SU978133A1

SU978133A1 - Data input device

Info

Publication number: SU978133A1
Application number: SU813273413A
Authority: SU
Inventors: Владимир Юрьевич Десятун; Владимир Антонович Кротевич; Владимир Михайлович Морозов
Original assignee: Киевское Проектно-Конструкторское Бюро Автоматизированных Систем Управления
Priority date: 1981-04-14
Filing date: 1981-04-14
Publication date: 1982-11-30

Description

Изобретение относитс к вычислительной технике и может быть использовано , например,дл набора и передачи информации в ЭВМ и другие цифровые устройства.The invention relates to computing and can be used, for example, to type and transmit information to computers and other digital devices.

Известны устройства формировани двоичного числа дл ввода в вычислительную машину, содержащие клавиатуру , шифратор, элемент ИЛИ, формирователь одиночных импульсов 1.Binary number generation devices are known for input into a computer, comprising a keyboard, an encoder, an OR element, a single pulse shaper 1.

Недостатком этого устройства вл етс сложность в отношении конструкции противодребезговых схем.A disadvantage of this device is the complexity with respect to the design of the anti-rebound circuits.

Наиболее близким по технической сущности к предлагаемому вл етс устройство дл ввода информации, содержащее клавиатуру, св занную с входами шифратора, информационные выходы которого подключены к информационным входам блока сдвиговых регистров, формирователь одиночных импульсов, выход которого соединен с управл ющим входом блока сдвиговых регистров, а вход с первым выходом триггера, второй выход которого через схему И соединен с входом счетчика шифратора, а первый установочный вход подключен к выходам клавиатуры (2.The closest in technical essence to the present invention is an information input device comprising a keyboard associated with the encoder inputs, the information outputs of which are connected to the information inputs of the shift register unit, a single pulse shaper, the output of which is connected to the control input of the shift register unit, and input with the first output of the trigger, the second output of which is connected through the AND circuit to the input of the counter of the encoder, and the first installation input is connected to the keyboard outputs (2.

Недостатком данного устройства вл етс сложность формировани потенциала , снимающего запрет с нулевого входа триггера.The disadvantage of this device is the difficulty of forming a potential that removes the prohibition from the zero input of the trigger.

Цель изобретени - упрощение устройства .The purpose of the invention is to simplify the device.

Поставленна цель достигаетс тем, что в устройство дл ввода информации , содержащее последовательно соединенные триггер, формирователь одиночных импульсов и блок сдвиговых регистров , выходы которого вл ютс выходами устройства, а входы соединен; с выходами шифратора, входы которого соединены с выходами клавиатуры, выход которой соединен с первым входом триггера, введен элемент И, первый вход которого вл етс входом устройства , второй вход соединен с вторым выходом триггера, а выход соединен с входом шифратора, второй вход триггера соединен с выходом шифратора.This goal is achieved by the fact that in a device for inputting information, containing sequentially connected trigger, a single pulse shaper and a block of shift registers, the outputs of which are the outputs of the device and the inputs are connected; with the outputs of the encoder, the inputs of which are connected to the outputs of the keyboard, the output of which is connected to the first trigger input, the input element is entered, the first input of which is the device input, the second input is connected to the second trigger output, and the output is connected to the encoder input, the second trigger input is connected with the output of the encoder.

На чертеже приведена структурна схема предлагаемого Устройства дли ввода информации.The drawing shows a block diagram of the proposed device for the length of the input information.

Claims

The device contains a keyboard 1,; encoder 2, consisting of multiplexer-3 and binary counter 4, trigger 5, shaper of single pulses, element and 7, and block 8 of shift registers. The keyboard l is a keyboard field of application contacts, each of which corresponds to a specific digit, with normally open contacts connected to the corresponding input of multiplexer 3, and normally closed contacts are connected in series with each other, on the one hand this circuit is connected to ground potential, ac other - to the first installation input of the trigger 5.. In the INITIAL state, the first installation input of trigger 5 through the normally closed contacts of the keyboard 1 is applied to the ground potential, keeping the trigger 5 in the state O, while the latter through the circuit And 7 allows the clock to pass to the counter 4. The number is dialed by successive keystrokes keyboard 1 starting from the higher bit. When pressing any of the keys of the keyboard 1, the holding potential is removed from the zero input of the trigger 5, and the device is ready to receive information. When the normally open contacts are closed, the earth potential is applied to the inputs of the multiplexer 3. Counter 4 polls each input of multiplexer 3, while the zero input signal through multiplexer 3 sets the trigger 5 to one state, which by the signal from the inverse output through the AND 7 circuit stops the counter 4, and direct signal of the output output starts the single pulse generator. Counter 4 stops at the position corresponding to the input number of the multiplexer to which the zero potential was applied, which corresponds to the binary code of the input number. Writing information into the 8 shift register unit is performed by a signal from the driver of single pulses. After releasing the key, the trigger 5 is set to the zero state; it enables the start of the counter 4 through the AND 7 circuit via a signal from the inverse output. The circuit is ready to receive new information. When pressed again. The key of the digit code / corresponding to this key comes from the information outputs of the encoder 2 to the input of the 8 shift register unit, and when the pulse arrives from the shaper b, the higher bit, the input number is shifted, and the next bit is written in its place. the invention makes it possible to increase the reliability of the device and free it from the operations of monitoring and correcting information. Apparatus for inputting information, comprising: successively connecting a Hbie trigger, a single pulse shaper, and a block of shift registers whose outputs are the outputs of the device, and the inputs are connected to the outputs of the encoder, the inputs of which are connected to the outputs of the keyboard, the output of which is connected to the first input of the trigger, characterized in that, in order to increase the reliability of the device, an AND element is introduced into it, the first input of which is the device input, the second input is connected to the second trigger input, and the output connected to the input of the encoder, the second input of the trigger is connected to the output of the encoder. Sources of information taken into account in the examination 1. The author's certificate of the USSR 352269, cl. G On Ra / 02, 1970.

2. Authors certificate of the USSR 586451, cl. G 06 F3 / 02, 1975, (prototype).