US Patent 7161885 Copy-protected compact disc and method for producing same
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Patent abstract
The present application relates to a copy-protected compact disc and a method for producing the optical disc and preventing unauthorized copying. The contents of at least one of the lead-in items in the optical disc are altered so that it is no longer uniform, thereby making a copied disc effectively corrupted and unplayable.
Edits on 31 Jul, 2023
Golden AI
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Patent Jurisdiction
Patent Number
71618850
Date of Patent
January 9, 2007
0Patent Application Number
103869220
Date Filed
March 13, 2003
0Patent Primary Examiner
Edits on 26 May, 2023
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US Patent 07161885 Copy-protected compact disc and method for producing same US Patent 7161885 Copy-protected compact disc and method for producing same
Infobox
Patent Number
0716188500
Patent Number
716188500
Edits on 29 Apr, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
071618850
Date of Patent
January 9, 2007
0Patent Application Number
103869220
Date Filed
March 13, 2003
0Official Website
Patent Primary Examiner
Edits on 22 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
071618850
Date of Patent
January 9, 2007
0Patent Application Number
103869220
Date Filed
March 13, 2003
0Official Website
Patent Primary Examiner
Edits on 8 Jun, 2022
Golden AI
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Infobox (+1 properties)
Infobox
Website URL
Edits on 20 Nov, 2021
Golden AI
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US Patent 07161885 Copy-protected compact disc and method for producing same
Infobox
Is a
Patent jurisdiction
Patent number
07161885
Date of patent
January 9, 2007
Patent application number
10386922
Date Filed
March 13, 2003
Patent primary examiner
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