SU736144A1 - Information display - Google Patents

Description

I

The invention relates to automation and can be used as a device for the preparation of punched tapes in the telegraph, as an indicator in devices for processing and transmitting information, etc.

A device for displaying an information block containing an input block, a memory block and a symbol generator l is known.

Disadvantages of the device - the complexity and large amount of equipment.

The closest technical solution is a device for displaying information, containing an input unit, the output of which is connected to the information input of the memory unit, the control input of which is connected to the output of the first counter-a, and the output - to the computer-generated character generator BxdaoM to the output of the second counter, the output of the symbol generator is connected to the corresponding: by the next input of the utvlenny unit, the output of which is connected to the input of the display unit, the setup inputs of the first to the second

The counters are hooked up to the corresponding input of the device, and the switch output of the second counter is connected to the clock input of the first counter 2.

In order to display the recorded information in a known device, a continuous oirpoc storage occurs using the address counter. With the coded code of the sign comes the B generator of s1smvolov. With the help of counting, a 351

to columns. In the amplification unit, the amplification of the information signals and the generation of control signals of the control unit occur. The next character is then read and displayed. Memory, For a period of 15 times, the ccc block of R15 reads all the contents of the memory. The frequency of the memory cell is associated with the frequency of the scan, and the frequency of the same memory cell should be sufficient to obtain a flicker-free image in the search box.

Disadvantages of the device - the capacity of the memory device does not exceed the capacity of the display unit, which is usually insufficient, and with the south of the memory control device operating in dynamic mode. To write a format in a given memory N €, you need to write the address code of the record and generate it:. the write signal in the device comparing the write address codes and the current address count code.

The circuit of the invention is the expansion of the field of application of the device due to the possibility of obtaining a dynamic EO1X image and simplifying the mouth of the East Coast.

Circuit, it is achieved that the device contains a pulse shaper, a frequency divider, a third counter, the clock of which is connected to the output, a frequency divider, a decoder, which is connected to the output of the TpeTbeiXi counter, the switch , and the controller is connected to the “First output of the de11Sh (| zrago-pa, tri-element AND and the OR element. The output of which is connected to the clock to the input, B1Orkego counts, and the first with the first output of the la-i- pulse generator; the second output is connected to first the input of the first element AND the input of the first element AND connected to the clock input; frequency divider and connected to the output KOb / iMj raTopa, The output of the first element AND connected-ieiH with the second input of the element OR, the output of the Vure element AND is connected to the corresponding input of the control unit -shsh, the first input of the second element And is connected to the corresponding input of the iwuuyrator, and the second input of the BTOposx element And is connected to the nepBbj vj input. Guatat & 1X liXiiiy.nicoB to is connected to the first output of the decoder, in the mountain of which is connected to the first input of the third element And, and third exit - with with The corresponding input of the jTipaDnejffijf unit, the output of the third signal And is connected to the recording input of the memory side, and the second input is connected to the second input of the pulse shaping unit and connected to the output of the output unit, the third counter inputs and the frequency switch are connected to the installation inputs of the first and second / second Wow counters.

In the drawing, 1p5 is derived from the IKI-ONAL diagram of the device,

Device unit block 1, block 2 of memory, gene | eac-3 skmopav, block 4 of control, block 5 lndnkapnk,

the first counter 6, the second counter 7, the third counter 8, the imaging unit 9 pulses, the decoder 10, the switch 11, the first element And 12, the second element And 13, the third element And 14, the element OR 15 and the divider 16 frequency.

The device works as follows.

Under the influence of clock pulses, the frequency divider 16 and the third counter 8 continuously work. The decoder 10 connected to the outputs of the third counter .4 detects the signal of the sweep period appearing at the first output of the decoder and arriving at the control input of the switch 11. At the same time the output of switch 11 appears the required number of sweep frequency pulses and then the higher frequency pulses of the first clock cycle. The number of pulses of the scanning frequency is equal to; the number of displayed characters multiplied by the number of columns of the scanning of the sign, taking into account the gap between the characters (the division ratio of the second counter of the column counter is equal to the division ratio of the 16 frequency divider.

For example, when placing a mark into a 5x7 matrix and two interdigit columns, the number of columns of the mark sweep, and hence the division factors of the second counter 7 and the divider 16, are equal to seven frequencies.

The division ratios of the first and third counters are equal to the storage capacity.

Claims (2)

1. Mathematical indicator on the elements of a glow discharge with saglover. Electronics, Nfe 5, 197О. 2. Kn zev AD. Gas discharge of the indicator panel with self-scanning. Electronic Engineering, Series 4, Issue 8, 1976 (prototype).