SU468274A1 - Device for displaying information - Google Patents

Description

(54) DEVICE FOR DISPLAYING INFORMATION

one

The invention relates to computing and can be used in information display equipment.

Information display devices are known that contain serially connected indicator matrix, a decoder and a counter along the X axis, a clock pulse generator connected to counters along the X axis and Y and a sign encoder, the counter along the X axis connected to the decoder.

The proposed device is characterized in that it contains a coordinate selector, the outputs of which are connected to the indicator array, and the inputs ,. - to the sign encoder and the decoder along the X axis.

This makes it possible to reproduce graphic and alphanumeric information.

FIG. 1 shows a block diagram of lagged device; in fig. 2 - plot of the indicator matrix.

The device contains the counter Y 1, the decoder Y 2, the indicator matrix 3, the coordinate selector X 4, the encoder, characters 5, the decoder X 6, clock generator (GTI) 7, the counter X 8,

the initial coordinate bus Ud 9, the initial coordinate bus X Yu, the launch bus 11 from the digital computer and the code bus of the displayed sign 12.

The outputs of the decoder 6 are connected to the input of the coordinate selector 4, the second input of which is connected to the outputs of the sign encoder 5. The number of outputs of the encoder 5 is equal to the number of elements of the decomposition of the character on the string m (in Fig. 1, five outputs). On the code bus of the displayed character 12 from the digital computer (il. Buffer memory) a pulse enters the sign encoder, the second input of which receives clock pulses from the output of the clock pulse generator 7. Codes of initial coordinates for displaying characters X

and Y across buses 10 and 9 are fed to the inputs of counters X and Y 8 and 1. As a result, a high voltage level appears on one of the horizontal buses of the electroluminescent matrix 3 connected to the outputs of the decoder 2, (the corresponding horizontal busbar). In addition, on one of the outputs of the decoder 6, the inputs of which are connected to the outputs of the count-; Chica 8, a high level appears that; corresponds to the choice of one of the vertical tires of matrix 3 (the number of outputs of the decoder 2 is equal to the number of rows of the matrix, and the number of outputs of the decoder 6 is equal to the number of columns of the matrix). : Coordinate selector 4 provides a choice of simultaneously In / - vertical tires of matrix 3 (for example, five). The number of the first of the selected tires is determined by the contents of the X counter, the rest (trl - 1) tires immediately follow the first one. Codes X and Y (U, 9), arriving at the digital computer, о o determine the initial coordinates of the symbol display. Subsequently, changing the X coordinate when displaying a line (formula) is provided by inputting 8 pulses from the clock generator output to the count input. impulses 7. The specified impulses arrive with frequency; character changes. The discreteness of the change in the initial dinat is determined by the distance between the elements of the adjacent rows and the columns of the matrix. If discreteness is taken to be equal to the size of the character (seven rows in height and five columns in width), the coordinate selector 4 is substantially simplified. The encoder 5 provides the decomposition of the sign on the elements of the string. As an encoder, for example, a ferrite matrix can be used, for example, with simultaneous interrogation of all cores of a string. When polling the cviHXpOHHO line with clock pulses, read pulses arise at the outputs of the cores, corresponding to the elements of the azle or envelope line. The successively parallel code obtained as a result of w is transmitted to the inputs of the coordinate-tioro selector 4, which at the time of displaying the sign connects the outputs of the encoder 5 to the five vertical isnas of matrix 3 selected according to the initial coordinate XQ (each of the output tires of 1 5 corresponds to the character string element). The voltages corresponding to the character string code from the outputs of the selector 4 enter the selected vertical tires of the matrix 3, as a result of which some elements of the matte light up. With the switching of the next row of the matrix, the code of the next row of the character, etc., is fed to the inputs of the five vertical busbars, etc. Each sign is decomposed into seven rows. At the end of the mapping ZiadZ on the counting input of the counter 8, there are pulses from the output of the generator 7, as a result of which the next character will be displayed with a shift to the right by the width of the interval. Consider 6ojiee in detail the process of forming the FIG. 3. FIG. 2 shows a section of the material 3. Selected tires of the matrix are marked with a sign. A voltage is applied to the selected horizontal bus (j, sufficient to ignite the element of matrix 3. The voltage to the selected vertical tires is supplied in accordance with the code of the sign line. For example, the code of the first line of the digit 3 is from (the code in the code corresponds to the elements of the line). Selector 4 applies voltage (left to right) to selected vertical ishns: U.OV, OV, OV, and (all U are not selected) the result only through some elements of matrix 3 current flows (current direction in Fig. 2 is shown in dotted line with, with and they are set on fire (in FIG. 2; circled). Through the remaining diodes of matrix 3, no current flows, after switching the next row of matrix 3 to the input of selector 4 from the output of encoder 5, code 1.O001 is received, the second line of digit 3 is displayed etc. Subject of the Invention A device for displaying information containing serially connected indicator matrix, a decoder and a counter along the Y axis, a generator of clock pulses ™ connected to counters on the X and Y axes and a sign encoder, the counter on the X axis connected to decoder oh and l ich th e o f c: the fact that, in order to expand the field of application ustroysttva, it contains the coordinate selector, the outputs of which are connected to the test matriue, s inputs - the mark to the token and deiik} Rhatore on axis X.

T

0

Fig, 1

and and and s ss and and

UZ 2