SU1403094A1 - Device for forming intersection on television receiver screen - Google Patents

Abstract

The invention relates to the field of computing and can be used in image processing devices to form an aiming frame with varying sizes and overlapping in the center. The purpose of the invention is to expand the field of application of the device by forming an aiming frame with changing parameters, which is achieved by introducing adders 9-14 and 15-20 and comparison blocks 21-23 and 24-26, respectively, at coordinates X and Y, HE elements 27 and 28, elements AND 29-34 and element OR 35 with corresponding functional links. The invention allows, by changing the X and Y coordinate codes and the dimensions of the aiming frame P and H, to move the cross and the aiming frame and to change the parameters of the aiming frame. 3 il. S (l

Description

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The invention relates to computing and can be used. image processing devices for forming an aiming frame with varying sizes and a crosshair in the center.

The purpose of the invention is to expand the field of application of the device by forming an aiming frame with varying parameters.

FIG. 1 shows a functional diagram of the device; in fig. 2 - temporary i diagrams of operation of the comparison blocks; in FIG. 3 - diagrams of operation of imager I. The device contains a generator of 1 clock pulses, a counter of 2 lines (pulse-IcoB on the X coordinate), a counter of 3 frames (pulses on the Y coordinate), block 4 syn-; synchronization (frame and horizontal scanning), positions 5 -8 are designated, respectively; the inputs of the X coordinate, the Y coordinate, the I dimensions of the frame P, the dimensions of the frame H of the device iCTBa.

i The device also contains adders 9-14 for the X coordinate, adders 15-20 for the Y coordinate, blocks 21-23 comparisons for the X coordinate, blocks 24-26 comparisons for the Y coordinate, NOT elements 27 and 28, And 29-34 elements, element OR 35, comparators 36 and 37.

The device works as follows.

I The pulses generated by generator 1 are recalculated by counter 2 according to coordinate X, which is reset by the waste sync pulses generated by synchronization unit 4, and counter 3 is recalculated by coordinate Y. Coordinate codes | K and Y, the dimensions of the frame X-P and according to N. Action, performed by adders, are presented in Table. one.

Continued table. one

The adders compute characteristic sweep points along the X coordinate and 42-45 along the Y coordinate.

The signals produced in the comparison blocks are fed to the inputs of the AND elements, to

which formed the elements of the image. A vertical overlap element (see Fig. 3.1) is formed on the And 29 element, horizontal upper elements of the sighting frame (Fig. 3.2) are formed on the And 30 element, horizontal bottom elements of the sighting frame (Fig. 3.3) are formed on the And 31 element, and on the element And 32 - vertical right elements of the sighting frame (Fig. 3.4), on the element And 33 - vertical left elements of the sighting frame (Fig. 3.5), on the element And 34 - horizontal element to cross (Fig. 3.6).

From the outputs of the elements And 29-34 pulses of illumination of the image elements are served

to the inputs of the OR element, one of the inputs of which receives the video signal of the original image, and the output is an image mixed with a synchronized crosshair and aiming frame (Fig. 3.7J. Change the X and Y coordinate codes and the sizes P and H of the aiming frame, and sighting frame and resizing sighting frame.

Claims (1)

Invention Formula A device for generating a cross over on the television receiver screen, containing a synchronization unit, the first output of which is connected to the reset input of the row counter and the counting input of the frame counter, the second output - to the reset input of the frame counter, the counting input of the row counter connected to the output of the clock generator, two comparators AND element and OR element, one of the inputs of which is the first information input of the device, and the output of the OR element is the output of the device for connecting to the video input of the television It is characterized in that, in order to expand the field of application of the device by forming an aiming frame with varying parameters, it contains six adders and three comparison units, respectively, in coordinates X and Y, two elements NOT, the second third, fourth, fifth and sixth elements AND, the other inputs of the OR element are connected to the outputs of the AND elements, the inputs of the first and second adders and the first inputs from the third to the sixth adders, respectively, on the X and Y coordinates are the second and third information respectively E-input device, second inputs of the third through sixth adders respectively the coordinates X and Y are respectively the fourth and fifth informational input device, outputs the first and second adders X and Y coordinates are connected to the information inputs of the first comparison blocks, the information inputs of the second comparison blocks to the third and. fourth adders connected to the first To the inputs of the fifth and second elements, respectively, the information inputs of the third comparison units are connected to the outputs of the fifth and sixth adders, the control inputs of the adders in the X coordinate, and the first input of the first comparator are connected to the output of the row counter, the control inputs of the adders in the Y coordinate and the first input of the second comparator is connected to the output of the frame counter, the second inputs of the first and second comparators are connected respectively with the second and third information inputs of the device, and the outputs of the com.parator are connected with the first inputs of the first and sixth elements AND, respectively, the second inputs of which are connected respectively to the outputs of the first comparison blocks in the X and Y coordinates, the outputs of the second comparison blocks are connected to the second inputs of the second and fifth And elements and the first inputs of the third and fourth elements And, the second inputs of which 0 are connected to the outputs of the first and second elements, respectively, NOT connected to the third inputs of the second and fifth elements, respectively, and the inputs of the first and second elements are NOT connected to the outputs of the third comparison block by coordinates 5 X and Y, the third inputs of the third and fourth elements And connected to the outputs of the fourth adders in the coordinates X and Y. z I I I I I I I I I I I I MM five R  - j.r J.5 $ Sssss ss $ 3.7 Srig. s J.6 G 1