Abstract: According to various embodiments, an electronic device is provided and includes a housing, a support frame which is arranged in an internal space of the housing and has a first surface, a second surface facing a direction opposite to the first surface, and a through hole, a display supported by the first surface and arranged to be seen from outside through at least a part of the housing, and an optical sensor module arranged in the second surface to face the through hole.

Abstract: Provided is a method, performed by an augmented reality (AR) device, of measuring a user's vision. The method includes: obtaining, by using a camera of the AR device, a background image including an image of at least one physical object; identifying an edge of the image of the at least one physical object in the background image; determining a first region for measuring the vision of the user on the background image based on the edge of the image; determining a second region corresponding to the first region on a display of the AR device; outputting a virtual object for measuring the vision of the user to the second region; obtaining a user input signal for vision measurement after the outputting the virtual object; and determining a vision prescription value of the user based on the user input signal.

Abstract: A nonvolatile memory system is disclosed. The nonvolatile memory system includes a host device and a storage device connected to the host device through a physical cable including a power line and a data line. The storage device includes: a nonvolatile memory; a link controller configured to temporarily deactivate the data line while supplying power from the host device through the power line; and a memory controller including a user verification circuit configured to authenticate a user of the storage device and change a state of the memory controller according to a verification result, a relink trigger circuit configured to control the link controller based on the state change of the memory controller, and a data processing circuit configured to encrypt and decrypt data.

Abstract: a method and an apparatus for managing a cache for storing content by determining popularity of the content based on content requests received during a current time slot for the content; transmitting information about the popularity of the content to a time-to-live (TTL) controller and receiving, from the TTL controller, TTL values for each popularity level determined by the TTL controller based on the information about the popularity; and managing the content based on the TTL values for each popularity level are provided.

Abstract: a method and an apparatus for managing a cache for storing content by determining popularity of the content based on content requests received during a current time slot for the content; transmitting information about the popularity of the content to a time-to-live (TTL) controller and receiving, from the TTL controller, TTL values for each popularity level determined by the TTL controller based on the information about the popularity; and managing the content based on the TTL values for each popularity level are provided.

Abstract: An electronic device having a function for sensing 2D and 3D touch which includes a display unit; a bezel frame unit; a plurality of light emitting units; a plurality of light receiving units; a light isolation unit configured to isolate a first light for sensing 2D touch and a second light for sensing 3D touch from the lights incident thereon from the light emitting units; a driving control unit configured to sequentially operate the plurality of the light emitting units; and a motion recognition unit configured to calculate a horizontal coordinate based on the quantity of the first light, to calculate a spatial coordinate based on the quantity of the second light, to extract a motion of the pointer based on the detected quantity of the light and to implement an operation corresponding to the extracted motion.

Abstract: An electronic device having a function for sensing 2D and 3D touch which includes a display unit; a bezel frame unit; a plurality of light emitting units; a plurality of light receiving units; a light isolation unit configured to isolate a first light for sensing 2D touch and a second light for sensing 3D touch from the lights incident thereon from the light emitting units; a driving control unit configured to sequentially operate the plurality of the light emitting units; and a motion recognition unit configured to calculate a horizontal coordinate based on the quantity of the first light, to calculate a spatial coordinate based on the quantity of the second light, to extract a motion of the pointer based on the detected quantity of the light and to implement an operation corresponding to the extracted motion.

Abstract: When a handover apparatus of a user terminal enters a small scale cell within a macrocell area in a state that it is connected to a macrocell, the handover apparatus acquires a delay parameter of the small scale cell and delays handover for a time period of the delay parameter of the small scale cell and determines handover to the small scale cell. Thereby, handover to the small scale cell for a temporal user of the small scale cell can be reduced.

Abstract: A remote control apparatus that provides haptic sensations. The remote control apparatus includes a dial, a motor, a rotary encoder, an encoder counter, a control unit and a motor controller. The remote control apparatus further includes a storage unit, a movement detection unit and a display unit. When a user selects an icon displayed on the display unit by rotating the dial, the control unit interprets the user instruction through the rotary encoder and the encoder counter to control the motor to generate torque for causing a haptic sensation corresponding to the interpreted instruction via the motor controller. While the haptic sensation is conveyed to the user through the dial, the control unit controls an appliance to perform the interpreted instruction thereon.

Abstract: When a handover apparatus of a user terminal enters a small scale cell within a macrocell area in a state that it is connected to a macrocell, the handover apparatus acquires a delay parameter of the small scale cell and delays handover for a time period of the delay parameter of the small scale cell and determines handover to the small scale cell. Thereby, handover to the small scale cell for a temporal user of the small scale cell can be reduced.

Abstract: A remote control apparatus that provides haptic sensations. The remote control apparatus includes a dial, a motor, a rotary encoder, an encoder counter, a control unit and a motor controller. The remote control apparatus further includes a storage unit, a movement detection unit and a display unit. When a user selects an icon displayed on the display unit by rotating the dial, the control unit interprets the user instruction through the rotary encoder and the encoder counter to control the motor to generate torque for causing a haptic sensation corresponding to the interpreted instruction via the motor controller. While the haptic sensation is conveyed to the user through the dial, the control unit controls an appliance to perform the interpreted instruction thereon.