signal |
JP4003096B2 (en) * | 1997-09-01 | 2007-11-07 | ソニー株式会社 | Method and apparatus for superimposing additional information on video signal |
US6141488A (en) | 1997-09-05 | 2000-10-31 | United Video Properties, Inc. | Program guide system for recording television programs |
US6459795B1 (en) * | 1998-02-26 | 2002-10-01 | Macrovision Corporation | Method and apparatus for enhancing the scrambling of a TV signal via erroneous clamp signals |
US6600873B1 (en) * | 1998-03-20 | 2003-07-29 | Macrovision Corporation | Method and apparatus for detecting modified color burst signals to prevent the copying of a video program |
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 |
WO1999060741A1 (en) * | 1998-05-20 | 1999-11-25 | Recording Industry Association Of America | Method for minimizing pirating or unauthorized copying of data |
US6345099B1 (en) * | 1998-05-22 | 2002-02-05 | S3 Incorporated | System and method for copy protecting computer graphics |
ATE273595T1 (en) * | 1998-09-02 | 2004-08-15 | Macrovision Corp | METHOD AND APPARATUS FOR PRODUCING AND DEFAULTING VIDEO COPY PROTECTION SIGNALS |
EP1480455A1 (en) * | 1998-09-02 | 2004-11-24 | Macrovision Corporation | Method and apparatus of synthesizing copy protection signals in a video signal |
DE69920273T2 (en) | 1998-11-12 | 2005-09-22 | Broadcom Corp., Irvine | INTEGRATED TUNER ARCHITECTURE |
US7324646B1 (en) | 1999-10-29 | 2008-01-29 | Sarnoff Corporation | Method and apparatus for film anti-piracy |
US7634089B1 (en) | 1999-10-29 | 2009-12-15 | Sarnoff Corporation | Cinema anti-piracy measures |
FR2808957B1 (en) * | 2000-05-11 | 2003-10-24 | Dominique Patrick Bryszkowski | ECONOMIC ELECTRONIC DEVICES DESACHIVING OR ATTENUATING THE EFFECTS OF ANTI-COPY SIGNALS INSERTED IN A VIDEO SIGNAL AND AUTHORIZING COPY |
US6842522B1 (en) * | 2000-06-01 | 2005-01-11 | Macrovision Corporation | Secure digital video disk and player |
US20050063256A1 (en) * | 2000-06-30 | 2005-03-24 | Selinfreund Richard H. | Data storage in optical discs |
WO2002002301A1 (en) | 2000-06-30 | 2002-01-10 | Verification Technologies Inc. | Copy-protected optical media and method of manufacture thereof |
US6638593B2 (en) | 2000-06-30 | 2003-10-28 | Verification Technologies, Inc. | Copy-protected optical media and method of manufacture thereof |
US7124944B2 (en) * | 2000-06-30 | 2006-10-24 | Verification Technologies, Inc. | Product packaging including digital data |
US7660415B2 (en) | 2000-08-03 | 2010-02-09 | Selinfreund Richard H | Method and apparatus for controlling access to storage media |
US7050698B1 (en) * | 2000-08-15 | 2006-05-23 | Macrovision Corporation | Method and apparatus for synthesizing or modifying a copy protection signal using a lowered signal level portion |
US7110042B1 (en) * | 2001-11-07 | 2006-09-19 | Pixelworks, Inc. | Synchronization signal decoder and associated method |
US7599604B2 (en) * | 2001-12-14 | 2009-10-06 | Thomson Licensing | Asynchronous copy protection detector |
US20050084645A1 (en) * | 2002-02-07 | 2005-04-21 | Selinfreund Richard H. | Method and system for optical disc copy-protection |
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US7398008B2 (en) * | 2002-09-19 | 2008-07-08 | Hewlett-Packard Development Company, L.P. | Copy protection for analog video signals from computing devices |
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US7376337B2 (en) * | 2002-09-30 | 2008-05-20 | Matsushita Electric Industrial Co., Ltd. | Video signal recording apparatus for copyrighted works |
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US7116374B2 (en) * | 2003-08-26 | 2006-10-03 | Koplar Interactive Systems International, L.L.C. | Method and system for enhanced modulation of video signals |
US7865057B2 (en) * | 2003-10-07 | 2011-01-04 | Rovi Solutions Corporation | Method and apparatus for conveying rights across an analog video interface |
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US20060023598A1 (en) * | 2004-07-30 | 2006-02-02 | Babinski James P | Method and apparatus for protecting against copying of content recorded on optical recording media |
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US7784103B2 (en) * | 2004-10-19 | 2010-08-24 | Rovi Solutions Corporation | Method and apparatus for storing copy protection information separately from protected content |
US7907727B2 (en) * | 2004-10-19 | 2011-03-15 | Rovi Solutions Corporation | System and method for allowing copying or distribution of a copy protected signal |
CN102202204A (en) * | 2004-10-28 | 2011-09-28 | 罗威解决方案公司 | Device and method for modifying video signal |
US7792293B2 (en) * | 2005-05-06 | 2010-09-07 | Rovi Solutions Corporation | Method and apparatus for modifying a subsequently generated control command in a content control system |
US20080100597A1 (en) | 2006-10-25 | 2008-05-01 | Macrovision Corporation | Method and apparatus to improve playability in overscan areas of a TV display |
US20080309816A1 (en) * | 2007-06-15 | 2008-12-18 | Macrovision Corporation | Television content control system and method with cross-platform capability |
