DE822298C - Method for marking magnetic sound recordings - Google Patents
Method for marking magnetic sound recordingsInfo
- Publication number
- DE822298C DE822298C DEU248A DEU0000248A DE822298C DE 822298 C DE822298 C DE 822298C DE U248 A DEU248 A DE U248A DE U0000248 A DEU0000248 A DE U0000248A DE 822298 C DE822298 C DE 822298C
- Authority
- DE
- Germany
- Prior art keywords
- sound recordings
- magnetic sound
- marking
- marking magnetic
- mark
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title claims description 5
- 239000000126 substance Substances 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000000969 carrier Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
Verfahren zum Kennzeichnen von Magnettonaufzeichnungen Bei der regiemäßigen Bearbeitung, dem sog. Schneiden, von Tonbändern ist es häufig notwendig, irgendwelche Stellen der Tonaufzeichnung besonders zu kennzeichnen, z. B. deshalb, um diese Stellen leicht wiederfinden zu können. Eine solche Kennzeichnung wird bei Lichttonfilmen auf einfache Weise dadurch vorgenommen, daß mit Farbe oder mit einem Zeichenstift eine deutliche Markierung auf der Tonspur gemacht wird. Soll die Markierung wieder unsichtbar gemacht werden, so wird sie vorzugsweise auf der Schichtträgerseite vorgenommen, wo sie leicht wieder abgewischt werden kann. Die Marken oder Kennzeichen werden, da sie das Licht beim Abtasten schwächen, bei der Wiedergabe als kurzes Knacken hörbar.Method for marking magnetic sound recordings in the case of the director's Editing, the so-called cutting, of tapes is often necessary, some Particularly to mark places of the sound recording, z. B. therefore to these places easy to find again. Such a marking is used in optical sound films easily done by that with paint or with a drawing pen a clear mark is made on the soundtrack. Should the marking again are made invisible, it is preferably done on the substrate side, where it can easily be wiped off again. The brands or trademarks are since they weaken the light when scanning, as a short crack when playing back audible.
Bei Magnettonaufzeichnungen ist das beschriebene Verfahren nicht durchführbar, da die Marken beim Abtasten durch den Hörkopf nicht hörbar sind. Erfindungsgemäß wird eine Markierung bei Tonaufzeichnungen auf magnetisierbaren Bändern dadurch vorgenommen, daß an den betreffenden Stellen des Bandes ein magnetisch wirksamer Stoff aufgetragen wird. Dies geschieht beispielsweise durch Auftragen einer Lösung von magnetisch fein verteilten Stoffen, wie z. B. Eisenoxydpulver, in einem schnell trocknenden Bindemittel. Empfehlenswerter ist die Verwendung eines trockenen Verfahrens, beispielsweise in Form von Fettstiften mit fein verteilten magnetisierbaren Stoffen. Die Wirkung wird erhöht, wenn das aufzutragende Material, Lösung oder Fettstiftmasse, vor der Benutzung magnetisiert wird. Beim Abhören werden diese Marken beim Passieren des Hörkopfes ebenfalls als knackende Geräusche hörbar. Die Feldstärke der aufgetragenen Marken ist so klein, daß dieAufzeichnung selbst nicht beeinflußt wird. Nach Beseitigung der Marken kann die Aufzeichnung wieder ohne Störung abgehört werden.In the case of magnetic sound recordings, the procedure described cannot be carried out, as the marks cannot be heard when the headset is scanned. According to the invention becomes a mark in sound recordings on magnetizable tapes made that at the relevant points of the tape a magnetically effective Fabric is applied. This is done, for example, by applying a solution of magnetically finely divided substances, such as B. iron oxide powder, all in one quick drying binder. It is more advisable to use a dry process, for example in the form of grease pencils with finely distributed magnetizable substances. The effect is increased if the material, solution or grease stick compound to be applied, magnetized before use. When eavesdropping, these marks are when passing of the hearing head can also be heard as cracking noises. The field strength of the applied Mark is so small that the recording itself is not affected. To Elimination of the markers, the recording can be listened to again without any disturbance.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEU248A DE822298C (en) | 1950-05-14 | 1950-05-14 | Method for marking magnetic sound recordings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEU248A DE822298C (en) | 1950-05-14 | 1950-05-14 | Method for marking magnetic sound recordings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE822298C true DE822298C (en) | 1951-11-26 |
Family
ID=7564788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEU248A Expired DE822298C (en) | 1950-05-14 | 1950-05-14 | Method for marking magnetic sound recordings |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE822298C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1016457B (en) * | 1952-02-06 | 1957-09-26 | Deutsche Elektronik Gmbh | Method and device for inserting signals in magnetic sound recordings |
-
1950
- 1950-05-14 DE DEU248A patent/DE822298C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1016457B (en) * | 1952-02-06 | 1957-09-26 | Deutsche Elektronik Gmbh | Method and device for inserting signals in magnetic sound recordings |
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