SU658548A1

SU658548A1 - Arrangement for information input into electronic computer

Info

Publication number: SU658548A1
Application number: SU772512001A
Authority: SU
Inventors: Геннадий Яковлевич Астахов; Наталья Ивановна Астахова
Original assignee: Специальное Конструкторско-Технологическое Бюро Управляющих Вычислительных Машин
Priority date: 1977-07-27
Filing date: 1977-07-27
Publication date: 1979-04-25

Description

II

Изобретение относитс к области автоматики и вычислительной техники и предназначено дл ввода информации в электронные клавишные вычислительные машины.The invention relates to the field of automation and computer technology and is intended to enter information into electronic keyboard computers.

Известно устройство дл ввода информации , содержащее клавиатуру, кодирующую матрицу 1.A device for inputting information is known, comprising a keyboard encoding a matrix 1.

Недостатком этого устройства вл атс сложность кодирующей матрицы и низка надежность.A disadvantage of this device is autoclav complexity of the coding matrix and low reliability.

Наиболее близким техническим решением к данному изобретению вл етс устройство дл ввода информации, содержащее последовательно соединенные клавиатуру и шифратор, выходы которого в л ютс выходами устройства С 2 .The closest technical solution to the present invention is an information input device comprising a serially connected keyboard and an encoder, the outputs of which are in the outputs of the C 2 device.

Недостатком этого устройства вл етс низка надежность.A disadvantage of this device is low reliability.

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

Это достигаетс тем, что в известное устройство введены последовательно соединенные мультиплексор, счетчик и де-This is achieved in that a serially connected multiplexer, a counter and a de-

шифратор, выход которого подключен к выходу устройства, первые входы мультиплексора соединены с выходами шифратора , вторые входы - с входами устройства , один из входов которого подклю- чен к счетчику. .the encoder, the output of which is connected to the output of the device, the first inputs of the multiplexer are connected to the outputs of the encoder, the second inputs are connected to the inputs of the device, one of the inputs of which is connected to the counter. .

На чертеже представлена структурна схема устройства.The drawing shows a block diagram of the device.

Устройство содержит клавиатуру 1, шифратор 2, мультиплексор 3, счетчик 4 и дешифратор 5,The device contains a keyboard 1, an encoder 2, a multiplexer 3, a counter 4 and a decoder 5,

Устройство работает следующим образом .The device works as follows.

Двукратное нажатие клавиши зап той в клавиатуре 1 кодируетс как признак Pressing the key twice in keyboard 1 is encoded as a sign

Claims

5 input comma position. The numeric keys of the device are used both for entering information and for entering the position of a comma fixed in the corresponding indicator device of an electronic keyboard computer (PC). When the computer is turned on, the instant of the passage of pulses Tj - a decimal discharge, counter 4 begins to work in the counting mode. The state of the counter is decoded by the decoder 5, from the output of which the T. pulse is fed to the ECM device, fixing the comma in (1 -1) -th digit. To change the position of a comma fixed in (1 -1) -th order, for example, in the 5th order, double-click the comma-key, and then enter the number 3 key Digit code from the encoder 2 and enter the comma-position entry sign from the PC, coming to the control inputs of the multiplexer, allow the reset pulse to pass to the control input of counter 4. Therefore, the counter will again start to work in the mode of counting Tm-10. Since the decoder 5 decodes only the p-ss) counter, then only a decimal pulse from the output of the decoder will go to the ECM device, fixing the comma in the 5th bit. Fixing the position of a comma in any other way a number of the above is similar. . The formula of the device for inputting information into a computer, comprising a serially connected keyboard and an encoder, the outputs of which are outputs of the device, characterized in that, in order to increase the reliability of the device, serially connected multiplexer, counter and decoder are connected to it, the output connected to to the device's output, the first inputs of the multiplexer are connected to the outputs of the encoder, the second inputs to the inputs of the device, one of the inputs of which is connected to the counter. Sources of information received in internal account when examination 1.Patent number US 3792466, Cl. G 06 F 3/02, 1974,

2. Application of Germany № 157467О, 1У1. G About F 3/02, 1974.