SU1265835A1 - Device for displaying information - Google Patents

Abstract

The invention relates to the field of automation and computer technology and can be used, for example, in display devices for sign information. The purpose of the invention is to expand the field of application of the device by increasing the amount of displayed information. The goal is achieved by inserting the shift register, the decoder and the second switch into the device. The entries entered allow two format characters to be written in the source ROM matrix. In the remaining blank parts of the ROM matrices, you can write, for example, additional characters or graphic elements. 2 Il.

Description

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The invention relates to automation and computer technology and can be used, for example, in sign information display devices.

The aim of the invention is to expand the field of application of the device by increasing the amount of information displayed.

FIG. 1 shows a block diagram of the device in FIG. 2, an example of a symbol image on the matrix panel (a), the placement of elements of a symbol in a matrix of a permanent storage device (ROM) of the prototype character generator (6) j, the placement of character elements in a matrix of a device’s symbol generator ROM .

The device contains a matrix panel 1, a block of 2 keys, a generator of 3 clock pulses, a counter 4., a block 5 of sweep 5 character generator 6, a code converter 7, a first switch 8, a shift register 9, a second switch 10, a decoder 11 (positions 12-26 the inputs and outputs of the blocks and devices).

The device works as follows.

In the first mode, a part of the characters of format 5 is formed, which are written into the ROM of the character generator 6 without compaction (similar to the prototype). In this case, the control signals at the inputs 18 and 25 of the device are absent. One of the bits of the symbol code from the input 21 of the device enters the third input of the first switch 8. The first switch 8j comes from the output 22 of the last to the second input of the character generator 6. The third input of the character generator 6 receives n-1 bits of the code characters from device 16 input. The information on the third and second (address) inputs of the character generator. 6 is. full n-bit character code. The code of the column (row) is formed at the output 14 of the counter 4 under the influence of clock pulses coming from the output 13 of the generator 3, This code is then fed to the input of the scanner unit 5 and to the first input of the code converter 7 and, without passing changes to its output 19, enters to the first (unfolding) code of the character generator 6, providing a scan of the selected character synchronously with the scanning of the image on the matrix panel 1,

In the second mode, the other part of the characters of the format 5 "7 are formed, which are written in the character generator ROM

6 with a seal (also similar to the prototype). In this case, from the input 1.8 of the device to the second inputs of the first switch 8 and the converter 7

codes, a control signal is received, under the action of which the digit of the character code from the input 21 of the device to the output 22 of the switch 8 fails. At the first input of the first switch

8 from the output 20 of the converter 7 of the codes, a synthesized bit of the character code is received, which then passes to the output 22 of the first switch 8. At the output 14 of the counter A, the code of the column (row) is generated by the clock pulses from the output 13 of the generator 3. Converter 7 codes depending on this code changes the value of the synthesized bit

character code in such a way that two adjacent matrixes of the ROM of character generator 6 are alternately selected, in which a character is written, and also converts the code of the column (row) for the purpose of

provide a sample of the elements of the character in the desired sequence. The converted column (row) code comes from, transducer output 19

7 code to the first input of the character generator 6, and the source code of the column (row)

comes from the output 14 of the counter 4 to the input of the scanner unit 5 to provide a scan of the selected character synchronously with the scan of the image on the matrix panel 1,

In these modes, the shift register 9, the second switch 10 and the decoder 11 do not affect the operation of the device, since the information is from the output.

17 of the character generator 6 passes unchanged to the output 24 of the second switch 10 and controls the operation of the key block 2, which generates control voltages for the matrix panel 1 at the output 12,

In the third mode, 7k9 format characters are compacted.

Claims (1)

The principle of compaction is illustrated in FIG. 2, where an example is shown of one of the symbols on the matrix screen 1 in the format. Fig. 26 shows an example of the placement of the elements of this symbol in the matrix of the ROM of the character generator 6 without compaction. FIG. Figure 2 shows an example of the placement of the elements of the same symbol in the matrix of the ROM of the generator 6 with compaction (the information of the ninth row of the matrix of Fig. 26 is recorded in the eighth column of the matrix of Fig. 2c). In this mode, the first switch 8 and the converter 7 of codes do not affect the operation of the device due to the absence of a control signal at the input 18 of the device; The digit code of the symbol from the input 21 of the device passes to the output 22 of the first switch 8 and the code of the row (column) from the first input of the converter 7 of the code passes to its output 19 unchanged. The information on the second and third (address) inputs of the character generator 6 constitutes the full n-bit character code. The first (unwinding) input of the character generator 6 is followed by the symbol sweep code from the output of the 19 converter 7 codes. During course 17 of character generator 6, for each sweep code, a string of character elements is formed, the eighth section of which contains information on the ninth character string. This information on the clock pulse is written to the shift register 9. The information from the output 17 of the character generator 6 is fed to the second input of the second switch 10. Information recorded in the shift register 9, from its output 23 goes to the third input of the second switch 10. In the shift register 9, the ninth character string is written element by element during the clock cycle. Under the influence of a control signal from the input 25 of the device, to the second input of the decoder 11 and the code of the row (column) coming from the output 14 of the counter 4 to the first input de encoder 11, at its output 26 a signal is input to the first the input of the second switch 10 and switching it from the information transfer mode from the second input to the transfer mode of information transfer from the third input to its output 24. The information at the output 24 of the second switch 10 constitutes a complete line-by-line decomposition of the selected symbol and controls the operation of block 2 keys, providing a scan of the selected symbol synchronously with the signals of scanner 5, whose operation is controlled by counter 4. Thus, in the initial matrix of the character generator ROM (Fig. 2c) two characters of format 79 can be written (an example of filling any half of the original matrix is shown in Fig. 2c). In the remaining parts of the ROM matrix, you can write, for example, additional characters or graphic elements. The invention is a device for displaying information E1 containing a series-connected clock generator, a counter and a sweep unit, the output of which is connected to the vertical buses of the matrix panel, the horizontal lines of which are connected to the outputs of the key block, the converter of the switches, the outputs of which are connected to the first inputs of the first switch and character generator, respectively the output of the first switch is connected to the input of the character generator, whose third input and the third input of the first switch are with the information inputs of the device, the output of the counter is connected to the first input of the code converter, the second input of which and the second input of the first switch are the first control input of the device, characterized in that, in order to expand the area of application of the device by increasing the amount of displayed information, it is entered shift register, decoder and second. switch; the output of which is connected to the input of the key block, the first input of the second switch is connected to the output of the decoder, the first input of which is connected to the output of the counter; and the second input is the control input of the device, the control vhrd of the shift register is connected to the output of the clock generator, and the information input with the output of the alternator is connected to the second input of the second switch, the third input of which is connected to the output of the shift register. about 4 M i mm .2