SU490268A1 - Telegraph device to eliminate detected errors - Google Patents

Description

one

This invention relates to a telegraph communication technique.

A telegraph device is known for eliminating detected errors, which contains a storage device, the input of which is connected to the output of a key, and a control unit.

However, in a known device, the amount of memory is limited, and there are no functional units for automatically erasing a word transmitted in error.

The aim of the invention is to increase the memory capacity, provide automatic error analysis and erase the word transmitted in error.

For the key input, it is connected to the output of the shift register, the control outputs of which are connected via the decoder to the corresponding inputs of the control unit, one of which is connected to the parallel input of the error analysis unit and the nepiBOMy distributor input, the outputs of which are connected to the erasure pulse inputs of the data accumulator, performed, for example, in the form of a shift register, the control outputs of which through the error analysis block are connected to the corresponding inputs of the control unit, the additional outputs of the latter By connecting the respective inputs of error analysis unit, one of whose outputs is connected to a control input of a key, and the other - to the second input of the distributor.

FIG. 1 shows a block diagram of the proposed device; in fig. 2 shows its functional diagram.

The proposed device contains an input interface 1 and an input shift register 2, a key 3, a shift register 4, an output interface block 5, a decoder block 6, an error analysis block 7, a control block 8 and a distributor 9 (Fig. 1).

The input of the register 2, the shift consisting of the register 10 of the shift (Fig. 2) and electronic keys 11, is connected to the output of the conjugation unit 1, and the output of the register 2 is connected to the input of the key 3 and the decoder unit 6. The input of the key 3 is connected to the output of the error analysis block 7, and the output of the key 3 is connected to the input of the shift register 4. The input of the shift register 4, consisting of triggers grouped into groups of 7 and electronic gates, is connected to the outputs of the electronic key 3 interfacing unit 3 and the distributor 9, and the outputs of the register 4 are connected to the inputs of the error analysis block 7 and the interfacing unit 5.

The input of block 6 of the decoder, consisting of decoders 12, 13, 14, 15, respectively, on the combination of Latin, Russian digital registers and the space of trigger 16, is connected to the output of shift register 2, and the outputs of block 6 are connected to the inputs of block 7 of error analysis, block 8 control and distributor 9. The input of the error analysis block 7, consisting of electronic keys 17, 18, decoders 19, 20, 21 and 22, respectively, on the combination "colon and letters" F of the trigger 23, inverter 24, logic circuits "And 25, 26, 27, 28, 29, “OR 30, connected to the output of the register 4 cDv ha, block 6 decrypt moat, the control unit 8, and the Block 7 output is connected to the input of the electronic key 3, the distributor 9 and the control unit 8. The input of control unit 8, consisting of switch 31, counters 32, 33, electronic switches 34, 35, time relays 36, 37 of logic circuits "And 38, 39, 40, 41, is connected to the output of error analysis unit 7, unit 1 block 6 decoders, and the output of block 8 is connected to the inputs of blocks 1, 5 of the interface and block 7 of the error analysis. The input of the distributor 9, consisting of the distributor triggers 42, amplifiers 43, 44, logic circuits 45, 46, is connected to the output of block 6 decoders, error analysis block 7, interface 1, and outputs of the distributor 9 are connected to the erase pulse inputs .in an accumulator of information made, for example, in the form of a shift register 4.

Before the start of the telegram transmission, the switchblock 31 of the block 8 is installed in one of the following positions: "Word of telegram," Digital cryptogram, "Alphabetical cryptogram. In this case, the device is connected between the telegraph unit 47 and the communication channel 48 and, in addition, provides control of the operation of one of the AND 26 or 27 logic circuits.

The operation of the device begins with the framing of the telegram, the beginning of which is the combination of "space and" Russian register.

Upon receipt from the telegraph apparatus of the starting parcel of any combination, the start-stop generator of block 1 is started, the clock pulses of which with the speed of the telegraph apparatus further provide advancement in registers 10, 4 of the shift of conversions in block 1 of the sign combinations.

The receipt of the stop parcel of the sign coincides with the generation of the start-stop generator of block 1 of the seventh clock pulse, which is applied to the control inputs of the electronic keys 11 of block 2, to the logic circuits And 38, 39 and 41 and: to the correct inputs of the electronic keys 34, 35 of the block 8, through which the installation is provided each time, counters 32, 33 to the initial position of the nip and in the absence of combinations of a space and a Latin register on the control inputs of the triggers of the distributor 42 of the block 9. At the same time, the combination recorded in the register 10-shift of block 2 through open The coded keys 11 are connected with a parallel code to decoders 12, 13, 14, 15 of block 6, and if this combination is prohibited for these decoders, it is not possible for any of the outputs to have a control pulse.

If the enabled combination is the switch from register 10 shift of block 2, then the following occurs:.

