IT962344B - Memoria a massa ottica - Google Patents
Memoria a massa otticaInfo
- Publication number
- IT962344B IT962344B IT2651472A IT2651472A IT962344B IT 962344 B IT962344 B IT 962344B IT 2651472 A IT2651472 A IT 2651472A IT 2651472 A IT2651472 A IT 2651472A IT 962344 B IT962344 B IT 962344B
- Authority
- IT
- Italy
- Prior art keywords
- mass memory
- optical mass
- optical
- memory
- mass
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/06—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using magneto-optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
-
- 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
- G11B11/105—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 using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10502—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 using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
- G11B11/10515—Reproducing
-
- 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
- G11B11/105—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 using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/1055—Disposition or mounting of transducers relative to record carriers
- G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
-
- 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
- G11B11/105—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 using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10595—Control of operating function
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16291971A | 1971-07-15 | 1971-07-15 | |
US17615871A | 1971-08-30 | 1971-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT962344B true IT962344B (it) | 1973-12-20 |
Family
ID=26859158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2651472A IT962344B (it) | 1971-07-15 | 1972-07-01 | Memoria a massa ottica |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2233192A1 (it) |
FR (1) | FR2145721A1 (it) |
IT (1) | IT962344B (it) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58179904A (ja) * | 1982-04-15 | 1983-10-21 | Pioneer Electronic Corp | 情報記録方式 |
-
1972
- 1972-07-01 IT IT2651472A patent/IT962344B/it active
- 1972-07-06 DE DE19722233192 patent/DE2233192A1/de active Pending
- 1972-07-13 FR FR7225615A patent/FR2145721A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE2233192A1 (de) | 1973-01-25 |
FR2145721A1 (it) | 1973-02-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT968862B (it) | Dispositivo di memoria a copertura | |
BE787830A (fr) | Diffuseur | |
AT318032B (de) | Schallwandler | |
SE394036B (sv) | Optisk vagledarfiberanordning | |
IT961748B (it) | Trasduttore | |
BE801293A (fr) | Transducteur | |
AT319718B (de) | Kapodaster | |
IT973438B (it) | Alimentatore reversibile a vibrazioni | |
BR7200173D0 (pt) | Densidade otica | |
SE351286C (sv) | Piezoelektrisk gastendare | |
AR194731A1 (es) | Un dispositivo fotorreceptor | |
IT948582B (it) | Dispositivo di memoria | |
IT957226B (it) | Trasduttore elettrofluidico | |
SE382568B (sv) | Vibrationsanordning | |
IT962344B (it) | Memoria a massa ottica | |
IT993277B (it) | Limitatore ottico | |
CH540119A (de) | Trommelförmiger Schriftzeichenspeicher | |
AT318211B (de) | Verkleidungselement | |
IT959583B (it) | Dispositivo programmatore | |
BR7202421D0 (pt) | Transdutor eletracustico | |
AT322161B (de) | Fassadenverkleidung | |
BE791016A (fr) | Prisme | |
BE790387A (nl) | Elektro-magnetische vibrator | |
BR7202428D0 (pt) | Transdutor eletracustico | |
BR7209265D0 (pt) | Um transdutor de velocidade |