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:
Sep. 08, 1998
Filed:
Oct. 28, 1996
Fujitsu Limited, Kawasaki, JP;
Abstract
A software copying system which enables copyrighted software recorded in a master storage medium to be copied to a user's target storage medium in a legitimate manner. A contents identifier reading unit reads out a software identifier from the master storage medium, while a storage medium identifier reading unit reads out a storage medium identifier from the target storage medium., The two identifiers are then sent to a central site which manages licenses for the right to copy software products. At the central site, a signature generating unit produces a first signature from those identifiers and sends it back to the user's site, where a signature writing unit writes the received signature into the target storage medium. A signature generating/comparing unit produces a second signature out of the same identifiers as those sent to the central site, and compares it with the first signature stored in the target storage medium. A data copying unit copies the subject software data file from the master storage medium to the target storage medium, only when the first and second signatures coincide with each other.