Method for identifying a system-allied physically separable...

Details Method for identifying a system-allied physically separable... Method for identifying a system-allied physically separable...

G - Physics

06

F

354/243

G06F 9/06 (2006.01) G06F 1/00 (2006.01) G06F 21/00 (2006.01)

Patent

CA 1183276

ABSTRACT: A method and system that discourages the use of unauthorized program software with proprietory data processing system hardware. Under the control of a start command signal generated by the central processing unit of the system an identifier is fetched up from a specified location in a program memory which is physi- cally separable from the data processing system. The identifier is then compared with a reference identifier which is stored in the proprietory hardware. The hard- ware blocks further execution of programs contained in the program memory if the identifiers are not congruent. In a preferred embodiment the identifier is displayed and the display is material which can only be legally used with the permission of the manufacturer or proprietory of the hardware; for example a registered trademark or copyrighted material.

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