Abstract: A neighbor cell monitoring method and apparatus for a dual-standby mobile terminal is provided to reduce unnecessary power consumption by controlling one of two communication units to operate in an idle state while the other performs neighbor cell monitoring. A neighbor cell monitoring method for multi-standby mobile terminal includes acquiring a neighbor's cell information through neighbor cell monitoring by operation of a master unit; performing cell tracking by the master unit and a slave unit independently; executing, when a cell change event is detected by the master unit, the cell change event using the neighbor cell information by the master unit; and transmitting, when a cell change event is detected by the slave unit, from the neighbor cell information from the master unit to the slave unit and executing the cell change event using the neighbor cell information by the slave unit.

Abstract: Disclosed herein are a battery device for preventing danger caused by battery overheating in a mobile terminal, and a method of operating the battery device. In the battery device, a battery state sensor periodically monitors a change in the state of a battery during operation or charging of the battery, and outputs a predetermined signal corresponding to the monitored state change, a controller senses a battery overheating-caused danger from the signal received from the battery state sensor and outputs a control signal, and an automatic locker separates the battery from the mobile terminal according to the control signal received from the controller.

Abstract: A neighbor cell monitoring method and apparatus for a dual-standby mobile terminal is provided to reduce unnecessary power consumption by controlling one of two communication units to operate in an idle state while the other performs neighbor cell monitoring. A neighbor cell monitoring method for multi-standby mobile terminal includes acquiring a neighbor's cell information through neighbor cell monitoring by operation of a master unit; performing cell tracking by the master unit and a slave unit independently; executing, when a cell change event is detected by the master unit, the cell change event using the neighbor cell information by the master unit; and transmitting, when a cell change event is detected by the slave unit, from the neighbor cell information from the master unit to the slave unit and executing the cell change event using the neighbor cell information by the slave unit.

Abstract: Disclosed herein are a battery device for preventing danger caused by battery overheating in a mobile terminal, and a method of operating the battery device. In the battery device, a battery state sensor periodically monitors a change in the state of a battery during operation or charging of the battery, and outputs a predetermined signal corresponding to the monitored state change, a controller senses a battery overheating-caused danger from the signal received from the battery state sensor and outputs a control signal, and an automatic locker separates the battery from the mobile terminal according to the control signal received from the controller.