Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Patent
1996-02-27
1998-06-02
Swann, Tod R.
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
711103, 2353825, 365145, G11C 700
Patent
active
057617333
ABSTRACT:
A data storage device such as a PC card connectable to a system equipment comprises a memory means for storing data, and a memory controller for controlling data transfer between the memory means and the system equipment. The device further comprises a security system and a data input section. The data input section comprises cells made of a ferroelectric material for inputting a matching data, and a user can give a matching data before connecting the device to a personal computer or the like. The data input section needs no electric power source in order to input a matching data. When the data storage device is connected to the system equipment, the security system receives a matching data from the data input section and decides if the matching data agrees with a reference data provided beforehand. The security system prohibits access to a memory means in the device if the matching data is decided not to agree with the reference data.
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Chow Christopher S.
Mitsubushi Denki Kabushiki Kaisha
Swann Tod R.
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