SU1288682A2 - Information input device - Google Patents

Abstract

The invention relates to computing and can be used to process digital information recorded on magnetic tape or other media, and is an improvement to the device by authsv. No. 783783. The purpose of the invention is to expand the field of application of the device by providing the possibility of additional modes of operation. Elements of the fifth, sixth, seventh and eighth groups, elements of the fourth and fifth groups, the second element are NOT, the second element are OR, the third element are introduced into the device. The introduction of these elements makes it possible to organize two additional modes of operation. In the first of these modes, the number of words in the information frame received from the source of the message in the computing unit is set by the computing unit itself. In the second additional mode, the size of the information frame is fixed at the time of arrival of the clock signal from the source of the message. These modes of operation allow the processing of information that does not contain frame parameters, for example, from. ADC. 1 il. ABOUT)

Description

The invention relates to computing, can be used to process digital information recorded on magnetic tape or other media, and is an improvement to the device, according to author. No. 783783.

The purpose of the invention is to expand the field of application of the device by providing additional input modes for digital information in which it is divided into frames either from the computing unit by loading frame information into the buffer register, or from the source of messages by sending clock signals through a separate channel .

The drawing shows a functional diagram of the device.

The device contains a start and stop unit 1, the first 2 and second 3 counters, the first 4 and second 5 triggers, the message source 6, the input register 7, the first register 8, the first 9 and second 10 blocks of the buffer memory, the write control block 11, the first decoder 12, elements AND of the first group 13, elements OR of the first group 14, elements AND of the second group 15, elements OR of the second group 16, second comparison block 17, computing block 18, first comparison block 19, first AND 20 element, first HE element 21 , the second element And 22, the first element OR 23, block 24 control reading, the second oh decoder 25, elements AND the third 26 and fourth 27 groups, elements OR of the third group 28, second register 29, adder 30, third block 31 comparisons, elements of the 3rd 3-2 and sixth 33 groups, elements OR of the fourth group FOR, second element OR 35,

counters 2

and 3 and triggers 4 and 5 are reset to the initial state O. Counter 2 forms the address of the record, and counter 3 forms the information read.

5 The signal from block 1 to the source 6 of the message starts the source. The information and source is fed to the input register 7, in which each word stores 10 seconds for the time it is written in one of the buffer blocks 9 or 10 of memory. Service information about the number of words in the frame comes from the source through open elements AND 32 and elements

(5 OR 34 and is stored in the first register 8. After the information word is recorded in the input register 7 in the recording control unit 11, a write enable pulse is sent from the message source 6 to the control input of the first decoder 12 for which the signal from the trigger output 4. In this case, a pulse is formed at one of the outputs of the decoder 12.

When writing to the buffer memory block 9, this pulse opens a group of 13 elements AND, through which the write address from the output of counter 2 enters

30 through a group of 14 elements OR to the address inputs of the block. Similarly, when writing to block 10, a pulse from the second output of decoder 12 opens with a group of 15 elements AND, and the address of recording 35 from the output of counter 2 passes through elements 15 and elements OR 16 to the address inputs of block 10. After the information word is written to the display m counter 2 is added 1,

40, and thus the address of the next word record is prepared.

When writing the last word of the frame, at the output of the comparison block 17 a pulse is generated that passes

20

25

elements of the IL of the first group 36, element 45 through the element OR 35, translate the triggers AND the seventh 37 and eighth 38 groups, ger 4 to the state providing the second element NOT 39 and the third element in memory block 10, the counter 2 cop and 40. with this set to

The device operates as follows, which corresponds to the initial adraz. ., 50 resu.

Before entering the information in the main mode, the second control output of the computing unit 18 is input to the inputs of the groups 32 and 37 elements AND a mode setting signal is issued, allowing information to pass through these elements I. The signal from the start and stop unit 1 at this time

288682

counters 2

and 3 and triggers 4 and 5 are reset to the initial state O. Counter 2 forms the address of the record, and counter 3 forms the information read.

