Portable-type memory medium with access restriction circuit
First Claim
1. A portable-type memory medium comprising an access restriction circuit for restricting access to memory data via the input of personal identification number, etc., and a memory medium such as a flash memory, etc., to which access to its memory data is restricted by said access restriction circuit.
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Abstract
The purpose of the present invention is to provide a portable-type memory medium such as a compact flash, a memory stick, etc., or a memory medium adapter that is to be connected to smart media, an SD card, a micromedia card, etc., concerning which the memory data [of that portable-type memory medium or medium adapter] cannot be accessed by another person if the personal identification numbers, etc., that are inputted from an external portion are not correct.
With the portable-type memory medium with access restriction circuit of the present invention, since the personal identification number, etc., to be inputted must be the correct ones, another person cannot access its memory data; and, through the encoding of data of the memory medium such as a flash memory, etc., it can be ensured that, even if disassembled, information data will not be leaked.
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10 Claims
- 1. A portable-type memory medium comprising an access restriction circuit for restricting access to memory data via the input of personal identification number, etc., and a memory medium such as a flash memory, etc., to which access to its memory data is restricted by said access restriction circuit.
- 2. A memory medium adapter having an access restriction circuit for restricting access to memory data via the input of personal identification numbers etc., and which is connected from an exterior portion to said access restriction circuit, and which is capable of storing data of an exterior memory medium such as a flash memory, etc., to which access to its memory data is restricted.
Specification