A mobile device and a method of controlling a docking device by the mobile device are provided. The method of controlling the docking device by the mobile device according to the present disclosure includes: connecting to the docking device, the docking device including a projector and a keyboard device; setting, as the mobile device connects to the docking device, the projector as an output unit for the mobile device and the keyboard device as an input unit for the mobile device; receiving, from the docking device, an input signal provided via the keyboard device included in the docking device; and transmitting, to the docking device, output image data generated based on the received input signal, wherein the output image data provided to the docking device is projected outside the docking device via the projector.

A disclosed example method to display information from a computer system includes: accessing peripheral display information in a designated peripheral display area of a frame buffer memory in response to detecting a presence of the peripheral display information, the designated peripheral display area being a subarea of the frame buffer memory, the sub-area covering less than an entirety of a main screen of a monitor; displaying, via a peripheral information display device, the peripheral display information from the designated peripheral display area of the frame buffer memory, the peripheral information display device being separate from the main screen; determining user input coordinates based on a user interaction with the peripheral display information; updating the peripheral display information from a computer to the frame buffer memory; and displaying the updated peripheral display information from the designated peripheral display area of the frame buffer memory via the peripheral information display device.

The embodiment of the present disclosure provides an electronic device including a main body, a flexible screen, and a processor, the main body being a reel structure; the flexible screen being selectively in a first state wound inside the main body and a second state being released from the main body, the processor being configured to control the flexible screen to be changed between the first state and the second state in response to operation instructions applied on the main body or the flexible screen.

A projector includes a communication section that accepts image information supplied from an image supplying apparatus, an image projection section that displays an image based on the image information on a display surface, a detector that detects a pointing position on the display surface at which a light emitting pen is pointing, a drawn image generator that generates a drawn image based on the pointing position detected by the detector, a display controller that causes the image projection section to display the drawn image, and a storage that stores the drawn image in association with the IP address. In a case where the image supplying apparatus, which supplies the communication section with the image information, is changed, the display controller reads the drawn image corresponding to the IP address of the changed image supplying apparatus from the storage and causes the image projection section to display the read drawn image.

A display control device includes a first display control unit that displays an image on a touch panel, a second display control unit that displays an image in a visual field of an operator of the touch panel using a head-up display, and an indicator position recognition unit that recognizes the position of the indicator used for an operation of the touch panel. The first display control unit includes an operation button position control unit that controls a display position of an operation button in the touch panel. The operation button position control unit brings the display position of the operation button close to an indicator when the indicator approaches the touch panel. The second display control unit displays a synthesized image of an image being displayed on the touch panel and an image indicating the position of the indicator in the visual field of the operator.

An electronic pen includes: a communication unit which communicates with a communication target apparatus; a state detection unit which detects a state of the electronic pen decided by a relation with the communication target apparatus; and a control unit which changes an operation of the communication unit according to the state detected by the state detection unit.

An interactive projector includes a projection unit, a plurality of cameras, a position detection unit that detects a position of the pointing element with respect to the projected screen based on a plurality of images including the pointing element of which the image is captured, a function calculation unit that calculates a curved-surface function representing a three-dimensional shape of the projected screen based on a captured image including a specific image captured when the specific image is projected, and a contact detection unit that detects contact of the pointing element with the projected screen using the position of the pointing element detected by the position detection unit and the curved-surface function calculated by the function calculation unit, and the function calculation unit detects three-dimensional positions of a plurality of reference points, on the projected screen based on the captured image including the specific image and calculates the curved-surface function.

An example processor-implemented method for generating corners of a display area is provided. The method comprises detecting a dominant line for each side of the display area, each dominant line used to identify corners, detecting subline segments on each side of the display area, determining a distance between the corners identified by the dominant lines and the sub-line segments on each side, and generating the corners of the display area based on the distance.

Techniques are disclosed for purchasing, accessing, and/or providing electronic content by a projection based eReader. In accordance with one embodiment, a projector system is provided that is configured to engage a lighting socket and can be controlled by, for example, a remote control and/or imaged user input actions. Power to the system can be received through the socket based interface. The techniques can also be used in non-socketed configurations. The system is capable of creating large images suitable for reading large publications, such as newspapers or magazines, but can generally be used for any type of content including small print. In some embodiments, the system projects an image onto a lightweight, rigid screen that can be held by an individual that is situated in the area near the projection system.

Techniques are disclosed for purchasing, accessing, and/or providing electronic content by a projection based eReader. In accordance with one embodiment, a projector system is provided that is configured to engage a lighting socket and can be controlled by, for example, a remote control and/or imaged user input actions. Power to the system can be received through the socket based interface. The techniques can also be used in non-socketed configurations. The system is capable of creating large images suitable for reading large publications, such as newspapers or magazines, but can generally be used for any type of content including small print. In some embodiments, the system projects an image onto a lightweight, rigid screen that can be held by an individual that is situated in the area near the projection system.