US8798133B2 (en) * | 2007-11-29 | 2014-08-05 | Koplar Interactive Systems International L.L.C. | Dual channel encoding and detection |
US20090317057A1 (en) * | 2008-06-24 | 2009-12-24 | Hua Wu | Apparatus and method for selectively outputting hd/sd signals as high definition video according to copy protection |
US8280049B2 (en) * | 2008-08-27 | 2012-10-02 | Rovi Solutions Corporation | Method and apparatus for synthesizing copy protection for reducing/defeating the effectiveness or capability of a circumvention device |
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US8374490B2 (en) * | 2010-02-24 | 2013-02-12 | Rovi Technologies Corporation | Method and apparatus for receiving metadata, EPG, or IPG signals in an integrated circuit for control purposes |
US10945051B1 (en) | 2020-04-06 | 2021-03-09 | Bank Of America Corporation | System and method for intentionally distorting digital media to reduce the accuracy of generative machine learning algorithms |
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US4336554A (en) * | 1980-06-23 | 1982-06-22 | Clarion Co., Ltd. | Code signal blanking apparatus |
US4577216A (en) * | 1983-11-14 | 1986-03-18 | Macrovision | Method and apparatus for modifying the color burst to prohibit videotape recording |
US4626890A (en) * | 1984-07-03 | 1986-12-02 | Macrovision | Method and apparatus for removing phase modulation from the color burst |
US4695901A (en) * | 1986-03-04 | 1987-09-22 | Macrovision | Method and apparatus for removing pseudo-sync and/or agc pulses from a video signal |
US4742543A (en) * | 1983-12-22 | 1988-05-03 | Frederiksen Jeffrey E | Video transmission system |
US4819098A (en) * | 1983-11-23 | 1989-04-04 | Macrovision Corporation | Method and apparatus for clustering modifications made to a video signal to inhibit the making of acceptable videotape recordings |
US4907093A (en) * | 1986-08-11 | 1990-03-06 | Macrovision Corporation | Method and apparatus for preventing the copying of a video program |
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1996
- 1996-10-17 NZ NZ323128A patent/NZ323128A/en not_active IP Right Cessation
- 1996-10-17 KR KR10-1998-0702786A patent/KR100489145B1/en not_active IP Right Cessation
- 1996-10-17 JP JP51606497A patent/JP4355819B2/en not_active Expired - Lifetime
- 1996-10-17 EP EP05026581A patent/EP1646234A3/en not_active Withdrawn
- 1996-10-17 WO PCT/US1996/016767 patent/WO1997016022A1/en active IP Right Grant
- 1996-10-17 CA CA002234972A patent/CA2234972C/en not_active Expired - Lifetime
- 1996-10-17 EP EP96940248A patent/EP0890261B1/en not_active Expired - Lifetime
- 1996-10-17 WO PCT/US1996/016783 patent/WO1997015142A1/en active IP Right Grant
- 1996-10-17 KR KR10-1998-0702882A patent/KR100474124B1/en not_active IP Right Cessation
- 1996-10-17 DE DE69638231T patent/DE69638231D1/en not_active Expired - Lifetime
- 1996-10-17 AT AT96936734T patent/ATE312475T1/en not_active IP Right Cessation
- 1996-10-17 EP EP04001551A patent/EP1416730A3/en not_active Ceased
- 1996-10-17 CN CNB96197642XA patent/CN1164113C/en not_active Expired - Lifetime
- 1996-10-17 CN CN96197703A patent/CN1118192C/en not_active Expired - Lifetime
- 1996-10-17 CA CA002234971A patent/CA2234971C/en not_active Expired - Lifetime
- 1996-10-17 US US08/733,302 patent/US6002830A/en not_active Expired - Lifetime
- 1996-10-17 AT AT96940248T patent/ATE477678T1/en not_active IP Right Cessation
- 1996-10-17 AU AU77183/96A patent/AU700093B2/en not_active Expired
- 1996-10-17 JP JP51667497A patent/JP4450434B2/en not_active Expired - Lifetime
- 1996-10-17 NZ NZ321300A patent/NZ321300A/en unknown
- 1996-10-17 EP EP96936734A patent/EP0856224B1/en not_active Expired - Lifetime
- 1996-10-17 AU AU74580/96A patent/AU700266B2/en not_active Expired
- 1996-10-17 DE DE69635555T patent/DE69635555T2/en not_active Expired - Lifetime
-
1998
- 1998-08-20 US US09/137,357 patent/US5953417A/en not_active Expired - Lifetime
-
1999
- 1999-01-06 HK HK99100019A patent/HK1015100A1/en not_active IP Right Cessation
- 1999-02-01 AU AU14287/99A patent/AU715473B2/en not_active Expired
- 1999-10-08 US US09/414,747 patent/US6421497B1/en not_active Expired - Lifetime
- 1999-10-08 US US09/414,912 patent/US6173109B1/en not_active Expired - Lifetime
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US4937679A (en) * | 1986-08-11 | 1990-06-26 | Macrovision | Dual deck video recording apparatus having enhanced copy protection and method for providing enhanced copy protection to such a recording apparatus |
US5157510A (en) * | 1990-12-20 | 1992-10-20 | Macrovision Corporation | Method and apparatus for disabling anti-copy protection system in video signals using pulse narrowing |
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US7436457B2 (en) | 2003-12-31 | 2008-10-14 | Samsung Electronics Co., Ltd. | Analog/digital signal processor and analog/digital signal processing method |
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