CH554582A - PROCESS AND DEVICE FOR OPTICAL STORAGE AND READOUT OF BINARY INFORMATION. - Google Patents

PROCESS AND DEVICE FOR OPTICAL STORAGE AND READOUT OF BINARY INFORMATION.

Info

Publication number: CH554582A
Authority: CH; Switzerland
Prior art keywords: readout; optical storage; binary information; binary; information
Prior art date: 1973-03-30

Application number

CH459073A

Other languages

German (de)

Original Assignee

Ibm

Priority date (The priority date 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 date listed.)

1973-03-30

Filing date

1973-03-30

Publication date

1974-09-30

1973-03-30 Application filed by Ibm filed Critical Ibm

1973-03-30 Priority to CH459073A priority Critical patent/CH554582A/en

1974-02-13 Priority to FR7405844A priority patent/FR2223785B1/fr

1974-02-20 Priority to DE19742408010 priority patent/DE2408010A1/en

1974-03-20 Priority to JP49031109A priority patent/JPS49131041A/ja

1974-03-21 Priority to GB12735/74A priority patent/GB1486271A/en

1974-09-30 Publication of CH554582A publication Critical patent/CH554582A/en

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
- G11B7/24085—Pits
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/005—Programmed access to indexed parts of tracks of operating discs, by guiding the disc
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- 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
- G11C13/048—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 other optical storage elements
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24302—Metals or metalloids
- G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B2007/24318—Non-metallic elements
- G11B2007/24324—Sulfur
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
- G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te

Landscapes

Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Chemical & Material Sciences (AREA)
Inorganic Chemistry (AREA)
Optical Recording Or Reproduction (AREA)

CH459073A 1973-03-30 1973-03-30 PROCESS AND DEVICE FOR OPTICAL STORAGE AND READOUT OF BINARY INFORMATION. CH554582A (en)

Priority Applications (5)

Application Number	Priority Date	Filing Date	Title
CH459073A CH554582A (en)	1973-03-30	1973-03-30	PROCESS AND DEVICE FOR OPTICAL STORAGE AND READOUT OF BINARY INFORMATION.
FR7405844A FR2223785B1 (en)	1973-03-30	1974-02-13
DE19742408010 DE2408010A1 (en)	1973-03-30	1974-02-20	DEVICE FOR OPTICAL STORAGE AND READING OF BINARY INFORMATION
JP49031109A JPS49131041A (en)	1973-03-30	1974-03-20
GB12735/74A GB1486271A (en)	1973-03-30	1974-03-21	Binary information storage

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH459073A CH554582A (en)	1973-03-30	1973-03-30	PROCESS AND DEVICE FOR OPTICAL STORAGE AND READOUT OF BINARY INFORMATION.

Publications (1)

Publication Number	Publication Date
CH554582A true CH554582A (en)	1974-09-30

Family

ID=4278925

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH459073A CH554582A (en)	1973-03-30	1973-03-30	PROCESS AND DEVICE FOR OPTICAL STORAGE AND READOUT OF BINARY INFORMATION.

Country Status (5)

Country	Link
JP (1)	JPS49131041A (en)
CH (1)	CH554582A (en)
DE (1)	DE2408010A1 (en)
FR (1)	FR2223785B1 (en)
GB (1)	GB1486271A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3118058A1 (en) *	1980-05-14	1982-03-11	RCA Corp., 10020 New York, N.Y.	RECORD CARRIER AND METHOD FOR WRITING AN INFORMATION TRACK AND DELETING AN INFORMATION STORED IN THE CARRIER
JPS5911551A (en) *	1982-07-12	1984-01-21	Toshiba Corp	Optical information storage medium
US4637008A (en) *	1984-04-12	1987-01-13	Ltv Aerospace And Defense	Optical erasable disk memory system utilizing duration modulated laser switching
JPS61110351A (en) *	1984-11-05	1986-05-28	Fuji Photo Film Co Ltd	Information recording method
EP0186911B1 (en) *	1984-12-28	1991-01-23	Kabushiki Kaisha Toshiba	Reversible memory system
US4774702A (en) *	1986-04-03	1988-09-27	Ltv Aerospace And Defense Company	Erasable optical memory employing a marmen alloy to effect phase-change erasing in a chalcogenide film
JPS6318541A (en) *	1986-07-11	1988-01-26	Hitachi Ltd	Electron beam recording and reproducing method and its apparatus

1973
- 1973-03-30 CH CH459073A patent/CH554582A/en not_active IP Right Cessation
1974
- 1974-02-13 FR FR7405844A patent/FR2223785B1/fr not_active Expired
- 1974-02-20 DE DE19742408010 patent/DE2408010A1/en active Pending
- 1974-03-20 JP JP49031109A patent/JPS49131041A/ja active Pending
- 1974-03-21 GB GB12735/74A patent/GB1486271A/en not_active Expired

Also Published As

Publication number	Publication date
FR2223785A1 (en)	1974-10-25
GB1486271A (en)	1977-09-21
FR2223785B1 (en)	1976-04-30
DE2408010A1 (en)	1974-10-24
JPS49131041A (en)	1974-12-16

Publication	Publication Date	Title
AT323820B (en)	1975-07-25	DEVICE FOR READING INFORMATION
AT351816B (en)	1979-08-10	DEVICE FOR OPTICAL READING
AT343733B (en)	1978-06-12	DEVICE FOR READING INFORMATION
YU122973A (en)	1980-06-30	Apparatus for reading a flat record carrier
AT345908B (en)	1978-10-10	DEVICE FOR READING INFORMATION
SE398790B (en)	1978-01-16	RECORD CARRIER
SE395784B (en)	1977-08-22	APPARATUS FOR OPTICAL READING OF A RECORD CARRIER
AT339969B (en)	1977-11-25	RECORDING CARRIER AND DEVICE FOR READING SUCH
AT330259B (en)	1976-06-25	DEVICE FOR READING INFORMATION
AT318245B (en)	1974-10-10	Process for stabilizing polymers
IT987462B (en)	1975-02-20	REPRODUCTION APPARATUS
CH554582A (en)	1974-09-30	PROCESS AND DEVICE FOR OPTICAL STORAGE AND READOUT OF BINARY INFORMATION.
SE394335B (en)	1977-06-20	DEVICE FOR READING DISC SHAPED RECORD CARRIER
SE410808B (en)	1979-11-05	RECORD CARRIER
SE409150B (en)	1979-07-30	APPARATUS FOR READING THE RECORD CARRIER INCLUDING CENTERING DEVICE
AT346095B (en)	1978-10-25	DEVICE FOR THE OPTICAL READING OF INFORMATION
SE395558B (en)	1977-08-15	DEVICE FOR READING DISC SHAPED RECORD CARRIER
AT338887B (en)	1977-09-26	DEVICE FOR READING INFORMATION
CH543968A (en)	1973-11-15	Device for recording characters
AT337213B (en)	1977-06-27	STORAGE AND CLAMPING DEVICE FOR ROUND TEMPLATES
ZA721589B (en)	1972-11-29	Reading apparatus for optically discernible characters
CH552196A (en)	1974-07-31	METHOD AND DEVICE FOR OPTICAL DIMENSIONING.
AR207340A1 (en)	1976-09-30	IMPROVED REGENERATION PROCESS AND APPARATUS
IT982754B (en)	1974-10-21	DEVICE FOR RECORDING IN SEQUENCE OF VARIOUS VARIETY VALUES
DK140613B (en)	1979-10-08	Chart carrier for tachographs for use in machine reading of charts.

Legal Events

Date	Code	Title	Description
1980-11-28	PL	Patent ceased