SU940243A1 - Device for correcting for errors in magnetic stores - Google Patents
Device for correcting for errors in magnetic stores Download PDFInfo
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- SU940243A1 SU940243A1 SU803246726A SU3246726A SU940243A1 SU 940243 A1 SU940243 A1 SU 940243A1 SU 803246726 A SU803246726 A SU 803246726A SU 3246726 A SU3246726 A SU 3246726A SU 940243 A1 SU940243 A1 SU 940243A1
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- SU
- USSR - Soviet Union
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- correcting
- errors
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- magnetic
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- Error Detection And Correction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Description
1one
Изобретение относитс к запоминающим устройствам.This invention relates to memory devices.
Известно устройство дл исправлени ошибок в магнитных накопител х, содержащее буферный блок, кодеры с коррекцией ошибки, нелинейный кодер и .блок управлени Cl .A device for correcting errors in magnetic storage devices is known, comprising a buffer block, error-correcting encoders, a non-linear encoder, and a Cl control unit.
Недостатком этого устройства вл етс то, что во врем декодировани информации необходимо проводить дей- Q стви , обратные кодированию, а разнообразие схем кодеров и декодеров приводит к значительному усложнению в целом всего устройства, что ведет к снижению надежности.,5A disadvantage of this device is that during decoding information it is necessary to carry out Q-operations inverse to coding, and the variety of encoder and decoder circuits leads to considerable complication of the whole device as a whole, which leads to a decrease in reliability.
Наиболее близким к предлагаемому по технической сущности вл етс устройство дл исправлени ошибок в цифровых магнитных накопител х, содержащее пороговую схему,выход которой го соединен со входом элемента ИЛИ через первый элемент И, соединенный вторым входом с выходом схемы контрол четности строк, второй элемент И, первый вход которого соединен через элемент НЕ с выходом пороговой схемы, второй вход - с выходом демодул тора, а выход - со входом схемы контрол четности строк и вторым входом элемента ИЛИ 2.Closest to the proposed technical entity is a device for correcting errors in digital magnetic storage, containing a threshold circuit, the output of which is connected to the input of the OR element through the first AND element connected by the second input to the output of the evenness line the first input of which is connected through the element NOT to the output of the threshold circuit, the second input to the output of the demodulator, and the output to the input of the line parity check circuit and the second input of the OR 2 element.
Однако в магнитных, регистраторах, использующих метод узкополосной фазовой манипул ции, при наличии длительных выпаданий сигнала, считанного с магнитного носител , дальнейшее декодирование входной информации приводит к неверным результатам, поскольку интервал выпадени нарушает структуру входного кода. Правильное декодирование возможно только после прихода синхронизирующей комбинации входной ин(}юрмации. Это снижает надежность устройства.However, in magnetic recorders using the method of narrow-band phase manipulation, in the presence of long signal drops, read from magnetic media, further decoding of the input information leads to incorrect results, since the interval of deposition violates the structure of the input code. Proper decoding is possible only after the arrival of the synchronization combination of the input code (}), which reduces the reliability of the device.
Цель изобретени - повышение надежности устройства.The purpose of the invention is to increase the reliability of the device.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU803246726A SU940243A1 (en) | 1980-12-15 | 1980-12-15 | Device for correcting for errors in magnetic stores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU803246726A SU940243A1 (en) | 1980-12-15 | 1980-12-15 | Device for correcting for errors in magnetic stores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU940243A1 true SU940243A1 (en) | 1982-06-30 |
Family
ID=20942612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU803246726A SU940243A1 (en) | 1980-12-15 | 1980-12-15 | Device for correcting for errors in magnetic stores |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU940243A1 (en) |
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1980
- 1980-12-15 SU SU803246726A patent/SU940243A1/en active
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