US 10,503,248 B1Granted

Selective color sensing for motion tracking

AssigneeFacebook Technologies, LLC

InventorYoungshik Yoon

Life of this patent

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Abstract

A portable device includes one or more optical sensors, one or more light emitters, one or more processors, and memory storing one or more programs. The one or more programs include instructions, which, when executed by the one or more processors, cause the portable device to receive information identifying respective intensities of light, detected by the one or more optical sensors, for a plurality of distinct wavelengths, select a set of one or more distinct wavelengths based on the respective intensities of light for the plurality of distinct wavelengths, and subsequent to selecting the set of one or more distinct wavelengths, initiate the one or more light emitters to emit light of the set of one or more selected wavelengths for indicating a position of the portable device.

Claims20

Dependent claims

A first portable device, comprising:

one or more optical sensors;
one or more light emitters;
one or more processors;
and
memory storing one or more programs, the one or more programs including instructions, which, when executed by the one or more processors, cause the first portable device to:
receive information identifying respective intensities of light, detected by the one or more optical sensors, for a plurality of distinct wavelengths;
select a first set of one or more distinct wavelengths based on the respective intensities of light, detected by the one or more optical sensors, for the plurality of distinct wavelengths, wherein the first set of one or more distinct wavelengths is distinguishable from the light detected by the one or more optical sensors;
and,
subsequent to selecting the first set of one or more distinct wavelengths, initiate the one or more light emitters to emit light of the first set of one or more selected wavelengths for indicating a position of the first portable device.

6 more elements

A method performed at a first portable device including one or more optical sensors, one or more light emitters, one or more processors, the method comprising:

receive information identifying respective intensities of light, detected by the one or more optical sensors, for a plurality of distinct wavelengths;
select a first set of one or more distinct wavelengths based on the respective intensities of light, detected by the one or more optical sensors, for the plurality of distinct wavelengths, wherein the first set of one or more distinct wavelengths is distinguishable from the light detected by the one or more optical sensors;
and,
subsequent to selecting the first set of one or more distinct wavelengths, initiate the one or more light emitters to emit light of the first set of one or more selected wavelengths for indicating a position of the first portable device.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/412,262Filed 14 May 2019 · continuation
Priority: 14 Feb 2017
Granted: 10 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

G06F 3/012
Arrangements for interaction with the human body, e.g. for user immersion in virtual reality: head tracking input arrangements
G06F 3/0325
Detection arrangements using opto-electronic means: using a plurality of light emitters or reflectors or a plurality of detectors forming a…
G06T 7/246
Analysis of motion: using feature-based methods, e.g. the tracking of corners or segments
G06T 7/73
Determining position or orientation of objects or cameras: using feature-based methods

Family

Application15/432,786Parent of this continuation · filed 14 Feb 2017
US 10,338,675 B2Parent of this continuation
US 2018/0232047 A1Published application
US 10,503,248 B1This patent

From the US filing history. Foreign family members aren’t listed.

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