Patent ID: 6282612
Filing Date: 2001-08-28
Classification: G06F,H04M

Abstract:
A removable memory device comprising:an input port which is connectable to a portable terminal device, forreceiving a first command and a first password through the portable terminal device when the removable memory device is connected to the portable terminal device;a storage for storing information for operating the portable terminal device and a second password; anda control unit responsive to the first command and the first password input from said input port, for protecting information stored in said storage according to the first command to prevent unauthorized access when the first password is not coincident with the second password stored in said storage, said input port, storage and control unit physically part of said removable memory device so as to be removable from said portable terminal device with said removable memory device,wherein said control unit erases the information stored in said storage, when the removable memory device is removed from the portable terminal device without coincidence of the first password and the second password.