SU989553A1

SU989553A1 - Information input device

Info

Publication number: SU989553A1
Application number: SU802920828A
Authority: SU
Inventors: Марк Анатольевич Гребенников
Priority date: 1980-05-06
Filing date: 1980-05-06
Publication date: 1983-01-15

Description

(5) УСТРОЙСТВО ДЛЯ ВВОДА ИНФОРМАЦИИ(5) DEVICE FOR INPUT OF INFORMATION

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Изобретение относитс к вычислительной технике,в частности к устройствам клавишного ввода информации,работающим в составе фактурно-бухгал-; терских машин и регистраторов информации дл автоматизированных систем управлени .The invention relates to computing, in particular, to key input devices for information, operating as part of invoicing; Terek machines and information loggers for automated control systems.

Известно устройство дл ввода информации , содержащее два счетчика, матричную схему, схему выборки,, логические элементы . 1 J.A device for inputting information is known, which contains two counters, a matrix circuit, a sampling circuit, logic elements. 1 J.

Недостатком этого устройства вл етс его сложность.A disadvantage of this device is its complexity.

Наиболее близким к изобретению вл етс устройство, содержащее клавишное поле, генератор, счетчик, дешифратор , коммутатор, триггер, вентиль и элементы задержки, причем генератор , счетчик, дешифратор и коммутатор образуют схему последовательного опроса контактов клавишного пол , а триггер, вентиль и элемент задержки обеспечивают временное согласование работы контактов клавишного пол с устройством, принимающим информацию с клавиатуры 2 3.The closest to the invention is a device comprising a key field, a generator, a counter, a decoder, a switch, a trigger, a gate and delay elements, the generator, the counter, the decoder and the switch constituting a circuit for polling the contacts of a keyboard floor, provide temporary coordination of the contacts of the keyboard field with the device receiving information from the keyboard 2 3.

Однако это устройство характери- ; зуетс недостаточной надежностью.However, this device is characterized by; insufficient reliability.

Целью изобретени вл етс повышение надежности устройства.The aim of the invention is to increase the reliability of the device.

Поставленна цель достигаетс тем, что в устройстве, содержащем генератор импульсов, выход которого со10 единен с первым входом элемента И, выход которого соединен с входом счетчика, вЫход которого вл етс выходом устройства и соединен с входом дешифратора, выход которого соединен с входом клавиатуры,элемент за15 держки, выход которого соединен с первым входом триггера, выход которбго соединен с вторым входом элемента И, . выходы клавиатуры соединены с вторым The goal is achieved by the fact that in a device containing a pulse generator, the output of which is 10 is unified with the first input of the element I, the output of which is connected to the input of the counter, the output of which is the output of the device and connected to the input of the decoder, the output of 15 holders, the output of which is connected to the first input of the trigger, the output of which is connected to the second input of the element I,. keyboard outputs are connected to the second

20 входом триггера и с входом элемента задержки.20 trigger input and input delay element.

Claims

The drawing shows the structural scheme of ycTpoticTBa. The device contains the generator 1 pulses, the element And 2, the counter 3, the decoder 4, the keyboard 5, the trigger 6, the indicator 7, the first mode key 8, the first driver 9, the delay element 10, the second mode key 11, the second driver 12, the simulator press character keys 13 simulator press mode keys 14. The device works as follows. The pulses produced by the generator 1, through the element And 2, are fed to the input of the counter 3, which sequentially generates all the code combinations of the characters entered using the information input device. The decoder 4 converts the binary code received at its input from the output of the counter 3 into the position code. When pressing the key of the keyboard 5, the signal comes from the output of the decoder k through the combined outputs of the character keys to the input of the trigger 6, which triggers and locks the element AND 2, and therefore the flow of pulses produced by the pulse generator 1 to the counter 3 stops, causing it stop After stopping counter 3, the operator, using indicator 7, carries out a visual check of the correctness of the character input and, if it does not detect errors, presses the first mode key 8. In this case, the first driver 9 generates a signal from the output of which indicates that the device for entering information is ready for outputting the character code to an external device, arrives at the first input of the delay element 10. The signal from the output of the delay element) xqi 10 sets trigger 6 to the initial state, due to which element I 2 is unlocked and input to the counter of dream 3 and the pulses produced by the pulse generator 1 begin to flow. If the operator detects an error while entering a character, he presses the second mode key 11. This triggers the second generator 12, the signal from the output of which goes to the second input of the delay element 10. The signal from the output of the delay element 10 sets the trigger 6 to the initial state, whereupon the And 2 element is unlocked and begins to transmit pulses from the output of the pulse generator 1 to the counting input of counter 3. At the same time, the readiness signal for issuing a character code to an external device is not generated. Imitating pressing the keys of the keyboard 5 by shorting with a plug jumper of the corresponding jack of the simulator pressing the character keys 13, as well as simulating pressing the first mode key 8 by setting the jumper jumper into the corresponding jacks of the simulator pressing the mode keys 1, the operator can loop the correct or erroneous data symbol, not resort to soldering jumpers to the contacts of the corresponding keys. The use of the indicator, simulators to press the symbol and mode keys, as well as the first and second mode keys and the corresponding drivers, increases the reliability of the input information, as well as simplifies the process of checking the correctness of its operation. Apparatus for inputting information comprising a pulse generator, the output of which is connected to the first input of the element AND whose output is connected to the input of the counter, the output of which is the output of the device and connected to the input of the decoder, the output of which is connected to the input of the keyboard, the delay element, output which is connected to the first input of the trigger, the output of which is connected to the second input of the AND element, characterized in that, in order to increase the reliability of the device, the keyboard outputs are connected to the second input of the trigger ra and with the input of the delay element. Sources of information taken into account in the examination 1.Patent of France Vf, cl. G About F 3/02, publ. 197.

2. USSR author's certificate number 669350, cl. G About F .3 / 02 1978 (prototype).

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