SU960932A1

SU960932A1 - Device for magnetic re-recording of digital data

Info

Publication number: SU960932A1
Application number: SU813251237A
Authority: SU
Inventors: Гагик Григорьевич Закоян; Константин Александрович Меликян; Акоп Погосович Саакян; Левон Маисович Татикян; Люся Самвеловна Хачатрян
Original assignee: Предприятие П/Я А-3037
Priority date: 1981-01-05
Filing date: 1981-01-05
Publication date: 1982-09-23

Description

Изобретение относится к области⁴магнитной записи, а именно к устройствам для магнитной перезаписи цифровой информации.The invention relates to the field ^{4 of} magnetic recording, namely, devices for magnetic rewriting of digital information.

Известно устройство для магнитной перезаписи цифровой информации, содержащее узел воспроизведения с Mai— ниткой ленты, выход которого подключен ко входу блока коррекции, соединенного выходом с информационным ;bxo-_jqдом мзла записи на магнитную ленТУ Г1 ].A device is known for magnetic rewriting of digital information, comprising a playback unit with Mai — a tape thread, the output of which is connected to the input of a correction unit connected to the information by the output; bxo- _jq house of the magnetic tape recorder G1].

Данное устройство имеет относительно простую конструкцию, однако не позволяет обеспечить достаточно высокую скорость магнитной перезаписи цифровой информации.This device has a relatively simple design, but does not allow for a sufficiently high speed of magnetic rewriting of digital information.

Известно также устройство для магнитной перезаписи цифровой информации, содержащее узел воспроизведения 20 с магнитной ленты, выход которого подключен к первому входу блока коррекции, соединенного выходом с инфор* мационным входом узла записи на Mai— нитную ленту, и к первому входу синхронизатора, подключенного первым и вторым выходами к входам, соответственно, счетчика адреса записи и · счетчика адреса считывания и подсоединенного третьим выходом к первому входу блока выбора адреса, к первому входу блока оперативной 'памяти и к первому входу блока управления, второй вход которого соединен с первым выходом пульта управления, первый выход с управляющим входом узла воспроизведения с магнитной ленты, а второй выход -сс управляющим входом узла записи на магнитную ленту, блок контроля, блок сравнения и блок совпадения. Устройство позволяет обеспечить относительно высокую скорость магнитной перезаписи цифровой информации Г27.A device for magnetic rewriting of digital information is also known, comprising a playback unit 20 from a magnetic tape, the output of which is connected to the first input of the correction unit, connected by the output to the information input of the recording unit on the Mai-tape, and to the first input of the synchronizer connected to the first and the second outputs to the inputs, respectively, of the counter of the write address and the counter of the read address and connected by the third output to the first input of the address selection unit, to the first input of the RAM block and to the first ode control unit, a second input coupled to a first output of the control unit, the first output node to the control input playback from the magnetic tape, and the second output node -ss control input of recording on a magnetic tape control unit, comparing unit and coincidence unit. The device allows for a relatively high speed of magnetic rewriting of digital information G27.

Недостаток известного устройства состоит в значительной погрешности магнитной перезаписи цифровой информации.A disadvantage of the known device is the significant error of the magnetic rewriting of digital information.

Цель изобретения - уменьшение погрешности магнитной перезаписи цифровой информации.The purpose of the invention is to reduce the error of magnetic rewriting of digital information.

