SU514330A1 - Magnetic recording apparatus - Google Patents

Magnetic recording apparatus

Info

Publication number
SU514330A1
SU514330A1 SU2103839A SU2103839A SU514330A1 SU 514330 A1 SU514330 A1 SU 514330A1 SU 2103839 A SU2103839 A SU 2103839A SU 2103839 A SU2103839 A SU 2103839A SU 514330 A1 SU514330 A1 SU 514330A1
Authority
SU
USSR - Soviet Union
Prior art keywords
magnetic recording
recording apparatus
signal
block
magnetic
Prior art date
Application number
SU2103839A
Other languages
Russian (ru)
Inventor
Валентин Михайлович Казаков
Владислав Мефодьевич Лексин
Алексей Иванович Синицын
Людмила Петровна Фролова
Original Assignee
Предприятие П/Я А-3759
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-3759 filed Critical Предприятие П/Я А-3759
Priority to SU2103839A priority Critical patent/SU514330A1/en
Application granted granted Critical
Publication of SU514330A1 publication Critical patent/SU514330A1/en

Links

Description

Horo непосредственно с механизмом. На входе установлен преобразователь 3, общий дл  всех усилителей 4 записи и дорожек магнитной головки 5 записи. В свою очередь, магнитна  головка 6 воспроизведенн  пыполисп, с аналогичным количеством дорожек, и кажда  из них через последовательно соединенные усилитель воспроизведени  7, блок 8 дискретного изменени  коэффициента усилени , схему 9 автоматической регулировки усилени , блок согласовани  10 и формирователь 11 оказываетс  подключенной к выходной шнне 12. Входной сигнал поступает через шину 13. Блок привода 2 через переключатель 14 подключен к первому источнику питани  i5, а блок 8 через другие контакты этого переключател  подключен к источнику питани  16,  вл юп;емус  вторым источником дл  данной схемы. Запись и воспроизведеП е осуп1ествл ютс  при помопдн магнитной лепты 17.Horo directly with the mechanism. At the input there is a converter 3, common to all recording amplifiers 4 and tracks of magnetic recording head 5. In turn, the magnetic head 6 is reproduced with a similar number of tracks, and each of them through a serially connected playback amplifier 7, a discrete gain change unit 8, an automatic gain control circuit 9, a matching unit 10, and a driver 11. 12. The input signal is fed through the bus 13. The drive unit 2 through the switch 14 is connected to the first power source i5, and the block 8 through the other contacts of this switch is connected to the source in power 16, is juc; emus is the second source for this circuit. Recording and playback are not possible with the help of magnetic mite 17.

Сигнал, подлежащий записи, поступает через преобразователь 3 i;;i усилители 4 и затем на головку 5. В преобразов теле происходит получение из аналогового сигнала импульсного . Записанный таким образом сигнал воспроизводитс  обычным путе: -1 до момента попадани  сигнала па блок 8. В этом блоке коэффициент усилени  измен етс  обратно пропорционально изменению амплитуды воспроизводимого сигпала. Изменение коэффициента усилени  с учетом конкретной скорости движени  магнитной .лепты обеспечиваетс  коммутацией напр жени  от источника питани  16 на один из входов блока 8. В результате сигнал на выходе этого блока вне зависимости от скорости движени  магнитной ленты будет иметь посто нную среднюю величину . Использу  при этом схему автоматической регулировки усилени  9, можно нроизводпть работу на среднем, т. е. на линейном, участке характеристики этой схемы, что позвол ет иметь высокую достоверность записываемой и воспроизводимой информации при широком изменении скорости движени  магнитной ленты.The signal to be recorded enters through the transducer 3 i ;; i amplifiers 4 and then to the head 5. The transducer receives the pulse signal from the analog signal. The signal recorded in this way is reproduced in the usual way: -1 until the signal arrives at block 8. In this block, the gain is changed in inverse proportion to the change in the amplitude of the sigal being played. A change in the gain factor taking into account the specific velocity of the magnetic loop is provided by switching the voltage from the power source 16 to one of the inputs of block 8. As a result, the output signal of this block, regardless of the speed of the magnetic tape, will have a constant average value. Using the automatic gain control circuit 9, it is possible to produce work on the average, i.e., on the linear, section of the characteristics of this circuit, which allows to have high reliability of the recorded and reproduced information with a wide change in the speed of the magnetic tape.

Claims (3)

1. Авт. св. СССР, № 369612, кл. G ПВ 5/00, 1970.1. Auth. St. USSR, № 369612, cl. G PV 5/00, 1970. 2.Патент США N° 3775759, кл. 340-174.1, 1973.2. US patent N ° 3775759, cl. 340-174.1, 1973. 3.Патент США №. 3662365, кл 340-174 1 1972.3. US patent no. 3662365 cl. 340-174 1 1972.
SU2103839A 1975-02-10 1975-02-10 Magnetic recording apparatus SU514330A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2103839A SU514330A1 (en) 1975-02-10 1975-02-10 Magnetic recording apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2103839A SU514330A1 (en) 1975-02-10 1975-02-10 Magnetic recording apparatus

Publications (1)

Publication Number Publication Date
SU514330A1 true SU514330A1 (en) 1976-05-15

Family

ID=20609670

Family Applications (1)

Application Number Title Priority Date Filing Date
SU2103839A SU514330A1 (en) 1975-02-10 1975-02-10 Magnetic recording apparatus

Country Status (1)

Country Link
SU (1) SU514330A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4897738A (en) * 1987-02-18 1990-01-30 Thorn Emi Datatech Limited Circuit for generating a frequency-modulated signal indicative of data to be recorded onto magnetic tape

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4897738A (en) * 1987-02-18 1990-01-30 Thorn Emi Datatech Limited Circuit for generating a frequency-modulated signal indicative of data to be recorded onto magnetic tape

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