ATA5881A - Optisch auslesbarer aufzeichnungstraeger, vorrichtung zur herstellung eines solchen aufzeichnungstraegers, vorrichtung zum aufzeichnen von dateninformation auf einem solchen aufzeichnungstraeger und vorrichtung zum auslesen eines solchen aufzeichnungstraegers - Google Patents
Optisch auslesbarer aufzeichnungstraeger, vorrichtung zur herstellung eines solchen aufzeichnungstraegers, vorrichtung zum aufzeichnen von dateninformation auf einem solchen aufzeichnungstraeger und vorrichtung zum auslesen eines solchen aufzeichnungstraegersInfo
- Publication number
- ATA5881A ATA5881A AT0005881A AT5881A ATA5881A AT A5881 A ATA5881 A AT A5881A AT 0005881 A AT0005881 A AT 0005881A AT 5881 A AT5881 A AT 5881A AT A5881 A ATA5881 A AT A5881A
- Authority
- AT
- Austria
- Prior art keywords
- recording carrier
- recording
- carrier
- producing
- data information
- 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
- G11B7/24073—Tracks
- G11B7/24082—Meandering
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
- G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
-
- 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
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
-
- 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
- G11B7/24073—Tracks
- G11B7/24079—Width or depth
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Record Carriers And Manufacture Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8000121A NL8000121A (nl) | 1980-01-09 | 1980-01-09 | 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. |
Publications (2)
Publication Number | Publication Date |
---|---|
ATA5881A true ATA5881A (de) | 1982-06-15 |
AT369916B AT369916B (de) | 1983-02-10 |
Family
ID=19834642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT0005881A AT369916B (de) | 1980-01-09 | 1981-01-09 | Optisch auslesbarer aufzeichnungstraeger, vorrichtung zur herstellung eines solchen aufzeichnungstraegers, vorrichtung zum aufzeichnen von dateninformation auf einem solchen aufzeichnungstraeger und vorrichtung zum auslesen eines solchen aufzeichnungstraegers |
Country Status (23)
Country | Link |
---|---|
US (2) | US4972401A (de) |
JP (1) | JPS56105343A (de) |
AR (1) | AR232053A1 (de) |
AT (1) | AT369916B (de) |
AU (1) | AU542656B2 (de) |
BE (1) | BE886992A (de) |
BR (1) | BR8100042A (de) |
CA (1) | CA1157945A (de) |
CH (1) | CH675499A5 (de) |
DD (2) | DD160624A5 (de) |
DE (2) | DE3100421A1 (de) |
DK (1) | DK151420C (de) |
ES (1) | ES8201756A1 (de) |
FR (1) | FR2473769B1 (de) |
GB (1) | GB2069219B (de) |
HK (1) | HK47984A (de) |
IT (1) | IT1210972B (de) |
MX (1) | MX150987A (de) |
NL (1) | NL8000121A (de) |
NZ (1) | NZ195974A (de) |
SE (1) | SE447768B (de) |
SG (1) | SG10684G (de) |
ZA (1) | ZA807999B (de) |
Families Citing this family (109)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL8103117A (nl) * | 1981-06-29 | 1983-01-17 | Philips Nv | Inrichting voor het beschrijven en/of uitlezen van een registratiedrager. |
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. |
NL8006165A (nl) * | 1980-11-12 | 1982-06-01 | Philips Nv | Systeem voor het overdragen van digitale informatie, codeerinrichting voor toepassing in dat systeem, decodeerinrichting voor toepassing in dat systeem en registratiedrager voor toepassing in dat systeem. |
US5119363A (en) * | 1980-12-17 | 1992-06-02 | Matsushita Electric Industrial Company, Ltd. | Optical disk having an index mark |
FR2504301A1 (fr) * | 1981-04-15 | 1982-10-22 | Thomson Csf | Support d'informations mobile et dispositif d'enregistrement-lecture comprenant un tel support |
NL8102621A (nl) * | 1981-05-29 | 1982-12-16 | Philips Nv | Inrichting voor het beschrijven en/of uitlezen van een registratiedrager. |
NL8201411A (nl) * | 1982-04-02 | 1983-11-01 | Philips Nv | Werkwijze voor het optekenen van een digitaal informatiesignaal op een registratiedrager met een stralingsgevoelige informatielaag, een inrichting hiervoor en een optische registratiedrager voorzien van een dergelijk digitaal informatiesignaal. |
US4417330A (en) * | 1981-10-15 | 1983-11-22 | Burroughs Corporation | Optical memory system providing improved focusing control |
FR2523348A1 (fr) * | 1982-03-12 | 1983-09-16 | Thomson Csf | Procede et dispositif de regeneration de phase de signaux de synchronisation dans un appareil optique d'ecriture-lecture de support d'information |
JPS5911551A (ja) * | 1982-07-12 | 1984-01-21 | Toshiba Corp | 光学式情報記憶媒体 |
NL8203618A (nl) * | 1982-09-20 | 1984-04-16 | Philips Nv | Inrichting voor het uitlezen van een registratiedrager. |
FR2567673B1 (fr) * | 1984-07-10 | 1986-11-07 | Thomson Alcatel Gigadisc | Support d'information inscriptible optiquement selon une piste definie par des motifs de pregravure et dispositif optique de suivi de piste mettant en oeuvre un tel support |
NL8500152A (nl) * | 1985-01-22 | 1986-08-18 | Philips Nv | Registratiedragerlichaam voorzien van vooraf aangebrachte en optisch detekteerbare servospoorgedeelten en sektoradressen. |
NL8500153A (nl) * | 1985-01-22 | 1986-08-18 | Philips Nv | Registratiedragerlichaam voorzien van een reliefstruktuur van optisch detekteerbare servospoorgedeelten en sektoradressen en inrichting voor het aanbrengen van deze struktuur. |
JPH0721892B2 (ja) * | 1985-02-14 | 1995-03-08 | 日本電気株式会社 | 光磁気記録方法 |
JPH0721895B2 (ja) * | 1985-02-19 | 1995-03-08 | 日本電気株式会社 | 光磁気記録方法 |
JPH0721896B2 (ja) * | 1985-02-19 | 1995-03-08 | 日本電気株式会社 | 光磁気記録方法 |
JPH0721893B2 (ja) * | 1985-02-19 | 1995-03-08 | 日本電気株式会社 | 光磁気記録方法 |
JPH0721894B2 (ja) * | 1985-02-19 | 1995-03-08 | 日本電気株式会社 | 光磁気記録方法 |
JPS61248250A (ja) * | 1985-04-26 | 1986-11-05 | Pioneer Electronic Corp | 円盤状記録媒体の製造方法 |
US4879707A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using discontinuities |
US4879708A (en) * | 1985-07-30 | 1989-11-07 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems specific track formats using wobbled pits |
US4959823A (en) * | 1985-07-30 | 1990-09-25 | Laser Magnetic Storage International Company | Tracking and seeking system for use with an optical record carrier having a wobbled track format |
CA1257391A (en) * | 1985-07-30 | 1989-07-11 | Kurt W. Getreuer | Optical disk tracking and seeking systems and specific track formats (servo areas) |
US5339301A (en) * | 1986-10-06 | 1994-08-16 | U.S. Philips Corporation | Optically readable record carrier for recording information, method and apparatus for manufacturing such, apparatus for recording and reading information on a such a record carrier |
NL8602504A (nl) * | 1986-10-06 | 1988-05-02 | Philips Nv | Optisch uitleesbare registratiedrager voor het optekenen van informatie, een inrichting voor het vervaardigen van een dergelijke registratiedrager, een inrichting voor het optekenen van informatie op een dergelijke registratiedrager, alsmede een inrichting voor het uitlezen van op een dergelijke registratiedrager opgetekende informatie. |
NL8700655A (nl) * | 1986-10-06 | 1988-05-02 | Philips Nv | Optisch uitleesbare registratiedrager voor het optekenen van informatie, een werkwijze en een inrichting voor het vervaardigen van een dergelijke registratiedrager, een inrichting voor het optekenen van informatie op een dergelijke registratiedrager, alsmede een inrichting voor het uitlezen van op een dergelijke registratiedrager opgetekende informatie. |
NL8701632A (nl) * | 1987-07-10 | 1989-02-01 | Philips Nv | Systeem voor het optekenen en/of uitlezen van een informatiesignaal, een registratiedrager, een opteken en/of uitleesinrichting voor toepassing in een dergelijk systeem, en een inrichting en werkwijze voor het vervaardigen van een dergelijke registratiedrager. |
JPH01141436A (ja) * | 1987-11-27 | 1989-06-02 | Sony Corp | フレーム同期化方法 |
NL8702904A (nl) * | 1987-12-03 | 1989-07-03 | Philips Nv | Werkwijze en inrichting voor het optekenen van informatie op een registratiedrager, alsmede een inrichting voor het lezen van de opgetekende informatie. |
US5031166A (en) * | 1988-01-25 | 1991-07-09 | Laser Magnetic Storage International Company | Optical disk tracking and seeking systems and specific track formats using discontinuities and circuitry therefor |
NL8800255A (nl) * | 1988-02-03 | 1989-09-01 | Philips Nv | Optische registratiedrager. |
EP0336706B1 (de) * | 1988-04-07 | 1994-07-06 | Hitachi Maxell Ltd. | Platteneinheitsvorrichtung |
US5185732A (en) * | 1988-06-20 | 1993-02-09 | Sony Corporation | Recording medium and recording and reproducing apparatus employing the recording medium |
NL8901142A (nl) * | 1989-05-08 | 1990-12-03 | Philips Nv | Inrichting voor het uitlezen van een op een registratiedrager aangebracht informatiepatroon, alsmede een signaalverwerkingsschakeling voor toepassing in een dergelijke inrichting. |
DE3923330A1 (de) * | 1989-07-14 | 1991-01-24 | Thomson Brandt Gmbh | Optische abtastvorrichtung |
CA2054880C (en) † | 1990-11-09 | 1997-07-08 | Shigemi Maeda | Information recording and reproducing device |
US5204848A (en) * | 1991-06-17 | 1993-04-20 | International Business Machines Corporation | Adjusting amplitude detection threshold by feeding back timing-data phase errors |
DE4345507C2 (de) * | 1992-09-29 | 2003-01-30 | Pioneer Electronic Corp | Optische Disk und Vorrichtung zu deren Wiedergabe |
DE4345525C2 (de) * | 1992-09-29 | 2002-11-07 | Pioneer Electronic Corp | Optische Disk und Vorrichtung zu deren Wiedergabe |
US5835478A (en) * | 1995-06-15 | 1998-11-10 | Sony Corporation | Optical disc having address information for recording and reproducing data at correct positions |
JPH09237421A (ja) * | 1996-03-01 | 1997-09-09 | Sony Corp | 記録再生装置および方法 |
JP2856390B2 (ja) | 1996-07-26 | 1999-02-10 | 株式会社日立製作所 | 情報記録媒体及びそれを用いた記録再生方法 |
US5809006A (en) * | 1996-05-31 | 1998-09-15 | Cagent Technologies, Inc. | Optical disk with copy protection, and apparatus and method for recording and reproducing same |
JPH1074321A (ja) * | 1996-07-05 | 1998-03-17 | Sharp Corp | 光ディスク基板及びその製造方法並びに光ディスク及びその再生方法 |
JPH1069640A (ja) * | 1996-08-27 | 1998-03-10 | Mitsumi Electric Co Ltd | Cd−rドライブにおけるウォブル信号生成方法 |
EP0858655B1 (de) * | 1996-09-03 | 2003-05-07 | Koninklijke Philips Electronics N.V. | Informationstrager, lese-/schreibvorrichtung und lesevorrichtung zum lesen und/oder schreiben von informationsblöcken |
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JPH10320773A (ja) * | 1997-05-19 | 1998-12-04 | Sony Corp | 光ディスクの製造方法、光ディスク及び光ディスク装置 |
US6046968A (en) * | 1997-07-24 | 2000-04-04 | Hewlett-Packard Company | Re-writable optical disk having reference clock information permanently formed on the disk |
US7701836B2 (en) | 2001-11-27 | 2010-04-20 | Hewlett-Packard Development Company, L.P. | Re-writable optical disk having reference clock information permanently formed on the disk |
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EP1436700A2 (de) * | 2000-05-30 | 2004-07-14 | DPHI Aquisitions, Inc. | Fehlerverwaltungssystem für einmal beschreibbare speicherplatte |
BR0107100A (pt) | 2000-08-14 | 2002-06-11 | Koninkl Philips Electronics Nv | Método para gerar um sinal binário primário, dispositivo para gerar o fluxo de bits de canal de um sinal binário primário, e, portador de gravação |
US6909676B2 (en) * | 2001-01-25 | 2005-06-21 | Dphi Acquisitions, Inc. | Digital tracking servo system with multi-track seek with track zero crossing detection |
US6956797B2 (en) * | 2001-01-25 | 2005-10-18 | Dphi Acquisitions, Inc. | Digital servo system with error signal integrity testing |
US6813226B2 (en) | 2001-01-25 | 2004-11-02 | Dphi Acquisitions, Inc. | Calibration of a focus sum threshold in a focus servo system |
US6781929B2 (en) | 2001-01-25 | 2004-08-24 | Dphi Acquisitions, Inc. | Digital tracking servo system with multi-track seek |
US6906985B2 (en) | 2001-01-25 | 2005-06-14 | Dphi Acquisitions, Inc. | Calibration of tracking error signal gain in a tracking servo system |
US7260031B2 (en) | 2001-01-25 | 2007-08-21 | Dphi Acquisitions, Inc. | Digital focus and tracking servo system with one-track jump |
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US7522480B2 (en) | 2001-01-25 | 2009-04-21 | Dphi Acquisitions, Inc. | Digital tracking servo system with multi-track seek with an acceleration clamp |
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US6950380B2 (en) * | 2001-01-25 | 2005-09-27 | Dphi Acquisitions, Inc. | Detector input dark current offset calibration in an optical disk drive digital servo |
US6882601B2 (en) | 2001-01-25 | 2005-04-19 | Dphi Acquisitions, Inc. | Digital servo system with feed-forward control loops |
US6738320B2 (en) | 2001-01-25 | 2004-05-18 | Dphi Acquisitions, Inc. | System and method for moving optical pick up from current position to target position with smooth control |
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US6937543B2 (en) | 2001-01-25 | 2005-08-30 | Dphi Acquisitions, Inc. | Digital focus servo system with a sliding notch filter |
US7492675B2 (en) * | 2001-01-25 | 2009-02-17 | Dphi Acquisitions, Inc. | Digital servo system with calibrated notch filters |
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US7782721B2 (en) * | 2001-01-25 | 2010-08-24 | Dphi Acquisitions, Inc. | Digital focus and tracking servo system with multi-zone calibration |
US7593300B2 (en) | 2001-01-25 | 2009-09-22 | Dphi Acquisitions, Inc. | Digital tracking servo system with off-format detection |
US6762980B2 (en) | 2001-01-25 | 2004-07-13 | Dphi Acquisitions, Inc. | Digital tracking servo system with a multi-track seeking and accelerated servo function for regaining a closed tracking loop |
US7095683B2 (en) * | 2001-01-25 | 2006-08-22 | Dphi Acquisitions, Inc. | Tracking and focus digital servo system with write abort |
US6958957B2 (en) * | 2001-01-25 | 2005-10-25 | Dphi Acquisitions, Inc. | Digital tracking and focus servo system with TES to FES crosstalk calibration |
US6885619B2 (en) | 2001-01-25 | 2005-04-26 | Dphi Acquisitions, Inc. | Detector input stray light offset calibration in an optical disk drive |
US6922380B2 (en) | 2001-01-25 | 2005-07-26 | Dphi Acquisitions, Inc. | Tracking and focus servo system with anti-skate algorithm |
US6847597B2 (en) | 2001-01-25 | 2005-01-25 | Dphi Acquisitions, Inc. | Optical disk drive with a digital focus and tracking servo system |
US6704261B2 (en) | 2001-01-25 | 2004-03-09 | Dphi Acquisitions, Inc. | Spin motor control in an optical drive |
