Abstract: According to one embodiment, there is provided a semiconductor memory device including a memory cell array, a storage unit, a selection unit, a startup processing unit, and an operation control unit. The memory cell array includes memory cells. The storage unit stores a plurality of operating parameters. The selection unit accesses the storage unit and selects a first operating parameter for operating the memory cells from among the plurality of operating parameters stored in the storage unit, based on a first instruction input. The startup processing unit performs a power startup and reads out the first operating parameter from the storage unit and sets the first operating parameter so as to be ready for use, based on a second instruction input. The operation control unit uses the first operating parameter set by the startup processing unit in order to operate the memory cells.

Abstract: According to one embodiment, there is provided a semiconductor memory device including a memory cell array, a storage unit, a selection unit, a startup processing unit, and an operation control unit. The memory cell array includes memory cells. The storage unit stores a plurality of operating parameters. The selection unit accesses the storage unit and selects a first operating parameter for operating the memory cells from among the plurality of operating parameters stored in the storage unit, based on a first instruction input. The startup processing unit performs a power startup and reads out the first operating parameter from the storage unit and sets the first operating parameter so as to be ready for use, based on a second instruction input. The operation control unit uses the first operating parameter set by the startup processing unit in order to operate the memory cells.

Abstract: An arithmetic unit calculates an estimated time of arrival (ETA) of an aircraft at a target point, and obtains a difference between ETA and a required time of arrival (RTA) at the target point. It multiplies a time error corresponding to the difference in time by the velocity of the aircraft, thereby converting the time error to a distance error. The distance error is symbol-displayed as ?PTIME in a display unit. Thus, the time error concerning a flight of the aircraft is visually displayed as a distance error. If the distance error exceeds a preset threshold value, a caution such as a display message or a voice message is generated.

Abstract: An arithmetic unit calculates an estimated time of arrival (ETA) of an aircraft at a target point, and obtains a difference between ETA and a required time of arrival (RTA) at the target point. It multiplies a time error corresponding to the difference in time by the velocity of the aircraft, thereby converting the time error to a distance error. The distance error is symbol-displayed as &Dgr;PTIME in a display unit. Thus, the time error concerning a flight of the aircraft is visually displayed as a distance error. If the distance error exceeds a preset threshold value, a caution such as a display message or a voice message is generated.