SU627522A1 - Apparatus for reproducing information from magnetic carrier - Google Patents
Apparatus for reproducing information from magnetic carrierInfo
- Publication number
- SU627522A1 SU627522A1 SU762331018A SU2331018A SU627522A1 SU 627522 A1 SU627522 A1 SU 627522A1 SU 762331018 A SU762331018 A SU 762331018A SU 2331018 A SU2331018 A SU 2331018A SU 627522 A1 SU627522 A1 SU 627522A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- input
- output
- switch
- counter
- signal
- Prior art date
Links
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Description
Изобретение относитс к автоматике и вычиспительной технике, предназначено дл использованн в системах запоминани и)}формации на магнитных носител х с компенсацией выпавшего сигнала.The invention relates to automation and computing technology, intended for use in memory systems and)} formations on magnetic carriers with compensation for the dropped out signal.
Известно устройство дл компенсации выпадений сигнала при воспроизведении информации с магнитного носител , пре- имуи ственно в видеозаписи Г, с элементом задержки в цепи обратной св зи. При выпадени х, отмечаемых детектором, это устройство воспроизводит сигнал, запомненный в элементе задержки, компенсиру таким образом выпавший осадок. Однако в цифровых системах при воспроизведении сигналов с измен ющимс периодом такое устройство не может работать достаточно точно и надежно.A device is known to compensate for the fallout of a signal when reproducing information from a magnetic medium, mainly in the video recording G, with a delay element in the feedback circuit. In the event of a fallout marked by the detector, this device reproduces the signal stored in the delay element, thus compensating the deposited precipitate. However, in digital systems, when reproducing signals with a varying period, such a device cannot work accurately enough and reliably.
Наиболее близко к npezuiaraeMOMy устройство дл воспроизведени информации с магнитного носител L2j, содержащее детектор сигнала, выходы которого подключены к первому и второму входам пере- ключател ,третий вход которого соединен с выходом первого счетчика, а выход - с Closest to npezuiaraeMOMy is a device for reproducing information from magnetic carrier L2j, containing a signal detector whose outputs are connected to the first and second inputs of the switch, the third input of which is connected to the output of the first counter, and the output from
выходом устройства, синхронизатор, один вход которого соединен с выходом генератора , а выход - с первым вхсдо второго счетчика и через блок задержки- с первым входом первого счетчика, причем выходы второго счетчика подключены ко вторым входам первого.the output of the device, the synchronizer, one input of which is connected to the generator output, and the output to the first input of the second counter and through the delay unit to the first input of the first counter, with the outputs of the second counter connected to the second inputs of the first.
Однако это усггройство не обладает достаточной точностью.However, this device does not have sufficient accuracy.
Цель изобретени - повышение точнооти работы устройства при воспроизведении сигналов с измен юшимс периодом.The purpose of the invention is to improve the accuracy of the device when playing signals with a variable period.
Описываемое устройство отличаетс тем, чтб вход синхронизатора соединен с выходом переключател , а третий и второй входы соответственно первого и второго счетчиков подключены к вьгходу генер тора При этом из цепи обратной св зв исключаетс нерегулируемый эпемент задержки , что позвол ет расширить диапазон рабочих частот схемы.The described device is different in that the synchronizer input is connected to the output of the switch, and the third and second inputs of the first and second counters are respectively connected to the generator input. In this case, an unregulated delay time is eliminated from the feedback circuit, which allows to expand the range of the circuit's operating frequencies.
На чертеже представлена структурна электрическа схема устройства.The drawing shows a structural electrical circuit of the device.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762331018A SU627522A1 (en) | 1976-03-05 | 1976-03-05 | Apparatus for reproducing information from magnetic carrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762331018A SU627522A1 (en) | 1976-03-05 | 1976-03-05 | Apparatus for reproducing information from magnetic carrier |
Publications (1)
Publication Number | Publication Date |
---|---|
SU627522A1 true SU627522A1 (en) | 1978-10-05 |
Family
ID=20651119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762331018A SU627522A1 (en) | 1976-03-05 | 1976-03-05 | Apparatus for reproducing information from magnetic carrier |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU627522A1 (en) |
-
1976
- 1976-03-05 SU SU762331018A patent/SU627522A1/en active
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