Abstract: The present invention relates to a method of preparing an adsorbent for removing radon. The method includes (a) mixing a fluorine (F) compound and zeolite to produce a second mixture.

Abstract: A method, performed by a device, of processing an image, may include obtaining a circular image generated by photographing a target space through a fisheye lens; generating metadata including lens shading compensation information for correcting color information of the obtained circular image; and transmitting the obtained circular image and the metadata to a terminal.

Abstract: An electronic device and method for measuring user body information are provided. The method for measuring user body information includes detecting a contact of a user's body portion on at least two spots of a touch screen of the electronic device, upon detecting the contact of the user's body portion on the at least two spots of the touch screen, applying power to a first coil in the electronic device, and measuring the user body information using at least one of a voltage and a second current measured after a first current is induced across the user's body by a first magnetic field generated from the first coil as the power is applied.

Abstract: An optical system is provided. The optical system includes an image generator configured to output image signals for configuring a virtual image, and an infrared (IR) image signal, a multipath optical element configured to guide the beams, a diffraction grating configured to diffract parts of the output beams and transmit other parts of the output beams, an outcoupler configured to allow the diffracted beams to exit the multipath optical element, a first camera configured to sense a pattern of reflection of an IR beam exiting the outcoupler, an IR filter diffraction element, a second camera configured to sense a pattern of reflection of the IR beam projected toward the real world, and a processor configured to determine a line of sight of a user based on the pattern sensed by the first camera, and to determine depth information of the object based on the pattern sensed by the second camera.

Abstract: The present disclosure relates to a technology for a sensor network, machine to machine (M2M), machine type communication (MTC), and Internet of things (TOT). The present disclosure can be utilized for intelligent services (smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security and safety related services, etc.) on the basis of the above technology. The present disclosure provides a method and apparatus for controlling operations of electronic devices.

Abstract: An optical system is provided which includes a light source which outputs light; a first waveguide; a transmissive reflective layer provided on a top surface of the first waveguide and configured to reflect some light and transmit the remaining light incident thereon; a second waveguide provided on a top surface of the transmissive reflective layer; an in-coupler provided on the first waveguide and configured to allow the light output by the light source to enter the first waveguide; and an out-coupler provided on one of the first waveguide and the second waveguide and configured to emit light from the optical system.

Abstract: Exemplary embodiments of the present disclosure provide a method and apparatus for controlling a target device of a host and a client for supporting a service for the target device which has connectivity not supported by the host. According to an exemplary embodiment of the present disclosure, the method for controlling the target device of the host includes: receiving, from a first client having the same connectivity as that of at least one target device, target information on the target device, and managing the target information; and, when a service request signal for the target device is received from a second client, transmitting, to the target device, a service control signal for controlling the target device using the target information.

Abstract: Provided is a virtual image display device including: an image generator outputting a virtual image; a filter transmitting light in a first polarization state in the output virtual image; a multipath optical element guiding the transmitted light in the first polarization state; a first optical element arranged on a first side of the multipath optical element and allowing the guided light in the first polarization state and real-world light to pass therethrough; a second optical element arranged on a second side opposite to the first side of the multipath optical element and allowing the real-world light to pass therethrough; and a processor controlling the image generator, the first optical element, and the second optical element.

Abstract: A method, performed by a device, of processing an image, may include obtaining a circular image generated by photographing a target space through a fisheye lens; generating metadata including lens shading compensation information for correcting color information of the obtained circular image; and transmitting the obtained circular image and the metadata to a terminal.

Abstract: A method, performed by a device, of processing an image, may include obtaining a circular image generated by photographing a target space through a fisheye lens; generating metadata including lens shading compensation information for correcting color information of the obtained circular image; and transmitting the obtained circular image and the metadata to a terminal.

Abstract: A display apparatus and a method of displaying an image by the display apparatus are provided. The display apparatus and the method include displaying a first content image on the display apparatus, detecting a first touch from a bezel of the display apparatus, displaying a folding area on a first edge of the first content image in response to a location of the first touch, and moving the first content image to the folding area from an adjacent folding area of the first content image, which contacts the folding area, in response to holding time of the first touch.

Abstract: According to an embodiment of the present disclosure, a method for operating an electronic device includes displaying a result of recognizing at least one other electronic device as at least one item, and sending a message requesting the at least one other electronic device to output an identifiable signal.

Abstract: A method to transmit and receive a packet in a bridge of a communication system is provided. The method includes receiving a first packet from a first network. The method also includes converting a medium access control (MAC) layer source address of the received first packet into a MAC address of the bridge. The method further includes transmitting the address-converted first packet to a node of a second network.

Abstract: An electronic device and method for measuring user body information are provided. The method for measuring user body information includes detecting a contact of a user's body portion on at least two spots of a touch screen of the electronic device, upon detecting the contact of the user's body portion on the at least two spots of the touch screen, applying power to a first coil in the electronic device, and measuring the user body information using at least one of a voltage and a second current measured after a first current is induced across the user's body by a first magnetic field generated from the first coil as the power is applied.

Abstract: Provided is a virtual image display device including: an image generator outputting a virtual image; a filter transmitting light in a first polarization state in the output virtual image; a multipath optical element guiding the transmitted light in the first polarization state; a first optical element arranged on a first side of the multipath optical element and allowing the guided light in the first polarization state and real-world light to pass therethrough; a second optical element arranged on a second side opposite to the first side of the multipath optical element and allowing the real-world light to pass therethrough; and a processor controlling the image generator, the first optical element, and the second optical element.

Abstract: Provided are door lock control apparatus and method having enhanced security and being capable of providing improved convenience to a user, the door lock control method including: requesting a server for security information set in a door lock; receiving first security information from the server; unlocking the door lock by using the first security information; and setting second security information different from the first security information, in the door lock.

Abstract: Exemplary embodiments of the present disclosure provide a method and apparatus for controlling a target device of a host and a client for supporting a service for the target device which has connectivity not supported by the host. According to an exemplary embodiment of the present disclosure, the method for controlling the target device of the host includes: receiving, from a first client having the same connectivity as that of at least one target device, target information on the target device, and managing the target information; and, when a service request signal for the target device is received from a second client, transmitting, to the target device, a service control signal for controlling the target device using the target information.

Abstract: The present invention relates to a method for establishing a wireless LAN (WLAN) communication connection and an electronic device therefore. The method for establishing a WLAN communication connection in a device may comprise the steps of: receiving a probe request message from another device; and selectively transmitting a response signal in response to the probe request on the basis of at least one of information included in the received probe request message and internal information of the device.

Abstract: An electronic device and method for measuring user body information are provided. The method for measuring user body information includes detecting a contact of a user's body portion on at least two spots of a touch screen of the electronic device, upon detecting the contact of the user's body portion on the at least two spots of the touch screen, applying power to a first coil in the electronic device, and measuring the user body information using at least one of a voltage and a second current measured after a first current is induced across the user's body by a first magnetic field generated from the first coil as the power is applied.

Abstract: Exemplary embodiments of the present disclosure provide a method and apparatus for controlling a target device of a host and a client for supporting a service for the target device which has connectivity not supported by the host. According to an exemplary embodiment of the present disclosure, the method for controlling the target device of the host includes: receiving, from a first client having the same connectivity as that of at least one target device, target information on the target device, and managing the target information; and, when a service request signal for the target device is received from a second client, transmitting, to the target device, a service control signal for controlling the target device using the target information.