SU999091A1

SU999091A1 - Device for forming mutually perpendicular lines on crt screen

Info

Publication number: SU999091A1
Application number: SU813318733A
Authority: SU
Inventors: Семен Иванович Сухишвили; Венера Михайловна Еркомаишвили; Элеонора Владимировна Кавжарадзе
Original assignee: Предприятие П/Я Р-6348
Priority date: 1981-07-21
Filing date: 1981-07-21
Publication date: 1983-02-23

Description

Изобретение относитс к вычислительной технике и мйжет быть использовано при построении устройств отображени информации.The invention relates to computing and may be used in the construction of display devices.

Известно устройство дл отобргикени информации на телевизионном индикаторе , содержащее блок пам ти, счетчик и регистрг соединенные с блоком синхронизации l.A device for displaying information on a television indicator is known, comprising a memory unit, a counter and a register connected to the synchronization unit l.

Наиболее близким по технической сущности к изобретению вл етс устройство дл фоЕЯ4Ировани взаимно перпендикул рных линий на экране электронно-лучевой трубки (ЭЛТ), содержащее блок синхронизации, делитель частоты, триггеры и счетчики 2.The closest in technical essence to the invention is a device for PHOTO4 of mutually perpendicular lines on the screen of a cathode ray tube (CRT), containing a synchronization unit, a frequency divider, triggers and counters 2.

Недостатком известных устройств вл етс отсутствие возможности формировани пр моугольника (маски).A disadvantage of the known devices is the inability to form a rectangle (mask).

Целью изобретени вл етс pacioHрение области применени устройства за счет маскировани части экрана.The aim of the invention is to cover the application area of the device by masking a portion of the screen.

Поставленна цепь достигаетс тем, что в устройство дл формировани взаимно перпендикул рных линий на. экране ЭЛТ, содержащее блок синхронизации , первый выход которого с делителем частоты, подключенным к коммутаторам, соединенным со входс1ми реверсивных счетчиков выходы которых подключены к первым входам первого, второго, третьего и четвертого счетчиков, выходы третьего и четвертого счетчиков соединены со счетньми входами первого и второго триггеров соответственно , первый выход блока синхронизации подключен к суммирующим входам третьего и четвертого счетчиков The delivered chain is achieved in that the device for forming mutually perpendicular lines on. a CRT screen containing a synchronization unit, the first output of which with a frequency divider connected to switches connected to inputs of reversible counters whose outputs are connected to the first inputs of the first, second, third and fourth counters, the outputs of the third and fourth counters are connected to the counting inputs of the first and second Triggers, respectively, the first output of the synchronization unit is connected to the summing inputs of the third and fourth counters

10 соответственно, второй выход - к суммирующим входам первого и второго счетчиков, вычитающим входам третьего и четвертого счетчиков и установочным входам первого и второго т жг15 геров, третий выход блока синхронизации соединен с вычитающими входами первого и второго счетчиков, введены три элемента И, третий и четвертый триггеры и три. элемента ИЛИ, 10, respectively, the second output to the summing inputs of the first and second counters, the subtracting inputs of the third and fourth counters, and the installation inputs of the first and second meters, the third output of the synchronization unit is connected to the subtracting inputs of the first and second counters, three elements And, the third and fourth triggers and three. the element OR

20 входы первого элемента ИЛИ подклю- чены к выходам первого и второго счетчиков, выход - к счетному входу третьего три-ггера и одному входу пер вого элемента И, второй выход блока 20 inputs of the first element OR are connected to the outputs of the first and second counters, output - to the counting input of the third three-timer and one input of the first element I, the second output of the unit

25 {синхронизации соединен с установоч:ным входом третьего триггера, выхсш которого подключен к первому входу второго элгачента И, выходы первого и второго триггеров соединены со 25 {synchronization is connected to the setup input of the third trigger, the output of which is connected to the first input of the second terminal And, the outputs of the first and second triggers are connected to

30 входами второго элемента ИЛИ, выход30 inputs of the second element OR output

которого подключен к одному из вхо ов третьего элемента 11 и -счетному входу четвертого триггера, установочный вход которого соединен с первым выходом блока синхронизации, ыход.- со вторым входом второго элемента Н, третий вход КОТОРОГО одключен к шине.сигнгша Визиры, ругие входы первого и третьего элеентов Н соединены с шиной сигнала Маска, выходы первого/ второго и третьего элементов И подключены ко входам третьего элемента ИЛИ, выход которого соединен с модул тором ЭЛТ.which is connected to one of the inputs of the third element 11 and the counting input of the fourth trigger, the installation input of which is connected to the first output of the synchronization unit, output.- to the second input of the second element H, the third input is connected to the Vizira bus, other inputs of the first and the third elements H are connected to the signal bus Mask, the outputs of the first / second and third elements AND are connected to the inputs of the third OR element, the output of which is connected to a CRT modulator.

На чертеже дана блок-схема устройства .The drawing is a block diagram of the device.

Устройство содержит блок 1 синхронизации , делитель 2 частоты, коммутаторы З-б, реверсивные счетчики 7-10, счетчики 11-14, триггеры 15 и 16, элементы ИЛИ 17 и 18, триггеры 19 и 20, элементы И 21-23, элемент ИЛИ 24, а также на чертеже приведены шины Маска - установки режима маскировки экрана и Визиры установки режима свечени визиров.The device contains a synchronization unit 1, a divider 2 frequencies, switches B, reversible counters 7-10, counters 11-14, triggers 15 and 16, elements OR 17 and 18, triggers 19 and 20, elements AND 21-23, element OR 24, as well as the drawing shows the Mask tires - the settings for the screen masking mode and the Vizira set to illuminate the sight mode.

Перед началом отображени коды координат записываютс в реверсивные счетчики 7 (Y)., 8 (Y,)-, 9 (Х), 10 (Х ) . Разр дные выходы реверсивных счетчиков 7 и 8, в которых записываютс коды свет щихс точек в каждой строке, подсоедин ютс к соответствующим разр дным входам вычитающих счетчиков 11 и 12 соответственно , а разр дные выходы счётчиков 9 и 10, в которых записаны номера свет щихс строк в кадре - к соответствующим разф дным входам счетчиков 13 и 14 соответственно. Разр дность счетчиков 7, 8 и 11, 12 п, така , чтоBefore the start of the display, the coordinate codes are recorded in reversible counters 7 (Y)., 8 (Y,) -, 9 (X), 10 (X). The bit outputs of the reversible counters 7 and 8, in which the codes of the luminous points in each row are recorded, are connected to the corresponding bit inputs of the subtractive counters 11 and 12, respectively, and the bit outputs of the counters 9 and 10, in which the numbers of the luminous lines are written in the frame, to the corresponding inputs of counters 13 and 14, respectively. The bit width of the counters is 7, 8 and 11, 12 n, such that

,,,,

где N - количество выводимых точекwhere N is the number of output points

в строке.in line.

Разр дность счетчиков 9, 10 и 13, 14 п беретс такой, чтоThe counter width of 9, 10 and 13, 14 n is taken such that

. 7/ м,. 7 / m

где N - количество строк в кадре.where N is the number of lines in the frame.

Выходы счетчиков 11 и 12 объедин ютс с помощью элемента ИЛИ 17, а выходы переполнени счеа чиков 13 и 14 подключены к счетным входам триггё эов 15 и 16.The outputs of counters 11 and 12 are combined using the OR element 17, and the overflow outputs of the counters 13 and 14 are connected to the counting inputs of the trigger 15 and 16.

С помощью коммутаторов 3-6 оператор имеет возможность перемещать визиры или.крад маски по желанию вверх, вниз дл горизонтальных визиров и краев маски и влево, вправо дл вертикальных визиров и краев маски.Using switches 3-6, the operator has the ability to move the sights or the thief of the mask at will up and down for horizontal sights and edges of the mask and left and right for vertical sights and edges of the mask.

Коэффициент делени делител 2 частоты выбираетс таким, чтобы дл оператора скорость продвижени визиров (краев маски) была удобной дл управлени .The division factor of the divider 2 frequency is chosen so that for the operator the rate of advancement of the sights (edges of the mask) is convenient for control.

Единичные .выходы триггеров 15 и 16 объедин ютс с помощью элЬмента ИЛИ 18. С выходов элементов ИЛИ 17 и 18 сигналы подаютс на счетный вход триггера 19, к первому входу элемента И 21, счетному входу триггера 20 и-к первому входу элемента И 22 соответственно. Сигн.алы единичных выходов триггеров 19 и 20 подают с на первые, и вторые входы элемен0 та И 23, а на третий вход которого подаетс сигнал управлени режима Маска, На входы элементов И 21 и 22 подаетс сигнал управлени ре- , жимом Визир, выходы всех трех эле5 ментов И 21-23 объедин ютс с помощью элемента ИЛИ 24, выход которого соединен с модул тором ЭЛТ,The single trigger outputs 15 and 16 are combined using the OR element 18. From the outputs of the OR elements 17 and 18, the signals are fed to the counting input of the trigger 19, to the first input of the AND 21 element, the counting input of the trigger 22, and . The signals of the unit outputs of the flip-flops 19 and 20 are supplied to the first and second inputs of the And 23 element, and the third input of which is supplied with the Mask mode control signal. The inputs of the And 21 and 22 elements are supplied with the control signal, press the Viewer, outputs all three elements AND 21-23 are combined with the element OR 24, the output of which is connected to a CRT modulator,

Устройство работает следующим образом .The device works as follows.

0 Режим, свечени визиров. В этом случае на шину сигналов Визир подаетс высокий потенциал и занос тс координаты-визиров (два вертикальных и два горизонтальных) в ревер5 сивные счетчики 7 (Y ) , 8 (Y2) и 9 (X, ) , 10 (X а.) и затем синхронно с работой ЭЛТ происходит перепись ,строчным импульсом кодов, наход щихс в счетчиках 7 и 8, в счетчики0 Mode, glow sights. In this case, a high potential is fed to the signal bus of the Vlizor and the sight coordinates (two vertical and two horizontal) are fed into the reverse meters 7 (Y), 8 (Y2) and 9 (X,), 10 (X a.) And then, synchronously with the operation of a CRT, a census takes place, with a line pulse of codes located in counters 7 and 8, in counters

0 11 и 12, а кадровым импульсом кодов, наход щихс в счетчиках 9 и 10, в счетчики 13 и 14. 0 11 and 12, and the personnel impulse of the codes in counters 9 and 10, in counters 13 and 14.

Дл простоты разберем работу устройства в режиме дл одного вертиЗэ кального визира. За врем двилсёни луча каждой строки импульсы, .соответствующие каждой точке в строке, проход т на счетный вход счетчика 11 и происходит вычитание из содержимогоFor simplicity, let us analyze the operation of the device in the mode for a single vertical scanner. During the time the beam has moved every line, the pulses corresponding to each point in the line pass to the counting input of counter 11 and are subtracted from the contents

0 счетчика 11. Когда на вход счетчика 11 пройдет сТ9лько импульсов, сколько было записано в счетчике 7, счетчик 11 окажетс в нулевом положении, а это значит, что следующий импульс0 counter 11. When the input of counter 11 passes through T9 of pulses, how many were recorded in counter 7, counter 11 will turn out to be in the zero position, which means that the next pulse

пройдет на выход переполнени счетчика 11 и через элемент ИЛИ 17, элемент И 21 (так как на шине сигнала Визир высокий потенциал) и элемент ИЛИ 24 -на модул тор ЭЛТ и соответствующа точка будет светитьс will pass to the output of the overflow of counter 11 and through the element OR 17, the element AND 21 (since the high potential on the signal bus) and the element OR 24 are on the CRT modulator and the corresponding point will be lit

на ЭЛТ, следующий строчный импульс содержимого счетчика 7 оп ть перепишет в счетчик 11 и импульсы, соответствующие точкам -при движении .луча в пр мом направлении, пройд on a CRT, the next line pulse of the contents of counter 7 will again be overwritten into counter 11 and the pulses corresponding to the points — as the beam travels in the forward direction,

на счетный вход счетчика 11, оп ть сброс т его в положение Нуль, и следующий импульс оп ть пройдет на модул тор ЭЛТ. Это произойдет в каждой строке только один раз, так какto the counting input of counter 11, again reset it to the Zero position, and the next pulse will again pass to the CRT modulator. This will occur in each line only once, since

после переполнени на счетчик 11 в каждом его разр де окажетс единица и дальнейшие импульсы не успеют сбросить счетчик до нул по условию 7/ М Аналогично будет работатьafter overflow, unit 11 will appear in each of its bits and further impulses will not have time to reset the counter to zero by condition 7 / M Similarly, it will work

