SU542236A1 - Device for measuring dynamic tape skew - Google Patents

Device for measuring dynamic tape skew

Info

Publication number
SU542236A1
SU542236A1 SU2167709A SU2167709A SU542236A1 SU 542236 A1 SU542236 A1 SU 542236A1 SU 2167709 A SU2167709 A SU 2167709A SU 2167709 A SU2167709 A SU 2167709A SU 542236 A1 SU542236 A1 SU 542236A1
Authority
SU
USSR - Soviet Union
Prior art keywords
measuring dynamic
tape skew
dynamic tape
frequency detector
driver
Prior art date
Application number
SU2167709A
Other languages
Russian (ru)
Inventor
Евгений Александрович Ковальчук
Original Assignee
Предприятие П/Я А-3103
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я А-3103 filed Critical Предприятие П/Я А-3103
Priority to SU2167709A priority Critical patent/SU542236A1/en
Application granted granted Critical
Publication of SU542236A1 publication Critical patent/SU542236A1/en

Links

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Description

(54) УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ДИНАМИЧЕСКОГО ПЕРЕКОСА МАГНИТНОЙ ЛЕНТЫ(54) DEVICE FOR MEASURING DYNAMIC MAGNETIC TAPE SURVE

производ тс  посредством магнитных головок 3 и 4, св занных с усилител ми 5 и 6, К усилителю 5 подключены последовательно соединенные полосовой фильтр 7, формирователь 8, частотный детектор 9 и схема вычитани  1О. Ко второму входу этой схемы.подключены последовательно соединенные полосовой фильтр 11, формирователь 12 и частотный детектор 13. Аналогично к усилителю 6 подключены по с- ледовательно соединенные полосовой фильтр 14, формирователь 15, частотный детектор 16 и схема вычитани  17. Ко второму входу этой схемы подключены последовательно соединенные полосовой фильтр 18, формирователь 19 и частотный детектор 2О. Схемы вычитани  1О и 17 подключены к третьей схеме вычитани  21, котора  нагружена на блок регистрации и индикации 22.produced by magnetic heads 3 and 4 connected to amplifiers 5 and 6; serially connected to the amplifier 5 are a band-pass filter 7, a driver 8, a frequency detector 9 and a subtractor circuit 1O. Connected to the second input of this circuit. Are connected in series the band-pass filter 11, the driver 12 and the frequency detector 13. Similarly, the amplifier 6 is connected to the band-pass filter 14, the frequency detector 16 and the subtraction circuit 17. connected in series are the bandpass filter 18, the driver 19 and the frequency detector 2O. The subtraction circuits 1O and 17 are connected to the third subtraction circuit 21, which is loaded onto the recording and display unit 22.

Как видно из схемы, к каждому усилителю подключены два одинаковых канала .As can be seen from the diagram, two identical channels are connected to each amplifier.

Сигналы от обоих генераторов записывают на разные дорожки и с разными частотами . Перекос же приводит к тому, что на одной дорожке воспроизведение сигнала замедл етс , а на .цругой ускор етс . Обработав сигнал в каждом канале полосовым фильтром и формирователем, а также частотным детектором, его можно подать на схему вычитани . Тогда напр жени  на выходах схем Ю и 17 можно представить как сумму двух составл ющих, одна из которых несет информацию о динамических перекосах при записи, а друга  - при воспроизведении.Signals from both generators are recorded on different tracks and with different frequencies. A skewing effect leads to the fact that on one track the playback of the signal is slowed down, and on the other track it is accelerated. After processing the signal in each channel with a bandpass filter and a driver, as well as a frequency detector, it can be applied to the subtraction circuit. Then the voltages at the outputs of the circuits Yu and 17 can be represented as the sum of two components, one of which carries information about the dynamic distortions in the recording, and the other in reproduction.

Контроль за положением движущейс  магнитной ленты, особенно в тракте записи информации, позвол ет повысить достоверность воспроизводимой информации, что особенно важно при воспроизведении информации , записанной ранее на необслуживаемом объекте.Monitoring the position of a moving magnetic tape, especially in the information recording path, makes it possible to increase the reliability of reproducible information, which is especially important when reproducing information previously recorded on an unattended object.

Claims (3)

1.Авт.св. СССР №293170, кл. G 11 B7/O 29.03.69.1. Avt.Sv. USSR №293170, cl. G 11 B7 / O 03.29.69. 2.Авт.св. СССР №321842, кл. G11 В5/О 30.10.69.2. Avt.Sv. USSR №321842, cl. G11 B5 / O 30.10.69. 3.Авт.св. СССР№348853, кл. G11 В7/О 08.05.70.3. Avt.Sv. The USSR №348853, cl. G11 B7 / O 08.05.70.
SU2167709A 1975-08-25 1975-08-25 Device for measuring dynamic tape skew SU542236A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2167709A SU542236A1 (en) 1975-08-25 1975-08-25 Device for measuring dynamic tape skew

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2167709A SU542236A1 (en) 1975-08-25 1975-08-25 Device for measuring dynamic tape skew

Publications (1)

Publication Number Publication Date
SU542236A1 true SU542236A1 (en) 1977-01-05

Family

ID=20630259

Family Applications (1)

Application Number Title Priority Date Filing Date
SU2167709A SU542236A1 (en) 1975-08-25 1975-08-25 Device for measuring dynamic tape skew

Country Status (1)

Country Link
SU (1) SU542236A1 (en)

Similar Documents

Publication Publication Date Title
US4056832A (en) Servo system for controlling the position of a reading head
GB1497823A (en) Magnetic tape recording and reproduction
KR830009848A (en) Video tape recorder
US3070670A (en) Magnetic record head assembly
SU542236A1 (en) Device for measuring dynamic tape skew
US2685618A (en) Wide range magnetic recording system and method
US3182135A (en) Apparatus for checking imperfections in a recording medium
KR950009777B1 (en) Recording mode detecting circuit for vtr
SU528609A1 (en) Device for monitoring the phase shift between reproduced signals
KR900007016B1 (en) Tracking error ditecting circuit in r-dat
SU1272356A1 (en) Device for measuring skewness of magnetic medium
SU613398A1 (en) Magnetic tape skew measuring method
JPS5843809B2 (en) Data recording method
KR910004722Y1 (en) Audio head switching circuit for video cassette recorder
JPS57152571A (en) Discoidal recording medium reproducer
KR100215460B1 (en) Tracking error signal generating method and apparatus
SU851485A1 (en) Device for measuring magnetic record carrier movement speed variations
SU418890A1 (en) DEVICE FOR REPRODUCTION OF FREQUENCY-MODULATED SIGNALS
JPH05120765A (en) Tracking control circuit for magnetic recording and reproducing device
JPS5647936A (en) Cue signal recording and reproducing system
SU559270A1 (en) Tape recorder
SU605237A1 (en) Apparatus for reproducing analogue signals from magnetic tape
ES435653A1 (en) Information transmission system
SU606161A1 (en) Apparatus for magnetic recording-reproducing of mechanical oscillations of investigated objects
SU800609A1 (en) Method of measuring carrier skewness in magnetic recoring apparatus