SU1265845A1

SU1265845A1 - Device for moving magnetic tape

Info

Publication number: SU1265845A1
Application number: SU853904513A
Authority: SU
Inventors: Вячеслав Иосифович Циунчик; Алексей Михайлович Жаврид; Виктор Иванович Сидоров; Владимир Иванович Чеховский
Original assignee: Предприятие П/Я М-5339
Priority date: 1985-06-04
Filing date: 1985-06-04
Publication date: 1986-10-23

Abstract

Изобретение относитс к области накоплени информации. Цель изобретени - уменьшение колебаний скорости перемещени магнитной ленты. Устройство содержит блоки 1 силовых ключей, формиров.атели 2 управл ющих сигналов, электродвигатели 3, катушки 4 с магнитной лентой. 5, блок 6 воспроизвод щих магнитйых головок, усилитель 7 синхросигналqB, блок 8 управлени скоростью перемещени :, формирователь 9 синхронизирующих импульсов , счетчики 10 и 11, блоки 12 и 13 сравнени , кварцевый генератор 14, блок 15 пам ти, входные шины 16 и 17, регистр 18 режима работы, мультиплексор 19, элементы И 20и 21, (Л to а СП 00 4 слThe invention relates to the field of information accumulation. The purpose of the invention is to reduce fluctuations in the speed of movement of a magnetic tape. The device contains blocks 1 of power switches, formers of 2 control signals, electric motors 3, coils 4 with magnetic tape. 5, reproducing magnetic head unit 6, sync signal amplifier 7B, movement speed control unit 8: synchronization pulse generator 9, counters 10 and 11, comparison blocks 12 and 13, crystal oscillator 14, memory block 15, input buses 16 and 17 , register 18 modes of operation, multiplexer 19, elements And 20 and 21, (L to and SP 00 4 cl

Description

элементы ИЛИ-НЕ 22 и 23, триггеры 24 и 25, регистры 26 и 27 сдвига, кольцевые сдвиговые регистры 28 и 29, элементы ИЛИ 30 и 31 и входные шины 32, 33, 35, 36, 37 и 38. Введение новых элементов и образование новых св зей между элементами устройстваOR-NOT elements 22 and 23, triggers 24 and 25, shift registers 26 and 27, annular shift registers 28 and 29, elements OR 30 and 31, and input buses 32, 33, 35, 36, 37 and 38. Introduction of new elements and the formation of new connections between the elements of the device

позвол ет достичь сочетани мгновенного приращени скорости перемещени магнитной ленты сразу же после получени знака ее отклонени от номинального значени с обеспечением более медленного повьщ1ени ее среднего значени . 1 ил.allows to achieve a combination of an instantaneous increment of the speed of movement of the magnetic tape immediately after obtaining the sign of its deviation from the nominal value with a slower increase in its average value. 1 il.

Изобретение относитс к области накоплени информации, а именно к устройствам дл перемещени магнитно ленты.The invention relates to the field of accumulation of information, namely, devices for moving magnetic tapes.

Целью изобретени вл етс уменьшение колебаний скорости перемещени магнитной ленты.The aim of the invention is to reduce fluctuations in the speed of movement of the magnetic tape.

На чертеже изображено предложенное устройство дл перемещени магнитной ленты, вариант.The drawing shows the proposed device for moving a magnetic tape, option.

Устройство содержит блоки 1 силовых ключей, подсоединенные входами к формирователю 2 управл ющих сигналов и подключенные выходами к электродвигател м 3, кинематически соединенным с катупжами 4, на которых раз мещена магнитна лента 5, сопр женна с блоком 6 воспроизвод щих магниных головок, соединенным со входом усилител 7 синхросигналов, блок 8 управлени скоростью перемещени , . формирователь 9 синхронизирующих импульсов , первый и второй счетчики tO и 11, первый и второй блоки 12 и 13 сравнени и кварцевый генератор 14.The device contains blocks 1 of power switches connected by inputs to driver 2 of control signals and connected by outputs to electric motors 3, kinematically connected to catupzhi 4, on which magnetic tape 5 is placed, coupled with block 6 of reproducing magnesium heads connected to input sync signal amplifier 7, movement speed control unit 8,. the synchronization pulse generator 9, the first and second counters tO and 11, the first and second blocks 12 and 13 of the comparison, and the crystal oscillator 14.

Устройство содержит также блок 15 пам ти, подсоединенный первым, вторым и третьим входами соответственно к первому выходу формировател 9 синхронизирующих импульсов и к первой и второй входным шинам 16 и 17, соединенным с первым и вторым входами формировател 2 управл ющих сигналов , регистр 18 режима работы, мультиплексор 19, первый и второй элементы И 20 и 21, йервый и второй элементы ИЛИ-НЕ 22 и 23, первый и второй триггеры 24 и 25, первый и второй регистры 26 и 27, первый и второй кольцевые сдвиговые регистры 28 и 29 и первый и второй элементы ШШ 30 и 31. Третий и четвертый входы формировател 2 управл ющих сигналов подсоединены к третьей и четвер , той входным тинам 32 и 33, соединенным соответственно с первым и вторым входами блока 8 управлени скоротью перемещени . Третий и четвертьйThe device also contains a memory block 15 connected by the first, second and third inputs respectively to the first output of the driver 9 of the clock pulses and to the first and second input buses 16 and 17 connected to the first and second inputs of the driver 2 of the control signals , multiplexer 19, first and second elements AND 20 and 21, the first and second elements OR NOT 22 and 23, first and second triggers 24 and 25, first and second registers 26 and 27, first and second ring shift registers 28 and 29 and the first and second elements of SHSh 30 and 31. Tert The second and fourth inputs of the driver control signal 2 are connected to the third and fourth, that input bushes 32 and 33, connected to the first and second inputs of the movement speed control unit 8, respectively. Third and quarter

