SU1758905A1 - Device for generation of digital video signals from location objects - Google Patents

Abstract

The invention relates to a data display technique and can be used in geophysics, sonar and acoustic tomography and flaw detection. The aim of the invention is to increase the amount of generated information about the amplitude and phase of each video sample. A device for generating digital video signals from location objects contains an information source 1, an interface 2, a synchronization unit 3 consisting of a clock generator 4, a row element count 5 and a row counter 6, an addressing block 7, a memory block 8, three decoders 9, 10 and 11, a block of comparison of codes 12, an element of OR 13, an element of OR-NOT 14, a block of elements of AND 15 and a converter of code 16. The goal is achieved by the introduction of three decoders 9, 10 and 11, a block of comparison of codes 12, of an element of OR 13, of an element of OR -NE 14 and block elements AND 15. 2 Il.

Description

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The invention relates to a data display technique and can be used in geophysics, sonar, radar, acoustic holography and flaw detection.

A device is known that contains a memory block with a memory capacity of one image frame in which three-bit color information is recorded, a matrix arithmetic unit that generates luminance codes, coordinates and colors, an arithmetic display unit. The device makes it possible to determine the basic tint prevailing in the invention. The drawback of the device is a reduction in the amount of information, since the generalized color characteristics are calculated.

As a prototype, a television indicator is selected that contains a synchronization unit, an information source, an interface, a memory unit, an addressing unit, and a code converter.

The synchronization unit in the prototype provides sync. 1izatsiya work all nodes among themselves and with the source of information. The source of information can be information-measuring devices, keyboard input alphanumeric information. Computer, devices for the formation of film and television images.

The interface provides mechanical, electrical, and algorithmic matching between the input circuits of the display device. The memory unit serves for intermediate storage of information, which makes it possible to coordinate the operation of the information display device and the speed information source. The addressing unit specifies the position (address) of the input information element in the information field. The code converter translates the codes of the elements of input information specified by the alphabet of information sources into the code defined by the alphabet of the video monitor.

The device prototype works as follows.

The information array together with the address codes from the information source through the interface enters the memory block by the two-coordinate principle (there are horizontal and vertical addresses of the record). In read mode, information is read from the memory block element by element in synchronization with the scanning line and line by line synchronously with the scanning frame. Multipath digital information is converted by a code converter into a set of video signals and displayed on the video monitor screen.

The disadvantage of the prototype device is that it can provide information with a maximum of three dimensions (screen length, screen width, brightness

or color). Geophysical information has at least five measurements: length, width, depth, amplitude, phase, which the prototype device cannot indicate in the state. In addition, there are no generalized classification features in the image.

The purpose of the invention is to increase the amount of generated information about the amplitude and phase of each sample of the video signal.

To accomplish this goal, three groups of hardware tools are introduced into a device for generating digital video signals from location objects.

one). Funds for organizing m bands and

dividing lines between them and building amplitude histograms. These include the first decoder, the code comparison unit, and the OR element; the low-order code is sent to the first decoder.

the code of the element counter of the row synchronization block, while the decoder from each a / t elements of the row selects one element (for example, the last one) element.

The entry is the lowest bits of the row counter code, and the second input is the code of the amplitude of the reference of the information signal from the first memory sub-block. The low-order codes of the row counter are the addresses of the 1 / M st lines.

parts of the screen vertically. As soon as the line number becomes larger than the amplitude code, a logical 1 signal appears at the output, illuminating the histogram column on the screen. The separator line signal and the histogram column signal are combined in the OR element.

2). Means for coloring histograms and dividing lines according to phase information. To them

relates to the second subunit of the memory block, in which the code of the phase of the reference is written, the code converter and the block of K elements And, For the usual television color display, the code converter has

three outputs for the number of color spotlights (red K, green G, blue B) for a special television display in which the color is selected using the K-bit code, the code converter has K outputs. In the block of K elements And the imposition of a color code on the signal of the histogram and the dividing line, the color code for the specified spatial coordinates is fed to the video monitor.

3). Means for visually separating the image into N rectangular areas. These include the second and third decoders and the element OR NOT. The second decoder receives the codes of the middle and high bits of the counter of the synchronization unit row elements and the decoder selects vertical dividing lines of a given width, the third decoder receives the code of the row counter and the decoder selects horizontal dividing lines. These signals are combined in the OR element. NOT and arrive at the block of elements AND to prohibit the passage of signals to the video monitor during dividing lines,

The essential difference between the claimed device and the prototype is the presence of additional blocks in it: the first, second and third decoders, the code comparison block, the OR element, the OR-NOT element, a block of K And elements and the corresponding links.

FIG. 1 shows a functional diagram of an apparatus for generating digital video signals from location objects; in fig. 2 is a view of presenting information on a display screen.

Claims (1)

A device for generating digital video signals from location objects contains an information source 1, an interface 2, a synchronization unit 3 consisting of 4 clock pulses connected in series, a counter of 5 line elements and a counter of 6 lines. The outputs of the interface 2 and the synchronization unit 3 are connected to the inputs of the addressing unit 7, the output of which is connected to the address inputs of subunits 8.1 and 8.2 of the memory unit 8. The outputs of the synchronization unit 3 are connected to the inputs of the first, second, and third decoders 9, 10 , 11 and to the first input of the comparison block 12, to the second input of which the output of the first memory sub-block 8.1 is connected. The outputs of the first decoder 9 and the comparison unit of inputs 12 are connected to the inputs of the OR 13 element, and the outputs of the second 10 and third 11 decoders are connected to the inputs of the OR-NOT 14 element. The outputs of the OR 13 and OR-NOT 14 elements are connected to the inputs of the AND block 15, the inputs of the code converter 16 are also connected to the inputs. The outputs of the block of elements A 15 are the outputs of the device. The invention device for generating digital video signals from location objects, containing an information source, a memory unit, an addressing unit, a synchronization unit, an interface and a code converter; the output of the information source through the interface is connected to the information inputs of the memory unit and the addressing unit, respectively the addressing unit is connected to the address inputs of the memory unit, the sync inputs of which are under: are connected to the xinh input input address block and to the output of the lower-case damping synchronization unit, The interface input is connected to the clock output of the synchronization unit, the three n / .controls of the addressing units are connected respectively to the first, second and third outputs of the control pulses of the synchronization unit, the input of the code converter is connected to the first output of the memory unit, characterized in that In order to increase the volume of the generated information on the amplitude and phase of each video signal, three decoders, a code comparison block, an AND block, an OR element and an OR-NOT element, are entered, with the input of the first decoder connecting with the fourth output of the control pulses of the synchronization unit; two inputs of the second decoder are connected to the first and second outputs of the control pulses of the synchronization unit; two inputs of the third decoder are connected to the third and fifth outputs of the control pulses of the synchronization unit; the first and second inputs of the code comparison unit connected, respectively, to the fifth output of the control pulses of the synchronization unit and to the second output, the memory unit, the outputs of the first decoder and the code comparison unit through the OR element connected to the first To the left inputs of all elements AND of the AND block, the outputs of the second and third decoders through the OR element are NOT connected to the second inputs of all AND elements of the AND block, the third inputs of all AND elements of the AND element block are connected to the corresponding outputs of the code converter, ABOUT No about about No J % Ј% V // S b Y, Y / Y / S / I and Cs 7 blue green red B t 2S S & 0 HEDGEHOG aa Ј / ЫЫ E x хЗ O -v &  // L Sh VI & FIG. 2