Patent ID: 7366549

Claim:
An integrated mobile terminal device including an external display unit, and a personal digital assistant (PDA) unit and a cellular phone unit communicatively combined with one another, the device comprising: a timer controlled by either the PDA unit or the cellular phone unit, for enabling the PDA unit at given time intervals upon activation of the timer; wherein the cellular phone unit controls the external display unit in an enabled state, the cellular phone unit determines whether the PDA unit is in an enabled state when the cellular phone unit is directed to be switched off, the cellular phone unit directs the PDA unit to control the external display unit when the PDA is in the enabled state, and the cellular phone unit transitions to an off state after activating the timer when the PDA unit is in a disabled state; and wherein the PDA unit controls the external display unit in response to a control command from the cellular phone unit, the PDA unit determines whether the cellular phone unit is in the off state when the PDA unit transitions to the enabled state from the disabled state, the PDA unit controls the external display unit when the cellular phone unit is in the off state, and the PDA unit transitions to the disabled state after activating the timer for enabling the PDA unit at given time intervals when the PDA unit is disabled.