FR2135171A1 - Dispositif de lecture magneto-optique - Google Patents
Dispositif de lecture magneto-optiqueInfo
- Publication number
- FR2135171A1 FR2135171A1 FR7214241A FR7214241A FR2135171A1 FR 2135171 A1 FR2135171 A1 FR 2135171A1 FR 7214241 A FR7214241 A FR 7214241A FR 7214241 A FR7214241 A FR 7214241A FR 2135171 A1 FR2135171 A1 FR 2135171A1
- Authority
- FR
- France
- Prior art keywords
- magneto
- reading device
- optical reading
- optical
- reading
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13942271A | 1971-05-03 | 1971-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2135171A1 true FR2135171A1 (fr) | 1972-12-15 |
Family
ID=22486579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7214241A Withdrawn FR2135171A1 (fr) | 1971-05-03 | 1972-04-21 | Dispositif de lecture magneto-optique |
Country Status (3)
Country | Link |
---|---|
US (1) | US3705395A (fr) |
DE (1) | DE2221362A1 (fr) |
FR (1) | FR2135171A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4638470A (en) * | 1984-05-09 | 1987-01-20 | Xerox Corporation | Apparatus using beam splitter cube with specific characteristics for reading information recorded in a magneto-optic medium |
US5124634A (en) * | 1989-03-14 | 1992-06-23 | Square D Company | Ring optical current transducer |
-
1971
- 1971-05-03 US US139422A patent/US3705395A/en not_active Expired - Lifetime
-
1972
- 1972-04-21 FR FR7214241A patent/FR2135171A1/fr not_active Withdrawn
- 1972-05-02 DE DE19722221362 patent/DE2221362A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2221362A1 (de) | 1972-11-16 |
US3705395A (en) | 1972-12-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Withdrawal of published application |