Эта цель достигается тем, что в устройство для магнитной перезаписи 5 цифровой информации введены счетчик маркеров, выход которого подключен к первому входу блока совпадения, подсоединенного вторым входом к второму выходу пульта управления и со- ¹⁰единенного выходом с третьим входом блока управления, и блок опознавания, вход которого подсоединен к выходу блока коррекции, соединенному с вторым входом блока оперативной памяти ^,5и с входом блока контроля, подключенного первым выходом к четвертому входу блока управления и подсоединенного вторым выходом к второму входу блока коррекции, а выход узла записи 20 на магнитную ленту подключен к второму входу синхронизатора и к первому входу блока сравнения, соединенного выходом с пятым входом блока оперативной памяти, третий вход которого 25 соединен с выходом блока выбора адре-, са, подключенного вторым и третьим входами к .выходам соответственно счетчика адреса записи и счетчика адреса считывания, при этом выход 30 блока опознавания подключен к входу счетчика маркеров.This object is achieved in that the device for magnetic overwriting digital information 5 markers introduced counter, whose output is connected to the first input matching block connected to the second input of the second output of the control unit ¹⁰ and co-unity output to the third input of the control unit, and the identification block the input of which is connected to the output of the correction unit connected to the second input of the RAM unit ^{, 5} and to the input of the control unit connected by the first output to the fourth input of the control unit and connected w the second output to the second input of the correction unit, and the output of the recording unit 20 to the magnetic tape is connected to the second input of the synchronizer and to the first input of the comparison unit, connected by the output to the fifth input of the random access memory block, the third input of which 25 is connected to the output of the address selection unit, ca connected by the second and third inputs to the outputs respectively of the write address counter and the read address counter, while the output 30 of the identification unit is connected to the input of the marker counter.

На чертеже показано предложенное устройство для магнитной перезаписи цифровой информации, вариант. ³⁵ The drawing shows the proposed device for magnetic rewriting of digital information, option. ³⁵

Устройство содержит узел 1 воспроизведения с магнитной ленты, выход которого подключен к первому входу блока 2 коррекции, соединенного выходом с информационным входом уз- ⁴⁰ла 3 записи на магнитную ленту, и к . первому входу синхронизатора 4. Послед* ний подключен первым и вторым выходами ко входам соответственно, счетчика 5 адреса записи и счетчика 6 ад-⁴⁵реса считывания и подсоединен третьим выходом к первому входу блока 7 выбора адреса, к первому входу блока 8 оперативной памяти и к первому входу блока 9 управления. Второй вход бло- 50 ка 9 управления соединен с первым выходом пульта 10 управления, первый выход - с управляющим входом узла 1 воспроизведения с магнитной ленты, а второй.выход - с управляющим входом . ⁵⁵узла 3 записи на магнитную ленту. Устройство содержит также счетчик 11 маркеров, выход· которого подключен к первому входу блока 12 совпадения, подсоединенного вторым входом ко второму выходу пульта 10 управления, и блок 13 опознавания. Вход блока 13 опознавания подсоединен к выходу блока 2 коррекции, соединенному со вторым входом блока 8 оперативной памяти и со входом блока 14 контроля. При этом блок 14 контроля подключен первым выходом к четвертому входу блока 9 управления и подсоединен вторым выходом ко второму входу блока 2 коррекции.The device comprises a reproduction unit 1 from magnetic tape, the output of which is connected to the first input of the correction unit 2, connected by the output to the information input of the recording unit ^{40 40} , and to. the first input of the synchronizer 4. The last * is connected by the first and second outputs to the inputs, respectively, of counter 5 of the write address and counter 6 of the address ^{45 of the} read address and is connected by the third output to the first input of block 7 of the address selection, to the first input of block 8 of RAM and to the first input of control unit 9. The second input of the control unit 9 is connected to the first output of the control panel 10, the first output is connected to the control input of the playback unit 1 from the magnetic tape, and the second output is connected to the control input. ⁵⁵ node 3 tape recordings. The device also contains a counter 11 markers, the output of which is connected to the first input of the matching unit 12, connected by the second input to the second output of the control panel 10, and a recognition unit 13. The input of the recognition unit 13 is connected to the output of the correction unit 2, connected to the second input of the RAM unit 8 and to the input of the control unit 14. In this case, the control unit 14 is connected by the first output to the fourth input of the control unit 9 and is connected by the second output to the second input of the correction unit 2.

В предложенном устройстве выход узла 3 записи на магнитную ленту подключен ко второму входу синхронизатора 4 и к первому входу блока 15 сравнения , соединенного выходом с пятым входом блока 9 управления и подсоединенного вторым входом к выходу блока 8 оперативной памяти. Третий вход блока 8 оперативной памяти соединен с выходом блока 5 выбора адреса, подключенного вторым и третьим входами к выходам, соответственно, счетчика 5 адреса записи и счетчика 6 адреса считывания, кроме того, выход блока 13 опознавания подключен ко входу счетчика 11 маркеров.In the proposed device, the output of the magnetic tape recording unit 3 is connected to the second input of the synchronizer 4 and to the first input of the comparison unit 15, connected by the output to the fifth input of the control unit 9 and connected by the second input to the output of the RAM unit 8. The third input of the RAM block 8 is connected to the output of the address selection block 5 connected by the second and third inputs to the outputs, respectively, of the write address counter 5 and the read address counter 6, in addition, the output of the recognition block 13 is connected to the input of the marker counter 11.

В предложенном устройстве каждая информационная строка поступает через синхронизатор 4 на блок 8 оперативной памяти, а через блок 2 коррекции - на блок 14 контроля и на узел 3 записи на магнитную ленту. Информация с выхода узла 3 записи на магнитную ленту поступает на синхронизатор 4 и на блок 15 сравнения, в котором происходит ее побитное сравнение с информацией, поступающей с выхода блока 8 оперативной памяти. В случае несоответствия.этих информаций происходит повторная магнитная перезапись, при которой блок 2 коррекции осуществляет коррекцию в соответствии с кодом, вырабатываемым блоком 14 контроля.In the proposed device, each information line enters through the synchronizer 4 to the RAM block 8, and through the correction block 2 to the control unit 14 and to the recording unit 3 on the magnetic tape. Information from the output of the recording unit 3 to the magnetic tape is supplied to the synchronizer 4 and to the comparison unit 15, in which it is bitwise compared with the information coming from the output of the RAM unit 8. In case of inconsistency of these information, a repeated magnetic rewriting takes place, in which the correction unit 2 carries out the correction in accordance with the code generated by the control unit 14.

Использование изобретения позволяет в значительной степени уменьшить погрешность магнитной перезаписи цифровой информации.The use of the invention can significantly reduce the error of magnetic rewriting of digital information.

Claims

The invention relates to the field of magnetic recording, in particular, to devices for magnetic rewriting of digital information. A device for magnetic rewriting of digital information is known, which contains a reproduction node with a Mai tape thread, the output of which is connected to the input of a correction unit connected to the information one and the input of the tape recording node g 1. This device has a relatively simple design, but does not allow for a sufficiently high speed of magnetic overwriting of digital information. It is also known a device for magnetic rewriting of digital information, containing a reproduction node from a magnetic tape, the output of which is connected to the first input of a correction unit connected by an output to an information input of the recording section to a main tape, and to the first input of the synchronizer connected by the first and second outputs to the inputs, respectively, of the write address counter and the read address counter and connected by the third output to the first input of the address selection block, to the first input of the random access memory and to the first input for the control unit, the second input of which is connected to the first output of the control panel, the first output with the control input of the playback unit from the magnetic tape, and the second output - with the control input of the recording unit on the magnetic tape, the control unit, Comparison stick and the match unit. The device allows for a relatively high speed of magnetic rewriting of digital information 27. A disadvantage of the known device is the considerable error of magnetic rewriting of digital information. The purpose of the invention is to reduce the error of magnetic rewriting of digital information. This goal is achieved by inserting a marker counter into the device for magnetic rewriting of digital information, the output of which is connected to the first input of the coincidence unit connected by the second input to the second output of the control panel and connected to the output of the third input of the control unit, and the identification unit thirdly connected to the output of the correction unit connected to the second input of the RAM and to the input of the control unit connected by the first output to the fourth input of the control unit and connected to the second output to the second input of the correction unit, and the output of the tape recorder is connected to the second input of the synchronizer and to the first input of the comparator connected to the fifth input of the main memory unit, the third input of which is connected to the address selector the second and third inputs to the outputs, respectively, of the write address counter and the read address counter, while the output of the identification unit is connected to the input of the marker count. The drawing shows the proposed device for magnetic rewriting of digital information, option. The device contains a playback unit 1 from a magnetic tape, the output of which is connected to the first input of the correction unit 2, connected by an output to the information input of the recording unit 3 to the magnetic tape, and to the first input of the synchronizer k. The message is connected by the first and second outputs to the inputs of the write address counter 5 and the read address counter 6, respectively, and the third output is connected to the first input of the address selection block 7, to the first input of the RAM block 8 and to the first input of the control block 9 . The second input of the control unit 9 is connected to the first output of the control panel 10, the first output is connected to the control input of the playback unit 1 from the magnetic tape, the second output; - with the control input of the unit 3 tape recording. The device also contains a token counter 1, the output of which is connected to the first input of the coincidence unit 12 connected by a second input to the second output of the control panel 10, and the identification unit 13. The input of the identification unit 13 is connected to the output of the correction unit 2, which is connected to the second input of the operational memory unit 8 and to the input of the control unit I. In this case, the control unit 14 is connected by the first output to the fourth input of the control unit 9 and connected by the second output to the second input of the correction unit 2. In the proposed device, the output of the tape recording unit 3 is connected to the second input of the synchronizer k and to the first input of the comparator unit 15 connected by the output to the fifth input of the control unit 9 and connected to the output of the main memory unit 8 by the second input. The third input of the operating memory unit 8 is connected to the output of the address selection unit 5 connected by the second and third inputs to the outputs, respectively, of the write address counter 5 and the read address counter 6, in addition, the output of the identification unit 13 is connected to the input of the counter 11 markers. In the proposed device, each informational station is fed through the synchronizer 4 to the operational memory block 8, and through the correction unit 2 to the control unit H and to the tape recorder unit 3. The information from the output of the recording unit 3 to the magnetic tape goes to the synchronizer and to the comparison unit 15, in which it is bit-by-bit compared with the information coming from the output of the random access memory 8. In the case of inconsistency of these information, a repeated magnetic re-recording takes place, in which the correction unit 2 performs the correction in accordance with the code generated by the control unit Ti. The use of the invention significantly reduces the accuracy of magnetic rewriting of digital information. Claims An apparatus for magnetic rewriting of digital information comprising a reproduction unit from a magnetic tape, the output of which is connected to the first one. output with the information input of the tape recorder and to the first input of the synchronizer connected by the first and second outputs to the inputs of the write address counter and the read address counter and the third output connected to the first input of the address selector. to the first input of the operating memory unit and to the first input of the control unit, the second input of which is connected to the first output of the control panel, the first output to the control input of the playback unit from the magnetic tape, and the second output to the control input node of the magnetic recording unit a tape, a control unit, a comparator unit and a coincidence unit, differing in that, in order to reduce the magnetic rewriting error, a marker counter is inserted in it, the output of which is connected to the first input of the coincidence unit connected by the second input to the second control panel output and connected to the third input of the control unit, and an identification unit whose input is under: connected to the second input of the RAM and to the input of the control unit connected to the fourth output of the control unit and the second output to the second input the correction unit, and the output of the tape recorder is connected to the second input of the synchronizer and to the first input of the comparator connected to the fifth input of the control unit and connected to the second input to the output of the operational memory unit, a third input coupled to an output of the select address, the connected second and third inputs respectively to the outputs of the write address counter and read address counter, wherein the discrimination unit output is connected to counter input tokens. Sources of information taken into account in the examination 1. Japan Patent V 50-38021, cl. 102 E 82.06.12.75.

2. Japanese Patent ff, cl. 102 E 81, 12/01/76 (protsztyp).