5 The signal from block 1 to the source 6 of the message starts the source. The information and source is fed to the input register 7, in which each word stores 10 seconds for the time it is written in one of the buffer blocks 9 or 10 of memory. Service information about the number of words in the frame comes from the source through open elements AND 32 and elements

(5 OR 34 and is stored in the first register 8. After the information word is recorded in the input register 7 in the recording control unit 11, a write enable pulse is sent from the message source 6 to the control input of the first decoder 12 for which the signal from the trigger output 4. In this case, a pulse is formed at one of the outputs of the decoder 12.

When writing to the buffer memory block 9, this pulse opens a group of 13 elements AND, through which the write address from the output of counter 2 enters

30 through a group of 14 elements OR to the address inputs of the block. Similarly, when writing to block 10, a pulse from the second output of decoder 12 opens with a group of 15 elements AND, and the address of recording 35 from the output of counter 2 passes through elements 15 and elements OR 16 to the address inputs of block 10. After the information word is written to the display m counter 2 is added 1,

40, and thus the address of the next word record is prepared.

When writing the last word of the frame, at the output of the comparison block 17 a pulse is generated that passes

20

25

Information is read from blocks 9 or 10 of memory by request pulses from the first control output of the computational block 18. Two cases are possible. In the first case, the reading is carried out from the memory block to which a record is written in this cycle, in the second case

1 time

reading and writing are done in data blocks.

In the first case, the request pulses pass through the AND 20 and OR 23 elements to the input of the read control block 24, in which a read resolution pulse is generated, which arrives at the control input of the decoder 25. Depending on which memory block is to be produced reading, at one of the outputs of the decoder, a pulse 25 is formed. The output of counter 3 is connected to the address inputs of the memory blocks either through groups of elements AND 26, OR 14, or through groups of elements-AND 27, Or 16. After reading the information word to prepare the reading address, the next word to counter 3 is added 1. The read information passes through the group of elements OR 28 to the information inputs of the computing unit 18 and to the inputs of the register 29 through the open elements AND 37 and the elements OR 36. In the register, the service information about the number of words in the information frame is stored. In this case, reading from the memory block can be performed only if the readings of counter 2 are greater than those of counter 3, i.e. if the block contains information no less than read. The counter readings are compared using the adder 30, to the input of which the contents of counter 3 are supplied in the forward run, and the contents of counter 2 in the supplementary one. In this case, if the reading of the counter 3 is less, then the transfer at the output of the adder is absent and the input of the element 20 receives a signal

cash, allowing the passage of the read request pulses.

45 writing to another memory block (for example, block 10). At the same time, the same signal goes to the first control input of block 18, signaling the end of writing to the memory block that

In the second case, the read request pulses pass through the element AND 22 and: the element OR 23, regardless of the readings of counters 2 and 3. Reading from one memory block can be ahead of -50 indicates that it is possible to start writing to another block. After reading all of it. Before the end of the last word, a pulse is formed at the output of the comparison unit 19, according to which the counter 3 is set

In the state O, and the trigger 5, by changing55 of the stroke of the comparison block 17, its state is made, it prepares the reading of information in another block of information storage from another block of memory. Elements 20 and 22 are controlled by a signal from the output of the comparison unit 31.

No reading of the first frame reads information into block 18. After passing the first pulse from the front and simultaneously reading the accumulated information from the first memory block at a rate determined by the computed 886vS2 5 О 925, the inputs from the outputs of the triggers 4 and 5 are received, selection of memory blocks for recording and reading information.

The proposed additional mode of operation of the device is used in the case when information is recorded in one block and read into another block. This mode is set by feeding from the second control output of the computing block 18 a control signal, which, having passed through

element NOT 39, allows the passage of information through groups of elements

And 38, the element And 40 and the group of elements And 33. In this case, two private modes of operation of the device are possible. In the first private mode, the frame size is determined by the computing unit 18, loading the corresponding number into the register 8, in the second private mode the information is divided into. frames by sending clock signals from message source 6.

The device in the first private mode works as follows.

