Abstract: The present invention relates to a flash storage device and an operation control method therefor, and when the flash storage device or a mobile terminal on which the flash storage device is mounted is connected to an external power supply, the flash storage device detects and classifies a power supply type, and according to detection and classification information thereof, the reliability and performance of the data of the device can be improved by performing an internal operation thereof.

Abstract: The present invention relates to a flash storage device and an operation control method therefor, and when the flash storage device or a mobile terminal on which the flash storage device is mounted is connected to an external power supply, the flash storage device detects and classifies a power supply type, and according to detection and classification information thereof, the reliability and performance of the data of the device can be improved by performing an internal operation thereof.

Abstract: The present disclosure provides a distance estimation device, including a wave signal detection unit configured to measure different types of waves, respectively, to detect different wave signals, a time delay estimation unit configured to produce a correlation coefficient from the detected different wave signals, and computes an arrival time difference using the correlation coefficient, and a distance calculation unit configured to estimate the distance of a target object using an arrival time difference for each of the different types of waves.