- in the case of the combination of the space, the control pulse from the output of the decoder 15 of block 6 is fed to the control inputs of the keys 17,

18 and the logic circuit "And 28, 29 of block 7, the logic circuit" And 39 of block 8, to which a clock pulse from block 1 is simultaneously applied, resulting in (key 35 is locked and counter 33 is started and

sets the first trigger of the distributor 42 of the block 9 in the position “I, and the rest of the triggers in the position

-when the combination "digital register control pulse output from the decoder

14 through the trigger 16 of the block 6 is lodged on the switch 31 of the block 8;

- when the combination "Russian register control pulse from the output of the decoder 13 through the trigger 16, block 6 is fed to the switch 31 of the block 8;

When the Latin register of the control pulse from the output of the decoder 12 of the block 6 is supplied to the logic circuit AND 38 of block 8, to which the seventh clock impulse from block 1 is simultaneously fed, as a result, the key 34 is locked and the counter 32 is started.

When the start of the second telegraph sign arrives, it starts up again.

The starlock generator of the block 1, the clock pulses of which again provide the recording of the sign in the shift register 10 of block 2, and they rewrite the first telegraph sign through the electronic key 3 into the shift register 4.

In order to stop the sending of the second telegraphic sign, the operation of blocks 2, 8 and register 6 is repeated, and in the triggers 42 of the distributor 9, the promotion "1.

The operation of the device is similar to that discussed above and when writing further to the registers of 10, 4 shift telegraph signs, but upon receipt of the next (second) combination

The space indicating now the filing of the word (group) of the transmitted telegram, the control pulse from the decoder 15 of block 6 is re-applied (To blocks 7, 8 and distributor 9. The operation of block 8 is repeated. Signs recorded in the first two groups of trigger register 4 of the shift, through the public keys 17, 18 of the block 7, the parallel code is switched through the switch 31 installed in one of the positions

block 8 on the decoders 19, 20 and 21, 22.

TO EXCLUDE the possibility of FALSE

the device triggers, in block 6 a trigger 16 is entered, which stores the register in which the sign is transmitted from the telegraph at the given instant.

If the telegraph operator made a mistake in the word (group) and corrected it, then the last two combinations of the word (sadness) are allowed for the decoder 19, 20 or 21, 22 blka 7. Therefore, on the output of the decoder, there are control pulses that go through From the logic circuits "And 25, 26 or 27 and" OR 30, together with the control pulse from the decider 15 6, set the trigger 23 of block 7 in the position "Error. The electronic valve 3 is closed. From the output of the logic circuit "OR 30 of block 7, the pulse" Error is also fed to the logic circuit "And 45, 46 and through one of them and the amplifier 43 or 44 of block 9 provides for erasing the word with the error code.

Since the transfer after the intermixing by the telegraph operator is resumed from the last correctly transmitted word (group), for its transfer from the retransmission to, the unit

7, trigger 23 has been entered, prohibiting writing to shift register 4. After the next combination, the space (end of the last correct word transfer) pulse from the output of the decoder 15 of block 6, re-opens the electronic keys 17, 18 of block 7, but so to register 4 no shift was made, then the keys through them and the switch 31 of block 8 to the decoders 19, 20, il-n 21, 22 of block 7 two sign combinations are prohibited. Therefore, the trigger 23 of the block 7 through the inverter 24, the logic circuit 29 is set to its original position. The operation of the block 8 and the distributor 9 is repeated.

After the end of the telegram, the combinations "space and" the Latin register are transmitted.

In this case, pulses from block 1 and from decoder 15 of block 6 simultaneously arrive at the input of the logic circuit "AND 39 of block 8". Pulses from its output close the electronic KEY 35 and start counter 33, which, counting, starts the time relay 36. Several combinations of the space operation of the blocks 1, 6, 7, the distributor 9 and the shift register remain the best. If now after (combinations of

The "space is transmitted by the combination of the Latin register, then the logic circuit" And 38, electronic key 34, counter 32 work in the same way.

From the right impulses from counter 32 and time relay 36, the 40 and 40 circuitry triggers and triggers relay 37. In turn, time relay 37 and the pulses from unit 1 start up the start-stop generator of unit 1, which reads into the communication channel the remaining register 4 shift information.

Upon completion of the operation of the start-stop generator of unit 1 on the control unit 8, a signal lamp will be generated. The register is cleared, the switch 31 of block 8 is set to the "Off" position. The operation of the device ends there, the telegraph device 47 is connected via blocks 1, 8, 5 to

link 48.

Subject invention

Telegraph device to exclude

detected errors, containing the information accumulator, the input of which is connected to the output of the key, and the control unit, which, in order to increase the memory size, automatically analyze

errors and erasing the word, pers-chappy with an error, the key input is connected to the output of the shift register, the control outputs of which are connected via the decoder to the corresponding inputs of the control unit, one of

which are connected to the parallel connected input of the error analysis block and the first input of the distributor, whose outputs are connected to the inputs of erasing pulses of the information accumulator, executed, for example, in the form of a shift register, the control outputs of which through the error analysis block are connected to the corresponding inputs of the control unit, the additional outputs of the latter are connected to the corresponding. pm error analysis block, the olpp from the outputs of which is connected to the control r, the key stroke, and the other to the second input of the rpgpsdslntel.