IT1045484B - Perfezionamenti ai supporti di informazione a lettura ottica - Google Patents

Perfezionamenti ai supporti di informazione a lettura ottica

Info

Publication number: IT1045484B
Authority: IT; Italy
Prior art keywords: reading information; optical reading; information supports; supports; optical
Prior art date: 1974-10-18

Application number

IT28322/75A

Other languages

English (en)

Original Assignee

Thomson Brandt

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.)

1974-10-18

Filing date

1975-10-16

Publication date

1980-05-10

1975-10-16 Application filed by Thomson Brandt filed Critical Thomson Brandt

1980-05-10 Application granted granted Critical

1980-05-10 Publication of IT1045484B publication Critical patent/IT1045484B/it

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
- G11B7/24018—Laminated discs

IT28322/75A 1974-10-18 1975-10-16 Perfezionamenti ai supporti di informazione a lettura ottica IT1045484B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7435148A FR2288370A1 (fr)	1974-10-18	1974-10-18	Perfectionnements aux supports d'information a lecture optique

Publications (1)

Publication Number	Publication Date
IT1045484B true IT1045484B (it)	1980-05-10

Family

ID=9144270

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT28322/75A IT1045484B (it)	1974-10-18	1975-10-16	Perfezionamenti ai supporti di informazione a lettura ottica

Country Status (7)

Country	Link
US (1)	US4020278A (it)
JP (1)	JPS5847771B2 (it)
CA (1)	CA1065983A (it)
DE (1)	DE2546607C2 (it)
FR (1)	FR2288370A1 (it)
GB (1)	GB1523474A (it)
IT (1)	IT1045484B (it)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4184700A (en) *	1975-11-17	1980-01-22	Lgz Landis & Gyr Zug Ag	Documents embossed with optical markings representing genuineness information
CH594935A5 (it) *	1975-12-23	1978-01-31	Landis & Gyr Ag
US4179532A (en) *	1976-04-09	1979-12-18	Polygram Gmbh	Process for producing a disc-shaped information carrier which has information in the form of a beam-reflecting structure
DE2618773C2 (de) *	1976-04-29	1985-02-21	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Aufzeichnungsträger für Daten
CH616253A5 (it) *	1977-06-21	1980-03-14	Landis & Gyr Ag
NL7713710A (nl) *	1977-12-12	1979-06-14	Philips Nv	Schijfvormige informatiedrager met afdeklagen.
US4231593A (en) *	1978-02-21	1980-11-04	Centurion Data Corporation	Check with electrically conductive layer
NL7803069A (nl) *	1978-03-22	1979-09-25	Philips Nv	Meerlaags informatieschijf.
NL7809227A (nl) *	1978-09-11	1980-03-13	Philips Nv	Registratiedrager met een optisch uitleesbare, stra- lingsreflekterende informatiestruktuur.
US4310919A (en) *	1979-01-15	1982-01-12	Discovision Associates	Optical video disc structure
US4441179A (en) *	1979-01-15	1984-04-03	Discovision Associates	Optical video disc structure
US4363844A (en) *	1980-09-22	1982-12-14	Lewis Terry W	Metallized information carrying discs
US4519065A (en) *	1980-09-22	1985-05-21	Minnesota Mining And Manufacturing Company	Metallized information carrying discs
JPS5767260U (it) *	1980-10-09	1982-04-22
US5305301A (en) *	1981-04-10	1994-04-19	Sony Corporation	Optically readable record carriers
JPS586536A (ja) *	1981-07-01	1983-01-14	Pioneer Electronic Corp	光学式デイスク
JPS5849335U (ja) *	1981-09-30	1983-04-02	日本コロムビア株式会社	光学デイスク
EP0097430B1 (en) *	1982-05-25	1988-07-20	Unisys Corporation	Method for detecting fire
JPS5954051A (ja) *	1982-09-20	1984-03-28	Pioneer Electronic Corp	光学式情報記録担体及びその製造方法
NL8301632A (nl) *	1983-05-09	1984-12-03	Philips Nv	Registratiedrager waarin langs optische weg informatie kan worden ingeschreven en uitgelezen.
JPS59189733U (ja) *	1983-06-02	1984-12-15	株式会社　坂巻製作所	光学式デイスク
JPS6034664U (ja) *	1983-08-15	1985-03-09	ソニー株式会社	光学式情報カ−ド
JPS6034663U (ja) *	1983-08-15	1985-03-09	ソニー株式会社	光学式情報カ−ド
WO1985003376A1 (en) *	1984-01-30	1985-08-01	Illuminated Data, Inc.	Optical data storage and readout apparatus
US4719137A (en) *	1984-04-13	1988-01-12	Sharp Kabushiki Kaisha	Magneto-optic memory element
US4652498A (en) *	1985-10-22	1987-03-24	Minnesota Mining And Manufacturing Company	Environmentally protected optical recording media
JP2552109B2 (ja) *	1985-11-08	1996-11-06	セイコーエプソン株式会社	光記録再生装置
US4831244A (en) *	1987-10-01	1989-05-16	Polaroid Corporation	Optical record cards
US5404345A (en) *	1991-06-07	1995-04-04	Brother Kogyo Kabushiki Kaisha	Optical recording medium and tracking servo circuit adapted therefor using wobbled pits
WO1994023395A1 (en) *	1993-04-06	1994-10-13	Commonwealth Scientific And Industrial Research Organisation	Optical data element
JPH08509566A (ja) *	1993-12-23	1996-10-08	トムソン−セーエスエフ	記録媒体の上で情報を書き込み／読み出す光システムおよびその方法
FR2727542B1 (fr) *	1994-11-25	1997-01-03	Droz Francois	Carte incorporant au moins un element electronique
FR2742911B1 (fr) *	1995-12-21	1998-02-06	Thomson Csf	Support d'enregistrement/lecture optique d'informations et procede d'enregistrement
US5996892A (en) *	1996-03-27	1999-12-07	The Goodyear Tire & Rubber Company	Means and method of identifying objects using a zero contrast sensor
US7179551B2 (en)	1999-02-12	2007-02-20	General Electric Company	Poly(arylene ether) data storage media
BR0008208A (pt) *	1999-02-12	2002-02-19	Gen Electric	Meios de armazenamento de dados
JP2001155346A (ja) *	1999-11-26	2001-06-08	Toshiba Corp	情報記録媒体、情報記録装置、情報記録方法、情報再生装置、情報再生方法
US20020155216A1 (en) *	2001-04-19	2002-10-24	Reitz John Bradford	Spin coated media
US20030234470A1 (en) *	2002-06-20	2003-12-25	Haan Stephen F.	Embossing apparatus, method of use thereof and resulting article

