DE29713849U1 - Kopierschutzdecoder - Google Patents

Kopierschutzdecoder

Info

Publication number
DE29713849U1
DE29713849U1 DE29713849U DE29713849U DE29713849U1 DE 29713849 U1 DE29713849 U1 DE 29713849U1 DE 29713849 U DE29713849 U DE 29713849U DE 29713849 U DE29713849 U DE 29713849U DE 29713849 U1 DE29713849 U1 DE 29713849U1
Authority
DE
Germany
Prior art keywords
copy protection
protection decoder
decoder
copy
protection
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
DE29713849U
Other languages
English (en)
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.)
ELLERBROK DIETMAR
ELLERBROK INGRID
Original Assignee
ELLERBROK DIETMAR
ELLERBROK INGRID
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 ELLERBROK DIETMAR, ELLERBROK INGRID filed Critical ELLERBROK DIETMAR
Priority to DE29713849U priority Critical patent/DE29713849U1/de
Publication of DE29713849U1 publication Critical patent/DE29713849U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
DE29713849U 1997-07-25 1997-07-25 Kopierschutzdecoder Expired - Lifetime DE29713849U1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29713849U DE29713849U1 (de) 1997-07-25 1997-07-25 Kopierschutzdecoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29713849U DE29713849U1 (de) 1997-07-25 1997-07-25 Kopierschutzdecoder

Publications (1)

Publication Number Publication Date
DE29713849U1 true DE29713849U1 (de) 1997-10-02

Family

ID=8044111

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29713849U Expired - Lifetime DE29713849U1 (de) 1997-07-25 1997-07-25 Kopierschutzdecoder

Country Status (1)

Country Link
DE (1) DE29713849U1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8812594U1 (de) * 1988-10-04 1988-11-24 Ellerbrok, Ingrid, 1000 Berlin, De
WO1992009171A1 (en) * 1990-11-13 1992-05-29 Macrovision Corporation Method and apparatus for disabling anti-copy protection system in video signals
WO1994027406A2 (en) * 1993-05-17 1994-11-24 Macrovision Corporation Video copy protection process enhancement to introduce horizontal and vertical picture distortions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8812594U1 (de) * 1988-10-04 1988-11-24 Ellerbrok, Ingrid, 1000 Berlin, De
WO1992009171A1 (en) * 1990-11-13 1992-05-29 Macrovision Corporation Method and apparatus for disabling anti-copy protection system in video signals
WO1994027406A2 (en) * 1993-05-17 1994-11-24 Macrovision Corporation Video copy protection process enhancement to introduce horizontal and vertical picture distortions

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BEUTH,Ralph: Video-Kopierschutz Macrovision. In: Funkschau 26/94, S.62-65 *
DURPE,D.: Macrovision Stabilizer. In: Radio Electronics, 1987, Bd.58, Nr.12, S.49-54 *
Video-Kopierschutzkiller. In: Elektor 9, 1988, S.56-61 *
WARNKE,Fred: Frühzeitiger Konter. In: Funkschau 15/1988, S.56,57 *

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19971113

R021 Search request validly filed

Effective date: 19970811

R163 Identified publications notified

Effective date: 19971218

R150 Term of protection extended to 6 years

Effective date: 20000427

R157 Lapse of ip right after 6 years

Effective date: 20040203