APPARATUS, METHOD, AND COMPUTER PROGRAM PRODUCT FOR ACCESS CONTROL TO A MOBILE TERMINAL
First Claim
1. A method comprising:
- generating a use end event indicating an end of use of a mobile terminal;
binarizing acceleration of the mobile terminal measured by the mobile terminal after the use end event is generated to one of a first value indicating a stationary state and a second value indicating a moving state;
generating a use start event indicating a start of use of the mobile terminal;
measuring a movement preparation period from a time at which the use end event is generated to a time at which a transition from the first value to the second value occurs; and
requesting user authentication in response to the use start event and in response to the movement preparation period exceeding a first threshold.
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0 Petitions
Accused Products
Abstract
An apparatus, computer program product, and method are disclosed for access control to a mobile terminal. A use end event is generated indicating an end of use of a mobile terminal. Acceleration of the mobile terminal is binarized by the mobile terminal after the use end event is generated to one of a first value indicating a stationary state and a second value indicating a moving state. A use start event is generated indicating a start of use of the mobile terminal. A movement preparation period is measured from a time at which the use end event is generated to a time at which a transition from the first value to the second value occurs. Use authentication is requested in response to the use start event and in response to the movement preparation period exceeding a first threshold.
33 Citations
20 Claims
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1. A method comprising:
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generating a use end event indicating an end of use of a mobile terminal; binarizing acceleration of the mobile terminal measured by the mobile terminal after the use end event is generated to one of a first value indicating a stationary state and a second value indicating a moving state; generating a use start event indicating a start of use of the mobile terminal; measuring a movement preparation period from a time at which the use end event is generated to a time at which a transition from the first value to the second value occurs; and requesting user authentication in response to the use start event and in response to the movement preparation period exceeding a first threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A mobile terminal comprising:
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an acceleration sensor for measuring an acceleration of the mobile terminal; an acceleration data processing unit for generating acceleration data obtained by binarizing an output of the acceleration sensor to a first value indicating a stationary state and a second value indicating a moving state; an acceleration data recording unit for recording the acceleration data from a use end event indicating an end of use of the mobile terminal to a use start event indicating a start of use of the mobile terminal; and a determination unit for measuring, in response to the use start event, a movement preparation period from a time at which the use end event is generated to a time at which a transition from the first value to the second value occurs using the acceleration data, and determining access prohibition for the mobile terminal in response to the movement preparation period exceeding a first threshold. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer program product comprising a storage device storing machine readable code executed by a processor to perform the operations of:
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generating a use end event indicating an end of use of an information processing device; determining whether an acceleration measured by the information processing device after the use end event is generated indicates a stationary state or a moving state; generating a use start event indicating a start of use of the information processing device; measuring a movement preparation period from a time at which the use end event is generated to a time at which a transition from the stationary state to the moving state occurs; and restricting access to the information processing device in response to the use start event and in response to the movement preparation period exceeding a first threshold. - View Dependent Claims (16, 17, 18, 19)
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20. A method comprising:
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generating a use end event indicating an end of use of the mobile terminal; measuring, by the mobile terminal, a movement preparation period from a time at which the use end event is generated to a time when movement of the mobile terminal starts; generating a use start event indicating a start of use of the mobile terminal; and requesting user authentication in response to the use start event and in response to the movement preparation period exceeding a predetermined threshold.
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Specification