The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 10, 2018

Filed:

Sep. 22, 2015
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Farnaz Agahian, Cupertino, CA (US);

Jiaying Wu, San Jose, CA (US);

Zhang Jia, Santa Clara, CA (US);

Cheng Chen, San Jose, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G01J 3/46 (2006.01); G01J 3/50 (2006.01); G01J 1/42 (2006.01);
U.S. Cl.
CPC ...
G09G 3/2003 (2013.01); G01J 3/463 (2013.01); G01J 3/50 (2013.01); G01J 1/4204 (2013.01); G01J 2003/467 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/0693 (2013.01); G09G 2340/06 (2013.01); G09G 2360/144 (2013.01);
Abstract

An electronic device may be provided with a display mounted in a housing. A color sensing ambient light sensor may measure the color of ambient light. The color sensing ambient light sensor may produce sensor output signals in a device-dependent color space. Control circuitry in the electronic device may convert the sensor output signals from the device-dependent color space to a device-independent color space using a color converting matrix. The color converting matrix may be determined using stored training data. The training data may include color data for different training light sources. The training data may be weighted to selectively control the influence of the training data on the color converting matrix. The training data may be weighted based on a distance between the training color data and a target color in the detected ambient light.


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