SU1343439A1 - Video signal forming device - Google Patents

Abstract

The invention relates to the field of computer technology, automated control systems and can be used to visually display arrays of information. The purpose of the invention is to expand the field of application of the device by modifying the generated information on the content and improving the speed and reliability of the device is achieved by modifying selected areas of the fragments or zones of the displayed array, specified with a set of addresses, without reading the content and analyzing it using a computer, and more - faded areas without changing their color and brightness, erasing or changing only marked or only unmarked areas, erasing or and Changing the glow of comments, axes, coordinates, etc. against the background of measurement information and vice versa, etc. 1 il. with $ (L with SL 4 00 4 00 WITH

Description

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The invention relates to computing and can be used to visually display arrays of information.

The purpose of the invention is to expand the field of application of the device by modifying the generated information on the content and increasing the speed and reliability of the device.

The drawing shows the functional diagram of the device.

The device contains a block of memory 1 in which the codes of illumination of the elements of the displayed information array are stored, the first register 2, the generator of 3 pulses, the second register

4, digital to analog converter

5, third register 6, trigger 7, element AND 8, element OR 9, fourth

10 and fifth 11 registers, 12 comparison block and multiplexer 13, In addition

the first 14, the second 15, the third 16, the fourth 17, the fifth 18 and the sixth 19 inputs and the output 20 of the device, as well as the monitor 21.

The device works as follows.

Tsodlight codes are received from an external controller (not shown) at input 15 of register 6, followed by addresses for recording, which are fed to input 14 of register 2. Each code is recorded by excitation of a generator of 3 pulses at input 17 through element SHIII 9. During filling the memory block 1 with the illumination codes of the elements of the displayed array, multiplexer 13 switches through register 10 to the mode in which the illumination codes from the outputs re-. gistra 6 is delivered unchanged to the information input of memory unit 1. Such a relativity of operation of the multiplexer 13 is established for the entire time of the filling of the memory block 1 by pre-recording in the register 10 of the corresponding code from the external controller on the input 18.

During the observation of the displayed information array, the illumination codes successively appear at the information output of the memory block 1 and through the digital-to-analog converter 5 arrive at the output of the device and the input of the monitor 21, on the screen of which the image is reproduced.

The analyzed source image, as a rule, has a complex x2.

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Racter, i.e. consists of several fragments, for example: a calod fragment corresponds to a specific source of information and can be changed and processed independently of other fragments; a separate fragment may consist of separate zones, the processing of which must be performed independently of each other, the image consists of a variable fragment superimposed on each other, related to the source of information, and a permanent fragment (coordinate axes, symbols, etc.) information), the image consists of a changeable piece of measurement information and a changeable piece of auxiliary information, and when they are superimposed, the priority of one of them or the independent change of gmentov, et al.

During image processing (an array of displayed information), the allocated areas of fragments or zones in fragments either already have a common feature, which is part of their highlight codes, or must be marked with a common feature. This feature is then used as a criterion for selecting the illumination codes in image processing. In this case, there are two possible processing modes: the addresses of the elements of the selected zone or fragments are known, the addresses of the set of the selected elements are unknown.

In the first mode, the device operates as follows.

Beforehand, the code of the feature by which the selected elements are selected is recorded into the register 11 in the controller 1, and the control code with which the necessary method of modifying the selected elements is established in register 10. The addresses of the elements are successively received at input 14 in register 2, each address being accompanied by a generator starting pulse 3 (read-write cycles) at input 17 through an OR element 9. As a result of the memory 1 being excited, the illumination codes ele

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cops, to which there was an appeal. Using the comparison block 12, the illumination codes are matched with the code of the feature located in register 1 1.

Comparison unit 12 is a logic circuit and matches the illumination codes of elements and the feature code based on criteria such as equal, not equal, greater than, greater than or equal, less than within, etc. All bits of the code can participate in the comparison. illumination or part of bits When the specified comparison criterion is satisfied, the signal from the output of the comparator unit 12 enables the operation of the multiplexer 13, the input of which receives the contents of the element that was currently being accessed from register 4 and the input information from register 6, which can be constant for the whole array or individual for each array element, the code from the output of multiplexer 13 goes to the information input of memory block 1 and is written instead of the read element.

The multiplexer 13 performs several types of operations, for example, it transfers only input information from register 6 to the input of memory block 1, or transfers the contents of the element from register 4 again, or transmits part of bits from register 6, and part of bits from register 4, or forms a logical function between the contents of these registers, etc. The type of modification is determined by the control code previously recorded in register 10.

Thus, in the considered mode, modifications can be made to selected sections of fragments or zones of the array being imaged, specified by a set of addresses, without reading the contents and analyzing it using a computer.

In the second mode of operation of the device, the same operations are performed as in the first, however, the addresses of the elements of the array do not come from an external controller, but are generated by register 2 in incremental mode. In this case, either the entire displayed array or its part can be processed, starting with a certain starting address. The input information recorded in register 6 is common to the whole array.

This mode is resolved after translating trigger 7 into one state: by energizing input 16

from an external controller. In this case, the resolving potential from the output of the trigger 7 is fed to the input of the element And 8, preparing it for subsequent work. The starting address (maybe zero) of the array is written to register 2 at input 14. The start pulse, the maintainer is initial

the address, through the element OR 9, excites the generator 3, after which all the operations on processing the selected initial element are performed, as in the first mode. The difference is

that at the end of the read cycle, the output signal of the generator 3 through the open element 8 is fed to the incremental input 22 of register 2, increasing its content by one, and

also through the second input of the element OR 9 the generator 3 starts up again, processing the next element of the array. This process continues until the register overflow signal 2 from its output clears O into trigger 7.

Thus, in the proposed device, as quickly as possible, without using a computer for analyzing the content of the array elements, the following actions can be performed: marking selected areas without changing their color and brightness, erasing or changing only marked or only unmarked sections, erasing or changing luminous comments, coordinate axes and so on against the background of measurement information and vice versa, etc.

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Claims (1)

Invention Formula five five A device for generating video signals containing a memory block whose address input is connected to the first output of the first register, the first input of which is the first input of the device, the control input of the memory block is connected to: the first output of the pulse generator, the output of the memory block is connected to the inputs the second register and digital-analog converter, the output of which is the output of the device, the third register, the input of which is the second input of the device, with the aim of expanding the field of application device by modifying the generated information on the content and improving the speed and reliability of the device j it contains a series-connected trigger, the first input of which is the third input of the device, the second input is connected to the second output of the first register, the element I, whose second input is connected to the second the output of the pulse generator, and the output is connected to the second input of the first register, and the OR element: whose second input is the fourth input of the device, and the output is connected to the input of the generator pulses, the fourth register, the input of which is the fifth input of the device, and a serially connected fifth register, whose input is the sixth input of the device, a comparison unit, the second input of which is connected to the output of the second register, and a multiplexer, the second, third and the fourth inputs of which are connected respectively to the outputs of the second third and fourth registers, and the multiplexer output is connected to the information input of the memory block. Compiled by S. Grishin Editor I. Nikolaychuk Tehred M. Didyk Order 4827/51 Circulation 433Subscribe VNIIPI USSR State Committee for Science and Inventions and Discoveries 113035, Moscow, Zh-35, 4/5 Raushsk nab. Production and printing company, Uzhgorod, st. Project, 4 Proofreader M.Maksimishinets