5 входы блока 8 управлени скоростью перемещени подключены соответственно ко второму и третьему выходам формировател синхронизирующих импульсов , первый вход которого соеди10 иен с п той входной шиной 34. Регистр 18 режима работы подсоединен входом синхронизации и первым, вторым и третьим информационными входами соответственно к четвертому входу5 inputs of the movement speed control unit 8 are connected respectively to the second and third outputs of the clock generator, the first input of which is connected to the fifth input bus 34. Operating mode register 18 is connected by a synchronization input and the first, second and third information inputs respectively to the fourth input

15 формировател 9 синхронизирующих им:пульсов и к шестой, седьмой и восьмой входным шинам 35-37 и подключен ;четвертым и п тым информационными входами к первому и второму выходам15 generator 9 synchronizing them: pulses and to the sixth, seventh and eighth input buses 35-37 and connected; the fourth and fifth information inputs to the first and second outputs

20 ;блока 8 управлени скоростью перемещени , соединенным со вторым и третьим входами формировател 9 синхро низирующих импульсов и с п тым и шестым в содамн формировател 2 управл ющих сигналов. Выходы мультиплексора 19 подключены к седьмому и восьмому входам формировател 2 управл ющих сигналов. Первый и второй элементы И 20 и 21 соединены выходами со20; a movement speed control unit 8 connected to the second and third inputs of the driver 9 of the sync pulses and to the fifth and sixth in the soda generator of the driver 2 control signals. The outputs of the multiplexer 19 are connected to the seventh and eighth inputs of the driver 2 control signals. The first and second elements And 20 and 21 are connected by outputs with

30 входами синхронизации соответственно первого и второго счетчиков 10 и 11 и подсоединены первыми входами к вы|ходу кварцевого генератора 14, под ключенному к п тому входу блока 830 synchronization inputs of the first and second counters 10 and 11, respectively, and connected by the first inputs to the output of the quartz oscillator 14, connected to the fifth input of block 8

