IT1120822B - Apparecchio cancellatore di dati per nastri magnetici,in particolare nastri per computer - Google Patents
Apparecchio cancellatore di dati per nastri magnetici,in particolare nastri per computerInfo
- Publication number
- IT1120822B IT1120822B IT04812/79A IT481279A IT1120822B IT 1120822 B IT1120822 B IT 1120822B IT 04812/79 A IT04812/79 A IT 04812/79A IT 481279 A IT481279 A IT 481279A IT 1120822 B IT1120822 B IT 1120822B
- Authority
- IT
- Italy
- Prior art keywords
- tapes
- computers
- cancellation apparatus
- data cancellation
- magnetic
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
- G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
- G11B15/08—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape by photoelectric sensing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
-
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/024—Erasing
- G11B5/0245—Bulk erasing
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792926473 DE2926473C2 (de) | 1978-03-08 | 1979-06-30 | Datenlöschgerät für Magnetbänder, die am Bandanfang einen Kennsatz aufweisen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2809992A DE2809992C3 (de) | 1978-03-08 | 1978-03-08 | Datenlöschgerät für Magnetbänder, insbesondere Computerbänder |
Publications (2)
Publication Number | Publication Date |
---|---|
IT7904812A0 IT7904812A0 (it) | 1979-03-05 |
IT1120822B true IT1120822B (it) | 1986-03-26 |
Family
ID=6033871
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT04812/79A IT1120822B (it) | 1978-03-08 | 1979-03-05 | Apparecchio cancellatore di dati per nastri magnetici,in particolare nastri per computer |
Country Status (5)
Country | Link |
---|---|
US (1) | US4330800A (it) |
DE (1) | DE2809992C3 (it) |
FR (1) | FR2419558B1 (it) |
GB (1) | GB2016791B (it) |
IT (1) | IT1120822B (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3313175C2 (de) * | 1983-04-09 | 1986-07-03 | Algamatic Maschinen GmbH, 4050 Mönchengladbach | Datenlöschgerät für Magnetbänder |
US7284843B2 (en) * | 1997-07-15 | 2007-10-23 | Silverbrook Research Pty Ltd | Ink distribution assembly for an ink jet printhead |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH233606A (de) * | 1942-06-03 | 1944-08-15 | Licentia Gmbh | Verfahren zum Löschen einer magnetischen Aufzeichnung auf einem zu einer Spule gewickelten Aufzeichnungsträger. |
US2756278A (en) * | 1950-05-13 | 1956-07-24 | Rca Corp | Magnetic film erasing method and system |
US2848660A (en) * | 1952-06-05 | 1958-08-19 | Midwestern Instr Inc | Mass demagnetizing device for magnetic recording media |
US2826642A (en) * | 1952-10-02 | 1958-03-11 | Sound Seriber Corp | Eraser for magnetically recorded bulk tape in roll form |
FR1441742A (fr) * | 1965-04-30 | 1966-06-10 | Tolana S A | Effaceur de bandes magnétiques |
AT288867B (de) * | 1969-01-16 | 1971-03-25 | Eumig | Tonaufnahme- und -wierdergabegerät und abnehmbare Betätigungshandhabe hiefür |
DE2210769A1 (de) * | 1972-03-06 | 1973-09-13 | Elektron Werk Fuer Angewandte | Anordnung bei wiedergabe- und/oder aufnahmegeraeten mit bandfoermigen aufzeichnungstraegern, insbesondere magnetbaendern |
DE2424653B1 (de) * | 1974-05-21 | 1975-09-25 | Koerting Radio Werke Gmbh, 8211 Grassau | Elektronischer Laufrichtungssensor an Bandantrieben |
JPS52145818U (it) * | 1976-04-28 | 1977-11-05 | ||
DE2629894C2 (de) * | 1976-07-02 | 1978-08-03 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zum Löschen eines ganz oder teilweise mit Daten beschriebenen Magnetbandes |
-
1978
- 1978-03-08 DE DE2809992A patent/DE2809992C3/de not_active Expired
-
1979
- 1979-03-05 IT IT04812/79A patent/IT1120822B/it active
- 1979-03-07 FR FR7905852A patent/FR2419558B1/fr not_active Expired
- 1979-03-08 GB GB7908177A patent/GB2016791B/en not_active Expired
-
1980
- 1980-07-10 US US06/168,203 patent/US4330800A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2809992B2 (de) | 1980-09-18 |
GB2016791B (en) | 1982-07-07 |
IT7904812A0 (it) | 1979-03-05 |
US4330800A (en) | 1982-05-18 |
FR2419558B1 (fr) | 1987-06-26 |
FR2419558A1 (fr) | 1979-10-05 |
DE2809992C3 (de) | 1986-05-28 |
DE2809992A1 (de) | 1979-09-20 |
GB2016791A (en) | 1979-09-26 |
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