Abstract: A method and a device for monitoring a region (R) in which a carrier (100) is located, which device comprises a display unit displaying a polar plot (10) having a center symbolizing the current position of the carrier (100) and in which there is placed a first moving-body symbol (1, 2, 3) representing the current position of the moving body (101, 102, 103); the polar plot (10) being surrounded by an annular band (20) of width (l) representing a predetermined monitoring duration and containing second moving-body symbols (1?, 2?, 3?) representative of successive angle readings of the path of said moving body (101, 102, 103).

Abstract: A system and method for presenting wind speed information in a manner so as to be easily understood and appreciated by viewers of televised weather report presentations and the like. Wind speed information is presented as a planar representation of three-dimensional wind speed data using contour lines, delineating areas with a planar location in the three dimensional data, overlaid on a geographic map display either alone, or in combination with radar reflectivity information. Wind velocity information received from a weather radar system, such as NEXRAD, relative to the weather radar is converted to absolute wind speed information for display.

Abstract: A method (400), a system and a computer program product are disclosed for graphically displaying air traffic control information in an air traffic control system. Information about objects in an air traffic control environment is compiled and calculated (410). Tokens (e.g., text, icons, images, or other symbols) corresponding to the objects in the air traffic control environment are displayed (420). At least two objects are selectively designated (430) in combination as a source object and a target object connected by a bearing and range line token (210, 220, 230, 240). Air traffic control information (212, 222, 232, 242) about the combination of objects associated with the bearing and range line token dependent upon the combination of objects designated in the combination is displayed (440). The displayed air traffic control information is required decision making information to enable an air traffic controller to manage air traffic.

Abstract: A system and method for presenting wind speed information in a manner so as to be easily understood and appreciated by viewers of televised weather report presentations and the like. Wind speed information is presented as two or three-dimensional wind speed contour lines, delineating geographic areas corresponding to different wind speeds, overlaid on a geographic map display either alone, or in combination with radar reflectivity information. Wind velocity information received from a weather radar system, such as NEXRAD, relative to the weather radar is converted to absolute wind speed information for display.

Abstract: A method of displaying areas of turbulent weather is disclosed. Data is processed representative of weather conditions within a predefined area. Weather conditions are displayed on a display. Turbulence is detected within the predefined area. A level of the detected turbulence is detected. First graphical elements are superimposed upon the display of weather conditions when the level of the detected turbulence is less than a predetermined amount. A second graphical element is displayed upon the display of weather conditions when the level of the detected turbulence is more than the predetermined amount.

Abstract: An airborne weather radar system that detects potentially hazardous weather conditions associated with storms and includes a radar display featuring visual indications of these conditions. The radar display includes a vertical situation display having iconal representations and symbolic icons indicative hazardous weather conditions and aviation hazards along the aircraft's flight path not otherwise immediately apparent or shown on standard weather radar displays. The system includes processes for detecting and predicting hazardous weather conditions such as overshooting thunderstorm tops and vaulted thunderstorm energy and serious hazards such as turbulence and hail.

Abstract: A display system is disclosed for displaying air traffic symbology from a plurality of different types of air traffic surveillance systems on a single monitor. A display device includes a processor for generating display symbology from TCAS, SKE and ADS-B information, and a monitor for displaying the generated symbology in a uniform format.

Abstract: A method is provided for determining the integrity of incoming target data and for assigning and displaying a target icon correlated to the target data integrity. Target data integrity depends on the both accuracy and the timeliness of the position data being broadcast about the target. Target data integrity is monitored continuously to display a target icon correlated to the current integrity level. Changes in the target icon alert the flight crew or other user to changes in target data integrity. The icon attributes used to communicate a change in integrity do not interfere with other icon attributes used to communicate other characteristics of a target.

Abstract: In one aspect of the invention, a radar apparatus can supervise a target easily which should be observed by an enlarging display without any complicated operation.

Abstract: A three-dimensionally designed display radar in which a two-dimensional image data and three-dimensionally designed image data are depicted in combination in a video memory by the aid of an image controller, and they are simultaneously depicted on a screen of a display unit.

Abstract: A radar scan converter and method of mixing image. By inserting a radar scan converter (RSC) card in a personal computer, an input video such as a radar video or supersonic video can be mixed on a screen of the personal computer without deteriorating the current graphic, such as range rings, plots, tracks, and symbols. An analog-to-digital converter, a radial buffer, a decimation filter, a coordinate converter and an overlay processor are used in the radar scan converter. The overlay processor read a display memory on a display card according to a triangular coordinate generated by the coordinate converter. The read data from the display memory is then compared. When the read data do not contain either text or graphic, a data processed by the decimation filter is written into the display memory.

Abstract: A ship track and underwater conditions indicating system for displaying a ship track and the underwater conditions under the ship track at the same time on the screen of an indicator, and for associating the two resultant pictures with each other. The ship track and the underwater conditions are respectively displayed on two corresponding portions of the face of the indicator by dividing the screen into two parts. Also, the ship track or the underwater conditions are selectively indicated on the whole screen of an indicator at different times.

Abstract: In an infra-red surveillance system, a digital memory (1) has a storage location for each of a number of zones, defined by azimuth and elevation co-ordinates, the zones together covering 360.degree. in azimuth and 20.degree., for example, in elevation. In each location there is stored a data word built up from the responses on a zone in successive scans. Each word can be read into a decoder (5) which selects an appropriate video display level in the form of a two-bit word which is then stored in a buffer store (6). A buffer store data controls the display on a cathode ray tube (2). A manually controlled cursor circuit (8) generates a cursor address which results in a cursor display at the corresponding position on the cathode ray tube. The display is in the form of four strips, one above the other, each representing a quadrant of azimuth.

Abstract: A probe acquisition and display system is disclosed featuring one simple trol for acquiring, tracking, and instantaneously locking for a missile control radar. The system provides for fast initial target acquisition and re-acquisition in the presence of intentional or unintentional interference. A dual trace oscilloscope display is provided with radar tracking (range) gate and a probe is used to touch a target on the display by a radar operator.

Abstract: A marine radar has a screen on which is displayed a radar image and several representations of the different control functions of the radar such as range, gain and sea clutter setting. The radar also has a key pad with three keys and a tracker ball that is connected to the radar control unit. The control unit generates a marker on the screen that is movable by the tracker ball. To change one of the control functions, the tracker ball is displaced until the marker moves into the region of the representation of the appropriate control function. The control unit then produces three boxes on the screen below the control function to indicate the different options available for that function. The user can select the desired option by pressing the appropriate one of the three keys.

Abstract: Herein disclosed is a radar system having a function for setting a watch alarm region, which function has been improved in operability. A region displayed in a display part surrounding the radar system is divided by two border lines. One region, for example, a region having a smaller angle contained by the two border lines, is controlled to be set as the watch alarm region in accordance with the first setting instruction from a user, the other region is next controlled to be reset as the watch alarm region when receiving the second instruction from the user within a predetermined time period. Thus, the user may select one between the divided regions as desired, through easy operations. If a wrong region has been selected as the watch alarm region, differently from the user's will, the mistake may be readily corrected.

Abstract: A navigation aid is provided comprising a radar antenna, a position sensor, a compass, map/chart data, a display, and a controller. The controller determines whether the display depicts a chart, a radar sweep or both. Preferably, the visual navigation aid includes a point of interest feature, wherein at least one point of interest is visually selected on the chart or radar sweep by a cursor or the like. The controller also computes the location of the selected point of interest for display on the chart or radar sweep. In another aspect, the invention comprises methods for inputting and displaying a point of interest on a chart or radar sweep.