AU5706180A - Video copying inhibitor - Google Patents

Video copying inhibitor

Info

Publication number
AU5706180A
AU5706180A AU57061/80A AU5706180A AU5706180A AU 5706180 A AU5706180 A AU 5706180A AU 57061/80 A AU57061/80 A AU 57061/80A AU 5706180 A AU5706180 A AU 5706180A AU 5706180 A AU5706180 A AU 5706180A
Authority
AU
Australia
Prior art keywords
inhibitor
video copying
copying
video
copying inhibitor
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.)
Abandoned
Application number
AU57061/80A
Inventor
John Anthony Dimmers
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU5706180A publication Critical patent/AU5706180A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/00818—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction limits the signal quality, e.g. by low-pass filtering of audio signals or by reducing the resolution of video signals
    • G11B20/00826—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction limits the signal quality, e.g. by low-pass filtering of audio signals or by reducing the resolution of video signals wherein a spoiler signal is added to degrade the signal quality
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Television Signal Processing For Recording (AREA)
AU57061/80A 1979-04-11 1979-04-11 Video copying inhibitor Abandoned AU5706180A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPD835379 1979-04-11
AUPD8353 1979-04-11

Publications (1)

Publication Number Publication Date
AU5706180A true AU5706180A (en) 1980-10-16

Family

ID=3768060

Family Applications (1)

Application Number Title Priority Date Filing Date
AU57061/80A Abandoned AU5706180A (en) 1979-04-11 1979-04-11 Video copying inhibitor

Country Status (2)

Country Link
AU (1) AU5706180A (en)
GB (1) GB2050675A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU624334B2 (en) * 1987-07-29 1992-06-11 Scitec Corporation Copy protected pre-recorded videotape

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117549A (en) * 1982-03-19 1983-10-12 Kegmatics Limited Security marking video tape recordings
FR2534433B1 (en) * 1982-10-08 1986-04-11 Thomson Csf METHOD FOR PROTECTING A SEQUENCE OF VIDEO IMAGES AGAINST FRAUDULENT USE AND DEVICES FOR CARRYING OUT SAID METHOD
FR2540659A1 (en) * 1983-02-09 1984-08-10 Sisex DEVICE FOR PROTECTING MAGNETIC TAPES, OR OTHER RECORDING MEDIA, OR TELEVISION OR RADIO TRANSMISSION AGAINST UNAUTHORIZED READING AND / OR REPRODUCTION
NL8500515A (en) * 1985-02-22 1986-09-16 Arie Marinus Wijnen METHOD AND APPARATUS FOR SECURING IMAGE SIGNALS
DE3851724T2 (en) * 1987-07-08 1995-05-04 Matsushita Electric Ind Co Ltd Method and device for protecting copy signals.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU624334B2 (en) * 1987-07-29 1992-06-11 Scitec Corporation Copy protected pre-recorded videotape

Also Published As

Publication number Publication date
GB2050675A (en) 1981-01-07

Similar Documents

Publication Publication Date Title
AU520385B2 (en) Dust prevention methods
AU561888B2 (en) Picture viewer
AU537912B2 (en) Cassette
AU530660B2 (en) Video apparatus
AU545906B2 (en) Dye-composition for recording
AU539785B2 (en) 2-penem compounds
AU574695B2 (en) B-41 milbemycim compounds
AU531073B2 (en) Introcular lens
AU525768B2 (en) Hydrolyzing chlorosilicon compounds
AU5511080A (en) Tap
AU536082B2 (en) Substituted 3-amino-sydnone-imines
AU529934B2 (en) Substituted tetraazatricyclic compounds
AU6179480A (en) Polyazathia compounds
AU5706180A (en) Video copying inhibitor
AU531134B2 (en) Electrographic recording
AU5635580A (en) Diazatricyclic compounds
AU6440080A (en) Copying system
AU5662080A (en) Substituted n-allyl-acetanilides
AU530504B2 (en) 1-styrylmethylimidazole compounds
AU6539980A (en) 2-oxybenzimidazoline compounds
AU532555B2 (en) Polyfluoroallyloxy compounds
AU5975280A (en) Tap
AU6144380A (en) Substituted 2-carbamoyloximino-butanes
AU5941580A (en) Projector
AU5540280A (en) Low profile copier