A key function execution method includes: displaying a virtual keyboard; displaying, in response to detecting that a hand is in a target gesture, a cursor at a first position according to a biometric feature of the target gesture; displaying, in response to the hand making a movement while keeping the target gesture, that the cursor moves with the movement of the hand; and executing, in response to a change in a gesture of the hand, a function of a key corresponding to a second position of the virtual keyboard, the second position being a position where the cursor is located when the gesture of the hand changes.

A display device includes: a display, a communicator comprising communication circuitry configured to communicate with a mobile device, a memory storing one or more instructions, and a processor configured to execute the one or more instructions stored in the memory to: control the display to display a second screen corresponding to a first screen output on the mobile device and an indicator based on the display device mirroring a screen of the mobile device, control the communicator to receive object information regarding one or more objects included in the first screen from the mobile device, and to control movement of the indicator based on the object information and the control signal, in response to receipt of a control signal including interaction information regarding the indicator.

A desktop controlling method is provided. The desktop switching function is selectively enabled according to the result of detecting whether a cursor is located at a border of the current desktop and the result of detecting whether a desktop switching signal. Consequently, the desktop switching function can be achieved through the mouse only. That is, it is not necessary to operate both of the mouse and the keyboard to achieve the desktop switching function. Moreover, the background colors of the virtual desktops can be set by the user according to the practical requirements. Consequently, the virtual keyboard to be switched can be easily recognized by the user.

The present disclosure relates to storing spectroscopy data in layers, including a system having a sensor to generate raw spectroscopy data for an object, a processor to process the raw spectroscopy data in stages to generate multi-stage data using intermediate data at individual stages, and a database to store the intermediate data for individual stages as a multi-dimensional array in an array data model.

An electronic apparatus and a page navigation method thereof are provided. The page navigation method includes obtaining first navigation information from a first information source, and obtaining second navigation information from a second information source, generating a first page navigation command based on the first navigation information, and generating a second page navigation command based on the second navigation information, and executing the first page navigation command and the second page navigation command.

Provided are a display apparatus and a display method. The display apparatus includes: a display configured to provide a plurality of item areas each of which displays at least a part of an item list including a plurality of items, wherein the display provides at least one item area, among the plurality of item areas, as a closed item area and provides at least one item area, among the plurality of item areas, as an open item area; and a controller configured to control the display to, in response to an input of a control apparatus that selects the closed item area, display at least some items of an item list corresponding to the closed item area on the open item area and to display at least some items of an item list corresponding to the open item area on the closed item area.

A display system includes a head-mounted display device and an input device for operating the head-mounted display device, being mounted on an arm or a leg of a user and having a movement detection unit that include a sensor which detects a movement of the arm or the leg. When the movement detection unit detects a predetermined movement, the input device operates the head-mounted display system to switch into an operation acceptance mode.

Provided is a method of providing a document editing service based on a block editor, and a server and a computer program for executing the same, and the method includes the steps of: setting, for a first block in which a cursor indicating an editing position is positioned among the plurality of blocks, an attribute of a content element corresponding to the first block to a first value; receiving a user input for the cursor and confirming a moving direction of the cursor; setting an attribute of a content element corresponding to a second block among blocks adjacent to the first block to a first value, and setting an attribute of a content element corresponding to a third block to a second value, based on the moving direction of the cursor; and processing to move the cursor to the second block on the edit screen.

In some embodiments, a system may process a user interface to identify textual or graphical items in the interface, and may prepare a plurality of audio files containing spoken representations of the items. As the user navigates through the interface, different ones of the audio files may be selected and played, to announce text associated with items selected by the user. A computing device may periodically determine whether a cache offering the interface to users stores audio files for all of the interface's textual items, and if the cache is missing any audio files for any of the textual items, the computing device may take steps to have a corresponding audio file created.

In some embodiments, a system may process a user interface to identify textual or graphical items in the interface, and may prepare a plurality of audio files containing spoken representations of the items. As the user navigates through the interface, different ones of the audio files may be selected and played, to announce text associated with items selected by the user. A computing device may periodically determine whether a cache offering the interface to users stores audio files for all of the interface's textual items, and if the cache is missing any audio files for any of the textual items, the computing device may take steps to have a corresponding audio file created.