EP0340033A3
A method of describing a color in a triaxial planar vector color space
Abstract
The present invention relates to a method of describing a color in a newly defined trigonal planar vector color space, said description utilizing an achromatic component and only two chromatic components. This method is useful for describing colors in a way which more closely relates to human color perception than other color spaces and is particularly useful for color reproduction by the photographic, printing, and electrophotographic processes.
Term
Term ended
Projected expiry passed 28 April 2009, 17.4 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during |
|---|---|---|---|---|
| GB2202708A | Cites | United Kingdom | AP | Search report |
| FR2468111A1 | Cites | France | A | Search report |
7 members in 5 offices
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 187831 | United States of America | – | |
| 18783188 | United States of America | A | |
| 18783188 | United States of America | A | |
| US19880187831 | – | – | – |
Members7
| Document | Office | Kind | |
|---|---|---|---|
| IL89776A0 | Israel | A0 | |
| EP0340033A2 | European Patent Office (EPO) | A2 | |
| US4884130A | United States of America | A | |
| JPH01313724A | Japan | A | |
| EP0340033A3This record | European Patent Office (EPO) | A3 | |
| IL89776A | Israel | A | |
| CA1312290C | Canada | C |
10 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application deemed to be withdrawnWithdrawn18D | 18D | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWNSTAA | STAA | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOS IGRAGRAH | GRAH | |
| Despatch of communication of intention to grantORIGINAL CODE: EPIDOS AGRAGRAG | GRAG | |
| First examination report despatched17Q | 17Q | |
| Designated contracting statesAK | AK | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 0340033
- Publication, DOCDB
- 0340033
- Publication, EPODOC
- EP0340033
- Application
- 304313
- Application, DOCDB
- 89304313
- Application, EPODOC
- EP19890304313
Titles3
- English
- A method of describing a color in a triaxial planar vector color space
- German
- Verfahren zur Beschreibung einer Farbe in einem dreiaxialen planaren Vektorraum der Farbvalenzen
- French
- Procédé pour la description d'une couleur dans un espace de couleurs en vecteurs triaxiaux plans
Classification
- CPC, 2
- H04N1/6005
- H04N1/60
- IPC, 5
- G03B27 73
- G01J3 50
- G03F3 08
- G06T1 00
- H04N1 60
Designated states4
- Contracting states, 4
- Germany
- France
- United Kingdom
- Italy