Claims

and the channel of the second vertical viewer CONSISTING from the reversible counter 8 and the subtracting counter 12.. Similarly, the part that controls the glow of horizontal scopes will work similarly only with the difference that there the pulse pulses of the contained counters 9 and 10 into counters 13 and 14 are frame pulses, and the filling pulses of counters 13 and 14 will be horizontal pulses and the moment when the contents of counter 13 drops to zero, the next horizontal pulse will pass to the output of the counter .13 and to the counting input of the trigger 15, which will push the trigger to the Unit position with the falling edge. By this time, the horizontal pulse does not already terminate at the input of the installation. Stable operation of the trigger 15 is also conditioned by the fact that in the counter 13 from the input to the output the overflow pulse is delayed by a certain time, which is determined from the particular received circuit. A single output signal for trigger 15 through elements OR 18, AND 22 and OR 24 will be passed on to the CRT modulator and the entire line will be displayed until the next line pulse resets three ger 15 to the Zero position. This process is repeated in every round of space. The necessity of introducing the trigger 16 is due to the fact that the lower-order impulse terminates before the screen starts to glow. The trigger 15 makes it possible to receive a signal to its single output between small pulses, the corresponding line of which should be highlighted. The second channel of horizontal sightings works in a similar way. The states of the flip-flops 19 and 20 do not affect the operation of the circuit in this mode, since the And 2 element where signals from the flip-flop outputs are given is locked due to the absence of a signal on the Mask bus. Consider the operation of the device when moving the coordinate axes on the screen of a CRT. Suppose it was necessary to move the Y axis to the right on the screen. In this case, the pulses from the output of the splitter 2 frequency are supplied by the switch 3 to the summing input of the reversible counter 7, i.e. The hold of counter 7 increases by g the number of pulses in a series. It is obvious that the overflow of the subtracting counter 11 is delayed by the time corresponding to the number of pulses, the number of which passed to the summing input of the counter 7, i.e. viewfinder Y on the whits 8 points to the right relative to the previous state ... , The need to move the y axis, to the left, the pulses from the output of divider 2 by means of switch 3 are fed to the subtractive bus of the reversible counter 7, i.e. the contents of counter 7 are reduced by the number of pulses in the series and the overflow pulse is, respectively, earlier. The operation of the device will be similar to the work with iitepeNiemeHHH Y axis to the right. The rest of the sight channels will work in the same way. Mask mode In this mode, a high potential is applied to the bus. The mask will receive the resolution element And 23, and elements 21 and 22 are locked, to obtain a rectangular mask, two channels are required both horizontally for the horizontal edges of the mask and vertically for the vertical edges. masks. Separate channels work similarly to the luminescence mode of the sights, with the only difference that the first overflow pulse received from a pair of channels horizontally, passed through the OR element 17 to the counting input of the trigger 19., will set it to the Unit position. The signal from the single trigger output, passed through the element 23, when the second input from the single output of the trigger 20 is also given permission (the third input is enabled because there is a Mask mode) and the signal passes through the 1sh 24 element to the modulator The CRT will start to glow the corresponding part of the line on the screen, and the second overflow pulse from the other channel half-channel will shift the trigger to the Zero position, and it does not matter from which channel the impulse passes before. At this point, the screen will stop glowing the single output of the trigger signal will not be, and the element U 2-3 will close, i.e. will be highlighted in each row. that part of the screen that corresponds to the arrival time of the first overflow pulse of counters 11 and 12 and the difference between the contents of the reversible counters 7 and 8.. The device works almost similarly and vertically. . The first pulse, which appeared at the overflow exit of counters 13 and 4, and passed through the element OR 18, will set one of the triggers 15 and 16 to one state, and the signal from this output will set the trigger 20 to the Units position, and the second signal, which Appearing at the output of the reading counter, having passed through the OR element 16, will return the status of the trigger 20 to the Zero position. During the time between the arrival of the first and second pulses at the counting input of the trigger 20, the element 23 has a resolution at the second input and when the screen luminous resolution signal appears at the output of the trigger 19 in a row of the output signal of the element 23, the element OR 24 causes the CRT to glow at appropriate intervals . Promotion of the edges of the mask is similar to the promotion of the sightings. The line pulse after each line sets the trigger 19 to zero, and the frame pulse after each frame is the trigger 20. This is because if the pulses in the channels, both vertical and horizontal, coincide, then one or more frame halves . The proposed device makes it possible to have on the screen a device displaying information on two sights vertically and horizontally that can be moved in any direction or a rectangular mask, which greatly facilitates the work of the operator and makes the device more comfortable to operate. Apparatus of the Invention A device for the formation of mutually perpendicular lines on a screen of a non-cathode ray tube (a CRT containing a synchronization unit, the first output of which is connected to a frequency divider connected to switches; connected to reversible counter inputs O, whose outputs are connected to first inputs the first, second, third and fourth counters, respectively; the outputs of the third and fourth counters are connected to the counting inputs of the first and second triggers, respectively; the first output of the synchronization block connected to the summing inputs of the third and fourth counters, the second output to the summing inputs of the first and second counters, the subtractive inputs of the third and fourth counters and the installation inputs of the first and second triggers, the third output of the synchronization unit is connected to the subtracting inputs of the first and second counters, different that, in order to expand the field of application of the device by masking part of the screen, three AND elements are introduced, the third and fourth triggers and three OR elements, the inputs of the first OR element are connected to the outputs of the first and second counters, the output to the counting input of the third trigger. and one of the inputs of the first element And the second output of the synchronization unit is connected to the installation input of the third trigger, the output of which is connected to the first input of the second element And, the outputs of the first and second triggers are connected to the inputs of the second element OR, the output of which is connected to one of the inputs of the third element And the counting input of the fourth trigger, the setup input of which is connected to the first output of the synchronization unit, the output to the second input of the second element I, the third input of which is connected to the Vizira signal bus, The inputs of the first and third elements And are connected to the signal bus Mask, the outputs of the first, second and third elements And are connected to the input of the third OR element, the output of which is connected to a CRT modulator, Information sources taken into account in examination 1, USSR Author's Certificate No. 529469, Cl, G06 K 1.5 / 20, 1978. 2, USSR Author's Certificate for Application No. 3007238 / 18-24, Cl. Q09G 1/08, 1980 (prototype).