SE7605648L - Minnesskiva for datalagring och dataatervinninga samt en anordning for skrivning och/eller lesning av data som er lagrad pa eller skall lagras pa minnesskivan - Google Patents
Minnesskiva for datalagring och dataatervinninga samt en anordning for skrivning och/eller lesning av data som er lagrad pa eller skall lagras pa minnesskivanInfo
- Publication number
- SE7605648L SE7605648L SE7605648A SE7605648A SE7605648L SE 7605648 L SE7605648 L SE 7605648L SE 7605648 A SE7605648 A SE 7605648A SE 7605648 A SE7605648 A SE 7605648A SE 7605648 L SE7605648 L SE 7605648L
- Authority
- SE
- Sweden
- Prior art keywords
- stored
- data
- memory disc
- writing
- data storage
- Prior art date
Links
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
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B7/0938—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals
-
- 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
- G11B7/14—Heads, e.g. forming of the optical beam spot or modulation of the optical beam specially adapted to record on, or to reproduce from, more than one track simultaneously
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
- G11B2220/215—Recordable discs
- G11B2220/218—Write-once discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
- G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
- G11B2220/2525—Magneto-optical [MO] discs
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Moving Of The Head To Find And Align With The Track (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752522593 DE2522593C2 (de) | 1975-05-22 | 1975-05-22 | Optisches System zum wahlfreien Speichern und Wiedergewinnen digitaler Daten |
DE19762608715 DE2608715C2 (de) | 1976-03-03 | 1976-03-03 | Optisches System zum Speichern und Wiedergewinnen digitaler Daten |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7605648L true SE7605648L (sv) | 1976-11-23 |
SE415305B SE415305B (sv) | 1980-09-22 |
Family
ID=25768928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7605648A SE415305B (sv) | 1975-05-22 | 1976-05-19 | Anleggning for lagring av datainformation |
Country Status (7)
Country | Link |
---|---|
US (1) | US4094013A (sv) |
JP (1) | JPS608530B2 (sv) |
CA (1) | CA1077620A (sv) |
FR (1) | FR2312087A1 (sv) |
GB (1) | GB1551327A (sv) |
IT (1) | IT1060627B (sv) |
SE (1) | SE415305B (sv) |
Families Citing this family (96)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2337472A1 (fr) * | 1975-12-29 | 1977-07-29 | Telediffusion Fse | Systeme de commande du positionnement de la tete d'un lecteur de disque et notamment de videodisque |
GB1577133A (en) * | 1976-03-19 | 1980-10-22 | Rca Corp | Video information record and playback apparatus |
FR2366636A1 (fr) * | 1976-10-01 | 1978-04-28 | Thomson Brandt | Dispositif d'enregistrement optique d'information sur un support avec asservissement de la position de la tache d'enregistrement sur le support d'information |
DE2710166C2 (de) * | 1977-03-09 | 1984-09-13 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Mechanisch adressierter optischer Speicher |
FR2396379A1 (fr) * | 1977-07-01 | 1979-01-26 | Thomson Brandt | Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations |
US4205338A (en) * | 1977-11-03 | 1980-05-27 | Laser File Inc. | Disc recording tracking system |
JPS5465503A (en) * | 1977-11-04 | 1979-05-26 | Hitachi Ltd | Information recorder-reproducer |
NL187413C (nl) * | 1978-03-16 | 1991-09-16 | Philips Nv | Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager. |
NL7810462A (nl) * | 1978-10-19 | 1980-04-22 | Philips Nv | Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare stralingsreflekterende informatiestruktuur |
NL7810463A (nl) * | 1978-10-19 | 1980-04-22 | Philips Nv | Registratiedrager waarin informatie is aangebracht in een optisch uitleesbare informatiestruktuur. |
CA1165871A (en) * | 1978-11-08 | 1984-04-17 | Kornelis Bulthuis | Optically inscribable record carrier |
JPS5936347B2 (ja) * | 1978-12-11 | 1984-09-03 | 日本ビクター株式会社 | 情報記録担体 |
US4290122A (en) * | 1979-05-14 | 1981-09-15 | Xerox Corporation | Self-synchronizing clock source for optical memories |
US4283777A (en) * | 1979-05-14 | 1981-08-11 | Xerox Corporation | Optical memory having a parallel read out |
US4296491A (en) * | 1979-07-30 | 1981-10-20 | Atlantic Richfield Company | Information carrier having inter-track identification code information |
US4330879A (en) * | 1979-10-18 | 1982-05-18 | Rca Corporation | Adaptive stylus kicker using disc track and disc sector information |
US4412319A (en) * | 1979-10-18 | 1983-10-25 | Rca Corporation | Video disc player with self calibrating stylus translator |
NL8000121A (nl) * | 1980-01-09 | 1981-08-03 | Philips Nv | Schijfvormige, optische uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen van datainformatie in zo'n registratiedrager en inrichting voor het uitlezen van zo'n registratiedrager. |
FR2474221A1 (fr) * | 1980-01-23 | 1981-07-24 | Thomson Csf | Dispositif optique d'enregistrement-lecture de supports d'information et systeme de memoire optique comportant un tel systeme |
US4408314A (en) * | 1980-02-29 | 1983-10-04 | Tokyo Shibaura Denki Kabushiki Kaisha | Record/playback track tracking servo |
CA1147858A (en) * | 1980-07-16 | 1983-06-07 | Discovision Associates | System for recording digital information in a pulse-length modulation format |
US5084852A (en) * | 1980-07-16 | 1992-01-28 | Discovision Associates | System for recording digital information in a pulse-length modulation format |
US5253244A (en) * | 1980-07-16 | 1993-10-12 | Discovision Associates | System for recording digital information in a pulse-length modulation format |
US5003526A (en) * | 1980-07-16 | 1991-03-26 | Discovision Associates | System for recording digital information in a pulse-length modulation format |
US5553047A (en) * | 1980-07-16 | 1996-09-03 | Discovision Associates | System for recording digital information in a pulse-length modulation format |
US5577015A (en) * | 1980-07-16 | 1996-11-19 | Discovision Associates | System for recording digital information in a pulse-length modulation |
US4386375A (en) * | 1980-09-24 | 1983-05-31 | Rca Corporation | Video disc player with multiple signal recovery transducers |
US4692913A (en) * | 1980-11-26 | 1987-09-08 | News Log International, Inc. | Method and apparatus for reading a data record carrier |
JPS57103132A (en) * | 1980-12-16 | 1982-06-26 | Matsushita Electric Ind Co Ltd | Recording information carrier and its recorder and reproducer |
US5119363A (en) * | 1980-12-17 | 1992-06-02 | Matsushita Electric Industrial Company, Ltd. | Optical disk having an index mark |
FR2504765A1 (fr) * | 1981-04-27 | 1982-10-29 | Thomson Csf | Dispositif d'enregistrement-lecture comprenant un support mobile d'informations du type comportant une piste pregravee |
FR2504713B1 (fr) * | 1981-04-27 | 1986-04-11 | Thomson Csf | Disque support d'information a codage angulaire et systeme d'entrainement en rotation d'un tel disque |
JPS5814332A (ja) * | 1981-07-16 | 1983-01-27 | Mitsubishi Electric Corp | 光学式情報再生装置 |
US4497050A (en) * | 1981-08-03 | 1985-01-29 | U.S. Philips Corporation | Method and device for writing a data block into a record carrier body |
FR2511537B1 (fr) * | 1981-08-14 | 1986-09-05 | Thomson Csf | Dispositif optique de suivi de piste a echantillonnage |
JPS5841447A (ja) * | 1981-09-04 | 1983-03-10 | Hitachi Ltd | 光スポット制御信号検出方法 |
US4443870A (en) * | 1981-10-15 | 1984-04-17 | Burroughs Corporation | Optical memory system providing track following |
NL8204555A (nl) * | 1981-11-25 | 1983-06-16 | Hitachi Ltd | Inrichting voor het registreren en weergeven van informatie. |
US4535439A (en) * | 1981-12-01 | 1985-08-13 | Matsushita Electric Industrial Co., Ltd. | Optical having index mark and sector mark |
JPS58100235A (ja) * | 1981-12-11 | 1983-06-14 | Victor Co Of Japan Ltd | 情報記録円盤及びその文字記録方式 |
US4428075A (en) * | 1981-12-21 | 1984-01-24 | Burroughs Corporation | Methods of preformatting an optical disk |
US4475132A (en) * | 1982-01-22 | 1984-10-02 | Rodesch Dale F | Interactive video disc systems |
FR2523347B1 (fr) * | 1982-03-12 | 1988-11-04 | Thomson Csf | Support d'information mobile pregrave et dispositif optique de suivi de piste mettant en oeuvre un tel support |
USRE32937E (en) * | 1982-03-19 | 1989-05-30 | Magnetic Peripherals, Inc. | Modulation system for optical recording |
US4456981A (en) * | 1982-03-19 | 1984-06-26 | Magnetic Peripherals Inc. | Modulation system for optical recording |
US4751692A (en) * | 1982-04-15 | 1988-06-14 | Discovision Associates | Method and apparatus for recovering information from a videodisc |
FR2528605B1 (fr) * | 1982-06-15 | 1987-11-20 | Thomson Csf | Procede et dispositif optique de focalisation d'un faisceau d'energie lumineuse sur un plan de reference d'un support d'information ainsi que ce support |
US4805162A (en) * | 1982-11-01 | 1989-02-14 | Storage Technology Partners Ii | Fine and coarse servo system for access and tracking on an optical disk |
EP0138947A1 (en) * | 1983-03-07 | 1985-05-02 | Storage Technology Partners Ii | System for sensing the rotational position of a rotating disk having coarse seek tracks |
JP2578738B2 (ja) * | 1983-03-19 | 1997-02-05 | ソニー株式会社 | 自動選曲機能付レコ−ドプレ−ヤ |
WO1984004990A1 (en) * | 1983-06-07 | 1984-12-20 | Storage Technology Partners | A system and method for organizing and managing data stored on an informational disk |
JPH0812743B2 (ja) * | 1983-06-30 | 1996-02-07 | 株式会社東芝 | ディスク装置 |
JPH0634304B2 (ja) * | 1983-09-01 | 1994-05-02 | ソニー株式会社 | デイスク再生装置 |
US4567532A (en) * | 1983-09-16 | 1986-01-28 | Sanders Associates, Inc. | Selectable view video record/playback system |
EP0156880A1 (en) * | 1983-09-19 | 1985-10-09 | Storage Technology Partners Ii | Optically storing digital data |
WO1985001381A1 (en) * | 1983-09-19 | 1985-03-28 | Storage Technology Partners Ii | Preformatted diagnostic information recording disk |
US4538069A (en) * | 1983-10-28 | 1985-08-27 | Control Data Corporation | Capacitance height gage applied in reticle position detection system for electron beam lithography apparatus |
US4736352A (en) * | 1983-11-25 | 1988-04-05 | Matsushita Electric Industrial Co., Ltd. | Optical recording medium and apparatus for recording and reproducing data therein |
US4672600A (en) * | 1983-11-28 | 1987-06-09 | Northern Telecom Limited | Optical disc having protective cover |
JPS60177404A (ja) * | 1984-02-23 | 1985-09-11 | Toshiba Corp | デイスク装置 |
US4706117A (en) * | 1984-06-01 | 1987-11-10 | Arnold Schoolman | Stereo laser disc viewing system |
DE3570305D1 (en) * | 1984-06-01 | 1989-06-22 | Matsushita Electric Ind Co Ltd | Optical disk exclusively used for reproduction |
JPH0619863B2 (ja) * | 1984-06-13 | 1994-03-16 | 株式会社日立製作所 | 光磁気情報記憶方法及び装置 |
US4740941A (en) * | 1984-07-06 | 1988-04-26 | Storage Technology Partners 11 | System for aligning sector marks with data in a disk storage system |
US4884259A (en) * | 1984-08-28 | 1989-11-28 | Fuji Photo Film Co., Ltd. | Optical memory disk and track access therefor |
JPS61168131A (ja) * | 1985-01-21 | 1986-07-29 | Matsushita Electric Ind Co Ltd | 光情報記録再生装置 |
US4813011A (en) * | 1985-05-13 | 1989-03-14 | International Business Machines Corporation | Data processing peripheral subsystems having a controller and a plurality of peripheral devices |
US4841502A (en) * | 1985-06-14 | 1989-06-20 | Kabushiki Kaisha Toshiba | Information recording system and reproducing for recording and reproducing information on a magneto-optical disk |
NL193159C (nl) * | 1985-06-19 | 1998-12-04 | Hitachi Ltd | Voorgevormde registratiedrager voor het daarin met behulp van een lichtvlek schrijven van informatie. |
JPS62109236A (ja) * | 1985-11-07 | 1987-05-20 | Teac Co | トラツキングサ−ボ装置 |
JPS62117168A (ja) * | 1985-11-15 | 1987-05-28 | Teac Co | 情報記録円盤 |
JP2574752B2 (ja) * | 1986-01-22 | 1997-01-22 | 株式会社日立製作所 | 情報記録媒体および記録再生方法 |
NL8600934A (nl) * | 1986-04-14 | 1987-11-02 | Optical Storage Int | Optische registratiedrager en inrichting voor het uitlezen van de registratiedrager. |
NL8601006A (nl) * | 1986-04-21 | 1987-11-16 | Philips Nv | Werkwijze voor het aftasten van een stralingsgevoelig registratieoppervlak van een roterende schijfvormige drager met behulp van een gemoduleerde stralingsbundel, en optische schrijfinrichting voor het uitvoeren van de werkwijze. |
US4937810A (en) * | 1986-04-23 | 1990-06-26 | Drexler Technology Corporation | Optical recording tape with continuous prerecorded tracks |
US4957580A (en) * | 1986-04-23 | 1990-09-18 | Drexler Technology Corp. | Method for making an optical data card |
US5247646A (en) * | 1986-05-15 | 1993-09-21 | Aquidneck Systems International, Inc. | Compressed data optical disk storage system |
US5034914A (en) * | 1986-05-15 | 1991-07-23 | Aquidneck Systems International, Inc. | Optical disk data storage method and apparatus with buffered interface |
JPS62295270A (ja) * | 1986-06-13 | 1987-12-22 | Csk Corp | 光記録媒体の記録フオ−マツト |
US4760565A (en) * | 1986-09-15 | 1988-07-26 | International Business Machines Corporation | High speed track access for optical disks using acousto-optic deflector |
US5113061A (en) * | 1987-02-13 | 1992-05-12 | Olympus Optical Co., Ltd. | Optical card having an identifier for identifying track construction and apparatus for writing and/or reading data on and/or from the optical card |
US5214635A (en) * | 1987-02-27 | 1993-05-25 | Matsushita Electric Industrial Co., Ltd. | Erasable optical disk and optical information recording/reproduction apparatus |
KR910008503B1 (ko) * | 1987-03-13 | 1991-10-18 | 미쯔비시덴끼 가부시끼가이샤 | 광 디스크 |
GB8708166D0 (en) * | 1987-04-06 | 1987-05-13 | Morse Controls | Remote control mechanisms |
US5020040A (en) * | 1987-06-24 | 1991-05-28 | Digital Equipment Corporation | Overwriting system for magneto-optical recording with self timing track |
US4814903A (en) * | 1987-06-29 | 1989-03-21 | International Business Machines Corporation | Alternate storage areas in magnetooptical media |
GB8906353D0 (en) * | 1989-03-20 | 1989-05-04 | Dewar Productions Inc | Semi-timing optic lathe |
JPH0386944A (ja) | 1989-05-15 | 1991-04-11 | Seiko Epson Corp | 光学式情報記録媒体 |
JPH03201266A (ja) * | 1989-12-27 | 1991-09-03 | Victor Co Of Japan Ltd | 追記型情報記録媒体及びその記録装置 |
US5210660A (en) * | 1990-01-17 | 1993-05-11 | International Business Machines Corporation | Sectored servo independent of data architecture |
