Input device and user authentication method
First Claim
1. An input device having a given input screen comprising:
- a first unit that generates data indicating any one of a touch position, a touch area, and a touching time, the touch position being a position touched by an object, the touch area being an area touched by the object, and the touching time being a period touched by the object;
a second unit that generates password codes based on any one of the touch position, the touch area, and the touching time; and
a third unit that judges whether a user is an authorized user based on the password code.
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Accused Products
Abstract
An input device having a given input screen includes a first unit that generates data indicating any one of a touch position, a touch area, and a touching time, the touch position being a position touched by an object, the touch area being an area touched by the object, and the touching time being a period touched by the object, a second unit that generates password codes based on any one of the touch position, the touch area, and the touching time, and a third unit that judges whether a user is an authorized user based on the password code. It is possible to generate password codes including data of any one of the touch position, the touch area, and the touching time. Accordingly, the password cannot be stolen by others, and the input device with which impersonation or spoofing is difficult and the password need not be input.
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Citations
16 Claims
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1. An input device having a given input screen comprising:
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a first unit that generates data indicating any one of a touch position, a touch area, and a touching time, the touch position being a position touched by an object, the touch area being an area touched by the object, and the touching time being a period touched by the object;
a second unit that generates password codes based on any one of the touch position, the touch area, and the touching time; and
a third unit that judges whether a user is an authorized user based on the password code. - View Dependent Claims (2, 3, 4, 5, 6, 8)
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7. An input device having a given input screen comprising:
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an untouched time measurement unit that measures a period from a time when a touched object is removed from the input screen to another time when a removed object starts touching the input screen again;
a password code generation unit that generates password codes based on the untouched time; and
a judgment unit that judges whether a user is an authorized user.
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9. A user authentication method comprising the steps of:
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generating data indicating any one of a touch position, a touch area, and a touching time, the touch position being a position touched by an object, the touch area being an area touched by the object, and the touching time being a period touched by the object;
generating password codes based on any one of the touch position, the touch area, and the touching time; and
judging whether a user is an authorized user based on the password codes. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A user authentication method comprising the steps of:
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measuring a period from a time when a touched object is removed from the input screen to another time when a removed object starts touching the input screen again;
generating password codes based on the untouched time; and
judging whether or not a user is an authorized user. - View Dependent Claims (16)
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Specification