ATE124588T1 - Verfahren zur verhinderung von nichterlaubter aufzeichnung von videoprogrammen auf band. - Google Patents

Verfahren zur verhinderung von nichterlaubter aufzeichnung von videoprogrammen auf band.

Info

Publication number
ATE124588T1
ATE124588T1 AT89202558T AT89202558T ATE124588T1 AT E124588 T1 ATE124588 T1 AT E124588T1 AT 89202558 T AT89202558 T AT 89202558T AT 89202558 T AT89202558 T AT 89202558T AT E124588 T1 ATE124588 T1 AT E124588T1
Authority
AT
Austria
Prior art keywords
tape
memory
stage
signals
control
Prior art date
Application number
AT89202558T
Other languages
English (en)
Inventor
Arie Marinus Wijnen
Original Assignee
Copyguard Enterprises
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 Copyguard Enterprises filed Critical Copyguard Enterprises
Application granted granted Critical
Publication of ATE124588T1 publication Critical patent/ATE124588T1/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/91Television signal processing therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/91Television signal processing therefor
    • H04N5/913Television signal processing therefor for scrambling ; for copy protection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/91Television signal processing therefor
    • H04N5/913Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91314Television 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/91Television signal processing therefor
    • H04N5/913Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91385Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video frame number being modulated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/79Processing of colour television signals in connection with recording
    • H04N9/87Regeneration of colour television signals
    • H04N9/89Time-base error compensation
    • H04N9/896Time-base error compensation using a digital memory with independent write-in and read-out clock generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Burglar Alarm Systems (AREA)
  • Machine Tool Sensing Apparatuses (AREA)
AT89202558T 1988-10-11 1989-10-10 Verfahren zur verhinderung von nichterlaubter aufzeichnung von videoprogrammen auf band. ATE124588T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8802494A NL8802494A (nl) 1988-10-11 1988-10-11 Werkwijze en toestel voor het verhinderen van het onrechtmatig op band overnemen van beeldprogramma's.

Publications (1)

Publication Number Publication Date
ATE124588T1 true ATE124588T1 (de) 1995-07-15

Family

ID=19853031

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89202558T ATE124588T1 (de) 1988-10-11 1989-10-10 Verfahren zur verhinderung von nichterlaubter aufzeichnung von videoprogrammen auf band.

Country Status (13)

Country Link
EP (1) EP0364047B1 (de)
JP (1) JPH04506590A (de)
KR (1) KR900702713A (de)
AT (1) ATE124588T1 (de)
AU (1) AU634502B2 (de)
BR (1) BR8907709A (de)
CA (1) CA2000423A1 (de)
DE (1) DE68923241T2 (de)
ES (1) ES2075035T3 (de)
GR (1) GR3017593T3 (de)
IL (1) IL91915A (de)
NL (1) NL8802494A (de)
WO (1) WO1990004305A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9000951A (nl) * 1990-04-20 1991-11-18 Copyguard Enterprises Werkwijze en toestel voor het verhinderen van het onrechtmatig op band overnemen van beeldsignalen.
US5585929A (en) * 1993-06-10 1996-12-17 Young; Philip L. Method and apparatus for modifying a video signal to inhibit unauthorized videotape recording and subsequent reproduction thereof
US5589944A (en) * 1993-06-10 1996-12-31 Young; Philip L. Method and apparatus for generating a video signal producing an unviewable display from a videotape recording thereof
US5680454A (en) * 1995-08-04 1997-10-21 Hughes Electronics Method and system for anti-piracy using frame rate dithering
AU5448100A (en) * 1999-05-27 2000-12-18 Digital Electronic Cinema, Inc. Systems and methods for preventing camcorder piracy of motion picture images

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488183A (en) * 1980-10-27 1984-12-11 Victor Company Of Japan, Limited Copy-proof recording medium and device for adding copy-proof interference signal
US4673981A (en) * 1984-03-23 1987-06-16 Massachusetts Institute Of Technology Unrecordable video signals
NL8500515A (nl) * 1985-02-22 1986-09-16 Arie Marinus Wijnen Werkwijze en toestel voor het beveiligen van beeldsignalen.

Also Published As

Publication number Publication date
JPH04506590A (ja) 1992-11-12
BR8907709A (pt) 1991-07-30
KR900702713A (ko) 1990-12-08
ES2075035T3 (es) 1995-10-01
NL8802494A (nl) 1990-05-01
IL91915A0 (en) 1990-06-10
GR3017593T3 (en) 1995-12-31
AU4495289A (en) 1990-05-01
WO1990004305A1 (en) 1990-04-19
EP0364047B1 (de) 1995-06-28
EP0364047A1 (de) 1990-04-18
DE68923241D1 (de) 1995-08-03
AU634502B2 (en) 1993-02-25
CA2000423A1 (en) 1990-04-11
DE68923241T2 (de) 1996-02-22
IL91915A (en) 1994-11-11

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee