GB8726883D0 - Data carriers - Google Patents
Data carriersInfo
- Publication number
- GB8726883D0 GB8726883D0 GB878726883A GB8726883A GB8726883D0 GB 8726883 D0 GB8726883 D0 GB 8726883D0 GB 878726883 A GB878726883 A GB 878726883A GB 8726883 A GB8726883 A GB 8726883A GB 8726883 D0 GB8726883 D0 GB 8726883D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- data carriers
- carriers
- data
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06K19/16—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 a hologram or diffraction grating
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
- G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
- G03H1/04—Processes or apparatus for producing holograms
- G03H1/0402—Recording geometries or arrangements
- G03H1/0408—Total internal reflection [TIR] holograms, e.g. edge lit or substrate mode holograms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Holo Graphy (AREA)
- Credit Cards Or The Like (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878726883A GB8726883D0 (en) | 1987-11-17 | 1987-11-17 | Data carriers |
| GB8826754A GB2212445B (en) | 1987-11-17 | 1988-11-16 | Data carriers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878726883A GB8726883D0 (en) | 1987-11-17 | 1987-11-17 | Data carriers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB8726883D0 true GB8726883D0 (en) | 1987-12-23 |
Family
ID=10627089
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB878726883A Pending GB8726883D0 (en) | 1987-11-17 | 1987-11-17 | Data carriers |
| GB8826754A Expired - Fee Related GB2212445B (en) | 1987-11-17 | 1988-11-16 | Data carriers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8826754A Expired - Fee Related GB2212445B (en) | 1987-11-17 | 1988-11-16 | Data carriers |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8726883D0 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2561186B2 (en) * | 1991-09-11 | 1996-12-04 | 日本発条株式会社 | Object identification structure |
| US5412195A (en) * | 1992-12-29 | 1995-05-02 | Hughes Aircraft Company | High security spectral code strip |
| AU685830B2 (en) * | 1993-10-06 | 1998-01-29 | 3M Australia Pty Limited | Security reader for automatic detection of tampering and alteration |
| US6019287A (en) | 1993-10-06 | 2000-02-01 | 3M Innovative Properties Company | Security reader for automatic detection of tampering and alteration |
| US5591527A (en) * | 1994-11-02 | 1997-01-07 | Minnesota Mining And Manufacturing Company | Optical security articles and methods for making same |
| GB0015871D0 (en) | 2000-06-28 | 2000-08-23 | Rue De Int Ltd | A security device |
| GB0030675D0 (en) | 2000-12-15 | 2001-01-31 | Rue De Int Ltd | Methods of creating high efficiency diffuse back-reflectors based on embossed surface relief |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3887742A (en) * | 1972-04-13 | 1975-06-03 | Richard E Reinnagel | Copy resistant documents |
-
1987
- 1987-11-17 GB GB878726883A patent/GB8726883D0/en active Pending
-
1988
- 1988-11-16 GB GB8826754A patent/GB2212445B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB2212445A (en) | 1989-07-26 |
| GB2212445B (en) | 1991-09-18 |
| GB8826754D0 (en) | 1988-12-21 |
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