SU1262474A1

SU1262474A1 - Information input device

Info

Publication number: SU1262474A1
Application number: SU853879727A
Authority: SU
Inventors: Зоя Андреевна Бабиновская; Владимир Алексеевич Лесной
Original assignee: Предприятие П/Я В-2969
Priority date: 1985-04-08
Filing date: 1985-04-08
Publication date: 1986-10-07

Abstract

Изобретение относитс к автоматике и вычислительной технике. Цель изобретени - повышение помехозаащщенности устройства. Устройство содержит первую и вторую грулпы источников излучени , первую и вторую группы приемников излучени , первую и вторую группы усилителей, первый, второй, третий и четвертый дешифраторы , первый и второй мультиплексоры, генератор импульсов, первьш, второй, третий и четвертый счетчики, первый и второй элементы И, nepsbui и второй одновибраторы, триггер, первый, второй и третий регистры. Источники и приемники излучени размещены по периметру координатной поверхности, а сигнальные лучи, испускаем1 1е источниками излучени , образуют координатную сетку и воспринимаютс соответствующими приемниками излучени . Узлы этой координатной сетки представл ют точки ввода информации на координатной поверхности. Третьим и чет1 ертьгм счетчиками подсчитьшаетс количество импульсов на выходах мультиплексоров. При наличии одного импульса за весь цикл опроса координатной сетки разре &amp; шаютс запись кодов первого и второ (Л го счетчиков в третий регистр и выдача их на выход устройства. При наличии более одного импульса за цикл опроса вьщаетс сигнал запрещени записи в третий регистр и выдачи ложной информации на выход устройства. 1 ил. ю а 1чЭ С vi i4This invention relates to automation and computing. The purpose of the invention is to increase the noise immunity of the device. The device contains the first and second sources of radiation, the first and second groups of radiation receivers, the first and second groups of amplifiers, the first, second, third and fourth decoders, the first and second multiplexers, pulse generator, first, second, third and fourth counters, first and second the second elements are And, nepsbui and the second one-shot, trigger, first, second and third registers. Sources and receivers of radiation are placed around the perimeter of the coordinate surface, and the signal beams, emitted by radiation sources, form a coordinate grid and are perceived by corresponding radiation receivers. The nodes of this grid represent information entry points on the coordinate surface. The third and even third counters calculate the number of pulses at the outputs of the multiplexers. If there is one pulse for the whole cycle of the interrogation of the coordinate grid of the cut & The first and second codes are written to the third register and output to the device output. If there is more than one pulse during the interrogation cycle, the signal to prohibit writing to the third register and giving false information to the device output occurs. 1 Il. vi i4

Description

Изобретение относится к автоматике и вычислительной технике и может быть использовано для связи оператора с электронной вычислительной машиной, в частности в устройствах вво- : да информации в ЭВМ.The invention relates to automation and computer technology and can be used to communicate with the operator of an electronic computer, in particular in input devices: yes information in computers.

Целью изобретения является повышение помехозащищенности устройства. 1The aim of the invention is to increase the noise immunity of the device. 1

На чертеже приведена схема предлагаемого устройства.The drawing shows a diagram of the proposed device.

Устройство содержит первую 1 и вторую 2 группы источников света, первую 3 и вторую 4 группы приемни- 1 ков света, первую 5 и вторую 6 группы усилителей, первый 7, второй 8, третий 9 и четвертьм 10 дешифраторы, первый 11 и второй 12 мультиплексоры, генератор 13 импульсов, пер- ²вый 14, второй 15, третий 16 и четвертый 17 счетчики, первый 18 и второй 19 элементы И, первый 20 и второй 21 одновибраторы, триггер 22, первый 23, второй 24 и третий 25 ре- ²гистры.The device contains the first 1 and second 2 groups of light sources, the first 3 and second 4 groups of receivers 1 light, the first 5 and second 6 groups of amplifiers, the first 7, second 8, third 9 and quarter 10 decoders, the first 11 and second 12 multiplexers the pulse generator 13, per- ² vy 14, second 15, third 16 and fourth counters 17, 18, first and second aND gates 19, 20, first and second monostable multivibrator 21, a trigger 22, a first 23, second 24 and third 25 PE ² histres.

