SU467349A1 - Device for remote data processing - Google Patents

Description

one

The invention relates to the field of computer technology and is intended to ensure the accuracy of information processing with error correction.

A device for remote data processing in a system with a peripheral subscriber data processing center is known, comprising a control unit, the outputs of which are connected to the inputs of the memory unit, the interface unit and the reception and transmission unit connected in series, as well as the inputs of the print unit and the presentation unit information, the second input of which is connected to the output of the memory block.

In order to improve noise immunity, a buffer storage unit is inserted into the proposed device, the outputs of which are connected to the control unit and the printing unit directly, and to the memory unit through a confidence raising unit, one of the inputs of which is connected to the output of the printing unit, one input being entered the buffer memory unit is connected to the output of the interface unit, and the other to the output of the memory unit.

The drawing shows a block diagram of the proposed device.

The device contains a memory block 1, information presentation block 2, transmission and reception block 3, interface block 4, control block 5, increase reliability block 6, block

7 print, block 8 buffer memory. The listed device block complex corresponds to a device installed both on the peripheral side and in the data center.

The buffer memory unit 8 is for inputting information. The capacity of this block is determined by the size of the code alphabet and service code combinations. The information is entered into the buffer memory block 8 in a parallel manner, and the output is sequentially serialized. The control over the input and control of the output of information for block 8 is carried out

the control unit, which also determines the coding mode of the generated (or input) information, decrypts the code combinations ("start," reshoot, etc.), determines the decoding mode and

performs error correction.

Memory unit 1 contains a selective array update node used in block-by-block transmission of an array of information. Block

4, when connecting the proposed device to the shared-use receiving-transmitting unit 3, contains a switching node (in order to simplify the scheme, the node in the drawing is not shown) when servicing several subscribers.

Information to the device input 9 comes from the data center or from the operator from the keyboard of the peripheral equipment. The information supplied to the input 9 is encoded and, through the boosting unit 6, enters the memory unit 1. If the information comes from the communication line from the other subscriber to the input 10, it is decoded in the device, and the input from memory block 1 to print block 7 is performed on input 11 through buffer memory block 8 and print block 7 to block 6 increase reliability to verify the reliability of the printed information.

The device works in the following way.

Consider entering information from the keyboard unit. The buffer memory block 8 and the memory block 1 are set to “zero. The initial information from the keyboard device is fed to the input 9, which is open if the proposed device is in the mode of receiving information. Inputs 11 and 12 are closed. The output from block 8 of the buffer memory to the input of block 6 to increase confidence is closed. If the initially entered information corresponds to the start code combination, then from the output of control block 5 a signal is received to allow input of this and subsequent information to the input of block 6 for increasing confidence.

The "input enable" signal is generated after the "start" combination is decrypted. The information entering block 6 of reliability enhancement is encoded and simultaneously transmitted to block 1 of the memory in which it is accumulated, and its display is visible on block 2 of the presentation of information. The time interval between keystrokes when typing information can be arbitrary. By the moment of completion of the formation and editing of the message, the "transfer" key is pressed, which corresponds to the entry in the buffer storage unit 8 of the code pattern "end".

Upon completion of the decryption of this combination, in block 5, control signals are generated to prohibit the entry of information from input 9, to complete the coding procedure for the input information, and to output information from memory block 1 through interface 4 and transmission reception / reception unit 3 output 13. After the information from memory 1 has been output, the control part of the transmitted message is then read from reliability enhancement 6. At the end of the message transmission, input 12 opens, and the device is set to receive information from the communication channel.

Switching of inputs is carried out from control unit 5. Since the device uses codes with detection and error correction, in the presence of errors of small multiplicity they are corrected by the code itself, and in the presence of errors of greater multiplicity, a message is generated anew upon reception of code information "re-request. If the sent message does not contain errors, then the response information arrives. If the dialogue of the subscribers ends there, then

response information is included

combination "end of communication session. Block 3

reception-transfer on input 10 information

it does not accept.

If there are no errors after decoding the response information and deciphering the code combination "the end of the communication session, in control block 5, signals are generated for overlapping input 12 and opening input 11. Output of print information to print at input 11 from memory block 1 through block 8 of the buffer memory So, the printing unit 7 to the reliability assurance unit 6 is produced via the output 14, wherein the information is again decoded to determine the accuracy of the recording and storage in the memory and printing unit 1. When errors of any multiplicity are detected, an alarm is triggered, and the printed information is rejected.

When entering information on input 9 to a device from a data center, the device operates in the encoding mode, with the only difference that the information is entered without any pauses that are allowed when generating a message.

Subject invention

A device for remote processing of data in a system with a processing center for such peripheral subscribers, comprising a control unit whose outputs are connected

with the inputs of the memory unit, the interface unit and the reception-transmission unit connected in series, as well as the inputs of the print unit and the information presentation unit, the second input of which is connected to the output of the memory unit, characterized in that, in order to improve noise immunity, a buffer memory block, whose outputs are connected directly to the control unit of the printing unit I1, and to the memory block through

a reliability increasing unit, one of the inputs of which is connected to the output of the printing unit, with one input of the inserted buffer memory unit connected to the output of the interface unit, and the other to the output of the memory unit.