Abstract: Disclosed in the present invention is a floating hologram system. The floating hologram system includes a diffuser configured to form a projection image using light beams transmitted from an image transmitter and diffuse the formed image, and a holographic optical element on which the image diffused from the diffuser is incident and which generates a virtual image floating at a position a predetermined distance therefrom and has a convex lens characteristic. A distance between the diffuser and the holographic optical element is determined based on a focal length of the holographic optical element and a distance from the holographic optical element to the virtual image.

Abstract: Disclosed is a method of operating a memory system which executes a plurality of commands including a write command and a trim command. The memory system includes a memory device, which includes a plurality of blocks. The method further includes performing garbage collection for generating a free block, calculating a workload level in performing the garbage collection, and changing a command schedule based on the workload level.

Abstract: Disclosed is a method of operating a memory system which executes a plurality of commands including a write command and a trim command. The memory system includes a memory device, which includes a plurality of blocks. The method further includes performing garbage collection for generating a free block, calculating a workload level in performing the garbage collection, and changing a command schedule based on the workload level.

Abstract: Disclosed is a method of operating a memory system which executes a plurality of commands including a write command and a trim command. The memory system includes a memory device, which includes a plurality of blocks. The method further includes performing garbage collection for generating a free block, calculating a workload level in performing the garbage collection, and changing a command schedule based on the workload level.

Abstract: Disclosed is a method of operating a memory system which executes a plurality of commands including a write command and a trim command. The memory system includes a memory device, which includes a plurality of blocks. The method further includes performing garbage collection for generating a free block, calculating a workload level in performing the garbage collection, and changing a command schedule based on the workload level.

Abstract: An audio output controlling apparatus and method, and a mobile terminal system using the same control settings of an audio out port according to whether an audio frame includes an audio signal. The audio output controlling method includes receiving an audio frame, determining whether an audio signal is included in the audio frame, and setting, depending on whether the audio signal is included in the audio frame, a power voltage provided to an audio out port. The mobile terminal includes a wireless transceiver; an audio unit, through an audio out port, an audio frame among the wireless data; and an audio output controlling unit to control a power voltage of the audio out port. The apparatus includes a section determining unit; and a power controlling unit to set a power voltage provided to an audio out port according to whether the audio signal is included in the audio frame.

Abstract: An adapter, providing a selective connection between a host and mass storage device, includes a high-speed storage device, a host interface and a device interface. The high-speed storage device is provided on a front surface of a printed circuit board (PCB), and includes multiple nonvolatile memory devices and a controller configured to control operations of the nonvolatile memory devices. The host interface is on a back surface of the PCB, and is configured to interface between the high-speed storage device and the host. The device interface is on the back surface of the PCB, and is configured to interface between the high-speed storage device and the mass storage device.

Abstract: An audio output controlling apparatus and method, and a mobile terminal system using the same control settings of an audio out port according to whether an audio frame includes an audio signal. The audio output controlling method includes receiving an audio frame, determining whether an audio signal is included in the audio frame, and setting, depending on whether the audio signal is included in the audio frame, a power voltage provided to an audio out port. The mobile terminal includes a wireless transceiver; an audio unit, through an audio out port, an audio frame among the wireless data; and an audio output controlling unit to control a power voltage of the audio out port. The apparatus includes a section determining unit; and a power controlling unit to set a power voltage provided to an audio out port according to whether the audio signal is included in the audio frame.