Abstract: Disclosed is a head mounted display device. The head mounted display device includes a head mount unit wearable on a head of a user, a display unit supported on the head mount unit and sending an image to eyes of the user, and a position adjustment unit coupled to the head mount unit, connected to the display unit, and moving the display unit relative to the head mount unit such that a position of the display unit varies with respect to the eyes of the user.

Abstract: A display device includes: a display panel including a light emitting element and a photosensitive element; an input sensor comprising a sensing electrode on the display panel; and an anti-reflection layer on the input sensor. The anti-reflection layer includes: a light shielding pattern having a first opening corresponding to the light emitting element and a second opening corresponding to the photosensitive element. The sensing electrode includes a plurality of line portions, the plurality of line portions includes a first line portion overlapping the light shielding pattern and arranged between the first opening and the second opening on a plane. S distance between the first line portion and an edge of the second opening is less than a distance between the first line portion and an edge of the first opening.

Abstract: The present disclosure relates to a system and a method for autonomously operating a public ledger-based credential, the method including registering credential issuance authority information in a public ledger of a blockchain platform, and verifying a credential issued to a first computing device by referring to the credential issuance authority information registered in the public ledger. The credential issuance authority information includes an attribute value range assigned to a credential issuer and public key information of the credential issuer. A second computing device verifies the credential issued to the first computing device by referring to the credential issuance authority information registered in the public ledger.

Abstract: The present disclosure relates to an IoT device control system and method, including: by a user terminal, capturing an image of a real space that includes therein one or more IoT devices; when capturing the image, matching and registering at least one of a position and a posture of the user terminal with an IoT device selected by a user; displaying a control screen for the selected IoT device when the user terminal satisfies a condition, wherein the condition is determined by using at least one of the position and the posture of the user terminal matched and registered with the selected IoT device; and controlling the selected IoT device according to a user input received through the control screen. According to the present disclosure, a user can conveniently check and control an IoT device to be controlled, by using virtual reality and augmented reality.

Abstract: The present disclosure relates to an IoT device control system and method, including: by a user terminal, capturing an image of a real space that includes therein one or more IoT devices; when capturing the image, matching and registering at least one of a position and a posture of the user terminal with an IoT device selected by a user; displaying a control screen for the selected IoT device when the user terminal satisfies a condition, wherein the condition is determined by using at least one of the position and the posture of the user terminal matched and registered with the selected IoT device; and controlling the selected IoT device according to a user input received through the control screen. According to the present disclosure, a user can conveniently check and control an IoT device to be controlled, by using virtual reality and augmented reality.

Abstract: A battery thermal treatment apparatus including, a thermal treatment part, in which a battery is transferred and thermally treated through a closed tube; and a gas handling part, which cools and performs dust collection of gas generated in the thermal treatment part, and, a method for battery thermal treatment and performing dust collection of thermal treatment gas, including, cooling and performing dust collection of gas generated during thermal treatment of a battery, which is transferred and in one direction through a closed tube, thermally treated at a temperature ranging from 400° C. to 1000° C., and discharged.

Abstract: A method for calculating distributed network nodes' contribution to a service according to the present disclosure comprises the steps of: receiving, by a server, details of contribution to a service from a plurality of nodes; verifying, by the server, the received details of contribution to a service; announcing, by the server, the verified details of contribution to a service; and using a block chain including a block that includes the announced details of contribution to a service issued by one of the plurality of nodes, calculating the one node's contribution to a service. According to the present disclosure, it is possible to calculate distributed network nodes' contribution to a service. It is also possible to separately calculate the degrees of contribution of distributed network nodes to a specific service. Further, it is possible to ensure the transparency of the details of calculation of distributed network nodes' contribution to a service.

Abstract: A method for calculating distributed network nodes' contribution to a service according to the present disclosure comprises the steps of: receiving, by a server, details of contribution to a service from a plurality of nodes; verifying, by the server, the received details of contribution to a service; announcing, by the server, the verified details of contribution to a service; and using a block chain including a block that includes the announced details of contribution to a service issued by one of the plurality of nodes, calculating the one node's contribution to a service. According to the present disclosure, it is possible to calculate distributed network nodes' contribution to a service. It is also possible to separately calculate the degrees of contribution of distributed network nodes to a specific service. Further, it is possible to ensure the transparency of the details of calculation of distributed network nodes' contribution to a service.

Abstract: A battery thermal treatment apparatus including, a thermal treatment part, in which a battery is transferred and thermally treated through a closed tube; and a gas handling part, which cools and performs dust collection of gas generated in the thermal treatment part, and, a method for battery thermal treatment and performing dust collection of thermal treatment gas, including, cooling and performing dust collection of gas generated during thermal treatment of a battery, which is transferred and in one direction through a closed tube, thermally treated at a temperature ranging from 400° to 1000°, and discharged.

Abstract: The present invention relates to a data mediation system and method. The data mediation system according to the present invention comprises: a plurality of things or devices; a consumer terminal registering data processing rules for generating customized data; and a data mediation server for generating the customized data by applying the data processing rules to data collected from the plurality of things or devices. According to the present invention, various pieces of data and information, which are generated during a service process through the things or devices and a web service mashup, are processed as various types of data and information so as to be mediated between a supplier and a customer.

Abstract: The present invention relates to a method of controlling a device remotely and includes: transmitting a device selecting signal; receiving a response signal from a device to be controlled that receives the device selecting signal; identifying the device to be controlled by using the response signal; changing at least one of an angle of beam spread and direction of the device selecting signal if the identified device to be controlled is two or more in number; and generating a remote control signal by using device control information corresponding to the identified device to be controlled and transmitting the generated signal to the device to be controlled.

Abstract: The present invention relates to a method of controlling a device remotely and includes: transmitting a device selecting signal; receiving a response signal from a device to be controlled that receives the device selecting signal; identifying the device to be controlled by using the response signal; changing at least one of an angle of beam spread and direction of the device selecting signal if the identified device to be controlled is two or more in number; and generating a remote control signal by using device control information corresponding to the identified device to be controlled and transmitting the generated signal to the device to be controlled.

Abstract: An information apparatus having an RFID tag and a control method thereof. The information apparatus includes the RFID tag part which comprises an RF receiver receiving an external RF signal, an RF transmitter transmitting an RF signal to outside, a logic part performing controlling and comparison, and a tag memory storing data; and a controller which stores a digital content provided from outside by directly accessing to the tag memory without passing through the RF receiver and the RF transmitter. Accordingly, the digital content stored to or reproduced at the information apparatus is easily transferred and stored to the personal device having the RFID reader and then used. Thus, the utilization of the digital content can be drastically enhanced.