Источники и приемники света размещены по периметру координатной поверхности, а сигнальные лучи, испускаемые источниками света, образуют 3 координатную сетку и воспринимаются соответствующими приемниками света. Узлы этой координатной сетки представляют точки ввода информации на координатной поверхности. 3Light sources and receivers are placed around the perimeter of the coordinate surface, and the signal rays emitted by the light sources form a 3 coordinate grid and are perceived by the respective light receivers. The nodes of this coordinate grid represent the input points of information on the coordinate surface. 3

Устройство работает следующим образом.The device operates as follows.

В исходном состоянии в случае отсутствия ввода информации импульсы с генератора 13 поступают на входы 4 счетчиков 14 и 15, которые начинают отсчет импульсов. Сигналы счетчиков дешифруются дешифраторами 7 и 8, которые запускают развертку источников 1 и 2 света, вызывая их свечение. 4 Сигнальные лучи, испускаемые источниками 1 и 2 света, воспринимаются приемниками 3 и 4 света и усиливаются по мощности усилителями 5 и 6. На выходах мультиплексоров 11 и 12, счет- 5 чиков 16 и 17, дешифраторов 9 и 10, элемента И 18 и триггера 22 присутствует сигнал 0.In the initial state, in the absence of input of information, pulses from the generator 13 are fed to the inputs of 4 counters 14 and 15, which begin to count the pulses. The signals of the counters are decrypted by decoders 7 and 8, which start the sweep of light sources 1 and 2, causing them to glow. 4 Signal rays emitted by light sources 1 and 2 are received by light receivers 3 and 4 and amplified by power amplifiers 5 and 6. At the outputs of multiplexers 11 and 12, counters 5 are 16 and 17, decoders 9 and 10, element 18 and trigger 22 there is a signal 0.

При отсутствии ввода информации первый 14 и второй 15 счетчики цикли- ₅чески переполняются и начинается новый цикл развертки источников 1 и 2 света. Для ввода кода какой-либо бук вы (или ее координаты), расположенной внутри периметра координатной поверхности, на которой находятся .источники 1 и 3 и приемники 3 и 4 света, указательный элемент·(ручка, указка, палец) устанавливается в узел координатной сетки, образуемой пересечением сигнальных лучей, испускаемых источниками 1 и 2 света. При этом в определенный момент времени сигнальные лучи, испускаемые источником света первой группы и источником света второй группы, за счет их перекрытия указательным элементом в узле коор5 динатной сетки, не поступают на два соответствующих приемника света первой и второй групп. На соответствующих входах мультиплексоров 11 и.12 появляется сигнал 0. На выходах мультиплексоров появляется сигнал 1, поступающий на входы счетчиков 16 и 17.If there is no input of information, the first 14 and second 15 counters are cyclically ₅ overflowing and a new cycle of scanning of light sources 1 and 2 begins. To enter a code of any letter (or its coordinates) located inside the perimeter of the coordinate surface on which there are sources 1 and 3 and light receivers 3 and 4, the pointing element · (pen, pointer, finger) is installed in the coordinate grid node formed by the intersection of signal beams emitted by light sources 1 and 2. Moreover, at a certain point in time, the signal beams emitted by the light source of the first group and the light source of the second group, due to their overlapping by the index element in the coordinate grid node 5, do not arrive at two corresponding light receivers of the first and second groups. At the corresponding inputs of the multiplexers 11 and 12, signal 0 appears. At the outputs of the multiplexers, signal 1 appears, arriving at the inputs of the counters 16 and 17.

