FR2584512B1 - Dispositif de lecture/ecriture sans contact, place entre un substrat de stockage et un ensemble de lecture/ecriture - Google Patents
Dispositif de lecture/ecriture sans contact, place entre un substrat de stockage et un ensemble de lecture/ecritureInfo
- Publication number
- FR2584512B1 FR2584512B1 FR858517167A FR8517167A FR2584512B1 FR 2584512 B1 FR2584512 B1 FR 2584512B1 FR 858517167 A FR858517167 A FR 858517167A FR 8517167 A FR8517167 A FR 8517167A FR 2584512 B1 FR2584512 B1 FR 2584512B1
- Authority
- FR
- France
- Prior art keywords
- read
- write
- storage substrate
- contactless
- assembly
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07777—Antenna details the antenna being of the inductive type
- G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07777—Antenna details the antenna being of the inductive type
- G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
- G06K19/07783—Antenna details the antenna being of the inductive type the inductive antenna being a coil the coil being planar
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10336—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- General Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Credit Cards Or The Like (AREA)
- Near-Field Transmission Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60147450A JP2567219B2 (ja) | 1985-07-03 | 1985-07-03 | 非接触方式による記憶基板とリ−ド・ライト装置間の書込み・読取り方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2584512A1 FR2584512A1 (fr) | 1987-01-09 |
FR2584512B1 true FR2584512B1 (fr) | 1990-08-17 |
Family
ID=15430625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR858517167A Expired - Lifetime FR2584512B1 (fr) | 1985-07-03 | 1985-11-20 | Dispositif de lecture/ecriture sans contact, place entre un substrat de stockage et un ensemble de lecture/ecriture |
Country Status (6)
Country | Link |
---|---|
US (1) | US4791285A (fr) |
JP (1) | JP2567219B2 (fr) |
AU (1) | AU578162B2 (fr) |
DE (1) | DE3622246A1 (fr) |
FR (1) | FR2584512B1 (fr) |
GB (1) | GB2177528B (fr) |
Families Citing this family (76)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2197107B (en) * | 1986-11-03 | 1990-12-12 | Mars Inc | Data-storing devices |
JPS63184184A (ja) * | 1987-01-26 | 1988-07-29 | Tokyo Keiki Co Ltd | メモリパツケ−ジシステム |
JPS63193896A (ja) * | 1987-02-06 | 1988-08-11 | 株式会社東芝 | 薄膜電磁変換器 |
CH668160GA3 (fr) * | 1987-04-22 | 1988-12-15 | ||
GB2204971A (en) * | 1987-05-19 | 1988-11-23 | Gen Electric Co Plc | Transportable security system |
NO882138L (no) * | 1987-05-19 | 1988-11-21 | Gen Electric Co Plc | Datalagringssystem. |
EP0309201B1 (fr) * | 1987-09-22 | 1993-05-26 | Hitachi Maxell Ltd. | Méthode et système de communication pour carte à puce sans contacts |
JPH01157896A (ja) * | 1987-09-28 | 1989-06-21 | Mitsubishi Electric Corp | 非接触型icカード及び非接触型カードリーダライタ |
DK173030B1 (da) * | 1988-04-08 | 1999-11-22 | Toppan Printing Company Ltd | Informationskort, som kan kommunikeres på kontaktfri måde |
CA1316268C (fr) * | 1988-06-22 | 1993-04-13 | Brooktree Corporation | Memoire programmable pour systeme de codage |
WO1990014626A1 (fr) * | 1989-05-15 | 1990-11-29 | Dallas Semiconductor Corporation | Systemes a jeton de donnee/bus monofil |
JPH0755593B2 (ja) * | 1989-05-18 | 1995-06-14 | 三菱電機株式会社 | 非接触icカード |
DE4001163C2 (de) * | 1989-10-09 | 1996-03-21 | Pepperl & Fuchs | Verfahren zum Bestimmen eines Arbeitsbereiches für den Datenaustausch bei einem induktiven Identifikationssystem und Vorrichtung hierzu |
