Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Reexamination Certificate
2005-11-15
2005-11-15
Barrón, Jr., Gilberto (Department: 2132)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
C713S191000, C705S051000, C705S052000, C717S172000
Reexamination Certificate
active
06966002
ABSTRACT:
Software is securely distributed with limited usage rights. The software may be an executable program and/or one or more data files such as image or multimedia data files. The software includes an access control object which prevents at least some usage of the software without use of a first access control code. The first access control code is produced based on selected information characteristic of the user's computer system. The access control code is produced in a server computer to which the user directs a request for the access control code. The user makes a payment to receive the access control code, which is then downloaded to the user's computer system.
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Barrón Jr. Gilberto
Glenn Michael A.
Glenn Patent Group
Lanier Benjamin E.
Trymedia Systems, Inc.
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