JPS61114380U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a schematic explanatory diagram of the conventional display method;
The figure shows the exploration range variation, and Figures 3 and 4 are
An example of a display using a conventional display method is shown in FIG.
This is one configuration example for explaining this idea. 1, 7... Transducer/receiver, 2... Periodic signal generator,
3...Memory, 4...Sweep circuit, 5...CRT
, 6... Ship, 8... Periodic signal generator, 9... Angle detector, 10... Main memory, 11... Angle memory, 12... Sweep circuit, 13... Comparison circuit,
14... Brightness modulation signal.

Claims (1)

[Claims for Utility Model Registration] In a device that periodically sends and receives pulse-like signals and displays a search signal obtained by conducting a wide range search on a CRT, the device comprises: a) dividing the search signal in accordance with the temporal order; (b) An angular position storage means (corresponding to the above-mentioned search on the CRT) that stores the search direction or position at the time of the division in the memory in correspondence with each block; d) a detection means for detecting coincidence between the sweep direction or position of the sweep display means and the exploration direction or position stored in the angular position storage means; and (e) readout and display means for reading out the stored contents of a corresponding block among the blocks corresponding to the detection when the detection means detects a match, and providing it as a display signal to the CRT; A PPI display device, characterized in that it is possible to reduce display fluctuations due to shaking of equipment of the device.