DE3935364C1 (fr) * | 1989-10-24 | 1990-08-23 | Angewandte Digital Elektronik Gmbh, 2051 Brunstorf, De | |
JP2529436B2 (ja) * | 1989-11-28 | 1996-08-28 | 三菱電機株式会社 | 非接触型icカ―ドシステム |
JPH03171384A (ja) * | 1989-11-30 | 1991-07-24 | Sony Corp | 情報読取装置 |
US5274221A (en) * | 1990-06-22 | 1993-12-28 | Mitsubishi Denki Kabushiki Kaisha | Non-contact integrated circuit card |
JPH0454581A (ja) * | 1990-06-22 | 1992-02-21 | Mitsubishi Electric Corp | 非接触カード |
GB9016830D0 (en) * | 1990-07-31 | 1990-09-12 | Gec Avery Ltd | Reader unit |
DE4034225C2 (de) * | 1990-10-26 | 1994-01-27 | Reinhard Jurisch | Datenträger für Identifikationssysteme |
DE4104274C2 (de) * | 1991-02-13 | 1993-10-07 | Eurosil Electronic Gmbh | Verfahren zur Regelung der Versorgungsspannung für eine Last |
DE4107311C2 (de) * | 1991-03-07 | 1996-02-08 | Telefunken Microelectron | Verfahren zur drahtlosen Übertragung von Daten auf einen Datenträger |
FR2674052A1 (fr) * | 1991-03-15 | 1992-09-18 | Philips Composants | Carte a microcircuit. |
US5237165A (en) * | 1991-04-05 | 1993-08-17 | Tingley Iii Loyal H | Multi-turn coil structures and methods of winding same |
ES2095268T3 (es) * | 1991-04-23 | 1997-02-16 | Siemens Ag | Instalacion para la transmision de datos y energia sin contacto. |
JPH0528330A (ja) * | 1991-07-24 | 1993-02-05 | Mitsubishi Electric Corp | 非接触型可搬担体及びその初期化方法 |
GB2258748A (en) * | 1991-08-01 | 1993-02-17 | John Wolfgang Halpern | Pocketsize data reader for chip cards |
JPH05128324A (ja) * | 1991-11-07 | 1993-05-25 | Mitsubishi Electric Corp | 非接触カード、非接触カード用端末機及び非接触伝送システム |
DE4207447A1 (de) * | 1992-03-09 | 1993-09-16 | Provera Ges Fuer Projektierung | Verfahren und geraet zur digitalen aufzeichnung und wiedergabe von informationen |
US5229652A (en) * | 1992-04-20 | 1993-07-20 | Hough Wayne E | Non-contact data and power connector for computer based modules |
US5434396A (en) * | 1992-11-10 | 1995-07-18 | Xicor Inc. | Wireless powering and communication system for communicating data between a host system and a stand-alone device |
US5574273A (en) * | 1993-06-14 | 1996-11-12 | Hitachi Maxell, Ltd. | Non-contact system parallel data transfer system |
JPH07104944A (ja) * | 1993-09-30 | 1995-04-21 | Sony Corp | 情報転送装置 |
JP3522806B2 (ja) * | 1993-11-29 | 2004-04-26 | 株式会社東芝 | Icカードリーダライタ |
JPH08102701A (ja) * | 1994-09-30 | 1996-04-16 | Toshiba Corp | 磁気結合回路駆動方式 |
US6416714B1 (en) | 1995-04-25 | 2002-07-09 | Discovery Partners International, Inc. | Remotely programmable matrices with memories |
US6017496A (en) * | 1995-06-07 | 2000-01-25 | Irori | Matrices with memories and uses thereof |
US5874214A (en) * | 1995-04-25 | 1999-02-23 | Irori | Remotely programmable matrices with memories |
US6329139B1 (en) | 1995-04-25 | 2001-12-11 | Discovery Partners International | Automated sorting system for matrices with memory |
US5741462A (en) * | 1995-04-25 | 1998-04-21 | Irori | Remotely programmable matrices with memories |
US5751629A (en) * | 1995-04-25 | 1998-05-12 | Irori | Remotely programmable matrices with memories |
US6331273B1 (en) | 1995-04-25 | 2001-12-18 | Discovery Partners International | Remotely programmable matrices with memories |
EP0793191A1 (fr) * | 1996-02-27 | 1997-09-03 | Siemens Schweiz AG (Siemens Suisse SA) (Siemens Svizzera SA) Siemens Switzerland Ltd) | Appareil pour la programmation d'une station terrestre |
FR2745928B1 (fr) * | 1996-03-11 | 2001-01-12 | Gemplus Card Int | Dispositif d'echange d'informations sans contact avec un ticket electronique |
US5767495A (en) * | 1996-07-29 | 1998-06-16 | Mag-Tek, Inc. | Reduced-power magnetic transducer system utilizing a magnetoresistive head |
JP3392016B2 (ja) * | 1996-09-13 | 2003-03-31 | 株式会社日立製作所 | 電力伝送システム並びに電力伝送および情報通信システム |
SG54559A1 (en) | 1996-09-13 | 1998-11-16 | Hitachi Ltd | Power transmission system ic card and information communication system using ic card |
US5815020A (en) * | 1996-09-24 | 1998-09-29 | Motorola, Inc. | Balance differential receiver |
US5812942A (en) * | 1996-09-24 | 1998-09-22 | Motorola, Inc. | Balanced differential radio receiver and method of operation |
DE19816417A1 (de) * | 1998-04-14 | 1999-10-28 | Angewandte Digital Elektronik | Chipkarte mit elektronischer Sperrfunktion |
FR2785419B1 (fr) * | 1998-10-28 | 2003-01-24 | Solaic Sa | Dispositif de lecture/ecriture pour une carte a memoire |
JP3494067B2 (ja) * | 1999-03-19 | 2004-02-03 | 日本電信電話株式会社 | 基地局通信装置、及び携帯無線通信装置への電力供給方法 |
JP2001266094A (ja) * | 2000-03-15 | 2001-09-28 | Toshiba Corp | 非接触通信装置及び非接触通信装置の制御方法 |
US7003167B2 (en) * | 2001-11-01 | 2006-02-21 | Hewlett-Packard Development Company, L.P. | Single-pass guaranteed-fit data compression using rate feedback |
KR100468534B1 (ko) * | 2002-01-31 | 2005-01-27 | 주식회사 엑스넷 | 무선 통신을 이용한 실시간 컨벤션 이벤트 관리시스템 |
US6970089B2 (en) | 2002-07-03 | 2005-11-29 | Battelle Memorial Institute K1-53 | Full-spectrum passive communication system and method |
JP4380323B2 (ja) * | 2003-12-25 | 2009-12-09 | ブラザー工業株式会社 | 無線タグリーダライタ、タグテープ、及び無線タグ作成方法 |
EP2039460A3 (fr) * | 2004-11-02 | 2014-07-02 | HID Global GmbH | Dispositif de pose, dispositif d'établissement de contact, système d'avance, unité de pose et d'établissement de contact, installation de production, procédé de fabrication et ensemble transpondeur |
US7793839B2 (en) | 2006-08-07 | 2010-09-14 | Smart Wave Technologies Corporation | System enabling the exchange of information between products |
US8608080B2 (en) | 2006-09-26 | 2013-12-17 | Feinics Amatech Teoranta | Inlays for security documents |
US7971339B2 (en) | 2006-09-26 | 2011-07-05 | Hid Global Gmbh | Method and apparatus for making a radio frequency inlay |
US7581308B2 (en) | 2007-01-01 | 2009-09-01 | Advanced Microelectronic And Automation Technology Ltd. | Methods of connecting an antenna to a transponder chip |
US8286332B2 (en) | 2006-09-26 | 2012-10-16 | Hid Global Gmbh | Method and apparatus for making a radio frequency inlay |
US7979975B2 (en) | 2007-04-10 | 2011-07-19 | Feinics Amatech Teavanta | Methods of connecting an antenna to a transponder chip |
US7546671B2 (en) | 2006-09-26 | 2009-06-16 | Micromechanic And Automation Technology Ltd. | Method of forming an inlay substrate having an antenna wire |
US8322624B2 (en) | 2007-04-10 | 2012-12-04 | Feinics Amatech Teoranta | Smart card with switchable matching antenna |
US7980477B2 (en) | 2007-05-17 | 2011-07-19 | Féinics Amatech Teoranta | Dual interface inlays |
JP4437560B2 (ja) * | 2007-08-02 | 2010-03-24 | ソニー株式会社 | 情報処理装置および方法、並びに、非接触icカードデバイス |
ES2355682T3 (es) | 2007-09-18 | 2011-03-30 | Hid Global Ireland Teoranta | Procedimiento para la unión de un conductor de cable dispuesto sobre un sustrato. |
JP4698702B2 (ja) * | 2008-05-22 | 2011-06-08 | 三菱電機株式会社 | 電子機器 |
US7714791B2 (en) | 2008-07-02 | 2010-05-11 | Raytheon Company | Antenna with improved illumination efficiency |
