NL7101356A - - Google Patents
Info
- Publication number
- NL7101356A NL7101356A NL7101356A NL7101356A NL7101356A NL 7101356 A NL7101356 A NL 7101356A NL 7101356 A NL7101356 A NL 7101356A NL 7101356 A NL7101356 A NL 7101356A NL 7101356 A NL7101356 A NL 7101356A
- Authority
- NL
- Netherlands
Links
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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/024—Erasing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/78—Television signal recording using magnetic recording
- H04N5/781—Television signal recording using magnetic recording on disks or drums
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Digital Magnetic Recording (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Management Or Editing Of Information On Record Carriers (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2332270A | 1970-03-27 | 1970-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7101356A true NL7101356A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1971-09-29 |
Family
ID=21814415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7101356A NL7101356A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1970-03-27 | 1971-02-02 |
Country Status (7)
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918089A (en) * | 1972-05-26 | 1975-11-04 | Ricoh Kk | Apparatus for erasing magnetic records of the spiral scanning type |
| JPS50134608A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1974-04-10 | 1975-10-24 | ||
| US4005482A (en) * | 1975-06-06 | 1977-01-25 | International Business Machines Corporation | Asymmetric erase across a rotary transformer to a rotating magnetic head |
| JPS52107201U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1976-02-10 | 1977-08-15 | ||
| JPS52170602U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1976-06-18 | 1977-12-24 | ||
| JPS5387221U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1976-12-20 | 1978-07-18 | ||
| JPS5451103U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1977-09-13 | 1979-04-09 | ||
| JPS5578501U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1978-11-28 | 1980-05-30 | ||
| US4581661A (en) * | 1982-12-15 | 1986-04-08 | Canon Kabushiki Kaisha | Erasing apparatus employing multiple magnetically premeable members |
| US4551782A (en) * | 1983-09-09 | 1985-11-05 | Rfl Industries, Inc. | Method and apparatus for degaussing magnetic storage media |
| DE3337845A1 (de) * | 1983-10-18 | 1985-04-25 | Nixdorf Computer Ag, 4790 Paderborn | Festplattenlaufwerk |
| US5214545A (en) * | 1983-11-02 | 1993-05-25 | Canon Kabushiki Kaisha | Signal erasing apparatus |
| JPS6098505A (ja) * | 1983-11-02 | 1985-06-01 | Canon Inc | 消去装置 |
| WO1985004277A1 (en) * | 1984-03-13 | 1985-09-26 | Olympus Optical Co., Ltd | Magnetic recording/reproducing apparatus |
| JPS6161203A (ja) * | 1984-09-03 | 1986-03-29 | Sharp Corp | 磁気記録再生装置 |
| US4714969A (en) * | 1985-09-16 | 1987-12-22 | Eastman Kodak Company | Method and apparatus for erasing a signal recorded on a magnetic disk |
| US4821127A (en) * | 1985-10-18 | 1989-04-11 | Fuji Photo Film Co., Ltd. | Demagnetizing apparatus for erasing signals recorded on concentric tracks |
| US4849832A (en) * | 1986-04-03 | 1989-07-18 | Canon Kabushiki Kaisha | Reproducing apparatus with erasing device and erasing function based on frequency multiplexed and/or DPSK coded signal |
| US4730230A (en) * | 1987-03-31 | 1988-03-08 | Dowty Rfl Industries, Inc. | Apparatus and method for degaussing magnetic storage media |
| US6052510A (en) | 1988-09-19 | 2000-04-18 | Canon Kabushiki Kaisha | Apparatus for recording, reproduction or erasing |
| US5235473A (en) * | 1990-04-13 | 1993-08-10 | Asahi Kogaku Kogyo Kabushiki Kaisha | Recording medium erasing device |
| KR20100114762A (ko) * | 2009-04-16 | 2010-10-26 | 삼성전자주식회사 | 하드디스크 드라이브의 서보 패턴 삭제방법 및 서보 패턴 삭제장치 |
| US9286916B1 (en) * | 2014-08-26 | 2016-03-15 | Seagate Technology Llc | High frequency data writer field generator device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH290942A (de) * | 1950-10-16 | 1953-05-31 | Treuunternehmen Promundo | Einrichtung zum Löschen von Aufzeichnungen auf magnetischen Tonträgern mit einer Mehrzahl unmittelbar nebeneinanderliegender Tonspuren. |
| US2962560A (en) * | 1955-05-09 | 1960-11-29 | Kenneth H Folse | Method of demagnetizing a magnetic record |
| US2846518A (en) * | 1955-10-05 | 1958-08-05 | Bell Telephone Labor Inc | Means for erasing a magnetic record |
| US3156784A (en) * | 1961-01-30 | 1964-11-10 | Ibm | Magnetic eraser |
-
1970
- 1970-03-27 US US00023322A patent/US3723668A/en not_active Expired - Lifetime
-
1971
- 1971-02-02 NL NL7101356A patent/NL7101356A/xx unknown
- 1971-03-08 BE BE763963A patent/BE763963R/xx active
- 1971-03-18 FR FR7109477A patent/FR2099057A5/fr not_active Expired
- 1971-03-23 DE DE2113878A patent/DE2113878C3/de not_active Expired
- 1971-03-27 JP JP46017841A patent/JPS511409B1/ja active Pending
- 1971-04-19 GB GB21351/71A patent/GB1293776A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2099057A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-03-10 |
| US3723668A (en) | 1973-03-27 |
| DE2113878A1 (de) | 1971-10-07 |
| JPS511409B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1976-01-17 |
| DE2113878B2 (de) | 1973-06-20 |
| BE763963R (fr) | 1971-08-02 |
| DE2113878C3 (de) | 1974-01-31 |
| GB1293776A (en) | 1972-10-25 |