SU714390A1 - Information display - Google Patents

Description

The invention relates to the field of computer engineering and automation and is intended for use in an app-meter counter-divider, the output of which is connected to the first input of the character generator, a dynamic memory unit, the output of which is connected to the second input of the visual display of alphanumeric information contained in

Digital computer

A device for displaying alphanumeric information containing, as an indicator, an electron-beam tube £ 1J ·

However, such a device has the following disadvantages:

- large size, weight and volume;

- high voltage supply 15000 V;

- X-ray radiation, requiring shielding of the circuit to reduce interference;

- the need for digital-to-analog conversion of information when controlled by a digital computer.

The closest in technical essence to the proposed invention is an electric device for visual reproduction, containing a character repeater, a first memory unit, the first input of which is connected to the output of the character generator, an indication unit, the information input of which is connected to the output of the first memory unit, and a scanning unit £ 2) .

The disadvantages of the known electric device for visual reproduction: ₁₅ are low speed and low reliability.

The purpose of the invention is to increase the speed and reliability of the device for displaying information.

_m The goal is achieved by the fact that a control panel, a data input unit, the input of which is connected to the output of the control panel, a computer, the input of which is connected to the first output of the data input unit, a code converter, the first and second inputs _t which are connected to the second output of the data input unit and the output of the calculator - respectively, the address decoder, the input of which is connected to the first output of the code converter, the command generation unit, the first input of which is connected to the input m of the device, the second, the third, fourth and fifth INPUTS - with the second output of the code converter, the output of the address decoder, the first _{hour of} the code converter and the second output of the data input unit - respectively, and the output - with the first input of the dynamic memory unit, a matching unit connected to a command generation unit, the input of the matching unit connected to the third output of the code converter, and the output to the second ^; the input of the dynamic memory block, three shift registers, and the first output of the first shift register through the delay element is connected to. the sixth input of the .kOT ”mid forming unit, the input of the divider counter, the input of the second shift register and the second input of the first memory block, the third input of which is connected to the second output of the first shift register, the input of which is connected to the device input and the element block Y, the output of which connected to the control input of the display unit, and the input to the output of the scanning unit, the first input of the coil is connected to the first output of the second shift register, and the second input is connected to the seventh input of the command generation unit and the output of the third shift register, whose input is connected to the second Output of the second shift * register. ...

The drawing shows a block diagram of a device for displaying information. Research Institute.,.

The device contains a control panel 1, which provides the choice of an array of commands from the data input block 2, calculator 3, code converter 4, address decoder 5, command generation block 6, synchronizing the operation of matching block 7 and dynamic memory block 8, character generator 9, the counter is a divider 10, the first memory block 11, which stores information on-time (exposure) of connecting light-emitting diodes to a power source ^: U the output power gain is .4 catches, three shift registers 12, 14, 15, delay unit 13, Scanning block 16, the block of elements And 17 and the display unit 18.

The operation of the device for displaying information takes place in two stages:

inputting the corresponding array of encoded alphanumeric information from the data input unit 2 into the dynamic memory unit 8;

selection of information from dynamic memory unit 8 by command From calculator 3, which is given in this step 18.

the moment should be played on the display unit Using the control panel 1, the necessary array of information recorded in the encoded form is selected in the data input unit 2. When the data input unit 2 is output to the specified array, the Ready command is issued to the code converter 4 and to the command generation unit 6. In this case, the converter code 4 goes to the reception of information from the data input unit 2. Code Converter 4 adopted in the form of 32-times. In-line bipolar serial binary code converts the information into a 32-bit unipolar parallel code. After writing the code in the Converter 4, a sign of readiness is formed. Based on the Ready signal and the sign of readiness, the command unit 6 generates five consecutive pulses, according to which the matching unit 7 converts the 30-bit parallel code into a group of five consecutive 6-bit words. At the same time, command generation block 6 creates 5 addresses, starting from the first, for writing a group of 6-bit words to dynamic memory 8. When writing to dynamic memory 8 of the second group of words in block 6, addresses from the 6th to the 10th etc., before writing the entire selected information array to the writing unit, the code converter 4 switches to receiving information from the calculator '3, and the command generation unit 6 is switched to the command generation mode for reading information from the dynamic memory unit 8.

dynamic memory 8. After an array of information in dynamics — memory 8, the data input unit 2 in the computer 3 receives the signal 'Smiths' and removes the Ready signal. At

The choice of information to display on the display unit 18 is carried out by a command from the transmitter 3.

The team consists of an address and information part. The information part of the command contains data on the line number of the indicator and on which * message of m characters should be played on the selected indicator line. Based on the analysis of the address part of the command, the address decoder 5 gives permission to block 6 to generate m addresses in accordance with the information part of the command for reading data from dynamic memory block 8.

Character codes from dynamic memory 8 are fed to a character generator 9 to form a group of encoded electrical signals (fragments) that define discrete parts of a reproduced character. Fragments of the first row of reproducible 'symbols are recorded in the first memory block 11 according to clock pulses, which are formed by the first shift register 12. The number of clock pulses is m and they arrive synchronously with fragments from the character generator 9.' After recording the nth fragment in the first memory block 11 its outputs are connected to the column buses of the display unit 18. At the same time, the scanning unit 16 through the block of elements And 17 connects power to the buses of the first; row of the first row of LEDs of the display unit 18. After exposure, the delay unit 13 gives permission for the re-generation of le addresses by the unit 6, and hence the re-output of codes reproduced on the selected character string. In this case, the counter divider 10 switches to one-stroke and provides a choice of 11 fragments from the generator for the second row of the first row of LEDs of the display unit 18. In addition, the signal from the delay unit 13 serves as a command to switch the second shift register 14 by one clock cycle, the scanning unit 16 connects power to the bus of the second row of the first row of LEDs of the indication unit · 18. Next, the cycle repeats. After the information is output to the seventh row of the first row of LEDs of the display unit 18, the output of the second shift register 14 is applied to the third shift register 15, which switches to _ one bit and connects to the power supply the pin of the first row of the second row of the second row of LEDs of the display unit 18 , at the same time, command generation unit 5 switches to creating rh addresses for outputting information from dynamic memory unit 8 to the second line of display unit 18. Then the whole process is repeated until the output of information * K-th row, after which the cycle repeats displaying information.

A refined comparative calculation of the speed and reliability of the proposed and known devices showed that the time for entering information when applying the invention will decrease by 300,500 times, and reliability increases by 2-3 times.

Claims (1)

1. USSR author's certificate number 401991, cl. Q 06 F 3/14, 1973. 2, US Patent No. 3747073, cl. 340-172.5; 17.07,73 (prototype).