Maintaining synchronization of encryption processes at devices during transmission of encrypted data over a communication link is provided. Cipher link maintenance characters are sent from a source device to a sink device. A local cipher link maintenance character generated at the sink device for decrypting the encrypted data can be adjusted according to the cipher link maintenance character. After authentication, cipher link maintenance characters corresponding to units (e.g., frames) of the encrypted data are sent along with the units of the encrypted data. When a transmission error occurs during transmission of the encrypted data, cipher link maintenance characters can be used to correct the error in a local cipher link maintenance character generated at the sink device. Hence, even if the transmission error occurs in the communication link, the sink device can resolve the transmission error and maintain the synchronization of encryption processes at the source and sink devices.

Disclosed is an electronic device comprising: a housing; a display disposed on one surface of the housing; a cover comprising a first area on which a plurality of input objects are disposed and a second area on which a transparent panel is disposed, wherein the cover is disposed such that at least a portion of the display can be openably and closably covered, and is configured to provide at least a first arrangement state or a second arrangement state; and a processor which is electrically connected to the display, and is set to output a first screen associated with a first security function on an area of the display corresponding to the second area in the first arrangement state, and to output a second screen associated with a second security function on at least a portion of the display in the second arrangement state. Other various embodiments identified in the specification are also possible. Besides, it may be permissible to prepare other various embodiments speculated through the specification.

Provided is an information processing apparatus, including: a line-of-sight detection unit configured to detect lines of sight of a plurality of users with respect to presentation information; and an area determination unit configured to determine, on the basis of the detected lines of sight of the plurality of users, a shared area that is visually recognized by the plurality of users to share information and a confidential area that is not visually recognized by another user to keep information of each user confidential.

An electronic device and method are disclosed herein. The electronic device includes a display, a biometric sensor, and at least one processor. The processor implements the method, including: when a touch input is detected to the display within the biometric sensing area, increase a brightness of a first pixel group within the biometric sensing area to a first brightness level, and execute at least one of maintaining and changing display of a second pixel group outside the biometric sensing area and, wherein the at least one of maintaining and changing display of the second pixel group includes one of: executing a black state in which display through the second pixel group is disabled, and changing a display attribute for the second pixel group such that a load on the second pixel group is reduced.

A projector includes: a connection unit which connects to a network; a storage unit which stores connection information used for connection to the network; a projection unit which projects an image on a projection surface; a first projection control unit which projects a first identification image, with a direction of projection by the projection unit changed to a plurality directions; an image pickup unit which picks up an image of the projection surface; a first detection unit which detects a second identification image projected in an image pickup area of the image pickup unit by another projector, from the image picked up by the image pickup unit; and a second projection control unit which projects a third identification image showing the connection information stored in the storage unit, with the direction of projection being a direction corresponding to a position where the second identification image is detected.

An electronic device is provided. The electronic device includes a processor configured to execute an application, and a display configured to display a first window corresponding to the application, wherein, in response to a specified event, the processor is further configured to adjust a transparency of the first window and to output, to a lower layer than a layer of the first window, a second window overlapping at least a part of an area of the first window.

Embodiments of the invention are directed to a system, method, or computer program product for creating a communicable linkage for information retrieval and notifications between devices. In this way, the invention identifies a mobile device at an entity location. The system may integrate into the mobile device and present an interactive display onto the display of the mobile device, allowing the user to select products/services associated with the entity. Based on the general interaction and selection a user makes via the mobile device, the system identifies the interaction and presents interaction data to the entity representative at the entity location for assisting the user.

The present invention relates to a content providing system, a receiving apparatus and method, a storage medium, and a program, which enable to perform a variety of contents provisions. An operational terminal 21 can obtain, from a storage terminal 1, contents corresponding to utilization information sent from an operational terminal 11 that is receiving provision of predetermined contents from a storage terminal 1. That is, if a user 23 is interested in contents that a user 13 is watching and listening to on the operational terminal 11, and desires to watch and listen to it, the user 23 can watch and listen to on the operational terminal 21, the contents that the user 13 is watching and listening to, by holding the operational terminal 21 very close to the operational terminal 11, or holding the operational terminal 11 very close to the operational terminal 21.

An image processing apparatus includes: a first image acquiring unit configured to acquire a first image stored in a storage unit; a second image acquiring unit configured to acquire a second image from a visual image input from an external device; an image determining unit configured to determine that the second image is to be displayed without displaying the first image when the visual image does not satisfy a predetermined condition, configured to determine that the first image and the second image are to be displayed when the visual image satisfies the predetermined condition, and configured to determine that the first image is to be displayed when the visual image is not input; an image superimposing unit configured to superimpose the first image with the second image; and a display unit configured to display the first image and the second image.

A method for a touchscreen mobile device (35) to control a remote display device (31), where the touchscreen comprises a touch sensitive input layer and an internal display for displaying an image of the main screen of the mobile device (35) showing one or more applications that the mobile device (35) is executing. When the mobile device (35) is connected to the display device (31), the mobile device (35) enters a display mode in which the mobile device (35) transmits the image to the display device (31) for display on the display device (31) and does not displace the image on the internal display, but maintains the touch sensitive input layer operational to enable the mobile device (35) to be used as an input/output device with which a user can interact using the touch sensitive input layer, such as a keyboard (34), game controller or other input device, such as a trackpad to sense movement of one or more fingers of a user across the touch sensitive input layer for controlling a cursor.