SU1218487A1 - Morse code generator - Google Patents

Abstract

The invention relates to communication technology and ensures the accuracy of reproduction of the elements of the mark. ycTpoficTBo contains decoder 1, program block 2, encoder 3, shift register (PC) 4, clock generator (GTI) 5, delay lines 6 and 7, switch 8, block 9 Zt 1 LLL f g g I (L and H | EO 4 00 Nj th 1

Description

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forming the end of the character, the key 10 and the tone frequency generator (GTP) 11. Clock and alys from the GTI 5 is sent to PC 4, where the sign of the recorded bit is moved to the subsequent ones, thereby changing the speed of the transfer; in 1 min to 4 groups in 1 min due to the increase in the pause between the characters. The code combinations of characters from the PC 4 through the switch 8 are fed to the control input of the key 10, to the signal input of which a tone (sound) frequency is fed from the GTP 11. At the output of the key 10 there appear short and long messages of the tone frequency, with

218487

In this case, the transfer rate (presentation) of the sign corresponds to 12 groups per 1 minute, and the transfer rate (presentation) of text in general to 4 groups per 1 minute. Changing the speed of text presentation to 12 groups per 1 minute is performed by switching the switch 8 to the corresponding gradation, and over 12 groups per 1 minute by increasing the frequency of the GTI clock pulse 5. Using the encoder 3, delay lines 6.7, switch 8 and GTP 11 made it possible to improve the accuracy of the reproduction of the elements of the mark in the process of teaching radio telegraphists. 2 Il.

The invention relates to communication technology and may be used for the training of radio telegraph operators and the transmission of information by the Morse code in the auditory communication channels.

The aim of the invention is to ensure the accuracy of the reproduction of the elements of the mark.

FIG. 1 is the main structural and electrical circuit of the Morse code generator; in fig. 2 - plots of prints, explaining his work.

Morse code shaper contains decoder 1, program block 2, encoder 3, reference 4 shift, generator 5 clock pulses, first delay line 6, second delay line 7, switch 8, block 9 Formation of the end of the sign, key 10 and tone generator 1 1 .

Sensor Morse code works as follows.

Preliminary, using program block 2, set Morse code characters, which the trainee must work on this occupation. Switch 8 sets the speed at which the text is presented to the student, for example, at the beginning of a group four minute training. The speed of the formed mark is established by twelve groups per 1 minute.

When the power is turned on, the decoder 1, the shift register 4 are reset, the generator of 5 clock pulses is started (FIG. 2 e) and the generator 11 of the tone frequency. On the inputs of block 9 of the formation of the end of the mark are received About with outputs n + 1-Zp

shift register 4, ensuring the appearance at the output of block 9 to form the end of the sign of a single pulse (Fig. 2, fii). This pulse arrives at the input of the decoder 1 and translates

its in the first position. A single potential from the output of the decoder 1 through the software block 2, set to a given letter (digit), goes to the corresponding input of the encoder 3, ensuring that a Morse code sign is formed at its output in the form of a binary formalized number in which the dot corresponds to 1, the dash is 111, and the pause between the elements of the sign is O.

At the same time, a single impulse from the output of block 9 of forming the end of the sign through the first delay line 6 is fed to the first control input

shift register 4 (FIG. 2, B), having transferred the latter to parallel recording mode, and having passed the second delay line 7, enters the second control input of shift register 4 (FIG. 2.2), ensuring parallel writing of the binary formalized number c the outputs of the encoder 3 in the register 4 shift.

Clock pulses from the generator output 5 clock pults3

ows to the clock input of the shift register 4 (fig. 2, a), the character written from the 1st to the nth digit of the shift register 4 is moved to the subsequent bits up to 3p, thereby changing the transmission speed text from twelve groups in 1 min to four groups in 1 min (Fig. 2), due to the increased pause between the characters.

The arrival of 1 in (n + 1) -th digit of shift register 4 provides the output at the output of block 9 of the formation of the end of the sign of a zero potential, which stops when the output of the last unit of the transmitted sign is removed from the output (discharge) . Code combinations of characters from the output of the 3 shift register 4 through the text speed switch 8, which is in the four groups in 1 min position, are sent to the control input of the key 10, to the signal input of which the tone (sound) frequency is supplied generator output 11 tone frequency. At the output of the key 10, short and long waves appear (depending on the Morse code shown) tonal (audible) frequency, i.e. the melody of the sign, while the transfer rate (presentation) of the sign corresponds to 12 groups / min, and the transfer rate (presentation) of the text in the whole, 4 groups / min.

Changing the speed of text presentation to 12 groups / min is made by switching the switch 8 to the corresponding gradation, and over 12 groups / min by increasing the frequency of the clock pulse generator of 6 clock pulses.

The use of the invention for the training of radio telegraphs expands the didactic capabilities of the device (Morse code sensor), since it makes it possible from the very beginning of learning to receive by ear to use the phonetic method, i.e. The perception of the Holistic sound of a sign, its melody. This eliminates the possibility of perceiving and determining the signs of a Morse code by counting the number of numbers 18487

mouthpieces (points) and long (dashes) elements of the mark.

Compression marks at the initial stage of training, transfer (presentation)

5 of them at a speed of 12 groups / min, and the text as a whole — from 4 to 11 groups / min. Force the trainee to reproduce an amicable melody of the sign. Reducing the spacing between signs and groups

10 allows the rate to be increased from 4 to 12 groups / min. Increasing the speed of more than 12 groups / min is provided by changing (increasing) the frequency of the clock pulse.

15 Use of a constant speed during the transmission (presentation) of a mark (12 groups / min) and a gradual abrupt (stepwise) change in the transmission speed (presentation) of text

20 (from 4 to 11 groups / min) in the process of learning at the initial stage will repeat the accuracy of reproduction of the elements of the sign.

Claims (1)

25 claims A Morse code shaper containing a program block, a key decoder and a shift register, a clock input 30 of which is connected to an output of a pulse generator, and the shift register outputs are connected to inputs of a character end shaping unit, in order to ensure accuracy of reproduction of character elements a tone generator, a switch, an encoder and the first and second lines connected in series are entered into it 35 delays, while the output of the character end shaping unit is connected to the inputs of the first delay line and the decoder, the outputs of which are connected to the inputs of the encoder through the software block, the outputs of which are connected to the information inputs of the shift register, the first and second controls of which are connected to the first and second outputs delay lines, the shift register outputs through the switch are connected to the control input of the key, the signal input of which is connected to the output of the tone frequency generator.