FR2061741A1 - - Google Patents
Info
- Publication number
- FR2061741A1 FR2061741A1 FR7033432A FR7033432A FR2061741A1 FR 2061741 A1 FR2061741 A1 FR 2061741A1 FR 7033432 A FR7033432 A FR 7033432A FR 7033432 A FR7033432 A FR 7033432A FR 2061741 A1 FR2061741 A1 FR 2061741A1
- Authority
- FR
- France
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
- G11C17/02—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using magnetic or inductive elements
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
- G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
-
- 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
- G06K19/06187—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 with magnetically detectable marking
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/716—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by two or more magnetic layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
- G11B5/855—Coating only part of a support with a magnetic layer
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Magnetic Record Carriers (AREA)
- Credit Cards Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691946760 DE1946760A1 (de) | 1969-09-16 | 1969-09-16 | Magnetischer Informationsspeicher |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2061741A1 true FR2061741A1 (fr) | 1971-06-25 |
FR2061741B1 FR2061741B1 (fr) | 1974-05-17 |
Family
ID=5745596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7033432A Expired FR2061741B1 (fr) | 1969-09-16 | 1970-09-15 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3683340A (fr) |
DE (1) | DE1946760A1 (fr) |
FR (1) | FR2061741B1 (fr) |
NL (1) | NL7011715A (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3806903A (en) * | 1971-12-06 | 1974-04-23 | Hughes Aircraft Co | Magneto-optical cylindrical magnetic domain memory |
USRE28440E (en) * | 1971-12-06 | 1975-06-03 | Magneto-optical cylindrical magnetic domain memory | |
US3896292A (en) * | 1973-06-18 | 1975-07-22 | Michael May | Hall effect position coded card detector |
US5504699A (en) * | 1994-04-08 | 1996-04-02 | Goller; Stuart E. | Nonvolatile magnetic analog memory |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH420690A (de) * | 1963-10-28 | 1966-09-15 | Plessey Uk Limited | Magnetische Karte für ein Kartenprüfgerät und Verfahren zur Herstellung von magnetischen Karten |
FR1471893A (fr) * | 1965-03-24 | 1967-03-03 | Siemens Ag | Porteur d'informations à exploration galvanomagnétique comportant un organe d'exploration |
US3430200A (en) * | 1967-06-30 | 1969-02-25 | Walter W Barney | Validator apparatus for magnetic credit cards and the like |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL232741A (fr) * | 1957-10-30 | |||
NL291361A (fr) * | 1962-04-16 | |||
BE642720A (fr) * | 1962-06-29 | |||
GB999496A (en) * | 1964-04-22 | 1965-07-28 | Nickolai Alexandrovich Zykov | Inductive type memory matrix with recording information on shielding punched cards |
US3490011A (en) * | 1966-08-12 | 1970-01-13 | Texas Instruments Inc | Read-only memory with an adjacent apertured magnetic plate |
-
1969
- 1969-09-16 DE DE19691946760 patent/DE1946760A1/de active Pending
-
1970
- 1970-08-07 NL NL7011715A patent/NL7011715A/xx unknown
- 1970-09-02 US US69040A patent/US3683340A/en not_active Expired - Lifetime
- 1970-09-15 FR FR7033432A patent/FR2061741B1/fr not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH420690A (de) * | 1963-10-28 | 1966-09-15 | Plessey Uk Limited | Magnetische Karte für ein Kartenprüfgerät und Verfahren zur Herstellung von magnetischen Karten |
FR1471893A (fr) * | 1965-03-24 | 1967-03-03 | Siemens Ag | Porteur d'informations à exploration galvanomagnétique comportant un organe d'exploration |
US3430200A (en) * | 1967-06-30 | 1969-02-25 | Walter W Barney | Validator apparatus for magnetic credit cards and the like |
Non-Patent Citations (3)
Title |
---|
(REVUE AMERICAINE I.B.M.TECH.DISCLOSURE BULLETIN VOL.5,NO 3,AOUT 1962,PAGE 43,ARTICLE:"READ-ONLYMEMOY FABRICATION" SCHUNZEL ) * |
MEMOY FABRICATION" SCHUNZEL ) * |
REVUE AMERICAINE I.B.M.TECH.DISCLOSURE BULLETIN VOL.5,NO 3,AOUT 1962,PAGE 43,ARTICLE:"READ-ONLY * |
Also Published As
Publication number | Publication date |
---|---|
DE1946760A1 (de) | 1971-03-25 |
US3683340A (en) | 1972-08-08 |
FR2061741B1 (fr) | 1974-05-17 |
NL7011715A (fr) | 1971-03-18 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |