Radar apparatus

Details Radar apparatus Radar apparatus

1991-01-23

1991-12-31

Hellner, Mark

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

Display

342177, G01S 704

Patent

active

050775596

ABSTRACT:
A radar apparatus of the present invention comprises an image preservation memory capable of preserving pixel data, preservation request means by which a user may request the preservation of the image, and read request means for requesting the readout of the image. When the preservation is requested by the preservation request means, the image at that moment is stored in the image preservation memory, and when the readout is requested by the readout request means, the image read from the image preservation memory is superimposed on the image at that moment so that the image at the moment of the request for preservation by the user is displayed concurrently on the same screen as that of the current image. Thus, the user can easily detect an error between the position of the transmitting station on the preserved screen and the current position and can move back a ship to the original position quickly and with a very small error.

REFERENCES:
patent: 3899769 (1975-08-01), Honore et al.
patent: 4612544 (1986-09-01), Da Silva et al.

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