Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2001-02-09
2008-09-30
Janvier, Jean (Department: 3688)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S001100, C705S014270, C705S026640, C705S027200, C705S050000, C705S051000, C705S054000, C705S057000, C713S176000, C713S152000, C380S001000, C380S001000
Reexamination Certificate
active
07430543
ABSTRACT:
A method for enforcing a contract for a computer-aided-design (CAD) tool is provided. In this method, a first payment for the CAD tool is made in accordance with the contract. The first payment is associated with user access to the CAD tool. At this point, the CAD tool can be used, wherein the computer system running the CAD tool includes criteria for requesting at least one additional payment for the CAD tool. Each additional payment is associated with generating an output. The computer system is responsive to one or more trigger conditions corresponding to the criteria. A payment request is received when an output generated by the CAD tool satisfies a trigger condition. For example, one trigger condition adds a watermark to the output for identifying the output as having been produced by the CAD tool.
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Harrison, Ann: “Aris says it's on key with digital watermark”, MAss High Tech (Watertown, MA, US), V14N26P1-Cambridge, MA, U, New England: “Add a Touch of Class to Printed Documents”, Baltimore Morning Sun: Jun. 12, 1998.
Benkoski Jacques
Bettadapur Dineshchandra R.
Cullen Aidan
Bever Hoffman & Harms LLP
Harms Jeanette S.
Janvier Jean
Synopsys Inc.
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