IP Library Granted Patent US 10,375,794
Granted Patent B2
US 10,375,794 · App. 16/141,778 · Granted Aug 6, 2019

Devices having calibrated LEDs

Inventors: Honglei Wu (South San Francisco, CA); Cornelius O'Sullivan (Mountain View, CA)
Assignee: GOOGLE LLC
H05B33/0869H05B33/0851H05B37/0236G10L15/00G10L15/22G10L2015/223H04R1/028H04R3/00H04R3/005H04R2410/00H05B37/0272
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Quick Facts
Patent No.
US 10,375,794
App. No.
16/141,778
Granted
Aug 6, 2019
Kind
B2
Abstract

The various implementations described herein include methods, devices, and systems for calibrating LED(s). In one aspect, an electronic device includes: (1) a plurality of light emitting diodes (LEDs); (2) one or more processors; and (3) memory storing a plurality of color correction matrices, each color correction matrix of the plurality of color correction matrices: (a) corresponding to an LED of the plurality of LEDs, (b) generated based on a desired color value for the corresponding LED, and (c) scaled to prevent overrange of color values for the corresponding LED; and the memory includes instructions for operating the plurality of LEDs in accordance with the stored plurality of color correction matrices.

Claims (20)

1. An electronic device, comprising:

a plurality of light emitting diodes (LEDs);

one or more processors; and

memory storing a plurality of color correction matrices, each color correction matrix of the plurality of color correction matrices:

corresponding to an LED of the plurality of LEDs,

generated based on a desired color value for the corresponding LED, and

scaled to prevent overrange of color values for the corresponding LED;

wherein the memory includes instructions for operating the plurality of LEDs in accordance with the stored plurality of color correction matrices.

2. The electronic device of claim 1 , wherein the instructions for operating the plurality of LEDs includes settings for one or more operating parameters of each LED of the plurality of LEDs.

3. The electronic device of claim 2 , wherein the one or more operating parameters includes a brightness parameter.

4. The electronic device of claim 1 , wherein each LED of the plurality of LEDs is a full color LED.

5. The electronic device of claim 1 , wherein each LED of the plurality of LEDs has a red, green, and blue (RGB) values that are modified by application of the corresponding color correction matrix.

6. The electronic device of claim 1 , wherein each LED of the plurality of LEDs is uncalibrated.

7. The electronic device of claim 1 , wherein each LED of the plurality of LEDs is configured to output light having one or more color components of a plurality of color components; and

wherein the plurality of color correction matrices includes a color correction matrix corresponding to each color component of the one or more color components.

8. The electronic device of claim 1 , wherein the electronic device is a voice-activated device.

9. The electronic device of claim 1 , wherein the memory stores one or more applications, the one or more applications including instructions to operate the plurality of LEDs in conjunction with the plurality of color correction matrices.

10. The electronic device of claim 9 , wherein the instructions to operate the plurality of LEDs includes instructions regarding one or more of: illumination duration, pulse rate, duty cycle, color sequence, and brightness.

11. The electronic device of claim 1 , wherein the memory stores instructions for operating the plurality of LEDs in conjunction with the plurality of color correction matrices in accordance with a color design language.

12. The electronic device of claim 1 , wherein the electronic device is configured to relay status of the electronic device via the plurality of LEDs operating in conjunction with the plurality of color correction matrices.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 14, 2020
From: WU, HONGLEI; O'SULLIVAN, CORNELIUS
To: GOOGLE INC.
Reel/Frame 054638/0587 →
CHANGE OF NAME Recorded Dec 14, 2020
From: GOOGLE INC.
To: GOOGLE LLC
Reel/Frame 054749/0215 →
Continuity (3)
Continuation 15717751 · Sep 27, 2017
Provisional Application 62403639 · Oct 3, 2016
Related Publication 20190029094A1 · Jan 24, 2019