JPH04301222A (ja) * | 1991-03-28 | 1992-10-23 | Toshiba Corp | ディスク再生装置 |
US5878019A (en) * | 1991-04-02 | 1999-03-02 | U.S. Philips Corporation | Record carrier having at least two information volumes |
US5341356A (en) * | 1991-04-02 | 1994-08-23 | U.S. Philips Corporation | Method and device for recording information volumes in a track of a record carrier, and a device for reading the record carrier |
DE69226116T2 (de) * | 1991-04-02 | 1999-02-18 | Philips Electronics N.V., Eindhoven | Aufzeichnungsträger, Ausleseeinrichtung zum Auslesen des Aufzeichnungsträgers, sowie Verfahren und Aufzeicheneinrichtung zum Aufzeichnen von Information auf einem Aufzeichnungsträger |
JPH1196673A (ja) * | 1997-09-18 | 1999-04-09 | Fujitsu Ltd | 情報記録媒体の記録再生装置及び情報記録媒体 |
US6801376B2 (en) * | 2001-06-21 | 2004-10-05 | Hitachi Global Storage Technologies Netherlands B.V. | Method and apparatus for evaluating a head-disk interface condition for disk drives |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3185972A (en) * | 1961-10-10 | 1965-05-25 | Ibm | Transducer positioning system utilizing record with interspersed data and positioning information |
US3391247A (en) * | 1964-01-03 | 1968-07-02 | Minnesota Mining & Mfg | Television signal recording with sampled audio recorded during horizontal intervals |
US3408656A (en) * | 1966-05-18 | 1968-10-29 | Eastman Kodak Co | Method and appartus for recording composite diffraction grating pattern |
US3573471A (en) * | 1967-01-09 | 1971-04-06 | Harris Intertype Corp | Optically encoded disk read out system employing optical fibers |
US3614756A (en) * | 1970-01-21 | 1971-10-19 | Ibm | Magnetic record with servo track perpendicular to information track |
FR2235448B1 (sv) * | 1973-06-29 | 1976-05-07 | Thomson Brandt | |
SE7405076L (sv) * | 1974-04-16 | 1975-10-17 | Erik Gerhard Natanel Westberg | Optiskt massdataminne. |
US3919697A (en) * | 1974-06-26 | 1975-11-11 | Battelle Development Corp | Data record tracking using track identifying information in the gaps between recorded data groups |
US3994016A (en) * | 1975-03-31 | 1976-11-23 | Honeywell Information Systems, Inc. | Head positioning servo system for disk drives |
US3996570A (en) * | 1975-08-01 | 1976-12-07 | Ncr Corporation | Optical mass memory |
-
1976
- 1976-05-13 US US05/686,254 patent/US4094013A/en not_active Expired - Lifetime
- 1976-05-19 GB GB20682/76A patent/GB1551327A/en not_active Expired
- 1976-05-19 CA CA252,861A patent/CA1077620A/en not_active Expired
- 1976-05-19 SE SE7605648A patent/SE415305B/sv unknown
- 1976-05-19 IT IT23403/76A patent/IT1060627B/it active
- 1976-05-21 JP JP51058025A patent/JPS608530B2/ja not_active Expired
- 1976-05-21 FR FR7615388A patent/FR2312087A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
CA1077620A (en) | 1980-05-13 |
IT1060627B (it) | 1982-08-20 |
SE415305B (sv) | 1980-09-22 |
FR2312087A1 (fr) | 1976-12-17 |
JPS51146803A (en) | 1976-12-16 |
FR2312087B1 (sv) | 1979-07-27 |
US4094013A (en) | 1978-06-06 |
JPS608530B2 (ja) | 1985-03-04 |
GB1551327A (en) | 1979-08-30 |
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SU691923A1 (ru) | Устройство записи и считывани информации дл накопител запоминающего устройства | |
SU551696A1 (ru) | Запоминающий элемент с неразрушающим считыванием информации | |
FR2296906A1 (fr) | Dispositif de memoire a disque a acces direct et a tete fixe | |
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AT236671B (de) | Aufzeichnungs- oder Wiedergabegerät mit bandförmigem Aufzeichnungsträger | |
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