Abstract: A target object tracking device is provided. The device includes a memory for storing association information in which a selecting order of target objects is associated with symbols indicating the target objects, respectively, a starting selection accepting module for accepting a selection of the target objects to start tracking thereof, a symbol reading module for reading the symbols for the selected target objects corresponding to the selecting order of the target objects based on the association information, a tracking module for tracking the selected target objects, a symbol displaying module for displaying the symbols read by the symbol reading module, at positions where the target objects tracked by the tracking module are displayed, and a symbol changing module for changing, according to an operation of a user, the association information and displaying the symbols at the positions where the target objects are displayed, based on the changed association information.

Abstract: A radar reception device is provided. The device includes a reception signal acquirer, a signal processor, a PPI-scope generator, an A-scope generator, a display output unit, and a user interface. The reception signal acquirer acquires, in an R?-coordinate system, a reception signal received by an antenna that rotates at a predetermined cycle. The signal processor performs signal processing on the reception signal in the R?-coordinate system according to a distance, and outputs the processed signal in the R?-coordinate system. The PPI-scope generator converts the processed signal from the R?-coordinate system into an XY-orthogonal coordinate system and generates a radar image in a PPI-scope. The A-scope generator generates a radar image where the reception signal before being signal-processed is illustrated in an A-scope. The display output unit displays the PPI-scope radar image and the A-scope radar image on a display unit simultaneously. The user interface accepts a user input.

Abstract: This disclosure provides a sail assist device, which includes a wind direction sensor for measuring a wind direction, a ship position acquiring module for acquiring a latitude and a longitude of the ship, and a display module for calculating a layline based on the latitude and longitude of the ship, a latitude and a longitude of a target position of the ship, and the wind direction, with the target position being a reference, and displaying a target mark indicating the target, a ship mark indicating the ship, and the layline.

Abstract: An information display device includes a display unit for displaying, on a display screen, a first range and a second range having a display reference position same as that of the first range and being adjacent to the first range in a display area. The device also includes a controller for setting different scales for the first range and the second range and for performing a control to display perimeter information of the device in the display area having the first and second ranges to correspond to a position of the perimeter information.

Abstract: This disclosure provides an information display device, which includes a sensor signal acquirer for acquiring a sensor signal indicating a content detected by a sensor, a signal processor for performing first signal processing and second signal processing different from the first signal processing, on the sensor signal, and a display unit for displaying on a screen image, first information of the sensor signal after the first signal processing, and partial information of second information of the sensor signal after the second signal processing in a different display mode from the first information, the partial information being different from the first information.

Abstract: This disclosure provides an information display device. The information display device includes an acquirer for acquiring positional information on one or more display targets including at least one of a landmark serving as a reference mark used when a movable body is in move, another movable body, and a location registered by an operator, and a controller for displaying positional information and circumferential information on the movable body in an information display area, associating at least one of the one or more display targets of which a position is outside the information display area with a direction to which the at least one of the one or more display targets is located centering on the movable body, and displaying the at least one of the one or more display targets in an outer circumferential area of the information display area.

Abstract: This disclosure provides a sail assist device, which includes a wind direction sensor for measuring a wind direction, a ship position acquiring module for acquiring a latitude and a longitude of the ship, and a display module for calculating a layline based on the latitude and longitude of the ship, a latitude and a longitude of a target position of the ship, and the wind direction, with the target position being a reference, and displaying a target mark indicating the target, a ship mark indicating the ship, and the layline.