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:
Nov. 04, 2008
Filed:
Apr. 04, 2001
John J. Hart, Iii, Mashpee, MA (US);
Richard B. Levine, Marstons Mills, MA (US);
Andrew R. Lee, Marlborough, MA (US);
Daniel G. Howard, Mashpee, MA (US);
John J. Hart, III, Mashpee, MA (US);
Richard B. LeVine, Marstons Mills, MA (US);
Andrew R. Lee, Marlborough, MA (US);
Daniel G. Howard, Mashpee, MA (US);
ECD Systems, Inc., Marston Mills, MA (US);
Abstract
A system and method for distributing title data, such as songs, videos or computer games. The title data is provided from a central location to a customer who may purchase or rent a copy of the title data. The title data is made available on a computer readable media, which may be physical media, such as a CD or DVD, or virtual media, such as a computer network. Before distribution, the title data is watermarked with information to identify the customer to whom the title data was distributed. The watermark may be created using identifying information to modulate the title data using a randomly selected modulation scheme at multiple randomly selected locations. The system stores an indication of the locations and frequency modulation scheme, allowing the identifying information to be recovered from the watermarked copy of the title data.