Patent · US Active

Apparatus for the classification of observers according to their visual characteristics

US8565521B2 · kind B2 · utility

1Cited by

5References

7Claims

0Family size

Assignee

Thomson Licensing · FR

Inventors

Abhijit Sarkar · Midland, US
Laurent Blonde · Yutz, FR
Patrick Morvan · Laillé, FR
Marine Le Breton · Antony, FR

Key dates

Filing date	Apr 8, 2011
Grant date	Oct 22, 2013
Priority date	—
Expiry date	Apr 8, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG01J3/465
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Preferably, seven classes of observers are defined, according to different sets of Color Matching Functions. By displaying specific color patches of a classification chart using color display devices having different sets of primaries, and by asking an actual observer to compare his perception of the same color as displayed on each color display device, the method allows assigning said observer his specific class. It is proposed a specific apparatus to implement this method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.