Claims

35 control the speed of movement. The first and second elements of the W-NOT 22 and 23 are connected by first inputs to the outputs of the first and second blocks 12 and 13, respectively, and connect the Q yen with the second inputs to the ninth input by the 38 bus connected to the sixth input of the block 8 controls the speed of movement and, to the fourth input of the driver, 9 clock pulses. The fifth driver input 9 clock pulses are connected to the output of the amplifier 7 sync signals. The synchronization inputs of the first and second triggers 24 and 25 are connected to the fifth output of the imaging unit 9 clock pulses connected to the installation inputs of the first and second counters 10 and 11 connected by the outputs to the inputs of the first and second blocks 12 and 13 respectively. The first and second registers 26 and 27 are connected by outputs to other inputs of the first and second blocks 12 and 13, respectively, of the comparison. The output of the crystal oscillator 14 is connected to the first inputs of the first and second ring shift registers 28 and 29, connected by the second inputs to the outputs of the nep and second elements OR 30 and 3, respectively, and connected by the first and second outputs to the inputs of the multiplexer 19 Other inputs of the multiplexer 19 are connected to the first input bus 16 ,. to the first and second inputs, m of the control unit 8 of the speed of movement and to the third, fourth and fifth input buses 32-34 connected to the sixth, seventh and eighth informational inputs of the mode register 18 to the inputs of the memory block 15. The outputs of the memory block 15 are connected to the information inputs of the first and second registers 26 and 27 connected by synchronization inputs to the fifth output form. a synchronizer of 9 pulses connected to the third inputs of the first and second ring shift registers 28 and 29. The third outputs of the first and second ring shift registers 28 and 29 are connected to the first inputs of the first and second SHSh 30 and 31 elements, respectively, connected by second inputs to the outputs the first and second triggers 24 and 25, respectively, connected to the second inputs of the first and second elements 20 and 21, respectively. The installation inputs of the first and second triggers 24 and 25 are connected to the outputs, respectively of the first and second OR-NO elements 22 and 23. Operation of the proposed device for moving the magnetic tape is as follows. 454 The signals received from the movement speed control unit 9 and the third, fourth, fifth, sixth, seventh and eighth input buses 3237, specify the mode code, which is entered into the operation mode register 18 by impulse from the imaging unit 8 synchronizing pulses. The signals of the operation mode register 18 are supplied to the memory unit 15, to which a signal of a given speed is received from the second input bus 17. The memory block 15, using a polling pulse, generates various eight-bit code words, which are entered into the first and second registers 26 and 27 upon receipt of a pulse from the imaging unit 9 synchronizing pulses. At the same time, the first and second flip-flops 24 and 25 are set to one state and the first and second counters 10 and 11 and the first and second ring shift registers 28 and 29 are set to zero at the same time. logical 1 with the first and second triggers 24 and 25 allow the passage of the signal of the crystal oscillator 14 through the first and second elements AND 20 and 21 on the first and second counters 10 and 11, and also affect through the first and second elements OR 30 and 31 on the first and second ring shift registers 28 and 29 into which single codes begin to be entered. The first and second counters 10 and 11 act respectively on the first and second blocks 12 and 13 of the comparison, which are also affected by the first and second registers 26 and 27, respectively. When the code of the first counter 10 and the first register 26 is equal, the first comparison block 12 generates a high level, which sets the first trigger 24 to the zero state through the first element WN-HE 22, ensuring that the units are not in the first ring shift register 28, Similarly, when the codes are equal the second counter 1 1 and the second register 27, the second comparison unit 13 generates a high level, which sets the second trigger 25 to the zero state through the second element OR-NOT 23, ensuring the termination of the entry of units in the second ring shift register 29. As a result of this, the first and second ring shift registers 28 and 29 form signals fed to multiplexer 19, on which are the first, second, third, fourth and fifth input layers 16, 17, 32, 33 and 34 receive operation mode signals. The multiplexer 19 through the odds (the control signal processor 2 acts on the power switch blocks 1, which generate currents through the electric motors 3. The electric motors 3 use the coils 4 to move the magnetic tape 5. At the same time, the block 6 of the reproducing magnetic heads reproduces from the magnetic tape 5 there is a control signal which is fed to the synchronization pulse generator 9 through the synchronization amplifier 7. The proposed device provides for the reduction of fluctuations in the speed of movement of the magnetic tape. This is achieved by combining an instantaneous increment of the speed of the magnetic tape immediately after receiving the sign of its deviation from the nominal value, ensuring a slower average value of the tape. Invention Apparatus for moving the magnetic tape containing blocks of power switches connected by means of world control signals, and the outputs - to the electric motors, kinematically connected to the coils on which the magnetic tape is placed is associated with the reproducing unit x magnetic heads connected to the input of the sync signal amplifier, movement speed control unit, the first pulse counter synchronizing pulse generator, the first comparator block of the crystal oscillator and input wiring, characterized in that, in order to reduce fluctuations in the magnetic tape moving speed, a second the counter, the second comparison unit, the memory unit connected to the first, second and third inputs, respectively, to the first output of the synchronizing pulse generator and to the first and second input rails, are connected m with the first and second inputs of the control signal generator connected with the third and fourth inputs to the third and fourth input buses connected to the D5, respectively, with the first and second inputs of the movement speed control unit connected with the third and fourth inputs to the second and third outputs of the core generator, respectively pulses, the first input of which is connected to the fifth input bus, the operation mode register connected by the sync input and the first, second and third information inputs respectively to the fourth output of the sync pulse generator and to the sixth, seventh and eighth input buses and the fourth and fifth information inputs to the first and second outputs of the movement speed control unit connected to the second and third inputs of the sync pulse generator and with the fifth and sixth inputs shaper control signals, a multiplexer connected by outputs to the seventh and eighth inputs of the shaper control signals, the first and second elements And connected to the outputs of the inputs b synchronization of the first and second counters respectively and connected by the first inputs to the output of the crystal oscillator connected to the fifth input of the movement speed control unit, the first and second elements OR NOT connected by the first inputs to the outputs of the first and second comparison blocks respectively and connected by the second inputs to nine the input bus connected to the sixth input of the speed control unit and to the fourth input of the synchronization pulse shaper connected by the fifth input to the output One of the clock amplifiers, the first and second triggers connected by the synchronization inputs1 and the fifth output of the synchro1-guiding pulse generator connected to the installation inputs of the first and second counters connected by the outputs to the inputs of the first and second comparison blocks, the first and second registers connected by the outputs with the other inputs, respectively, of the first and second blocks of the comparison, the first and second ring shift registers and the first and second elements OR, and the output of the crystal oscillator is connected to the first inputs of the first and second ring shift registers connected by the second inputs 712 to the outputs of the first and second OR elements, respectively, and connected by the first and second outputs of the multiplexer inputs, the other inputs of which are connected to the first input bus, the first and second movements of the movement speed control unit and R .the third, fourth and fifth input buses connected to the neck, seventh and eighth information inputs of the mode register connected by the outputs to the other inputs of the memory block, passages are connected to the data inputs of the first and second registers, podsoe5845g. . synchronization inputs to the fifth output of the synchronization pulse generator connected to (Third inputs of the first and second j ring shift registers connected to the third outputs with the first inputs of the first and second OR elements, respectively, the second inputs of which are connected to the outputs tO of the first and second respectively the second elements are And, and the installation inputs of the first and second triggers are connected to the bases of the first and second elements, respectively, of the gov 15 or OR - NOT.