ES310003A1 - A multiple magnetic head device for recording and reproducing one or more parallel recordings on a carrier. (Machine-translation by Google Translate, not legally binding) - Google Patents
A multiple magnetic head device for recording and reproducing one or more parallel recordings on a carrier. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES310003A1 ES310003A1 ES0310003A ES310003A ES310003A1 ES 310003 A1 ES310003 A1 ES 310003A1 ES 0310003 A ES0310003 A ES 0310003A ES 310003 A ES310003 A ES 310003A ES 310003 A1 ES310003 A1 ES 310003A1
- Authority
- ES
- Spain
- Prior art keywords
- circuit
- carrier
- air gap
- reproducing
- translation
- 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
- 230000005291 magnetic effect Effects 0.000 title abstract 5
- 239000000463 material Substances 0.000 abstract 4
- 230000005294 ferromagnetic effect Effects 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 239000003302 ferromagnetic material Substances 0.000 abstract 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
-
- 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
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
A multiple magnetic head device for recording and reproducing one or more parallel recordings on a carrier provided with magnetizable material, said head consisting of at least two interconnected magnetic circuits located one after the other, each circuit comprising at least two parts between which there is provided with a useful gap and which are made of oxidized, sintered ferromagnetic material and which limit the useful air gap, which air gap is filled with non-magnetizable material which, at the same time, fixes the two parts together, at least one plate of material being arranged ferromagnetic, oxidic, sintered, between the magnetic circuits that include the air gap, while between each circuit and the plate of ferromagnetic, oxidic, sintered material is arranged a plate of electrically conductive material, characterized in that in each magnetic circuit the air gap is placed asymmetrically co n with respect to the total length of the total circuit, seen in the direction of displacement of the carrier, while on one side of the set of plates placed between the circuits, a part of circuit of greater length is arranged and on the other side a part of Minor length circuit. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL646402126A NL145380B (en) | 1964-03-04 | 1964-03-04 | DOUBLE SLIT MAGNETIC HEAD. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES310003A1 true ES310003A1 (en) | 1965-06-01 |
Family
ID=19789461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0310003A Expired ES310003A1 (en) | 1964-03-04 | 1965-03-02 | A multiple magnetic head device for recording and reproducing one or more parallel recordings on a carrier. (Machine-translation by Google Translate, not legally binding) |
Country Status (11)
| Country | Link |
|---|---|
| AT (1) | AT251307B (en) |
| BE (1) | BE660457A (en) |
| CH (1) | CH417994A (en) |
| DE (1) | DE1474418A1 (en) |
| DK (1) | DK111964B (en) |
| ES (1) | ES310003A1 (en) |
| FR (1) | FR1428262A (en) |
| GB (1) | GB1065481A (en) |
| NL (1) | NL145380B (en) |
| NO (1) | NO115365B (en) |
| SE (1) | SE308739B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7054360B2 (en) | 2001-11-05 | 2006-05-30 | Cellonics Incorporated Pte, Ltd. | Method and apparatus for generating pulse width modulated waveforms |
-
1964
- 1964-03-04 NL NL646402126A patent/NL145380B/en unknown
-
1965
- 1965-02-27 DE DE1965N0026301 patent/DE1474418A1/en active Pending
- 1965-03-01 DK DK105265AA patent/DK111964B/en unknown
- 1965-03-01 CH CH278265A patent/CH417994A/en unknown
- 1965-03-01 GB GB8640/65A patent/GB1065481A/en not_active Expired
- 1965-03-01 BE BE660457A patent/BE660457A/xx unknown
- 1965-03-01 NO NO157001A patent/NO115365B/no unknown
- 1965-03-01 AT AT176665A patent/AT251307B/en active
- 1965-03-02 SE SE2710/65A patent/SE308739B/xx unknown
- 1965-03-02 ES ES0310003A patent/ES310003A1/en not_active Expired
- 1965-03-04 FR FR7911A patent/FR1428262A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL145380B (en) | 1975-03-17 |
| DE1474418A1 (en) | 1969-05-08 |
| BE660457A (en) | 1965-09-01 |
| DK111964B (en) | 1968-10-28 |
| SE308739B (en) | 1969-02-24 |
| GB1065481A (en) | 1967-04-19 |
| AT251307B (en) | 1966-12-27 |
| NL6402126A (en) | 1965-09-06 |
| FR1428262A (en) | 1966-02-11 |
| CH417994A (en) | 1966-07-31 |
| NO115365B (en) | 1968-09-23 |
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