Mobile communication terminal
AssigneeNEC Corporation
InventorYoshiki Imura
Life of this patent
Estimating the term…
Abstract
The mobile communication terminal has a main body unit and an attachment. When the main body unit separates from the attachment, the attachment transmits a predetermined radio signal. The main body unit receives the radio signal and determines whether its distance from the attachment exceeds specified distance. When the main body unit is at a distance from the attachment exceeding the specified distance, predetermined operation of the main body unit, for example, entering operation using a keypad, memory read-out operation, data transmission and data reception, are disabled. In this manner, it is possible to prevent unauthorized use by third parties or information leaks to third parties when the main body unit has been lost.
Claims17
A mobile communication terminal comprising:
- a main body unit having a radio unit;
- and an attachment that is detachable from the main body unit, wherein the main body unit comprises a first receiver for receiving a radio signal sent from the attachment, a determination section for determining whether or not the distance of the main body unit to the attachment exceeds specified distance, and a controller for disabling predetermined operation of the main body unit in accordance with a result of the determination section, and wherein the attachment comprises a first transmitter for transmitting the radio signal,
- wherein the controller performs at least one of sending a predetermined e-mail and making a phone call to a predetermined party regardless of disablement of the predetermined operation, when the distance between the main body unit and the attachment exceeds the predetermined distance.
Dependencies are inferred from the claim text.