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3430966A (en) *	1967-04-03	1969-03-04	Gauss Electrophysics Inc	Transparent recording disc
US3855426A (en) *	1971-03-11	1974-12-17	Philips Corp	Video disc recording and optical playback system therefor
US3919465A (en) *	1974-01-14	1975-11-11	Zenith Radio Corp	Optical system for directly detecting spatially recorded signals
US3931459A (en) *	1974-02-04	1976-01-06	Zenith Radio Corporation	Video disc

1974
- 1974-10-18 FR FR7435148A patent/FR2288370A1/fr active Granted
1975
- 1975-10-16 US US05/623,077 patent/US4020278A/en not_active Expired - Lifetime
- 1975-10-16 IT IT28322/75A patent/IT1045484B/it active
- 1975-10-17 GB GB42814/75A patent/GB1523474A/en not_active Expired
- 1975-10-17 DE DE2546607A patent/DE2546607C2/de not_active Expired
- 1975-10-17 CA CA238,016A patent/CA1065983A/en not_active Expired
- 1975-10-18 JP JP50125825A patent/JPS5847771B2/ja not_active Expired

Also Published As

Publication number	Publication date
JPS5847771B2 (ja)	1983-10-25
CA1065983A (en)	1979-11-06
GB1523474A (en)	1978-08-31
DE2546607A1 (de)	1976-04-22
FR2288370A1 (fr)	1976-05-14
JPS5165604A (it)	1976-06-07
FR2288370B1 (it)	1979-02-23
DE2546607C2 (de)	1983-07-14
US4020278A (en)	1977-04-26

Publication	Publication Date	Title
IT1045484B (it)	1980-05-10	Perfezionamenti ai supporti di informazione a lettura ottica
IT1031405B (it)	1979-04-30	Lettore ottico
IT1022862B (it)	1978-04-20	Struttura portante di registrazione a lettura ottica per la memoria di informazioni
AT369937B (de)	1983-02-10	Optische ausleseeinheit
NL161624C (nl)	1980-02-15	Optische afleesinrichting.
DK144608B3 (da)	1982-10-18	Holder til strimmelformede informationsbaerere
IT1118202B (it)	1986-02-24	Dispositivo ottico di scansione
SE410060B (sv)	1979-09-17	Datadrivet informationsbehandlingssystem
FR2295841A1 (fr)	1976-07-23	Photocomposeuse a laser
SE7512546L (sv)	1976-05-14	Anordning for lesning av en uppteckningsberare med en optisk informationsstruktur
BE862230A (nl)	1978-04-14	Optische leeskop
IT1051935B (it)	1981-05-20	Cassetta di nastro
SE7712504L (sv)	1978-05-06	Handburen informationsformedlare
IT1077491B (it)	1985-05-04	Percettore ottico di posizione
IT1051812B (it)	1981-05-20	Cassetta di nastro
SE7510960L (sv)	1976-03-31	Optiskt system
IT1097580B (it)	1985-08-31	Dispositivo di registrazione ottica a comando numerico
SE406882B (sv)	1979-03-05	Textredigerande databearbetningssystem
IT1128073B (it)	1986-05-28	Sopporto di registrazione di informauione del tipo a lettura ottica
IT1071416B (it)	1985-04-10	Supporto di registrazione a lettura ottica e relativo apparecchio di lettura
IT1052803B (it)	1981-07-20	Nastro precorritore per supporti di informazioni a nastro
SE410808B (sv)	1979-11-05	Uppteckningsberare
IT1037991B (it)	1979-11-20	Dispositivo per la lettura di un elemento magnetizzato di supporto di informazioni
IT967860B (it)	1974-03-11	Disposizione per la lettura ottica di informazioni
IT1039915B (it)	1979-12-10	Disposizione per trasformare direttamente informazioni memrizzate magneticamente insegnali ottici