The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2016
Filed:
Jul. 16, 2003
Kenneth L. Levy, Stevenson, WA (US);
Kenneth L. Levy, Stevenson, WA (US);
Digimarc Corporation, Beaverton, OR (US);
Abstract
Improved copy protection systems including copy once, personal computer (PC) buffer copy protection, and identifying different copy control systems are provided. A 'copy once' protection system uses memory in a recording device to remember content or physical media IDs so that the same original content or media is not copied twice. A PC buffer copy protection system determines if there is a relationship between input and output buffers on a PC, or networked PCs, to determine if the content can be copied. Different copy control systems, such as DVD systems and Conditional Access (CA) TV systems, can use different copy control watermark keys or payloads to identify which type of copy control system should be implemented.