HK6081A - A degaussing device for magnetic recording heads - Google Patents
A degaussing device for magnetic recording headsInfo
- Publication number
- HK6081A HK6081A HK6081A HK6081A HK6081A HK 6081 A HK6081 A HK 6081A HK 6081 A HK6081 A HK 6081A HK 6081 A HK6081 A HK 6081A HK 6081 A HK6081 A HK 6081A
- Authority
- HK
- Hong Kong
- Prior art keywords
- magnetic recording
- recording heads
- degaussing device
- degaussing
- heads
- Prior art date
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
- G11B5/465—Arrangements for demagnetisation of heads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
- H02M3/3382—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement in a push-pull circuit arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Dc-Dc Converters (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52024400A JPS6053550B2 (en) | 1977-03-08 | 1977-03-08 | capacitor charging circuit |
JP1977126101U JPS5740408Y2 (en) | 1977-09-21 | 1977-09-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
HK6081A true HK6081A (en) | 1981-03-06 |
Family
ID=26361905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK6081A HK6081A (en) | 1977-03-08 | 1981-02-26 | A degaussing device for magnetic recording heads |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2808835B2 (en) |
GB (1) | GB1565036A (en) |
HK (1) | HK6081A (en) |
MY (1) | MY8300003A (en) |
NL (1) | NL182590C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS615622Y2 (en) * | 1978-09-08 | 1986-02-20 | ||
DE3005927A1 (en) * | 1980-02-16 | 1981-09-03 | Erich Dr.-Ing. 5300 Bonn Steingroever | DEMAGNETIZING PROCEDURE |
US5837991A (en) * | 1996-03-08 | 1998-11-17 | Card Technology Corporation | Card transport mechanism and method of operation |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4135219A (en) | 1976-07-22 | 1979-01-16 | Tdk Electronics Co., Ltd. | Demagnetizer for a magnetic head of a recording-reproducing device |
-
1978
- 1978-03-01 DE DE19782808835 patent/DE2808835B2/en not_active Withdrawn
- 1978-03-07 GB GB890378A patent/GB1565036A/en not_active Expired
- 1978-03-08 NL NL7802559A patent/NL182590C/en not_active IP Right Cessation
-
1981
- 1981-02-26 HK HK6081A patent/HK6081A/en not_active IP Right Cessation
-
1983
- 1983-12-31 MY MY8300003A patent/MY8300003A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL182590B (en) | 1987-11-02 |
DE2808835A1 (en) | 1978-09-14 |
NL7802559A (en) | 1978-09-12 |
NL182590C (en) | 1988-04-05 |
DE2808835B2 (en) | 1979-08-02 |
GB1565036A (en) | 1980-04-16 |
MY8300003A (en) | 1983-12-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE | Patent expired |