发明名称 METHOD FOR ESTABLISHING LICENSOR CHANGEABLE LIMITS ON SOFTWARE USAGE.
摘要 A system and method for establishing licensor changeable limits on shared software usage without the licensor having access to the system on which the shared software is running. An encrypted numerical limit value is embedded in the licensed software (program); when the program is executed ("accessed"), as a first step, the program decrypts the limit value (204) and compares it to the number of users currently accessing the shared program (210). If the number of users is less than the limit, then access is allowed (214). If the number of users is equal to (or greater than) the limit, then access is denied (212). <IMAGE>
申请公布号 EP0597599(A3) 申请公布日期 1994.08.10
申请号 EP19930308337 申请日期 1993.10.20
申请人 AMERICAN TELEPHONE AND TELEGRAPH COMPANY 发明人 LASSERS, HAROLD AARON
分类号 G06F1/00;G06F21/00 主分类号 G06F1/00
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