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- Analog_Protection_System abstract "The Analog Protection System (APS), also known as Copyguard, is a DVD copy prevention system originally developed by Macrovision. Video tapes copied from DVDs encoded with APS become garbled and unwatchable. The process works by adding pulses to analog video signals to negatively impact the AGC circuit of a recording device. In digital devices changes to the analog video signal are created by a chip that converts the digital video to analog within the device. In DVD players trigger bits are created during DVD authoring to inform the APS that it should be applied to DVD players analog outputs or analog video outputs on a PC while playing back a protected DVD-Video disc. In set top boxes trigger bits are incorporated into Conditional Access Entitlement Control Messages (ECM) in the stream delivered to the STB. In VHS alterations to the analog video signal are added in a Macrovision-provided “processor box” used by duplicators.APS can be also signaled digitally, in the CGMS-A bit field sent in the vertical blanking interval.".
- Analog_Protection_System wikiPageExternalLink detail.asp?guid=&searchtype=1&DicID=15636&RefType=Dictionary.
- Analog_Protection_System wikiPageExternalLink 20030320_Macrovision_APS.pdf.
- Analog_Protection_System wikiPageID "3492814".
- Analog_Protection_System wikiPageLength "1634".
- Analog_Protection_System wikiPageOutDegree "15".
- Analog_Protection_System wikiPageRevisionID "640003913".
- Analog_Protection_System wikiPageWikiLink Automatic_gain_control.
- Analog_Protection_System wikiPageWikiLink CGMS-A.
- Analog_Protection_System wikiPageWikiLink Category:Compact_Disc_and_DVD_copy_protection.
- Analog_Protection_System wikiPageWikiLink Category:Digital_rights_management_systems.
- Analog_Protection_System wikiPageWikiLink Conditional_Access_Entitlement_Control_Message.
- Analog_Protection_System wikiPageWikiLink DVD.
- Analog_Protection_System wikiPageWikiLink DVD_authoring.
- Analog_Protection_System wikiPageWikiLink DVD_player.
- Analog_Protection_System wikiPageWikiLink Macrovision.
- Analog_Protection_System wikiPageWikiLink Personal_computer.
- Analog_Protection_System wikiPageWikiLink Rovi.
- Analog_Protection_System wikiPageWikiLink Set-top_box.
- Analog_Protection_System wikiPageWikiLink Set_top_box.
- Analog_Protection_System wikiPageWikiLink Vertical_blanking_interval.
- Analog_Protection_System wikiPageWikiLink Video.
- Analog_Protection_System wikiPageWikiLink Video_signal.
- Analog_Protection_System wikiPageWikiLinkText "Analog Protection System".
- Analog_Protection_System hasPhotoCollection Analog_Protection_System.
- Analog_Protection_System subject Category:Compact_Disc_and_DVD_copy_protection.
- Analog_Protection_System subject Category:Digital_rights_management_systems.
- Analog_Protection_System hypernym System.
- Analog_Protection_System type Disc.
- Analog_Protection_System comment "The Analog Protection System (APS), also known as Copyguard, is a DVD copy prevention system originally developed by Macrovision. Video tapes copied from DVDs encoded with APS become garbled and unwatchable. The process works by adding pulses to analog video signals to negatively impact the AGC circuit of a recording device. In digital devices changes to the analog video signal are created by a chip that converts the digital video to analog within the device.".
- Analog_Protection_System label "Analog Protection System".
- Analog_Protection_System sameAs النظام_التماثلي.
- Analog_Protection_System sameAs 아날로그_보호_시스템.
- Analog_Protection_System sameAs m.09gg_0.
- Analog_Protection_System sameAs Q4751048.
- Analog_Protection_System sameAs Q4751048.
- Analog_Protection_System wasDerivedFrom Analog_Protection_System?oldid=640003913.
- Analog_Protection_System isPrimaryTopicOf Analog_Protection_System.