SU674243A1 - Device for magnetic recording and reproducing of television signals - Google Patents

Device for magnetic recording and reproducing of television signals

Info

Publication number
SU674243A1
SU674243A1 SU772550249A SU2550249A SU674243A1 SU 674243 A1 SU674243 A1 SU 674243A1 SU 772550249 A SU772550249 A SU 772550249A SU 2550249 A SU2550249 A SU 2550249A SU 674243 A1 SU674243 A1 SU 674243A1
Authority
SU
USSR - Soviet Union
Prior art keywords
magnetic recording
reproducing
television signals
magnetic
head
Prior art date
Application number
SU772550249A
Other languages
Russian (ru)
Inventor
Лев Николаевич Баланин
Original Assignee
Предприятие П/Я А-1705
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-1705 filed Critical Предприятие П/Я А-1705
Priority to SU772550249A priority Critical patent/SU674243A1/en
Application granted granted Critical
Publication of SU674243A1 publication Critical patent/SU674243A1/en

Links

Description

Изобретение относитс  к элементам телевизггонных систем. Устройство может использоватьс  дл  высококачественного электронного монхаШ видеозаписей. Известно устройство магнитной записи и воспроизведени  сигналов телевизионных изображений , содержащее частотный модул тор, последовательно соединенные усилитель записи, тойосъём нь1Й блок и магнитную видеоголовку, генератор тока стирани  и магнитную головку стирани  1 Однако в известном устройстве передача сигнала с генератора тока стирани  на магнитную) головку стирани  осуществл етс  независимо от передачи видеосигнала по отдельному каналу с помощью токосъемных блоков, что усложн ет устройство и увеличивает трудоемкости его Изготовлени . Целью изобретени   вл етс  упрощение устройства путем исключени  одного токосъемного блока. Дл  этого в устройстве магнитной записи и воспроизведени  сигналов телевизионн1.1Х изображений между частотным модул тором и усилителем записи введен сумматор, второй вход которого соед1-шен с генератором тока стирани , при этом магнитна  головка стирани  подключена к вШоду токосъемногоблока через введенный избирательный пассивный фильтр. На чертеже представлена структурна  электрическа  блок-схема предложенного устройства. Устройство магнитной записи и воспроизведени  сигналов телевизионных изображений содержит частотный модул тор 1, последовательно соединенные усилитель записи 2, токосъемный блок 3 и мапштную видеоголовку 4, генератор тока: стирани  5 и магнитную головку стирани  6,сумматор 7 и избирательньш пассивный фильтр 1 Входной видеосигнал поступает на вход частотного модрт тора 1, где он преобразуетс  в ЧМ сигнал. ЧМ сигнал проходит через сумматор 7,усиливаетс  в усилителе записи 2 и через токо- съёмный блок 3 поступает на вращающуюс  магнитную видеоголовку 4. При электронном монтаже включают генератор Тока стИрани  5, выходной сигнал которого линейно склад1 таетс  в сумматоре 7 с мо1тгируемым, подлежащим записи ЧМ сигналом; Суммарный сигнал усиливаетс  в ус1тителе записи 2 и через токосъемныйThis invention relates to elements of a television system. The device can be used for high quality electronic video recording. A device for magnetic recording and reproduction of television image signals is known, comprising a frequency modulator, a recording amplifier, a digital video recorder and a magnetic video head, an erase current generator and an erasing magnetic head 1, connected in series 1 carried out independently of video transmission over a separate channel using current collection blocks, which complicates the device and increases the complexity of its cooking. The aim of the invention is to simplify the device by eliminating one current collection unit. To do this, in the magnetic recording and reproducing signals of television1.1X images between the frequency modulator and recording amplifier, an adder is entered, the second input of which is connected to the erase current generator, while the magnetic erasing head is connected to the bore of the collector unit through the introduced selective passive filter. The drawing shows a structural electrical block diagram of the proposed device. A device for magnetic recording and reproduction of television image signals contains a frequency modulator 1, a recording amplifier 2 connected in series, a current collection block 3 and a video head 4, a current generator: erase 5 and a magnetic erase head 6, an adder 7 and a selective passive filter 1 The input video signal is fed to the input of the frequency mod torus 1, where it is converted to an FM signal. The FM signal passes through the adder 7, is amplified in the recording amplifier 2, and through the current-detachable unit 3 is fed to a rotating magnetic video head 4. With electronic editing, the Current SECTION 5 generator is turned on, the output of which is linearly stored in the adder 7 with the FM to be recorded signal; The sum signal is amplified in record recorder 2 and through current collector

блок 3 поступает на epaiaarouiyiocfl магнитную видеоголовку 4 и избирательный пассивный фильтр 8, установленный на вращающемс  лиске вместе с с магнитной головкой стирани  6.unit 3 enters the epaiaarouiyiocfl magnetic video head 4 and a selective passive filter 8 mounted on a rotating foil along with the erasing magnetic head 6.

Claims (1)

1. Патент США N 3542949, кл. , 1970.1. US patent N 3542949, cl. 1970
SU772550249A 1977-11-25 1977-11-25 Device for magnetic recording and reproducing of television signals SU674243A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772550249A SU674243A1 (en) 1977-11-25 1977-11-25 Device for magnetic recording and reproducing of television signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772550249A SU674243A1 (en) 1977-11-25 1977-11-25 Device for magnetic recording and reproducing of television signals

Publications (1)

Publication Number Publication Date
SU674243A1 true SU674243A1 (en) 1979-07-15

Family

ID=20735978

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772550249A SU674243A1 (en) 1977-11-25 1977-11-25 Device for magnetic recording and reproducing of television signals

Country Status (1)

Country Link
SU (1) SU674243A1 (en)

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