US6847596B2 (en) | 2001-01-25 | 2005-01-25 | Dphi Acquisitions, Inc. | Tracking servo system including a multi-track seek algorithm with a track zero crossing period integrity test |
US7680004B2 (en) * | 2001-01-25 | 2010-03-16 | Dphi Acquisitions, Inc. | Digital servo system with inverse non-linearity compensation |
US6891789B2 (en) * | 2001-01-25 | 2005-05-10 | Dphi Acquisitions, Inc. | Tracking and focus servo system with automatic media type detector |
JP4300727B2 (ja) * | 2001-10-09 | 2009-07-22 | ソニー株式会社 | ディスク記録媒体、ディスクドライブ装置、再生方法、ディスク製造方法 |
US7099244B2 (en) * | 2002-10-10 | 2006-08-29 | Matsushita Electric Industrial Co., Ltd. | Wobble demodulator and wobble demodulation method |
DE60336674D1 (de) * | 2002-11-06 | 2011-05-19 | Koninkl Philips Electronics Nv | Datenträger |
SI1597727T1 (sl) * | 2003-02-20 | 2012-05-31 | Koninkl Philips Electronics Nv | Nosilec informacij ki obsega podatke o dostopu |
ES2383297T3 (es) | 2003-02-20 | 2012-06-20 | Koninklijke Philips Electronics N.V. | Soporte de información que comprende información de acceso e información ficticia |
EP1486957A1 (de) * | 2003-06-12 | 2004-12-15 | Maiworm & Dr. Bosien Grundstücks GbR | Datenträger des beschreibbaren, optisch auslesbaren Typs mit einer Servospur und Verfahren zur Herstellung der Servospur |
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JPS583297B2 (ja) * | 1978-06-09 | 1983-01-20 | 株式会社日立製作所 | 情報記録再生方法,その装置およびその記録媒体 |
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US4229808A (en) * | 1978-12-21 | 1980-10-21 | Ncr Corporation | Method for recording multiple data segments on a storage disc with eccentricity factor |
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-
1980
- 1980-01-09 NL NL8000121A patent/NL8000121A/nl not_active Application Discontinuation
- 1980-12-22 ZA ZA00807999A patent/ZA807999B/xx unknown
- 1980-12-30 AR AR283842A patent/AR232053A1/es active
-
1981
- 1981-01-05 SE SE8100021A patent/SE447768B/sv not_active IP Right Cessation
- 1981-01-05 GB GB8100124A patent/GB2069219B/en not_active Expired
- 1981-01-05 MX MX185466A patent/MX150987A/es unknown
- 1981-01-06 DD DD81226849A patent/DD160624A5/de unknown
- 1981-01-06 NZ NZ195974A patent/NZ195974A/en unknown
- 1981-01-06 BR BR8100042A patent/BR8100042A/pt not_active IP Right Cessation
- 1981-01-06 CH CH34/81A patent/CH675499A5/de not_active IP Right Cessation
- 1981-01-06 IT IT8119018A patent/IT1210972B/it active
- 1981-01-06 AU AU65993/81A patent/AU542656B2/en not_active Expired
- 1981-01-06 DK DK003481A patent/DK151420C/da not_active IP Right Cessation
- 1981-01-07 CA CA000368010A patent/CA1157945A/en not_active Expired
- 1981-01-07 FR FR8100148A patent/FR2473769B1/fr not_active Expired
- 1981-01-07 ES ES498344A patent/ES8201756A1/es not_active Expired
- 1981-01-07 BE BE0/203422A patent/BE886992A/fr not_active IP Right Cessation
- 1981-01-09 JP JP128381A patent/JPS56105343A/ja active Granted
- 1981-01-09 DE DE19813100421 patent/DE3100421A1/de active Granted
- 1981-01-09 AT AT0005881A patent/AT369916B/de not_active IP Right Cessation
- 1981-01-09 DE DE3153674A patent/DE3153674C2/de not_active Expired - Lifetime
-
1982
- 1982-11-11 DD DD82244789A patent/DD203789A5/de unknown
-
1984
- 1984-02-07 SG SG106/84A patent/SG10684G/en unknown
- 1984-06-07 HK HK479/84A patent/HK47984A/xx not_active IP Right Cessation
-
1989
- 1989-01-17 US US07/224,085 patent/US4972401A/en not_active Expired - Lifetime
- 1989-07-25 US US08/375,620 patent/US5682365A/en not_active Expired - Lifetime
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