Сигналы счетчиков 16 и 17 дешифрируются дешифраторами 9 и 10, сигналы с которых подаются на входы Разрешение записи первого 23 и второго 24 регистров, при этом на информационные входы регистров поступа- , ет код с выходов счетчиков 14 и 15, являющийся кодом положения данной буквы.The signals of the counters 16 and 17 are decrypted by the decoders 9 and 10, the signals from which are fed to the recording permission inputs of the first 23 and second 24 registers, while the information from the outputs of the registers receives a code from the outputs of the counters 14 and 15, which is the position code of this letter.

Счетчики 14 и 15 продолжают считать импульсы до окончания цикла. В том случае, если указательный элемент был установлен в один узел координатной сетки, счетчики 16 и 17 зафиксируют по одному импульсу, на выходах дешифраторов 9 и 10 установятся сигналы 1, поступающие на входы элемента И 18, на выходе которого устанавливается 1. Нулевое состояние счетчиков 14 и 15 фиксируется одновибраторами 20 и 21, которые вырабатывают при этом кратковременный импульс, поступающий через элемент И 19 на синхронизирующий вход триггера 22, выходной сигнал которого разрешает вадачу кода из регистра 25 на выход устройства. Одновременно импульсы с одновибраторов 20 и 21 устанавливают в 0 счетчики 16 и 17. При появлении внешних помех (например, падение какого-либо предмета на координатную плоскость или одновременное перекрытие нескольких узлов координатной сетки).и при появлении первого импульса в счетчиках 16 и 17 происходит запись состояния счетчиков 14 и 15 в регистры 23 и 24, вторые импульсы с выходов мультиплексоров 11 и 12 запрещают выдачу информации из регистра 25. Счетчики 14 и 15 считают до окончания цикла . По. окончании цикла счетчики 16 и 17 импульсами одновибраторов 20 и 21 устанавливаются в ”0.Counters 14 and 15 continue to count pulses until the end of the cycle. In that case, if the pointing element was installed in one node of the coordinate grid, the counters 16 and 17 will be fixed one pulse at a time, the signals 1 will be installed at the outputs of the decoders 9 and 10, arriving at the inputs of the element And 18, the output of which is set to 1. Zero state of the counters 14 and 15 are fixed by single vibrators 20 and 21, which produce a short-term pulse, which passes through the And 19 element to the synchronizing input of trigger 22, the output signal of which allows the code from register 25 to be output from the device. At the same time, pulses from single vibrators 20 and 21 are set to 0 counters 16 and 17. When external noise (for example, the fall of an object on the coordinate plane or the simultaneous overlap of several nodes of the coordinate grid) .and when the first pulse appears in the counters 16 and 17 recording the status of counters 14 and 15 in registers 23 and 24, the second pulses from the outputs of multiplexers 11 and 12 prohibit the output of information from register 25. Counters 14 and 15 are counted until the end of the cycle. By. at the end of the cycle, the counters 16 and 17 by the pulses of the single vibrators 20 and 21 are set to ”0.

