Boots – shoes – and leggings
Patent
1986-12-15
1989-01-03
Zache, Raulfe B.
Boots, shoes, and leggings
G06F 1214
Patent
active
047962208
ABSTRACT:
An authorized user of the program is allowed to make any number of backup copies of a computer program and to execute each such backup copy on the same authorized machine, but is inhibited from executing either the original or any copy thereof on any other machine. The method is implemented by including a control program with the application program to be copy controlled, which control program causes an interaction and registration of the program during initialization of the program with a central computer. The method includes generating a configuration code based on the configuration of the user's computer and the communication of the configuration code to the central computer. The central computer thereafter generates a permission code based on the communicated configuration code and communicates the permission code back to the user. The permission code is then entered into the user's computer and stored as a part of the control program. Prior to each subsequent execution of the program, a recalculation of the permission code is made by the control program and a comparison of the recalculated and the stored permission codes allows further execution of the program. The configuration code may include special data unique to the user's authorized computer and the recalculation of the permission code may be enabled only by data supplied by the central computers generated permission code. Further, self destruct code may be included in the control code to avoid tampering with the copy control scheme.
REFERENCES:
patent: 4562306 (1985-12-01), Chou et al.
patent: 4593353 (1986-06-01), Pickholtz
patent: 4644493 (1987-02-01), Chandra et al.
patent: 4652990 (1987-05-01), Pailen et al.
patent: 4685055 (1987-08-01), Thomas
patent: 4688169 (1987-08-01), Joshi
patent: 4740890 (1988-04-01), William
patent: 4748561 (1988-05-01), Brown
Barron Harry W.
Coleman Eric
Pride Software Development Corp.
Zache Raulfe B.
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