SU734688A1 - Device for priority servicing of messages - Google Patents

Description

one

The invention relates to the field of computer technology and can be used in message switching systems.

A device for servicing messages is known, comprising an input and output interface blocks, an address coder, a control unit, a memory, an address analysis unit, an input storage unit, a register, a polling address block, a decrypt. torus, output storage unit, encoder i.

The disadvantage of such a device is that it requires significant

equipment costs.

A device for message messaging is known, comprising a memory block, a number register, a message address decoder, processing registers, a priority priority counter, a channel counter, a control block, a message end decoder, a cell distribution block, exchange registers, a header end decoder, C70 memory that stores block, elements OR 2.

The disadvantage of this device is that it also requires a significant amount of equipment.

The closest to this invention in technical essence and the achieved result is a device for priority service of messages, containing signal combining units, AND, OR circuits, a polling unit and a register, input and output accumulators, reverse failure counters, decryptTqa a.res.

The disadvantage of such a device is that it has little speed due to the sequential nature of the analysis of priorities and the switching of messages.

The purpose of the invention is to increase speed.

The goal is achieved by the fact that in the device of priority service of messages containing a group

input message storage blocks, address decoder, output message storage group, polling block, control block and feature register, the first group output of the polling block connected to the first input group of the last one in the group of the input message storage block connected to a group of inputs of the address decoder, the second group of inputs of each storage unit of input messages is connected to the corresponding (.) group of device inputs, the group of outputs of each block is stored output messages are connected to the corresponding group of device outputs, and the starting output of the control unit is connected to the polling control input, a group of input buffer registers are entered, a group of output buffer registers and a switch, the first groups of inputs of the input message storage blocks are connected to the first group of outputs of the block polling, the output group of each input message storage unit is connected to the information inputs of the corresponding input buffer register, the second output group of the polling unit with Connected with the first groups of inputs of the output message storage units, the outputs of each output buffer register are connected to the second group of inputs of the corresponding output message storage unit, the first and second outputs of the polling unit are connected to control inputs of the input and output buffer registers, respectively, the output of the input buffer registers are connected to information the switch inputs, the outputs of the input message storage blocks are connected to the first i group of control inputs of the switch, the outputs of the blocks are stored output messages are connected to the second group of control inputs of the switch, the group of address inputs of which is connected to the outputs of the address decoders, each output of the switch is connected to the information input of the corresponding output buffer register, the enable output of the control unit is connected to the control input of the switch, the command output of the control unit is connected with the input of the register of signs, the outputs of which are connected to the information inputs of the polling unit.

The structural scheme of the proposed device is shown in the drawing.

The device for priority service of messages contains a group of blocks 1 for storing input messages, a decoder for address 2, a group of input buffer registers 3, a switch 4, a group of output buffer registers 5, a group of blocks 6 for storing output messages, a control unit 7, a polling unit 8, a register 9 of signs , group 1 of the device inputs, group 11 of the device outputs. The control unit has a command output 12, which triggers output 13, enables output 14, the switch has first 15 and second 16 groups of control inputs, address inputs 17, information inputs 18, control input 19, the polling unit has first 20 and second 21 output groups , the first 22 and second 23 outputs, control input 24, information inputs 25, the input message storage unit has the first 26 and second 27. input groups, the first 28 and second 29 output groups, the output message storage unit has the first 30 and second 31 groups of inputs. The control inputs of the buffer registers are indicated by reference numeral 32.

The device works as follows.

The received message is stored in blocks 1, with the first (address) block indicating the priority of the message, the address of the recipient, and other service attributes. Priority maintenance begins with a polling of the urgency category recorded in the address block, simultaneously for all blocks 1, for which control information 7 is sent from the control unit 7 to the polling unit 8 and the register of signs 9, which starts the survey with the highest urgency category and the recipient address simultaneously, the rest the outputs of the polling unit 8 are masked by the register of signs 9 and do not participate in the survey. When the urgency category signal set at outputs 2O by the polling unit 8 coincides with the urgency category of the address block recorded in block 1, the latter issues a signal to switch 4, as well as simultaneously; The recipient address of this address block is sent to address decoder 2, which issues a signal corresponding to this address, to one of the inputs 17 of the switch 4.

Claims (3)

1. USSR author's certificate number 479112, cl. Q 06 F 9/18, 1975; 2. USSR Author's Certificate No. 4О8308, cl. G 06 F 9/18, 1973. 3. USSR author's certificate number 446061, cl. Q 06 F 9/18, 1974 (prototype). 2B 25