Claims

The invention relates to automation and computer technology and can be used for operator s communication with an electronic computer, in particular, in devices for inputting information into a computer. The aim of the invention is to improve the noise immunity of the device. The drawing shows a diagram of the proposed device. The device contains the first I and second 2 groups of light sources, the first 3 and second 4 groups of light receivers, the first 5 and second 6 groups of amplifiers, the first 7, second 8, third 9 and quarter 10 decoders first 11 and second 12 multiplexers, 13 pulse generator The first 14, second 15, third 16 and fourth 17 counters, first 18 and second 19 elements AND, first 20 and second 21 one-shot, trigger 22, first 23, second 24 and third 25 registers. Sources and receivers of light are placed around the perimeter of the coordinate surface, and the signal beams emitted by the light sources form a coordinate grid and are perceived by the corresponding light receivers. The nodes of this grid represent information entry points on the coordinate surface. The device works as follows. In the initial state, in the absence of information input, the pulses from the generator 13 are fed to the inputs of counters 14 and 15, which start counting the pulses. The counter signals are decrypted by decoders 7 and 8, which trigger the sweep of sources 1 and 2 of the light, causing them to glow. The signal beams emitted by sources 1 and 2 of the light are perceived by receivers 3 and 4 of the light and amplified by the power of amplifiers 5 and 6. On you multiplexers 11 and 12, counters 16 and 17, decoders 9 and 10, element 18 and flip-flop 22, the signal O is present. In the absence of information input, the first 14 and second 15 counters cyclically overflow and a new scan cycle of sources 1 and 2 begins Sveta. The dp of entering a code is any beech 74J you (or its coordinates) located inside the perimeter of the coordinate surface on which sources 1 and 3 and receivers 3 and 4 are located, the pointing element (pen, pointer, finger) is placed in the coordinate box grids formed by the intersection of the signal beams emitted by sources 1 and 2 of light. At the same time, at a certain point in time, the signal beams emitted by the light source of the first group and the light source of the second group, due to their overlapping by the index element in the grid node, do not flow to the two corresponding light receivers of the first and second groups. At the corresponding inputs of multiplexers 11 and 12, signal O appears. At the outputs of multiplexers, signal 1 appears at the inputs of counters 16 and 17. The signals of counters 16 and 17 are decoded by decoders 9 and 10, the signals from which are fed to the recording resolution inputs of the first 23 and the second 24 registers, while the information inputs of the registers are supplied with the code from the outputs of counters 14 and 15, which is the position code of this letter. Counters 14 and 15 continue to count pulses until the end of the cycle. In the event that the pointing element was installed in one node of the grid, the counters 16 and 17 would record one pulse, the outputs of the decoders 9 and 10 set the signals 1 to the inputs of the element And 18, the output of which is set to 1. Zero state The counters 14 and 15 are fixed by one-shot 20 and 21, which at the same time produce a short pulse arriving through AND 19 to the clock input of the trigger 22, the output of which allows the code from register 25 to the output of the device. Simultaneously, the pulses from the single vibrators 20 and 21 are installed in O counters 16 and 17. When external noise appears (for example, a drop of an object on the coordinate plane or the simultaneous overlapping of several grid nodes) and the appearance of the first pulse in the counters 16 17 The state 312 of counters 14 and 15 is recorded in registers 23 and 24; the second pulses from the outputs of multiplexers II and 12 prohibit the reading of information from register 25. Counters 14 and 15 count until the end of the cycle. By. the end of the cycle, the counters 16 and 17 of the pulses of the one-shot 20 and 21 are installed in the O. , the first and second decoders, the first and second counters, the pulse generator, the first one-shot and the first And element, the light sources of the first and second groups are optically connected to the light receivers of the first and second groups, respectively, the first and second decryptors are connected to the inputs of the light sources of the first and second groups, respectively; the outputs of the light receivers are connected to the inputs of the amplifiers of the first and second groups, respectively; the outputs of the amplifiers of the first and second groups are connected to the inputs of the first group of the first and second multiplexers, respectively; connected to the inputs of the first and second meters, the outputs of which j

connected to the inputs of the first and second decoders and the inputs of the second group of the first and second multiplexers, respectively, the output of the older

In principle, the outputs of the first and second registers are connected to the inputs of the third register group, the outputs of which are; are the outputs of the device. 4 bits of the First counter are connected to the input of the first one-shot, which is different from the fact that, in order to increase the interference of the C-scale, the third and fourth counters are entered, the third and fourth decoders, from the first to the third registers, trigger, The second one-shot and second element And the outputs of the first and second multiplexes are connected to the first input and the third and fourth counters, respectively, whose outputs are connected to the inputs of the third and fourth decoders, respectively, the output of the third decoder is connected to the first input the first element MeirTa And and the input of the first register, the output of the fourth decoder connect with the second input of the first element And the input of the second register, the output of the first element And connected to the first input of the trigger, the output of which is connected to the input of the third register, the output of the senior bit of the second counter connected with the input of the second one-shot, the output of which is connected to the second inputs of the fourth counter and the second element And, the output of the first one-shot is connected to the second input of the third counter and the first input of the second element H, the output otorrhea connected to the second input of the flip-flop, the outputs of the first and second counters are connected with vxodamIi group of first and second registers sootvets