SU590684A1 - Method of measuring crosstalk of multitrack magnetic recording - Google Patents
Method of measuring crosstalk of multitrack magnetic recordingInfo
- Publication number
- SU590684A1 SU590684A1 SU731918198A SU1918198A SU590684A1 SU 590684 A1 SU590684 A1 SU 590684A1 SU 731918198 A SU731918198 A SU 731918198A SU 1918198 A SU1918198 A SU 1918198A SU 590684 A1 SU590684 A1 SU 590684A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- recording
- magnetic recording
- tracks
- magnetic
- track
- Prior art date
Links
Landscapes
- Recording Or Reproducing By Magnetic Means (AREA)
Description
1one
Изобретение относитс к области измерительной техники, а именно - к способам измерени переходных помех многодорожечной магнитной записи.The invention relates to the field of measurement technology, namely, to methods for measuring crosstalk interference of a multi-track magnetic recording.
Известен способ измерени переходных помех многодорожечной магнитной записи путем записи контрольного сигнала на одной из дорожек и его воспроизведени магнитными головками, соответствующими разным дорожкам 1. Однако осуществление этого способа сопр жено со значительными трудност ми.There is a method for measuring transient noise of a multi-track magnetic recording by recording a pilot signal on one of the tracks and reproducing it with magnetic heads corresponding to different tracks 1. However, implementation of this method involves considerable difficulties.
Известен также способ измерени переходных помех многодорожечной магнитной записи путем воспроизведени одной из дорожек, на которых предварительно производ т синфазную запись контрольного сигнала 2. Этот способ достаточно прост, но характеризуетс значительной погрешностью результатов измерени .There is also known a method for measuring transient noise of a multi-track magnetic recording by reproducing one of the tracks on which the in-phase recording of the pilot signal 2 is made beforehand. This method is quite simple, but it is characterized by a significant error in the measurement results.
Цель изобретени - уменьшение погрешности измерени . Это достигаетс за -счет того, что после синфазной записи контрольного сигнала перед воспроизведением одной из дорожек записи производ т стирание последней переменным магнитным полем.The purpose of the invention is to reduce the measurement error. This is achieved due to the fact that after the in-phase recording of the control signal, before playing one of the recording tracks, the latter is erased by an alternating magnetic field.
Измерение согласно предлагаемому способу производ т следующим образом.Measurement according to the proposed method is performed as follows.
На дорожках магнитного носител посредством многодорожечного блока магнитных головок осуществл ют синфазную записьOn the tracks of a magnetic medium, a multi-track magnetic heads are used to perform in-phase recording.
контрольного сигнала. Переходные помехи многодорожечной магнитной записи определ ют по результату воспроизведени одной из дорожек с помощью соответствующей магнитной головки, причем после синфазной записи контрольного сигнала перед воспроизведением дорожки записи ее стирают высокочастотным переменным магнитным полем. Контрольный сигнал можно записывать как многодорожечиым блоком магнитных головок, используемым при воспроизведении, так и одной магнитной головкой, рабочий зазор которой перекрывает все дорожки. Предлагаемый способ прост и позвол ет вcontrol signal. Transient noise of a multi-track magnetic recording is determined by the result of playing one of the tracks using an appropriate magnetic head, and after the in-phase recording of the control signal before playing the recording track, it is erased with a high-frequency alternating magnetic field. The control signal can be recorded as a multi-unit block of magnetic heads used during playback, as well as with a single magnetic head, the working gap of which covers all the tracks. The proposed method is simple and allows
значительной степени уменьшить погрещность измерени переходных помех при воспроизведении многодорожечной магнитной записи.Significantly reduce the error in measuring crosstalk when reproducing multi-track magnetic recording.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU731918198A SU590684A1 (en) | 1973-05-11 | 1973-05-11 | Method of measuring crosstalk of multitrack magnetic recording |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU731918198A SU590684A1 (en) | 1973-05-11 | 1973-05-11 | Method of measuring crosstalk of multitrack magnetic recording |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU590684A1 true SU590684A1 (en) | 1978-01-30 |
Family
ID=20552542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU731918198A SU590684A1 (en) | 1973-05-11 | 1973-05-11 | Method of measuring crosstalk of multitrack magnetic recording |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU590684A1 (en) |
-
1973
- 1973-05-11 SU SU731918198A patent/SU590684A1/en active
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