U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and system for selecting a previous color match from a set of previous color matches that best matches a color standard

Patent 5841421 Issued on November 24, 1998. Estimated Expiration Date: Icon_subject December 18, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Methods for determining the proper coloring for a tooth replica
Patent #: 4654794
Issued on: 03/31/1987
Inventor: O'Brien

Color match predictability system and method
Patent #: 4887906
Issued on: 12/19/1989
Inventor: Koehler

Optical information recording medium, information recording method and optical information recording system using the medium
Patent #: 5002812
Issued on: 03/26/1991
Inventor: Umehara, et al.

Rendering apparatus, multispectral image scanner, and three-dimensional automatic gonio-spectrophotometer
Patent #: 5502799
Issued on: 03/26/1996
Inventor: Tsuji, et al.

Method and system for formulating a color match Patent #: 5668633
Issued on: 09/16/1997
Inventor: Cheetam, et al.

Inventors

Application

No. 574013 filed on 12/18/1995

US Classes:

345/593, Color selection356/402, BY SHADE OR COLOR356/425With color determination by light intensity comparison

Examiners

Primary: Mengistu, Amare

Attorney, Agent or Firm

International Class

G01J 003/50

Abstract

The present invention discloses a method and system for selecting a previously used color match from a plurality of previously used color matches that best matches a color standard. In the present invention, each of the plurality of previously used matches are identified with a spectral reflectance and a color formula. The present invention includes measuring a color spectrum and spectral reflectance of the color standard. The spectral reflectance of each of the plurality of the previously used color matches are then processed. The processed plurality of previously used color matches are searched for a set of previous color matches that have a high probability of being adapted to attain the color spectrum and spectral reflectance of the color standard. Next, a color match that provides the best match with the color of the standard is determined from the set of previous color matches. The formula of the best match is used to reproduce the color of the standard. The color formula of the best match is adapted until there is an acceptable match with the color of the standard.

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