SU419884A1 - DEVICE FOR REGISTRATION OF INFORMATION - Google Patents

Description

one

The present invention relates to the field of computer technology and is intended to print information on media.

Information recording devices are known that contain a storage unit, a data recording unit on a carrier, a typewriter with each type of levers, each equipped with code and synchronization holes, and an electronic node containing a reading unit, clock selections, a register of a zalisi and polling the character code. connected to the character register, and the control unit containing the control circuit modulo the character code whose inputs are connected to the outputs of the character register, and its output is connected to the signal panel ization "eiopravnosti, and a coincidence circuit.

A disadvantage of the known devices is the presence of a large number of Code photo-relays, which lowers the reliability of operation and increases the dimensions of the reading unit. In addition, the presence of a sync pulse is not monitored in these devices.

The proposed device is characterized in that it comprises a sync pulse distributor connected to one of the delay elements, which is connected to other inputs of the interrogation of the 1 symbol code and the control unit, a clock extraction unit, which is connected to the second delay element connected to the control unit, and others The inputs of the matching circuit of the character code entry.

In addition, the device is characterized in that the control unit contains a trigger connected to a coincidence circuit, a modulo-control: control circuit and a alarm panel connected to the coincidence circuit.

This makes it possible to reduce the number of code photo relays and, thus, to increase the reliability of the device.

Diagram of the device shown in the drawing.

The device consists of a storage unit 1, a unit 2 recording data on a carrier; a typewriter 3 containing lettered levers 4, each of which is equipped with code 5 and synchronized 6 holes located on the lever 4 together to attach the character block 7; a reading unit 8 consisting of a code 9 and a synchronizing 10 photo relay; block 11 of the allocation of the clock, register 12 characters, the distributor

sync pulses 13, coincidence circuits 14, entries of the sped gage code into register 12, coincidence circuits 15 of the interrogation of the symbol code, delay elements 16 and 17; control unit 18, which contains the control circuit 19 modulo code

symbol, alarm failure panel 20, last clock trigger 21, coincidence 22.

The register of 12 characters contains the storage elements 23.

The device works as follows.

Entering information into the electro-computer system is accompanied by printing a document on the pinning machine 3. At the same time, lever 4, moving to the point of impact, triggers code 9 and synchronizing 10 photo relays. The number of actuations of the syncating photo relay corresponds to the maximum number of elements of the used code, and the number of operations of the code photo relay 9 depends on the code combination assigned to each lettered lever 4. The synchronizing holes 6, in an amount equal to the number of elements of the used code, and code holes 5, in accordance with the code combination assigned to this lettered lever 4, positioned along the generators of the movement of the lettered lever to the impact point, passing respectively past the synchronizing 10 and odovogo 9 photoelectric. The pulses from the synchronizing photo relay formed by the sync pulse allocation unit 11 are fed to the clock input of the distributor of 13 sync pulses. From the outputs of the distributor 13 to one of the inputs of the coincidence circuit 14 of the character code recording 14, the gating pulses are output sequentially corresponding to each synchronizing hole 6 of the letting lever 4. The other inputs of the indicated circuits 14 receive signals output from the code photo relay 9. When the signal coincides with the code 9 and synchronizing 10 photo relays in the storage element 23 of the corresponding bit of register 12 characters enters the information. The cycle of writing the character code to the register 12 ends after the passage of the last synchronizing hole 6 of the lettered lever 4.

The impulse from the distributor 13, corresponding to the last sync pulse of the photorelay 10, through the time introduced by the delay element 16, goes to one of the inputs of the coincidence circuit 15 of the character code poll. When the specified signal coincides with the storage element 23 of each bit, the transfer of the symbol character to the drive 1 and the data recording unit 2 on the carrier occurs. The control unit 18, p | ensures the normal operation of the device. The control circuit 19 modulo the symbol code detects distortions in the code read from the letter lever 4.

The control of the number of sync pulses in a print cycle is carried out as follows.

The signal from the output of the distributor 13, corresponding to the last clock pulse, sets the trigger 21 of the last clock pulse to "1 state. An impulse from the output of the sync pulse allocation unit 11 through the delay delay element ale 17 gives the matching circuit 22, to the input of which the zero output of the trigger 21 of the subsequent sync pulse is connected. In the absence of one of the sync pulses, the signal at the output of the distributor 13 is absent and the trigger 21 of the sync pulse remains in the "On state." In this case, the signal from the output of the joint scheme 22 is fed to the malfunction alarm panel 20. The length of the signal delay by the element 17 connected to the output of the sync pulse allocation unit 11 is chosen to be longer than the minimum movement time of the lettered lever 4 relative to the synchronizing photo relay 10 and shorter between the forward and reverse movement of the lever 4 relative to this photo relay.

Subject invention

Claims (2)

1. A device for recording information containing a typewriter with lettered levers equipped with code and synchronization holes and optically connected to a reading unit that is connected to one of the inputs of the schematic diagram of a symbol code recording and a sync pulse extraction unit, connected to a recording unit data and outputs of the matching codes of the character code polling, one of the inputs of which are connected to the IK character register connected to the matching circuits of the character code entry and the control unit, and delay elements, It is distinguished by the fact that, in order to simplify the device and increase its reliability, it contains a clock distributor connected to one of the delay elements, which is connected to other inputs of the symbol code poll and the control unit, the clock extraction unit, which is connected to the second element a delay connected to the control unit and other inputs of the matching circuit of the character code entry. 2. The device according to claim 1, characterized in that the control unit comprises a trigger connected to the assembly scheme, a control module modulo code and an alarm panel connected to the coincidence circuit. R L