Before starting work, a number equal to the frame size is loaded from the information outputs of block 18 through AND 33 elements and OR 34 elements into register 8, the state of which does not change until the end of the input. After writing a specified number of words to one of the buffer memory blocks (for example,

block 9) the signal from the output of the comparator block 17 goes through the OR element 35 to one of the inputs of the group 38 of the elements AND, allowing the recording of the contents of counter 2, in which the number is stored,

equal to the number of words in the frame, in

register 29 through AND 38 elements and OR elements 36. Then the same signal resets to Counter 2 and switches trigger 4, preparing the record to another memory block (for example, block 10). At the same time, the same signal arrives at the first control unit. the input of block 18, indicating the end of the write to the memory block, which

indicates the possibility of starting from him reading information. Until the end

indicates the possibility of starting from him reading information. Until the end

Neither the first frame records the reading of information in block 18. After passing the first pulse from the output of the comparator block 17, information is recorded in another memory block.

and simultaneously read the accumulated information from the first memory block at a rate determined by the computation of 5128

After completion of the reading, the signal from the output of the comparison unit 19 resets the counter 3 to 0, switches the trigger 5, and also goes through the element 40 to the second control input of the unit 18, signaling the end of the reading. Thereafter, the computing unit 18, before the arrival of the signal from the output of the comparator unit 17, may perform the processing of the entered information. Other units and nodes of the device work in the same way as in the main mode.

When operating in the second private mode, first from the computational block 18 through the element: AND 33 and OR 34 load the maximum possible number into register 8. Information is recorded in one of the memory blocks before the arrival of the sync signal from the control output of source 6 of the message to the OR circuit 35. After that, information is recorded in another memory block and the information accumulated in the first block starts. In such a device operation cycle, the number equal to the number recorded in the memory is loaded from counter 2 to register 29 through AND 38 and OR 36 elements. In general, the number of words in a frame may vary depending on the period of the sync signals coming from the source nickname 6 messages

The maximum period of the sync signals must be such that the buffer memory unit does not overflow. At the same time, signals from the output of the comparison unit 17 are absent, since in the register 8 the maximum possible number is stored.

Thus, the introduction of modes of operation in which the frame size is either set by the computing unit or fixed at the time of arrival of the clock signal from the source of the message allows a significant expansion of the range of subscribers served.

Claims (1)

Invention Formula Device for entering information on the author, sv. No. 783783, characterized in that, in order to expand the field of application of the device 55 5 0 5 0 50 five 0 five by providing the possibility of additional modes of operation, the device Contains elements of the Fifth, dough, seventh and eighth groups, elements OR of the fourth and fifth groups, the second element is NOT, the third element is AND, the second element is OR, the output of which is connected to the second input of the first trigger the reset input of the first counter, the first control input of the computing unit and the inputs of the first group of elements AND the eighth group, the outputs of which are connected to the inputs of the second group of elements OR the fifth group, the outputs of which are connected to the inputs of the second p the gistra, the second control input of the computing unit is connected to the inputs of the first group of elements AND the seventh group, the input of the second element NOT and the inputs of the first group of elements AND the fifth group whose outputs are connected to the inputs of the second group of elements OR the fourth group whose outputs are connected to the inputs of the first register, the output of the second element is NOT connected to the inputs of the third group of elements AND the eighth group, the first input of the third element AND and the inputs of the second group of elements AND the sixth group whose outputs are connected to the inputs of the fourth group OR elements, the inputs of the second group of elements AND the fifth group are combined with the inputs, the input register, the information outputs of the computing unit are connected to the inputs of the first group of elements AND the sixth group, the control output of the message source is connected To the first input of which the output of the second comparison unit is connected, the inputs of the second group of elements And the seventh group are combined with the information inputs of the computing unit, the outputs of the elements And the seventh group are connected with the inputs of the first group, the elements OR of that group, the inputs of the second group AND elements of the eighth group are connected to the first counter of the second counter, the output of the first comparison unit is connected to the second input of the third element, And the third element AND is connected to foot block. Editor Oh, Golovach Compiled by V. Fayzrakhmanov Tehred V.KadarKorrektor V.But Ha Order 7809/7 Circulation 694 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, i. Uzhgorod, st. Project, 4