Boots – shoes – and leggings
Patent
1989-04-07
1991-10-08
Lee, Thomas C.
Boots, shoes, and leggings
3642328, 3642433, 364244, 3642441, 3642446, 364253, 3642532, 3642466, 3649256, 3649278, 36492961, 36494071, 3649533, 364954, 3649542, 364956, 3649562, 3649573, 3649574, 364969, 3649694, G06F 100, G06F 1200, G06F 1214
Patent
active
050560093
ABSTRACT:
A storage portion for a ROM card for storing a distribution software comprises a software storage memory (ROM region) and a temporary memory (RAM region). A memory address trap circuit, when a predetermined specific address is designated, selects a temporary memory portion as an alternative to the software storage memory, while it selects a software storage memory when an address other than the specific address is designated. A software protection program stored, together with the distribution software, or as a sub-routine of the distribution software in the software storage memory, is executed by a program executing portion of a peripheral device to which the card is connected. The software protection program checks the medium in which this software protection program itself is stored to determine whether this medium can be data-accessed as a RAM region when the above-described specific address is designated, while, when an address other than the specific address is designated, it checks whether the medium can be data-accessed as the ROM region. If a desired result cannot be obtained, software protection program determines that the distribution software including the software protection program is unlawfully copied software and prevents its execution.
REFERENCES:
patent: 4525599 (1985-06-01), Curran et al.
patent: 4558176 (1985-12-01), Arnold et al.
patent: 4573119 (1986-02-01), Westheimer et al.
patent: 4644493 (1987-02-01), Chandra et al.
patent: 4685056 (1987-08-01), Barnsdale, Jr. et al.
patent: 4698750 (1987-10-01), Wilkie et al.
patent: 4734568 (1988-03-01), Watanabe
patent: 4823308 (1989-04-01), Knight
patent: 4879645 (1989-11-01), Tamada et al.
patent: 4882474 (1989-11-01), Anderl et al.
patent: 4903296 (1990-02-01), Chandra et al.
Lee Thomas C.
Lim Krisna
Mitsubishi Denki & Kabushiki Kaisha
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