GB1427517A - Machine-readable recording cards or sheets - Google Patents
Machine-readable recording cards or sheetsInfo
- Publication number
- GB1427517A GB1427517A GB1124772A GB1124772A GB1427517A GB 1427517 A GB1427517 A GB 1427517A GB 1124772 A GB1124772 A GB 1124772A GB 1124772 A GB1124772 A GB 1124772A GB 1427517 A GB1427517 A GB 1427517A
- Authority
- GB
- United Kingdom
- Prior art keywords
- machine
- recording layer
- sheets
- readable recording
- march
- 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
Links
Classifications
-
- 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
- G06K19/08—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 using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
- G06K19/10—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 using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
- G06K19/12—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 using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by magnetic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Credit Cards Or The Like (AREA)
Abstract
1427517 Credit cards and the like PLESSEY CO Ltd 7 March 1973 [10 March 1972] 11247/72 Heading B6A A recording card, particularly for use as a portable token, incorporates a recording layer of a material having a physical characteristic which can be changed to produce a variety of invisible but machine-readable record patterns and an optical display layer which covers at least part of the recording layer and produces a visible image of the record pattern. As shown a ferrite recording layer I is backed by a container of magnetizable particles in suspension in liquid or gas, the outer wall 5 having apertures 5b so that the particles 6a form a visible image of the magnetically recorded pattern.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1124772A GB1427517A (en) | 1972-03-10 | 1972-03-10 | Machine-readable recording cards or sheets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1124772A GB1427517A (en) | 1972-03-10 | 1972-03-10 | Machine-readable recording cards or sheets |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1427517A true GB1427517A (en) | 1976-03-10 |
Family
ID=9982714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1124772A Expired GB1427517A (en) | 1972-03-10 | 1972-03-10 | Machine-readable recording cards or sheets |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1427517A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2415341A1 (en) * | 1978-01-24 | 1979-08-17 | Crouzet Sa | MAGNETIC DISPLAY TICKET |
EP0019513A1 (en) * | 1979-05-10 | 1980-11-26 | L.C.C.-C.I.C.E. - Compagnie Europeenne De Composants Electroniques | Device for the visualisation of electric signals recorded on a magnetic medium |
-
1972
- 1972-03-10 GB GB1124772A patent/GB1427517A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2415341A1 (en) * | 1978-01-24 | 1979-08-17 | Crouzet Sa | MAGNETIC DISPLAY TICKET |
EP0019513A1 (en) * | 1979-05-10 | 1980-11-26 | L.C.C.-C.I.C.E. - Compagnie Europeenne De Composants Electroniques | Device for the visualisation of electric signals recorded on a magnetic medium |
FR2456352A1 (en) * | 1979-05-10 | 1980-12-05 | Europ Composants Electron | DEVICE FOR VISUALIZING ELECTRIC SIGNALS RECORDED ON MAGNETIC MEDIA |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |