Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Patent
1996-11-12
1998-07-21
Swann, Tod R.
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
364DIG1, 364DIG2, 3642865, 3642866, 36518533, 365218, 380 4, 711100, 711183, 711187, G06F 1200, G06F 1300
Patent
active
057847045
ABSTRACT:
A memory card includes data protection circuitry preventing unauthorized reading of data from and writing of data into a memory. Authorized memory access begins when specific data is attempted to be written into a specific address. This step activates a timer for an active time period during which data can be read from or written to the memory card upon receipt of appropriate control signals. When the active period of the timer has elapsed, access to the memory card is denied until the specific data is again attempted to be written into the specific address.
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Mitsubishi Denki & Kabushiki Kaisha
Swann Tod R.
Thai Tuan V.
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