US8717242B2 (en) | 2011-02-15 | 2014-05-06 | Raytheon Company | Method for controlling far field radiation from an antenna |
US9129200B2 (en) | 2012-10-30 | 2015-09-08 | Raytheon Corporation | Protection system for radio frequency communications |
US9812790B2 (en) | 2014-06-23 | 2017-11-07 | Raytheon Company | Near-field gradient probe for the suppression of radio interference |
US11300598B2 (en) | 2018-11-26 | 2022-04-12 | Tom Lavedas | Alternative near-field gradient probe for the suppression of radio frequency interference |
US11984922B2 (en) | 2021-11-30 | 2024-05-14 | Raytheon Company | Differential probe with single transceiver antenna |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1314021A (en) * | 1969-02-28 | 1973-04-18 | Halpern John Wolfgang | Digital data carrying component and associable data transfer device |
US3870866A (en) * | 1971-11-11 | 1975-03-11 | Halpern John Wolfgang | Fee charging system |
US3906460A (en) * | 1973-01-11 | 1975-09-16 | Halpern John Wolfgang | Proximity data transfer system with tamper proof portable data token |
FR2304965A2 (fr) * | 1974-03-25 | 1976-10-15 | Innovation Ste Int | Procede et dispositif de commande electronique |
US4029945A (en) * | 1975-08-27 | 1977-06-14 | Stanley Electric Co., Ltd. | Card and card reader apparatus therefor |
US4661691A (en) * | 1976-03-02 | 1987-04-28 | Paperless Accounting, Inc. | Proximity data transfer system |
US4277837A (en) * | 1977-12-30 | 1981-07-07 | International Business Machines Corporation | Personal portable terminal for financial transactions |
FR2444976A1 (fr) * | 1978-12-21 | 1980-07-18 | Cii Honeywell Bull | Systeme de traitement d'informations a cartes portatives et a postes de commandes, utilisant des elements a bulles magnetiques |
FR2444975A1 (fr) * | 1978-12-21 | 1980-07-18 | Cii Honeywell Bull | Carte portative comportant des elements a bulles magnetiques |
FR2486684A1 (fr) * | 1980-07-11 | 1982-01-15 | Transac Cie Developp Transact | Objet portatif individualise du genre carte de credit |
US4473825A (en) * | 1982-03-05 | 1984-09-25 | Walton Charles A | Electronic identification system with power input-output interlock and increased capabilities |
JPS59212949A (ja) * | 1983-05-18 | 1984-12-01 | Dainippon Printing Co Ltd | Icカ−ドの処理方法および処理装置ならびにicカ−ド |
GB2167586A (en) * | 1984-11-12 | 1986-05-29 | Halpern John Wolfgang | Card reader |
US4605844A (en) * | 1985-02-11 | 1986-08-12 | At&T Technologies, Inc. | Computerized transaction card with inductive data transfer |
-
1985
- 1985-07-03 JP JP60147450A patent/JP2567219B2/ja not_active Expired - Lifetime
- 1985-11-20 FR FR858517167A patent/FR2584512B1/fr not_active Expired - Lifetime
-
1986
- 1986-05-22 GB GB8612563A patent/GB2177528B/en not_active Expired
- 1986-06-24 AU AU59180/86A patent/AU578162B2/en not_active Expired
- 1986-07-02 DE DE19863622246 patent/DE3622246A1/de active Granted
-
1988
- 1988-02-12 US US07/158,075 patent/US4791285A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU5918086A (en) | 1987-01-08 |
JP2567219B2 (ja) | 1996-12-25 |
FR2584512A1 (fr) | 1987-01-09 |
DE3622246C2 (fr) | 1991-03-14 |
JPS628281A (ja) | 1987-01-16 |
US4791285A (en) | 1988-12-13 |
AU578162B2 (en) | 1988-10-13 |
GB2177528A (en) | 1987-01-21 |
GB2177528B (en) | 1989-07-12 |
DE3622246A1 (de) | 1987-01-15 |
GB8612563D0 (en) | 1986-07-02 |
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