TIME OF FLIGHT-BASED SYSTEMS OPERABLE FOR AMBIENT LIGHT AND DISTANCE OR PROXIMITY MEASUREMENTS
First Claim
1. A time-of-flight-based optoelectronic system comprising:
- at least one active demodulation detection pixel operable to detect a first particular wavelength, and being further operable to generate amplitude data of the first particular wavelength;
at least one spurious reflection detection pixel operable to detect a second particular wavelength, and being further operable to generate amplitude data of the second particular wavelength;
outputs of the at least one active demodulation detection pixel and the at least one spurious reflection detection pixel being communicatively coupled to a computational device;
the computational device including a computer storage medium storing spectrum data that corresponds, respectively, to a plurality of different ambient light source types, wherein the amplitude data of the first particular wavelength and the amplitude data of the second particular wavelength are associated with spectrum data of a particular one of the ambient light source types,wherein the computational device is operable to determine an ambient lighting condition based on the amplitude data of the first particular wavelength, the amplitude data of the second particular wavelength and the spectrum data of the particular one of the ambient light source types.
2 Assignments
0 Petitions
Accused Products
Abstract
A time of flight-based system is operable for ambient light measurements. A method of operation includes detecting, in at least one active demodulation detection pixel, a first particular wavelength and generating amplitude data of the first particular wavelength; and detecting, in at least one spurious reflection detection pixel, a second particular wavelength and generating amplitude data of the second particular wavelength. In a computational device that stores spectrum data corresponding respectively to a plurality of different ambient light source types, an ambient lighting condition is determined based on the amplitude data of the first particular wavelength, the amplitude data of the second particular wavelength and the spectrum data of a particular one of the ambient light source types associated with the amplitude data of the first particular wavelength and the amplitude data of the second particular wavelength.
-
Citations
16 Claims
-
1. A time-of-flight-based optoelectronic system comprising:
-
at least one active demodulation detection pixel operable to detect a first particular wavelength, and being further operable to generate amplitude data of the first particular wavelength; at least one spurious reflection detection pixel operable to detect a second particular wavelength, and being further operable to generate amplitude data of the second particular wavelength; outputs of the at least one active demodulation detection pixel and the at least one spurious reflection detection pixel being communicatively coupled to a computational device; the computational device including a computer storage medium storing spectrum data that corresponds, respectively, to a plurality of different ambient light source types, wherein the amplitude data of the first particular wavelength and the amplitude data of the second particular wavelength are associated with spectrum data of a particular one of the ambient light source types, wherein the computational device is operable to determine an ambient lighting condition based on the amplitude data of the first particular wavelength, the amplitude data of the second particular wavelength and the spectrum data of the particular one of the ambient light source types. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method comprising:
-
detecting, in at least one active demodulation detection pixel, a first particular wavelength and generating amplitude data of the first particular wavelength; detecting, in at least one spurious reflection detection pixel, a second particular wavelength and generating amplitude data of the second particular wavelength; determining, in a computational device that stores spectrum data corresponding respectively to a plurality of different ambient light source types, an ambient lighting condition based on the amplitude data of the first particular wavelength, the amplitude data of the second particular wavelength and the spectrum data of a particular one of the ambient light source types associated with the amplitude data of the first particular wavelength and the amplitude data of the second particular wavelength. - View Dependent Claims (12, 13, 14, 15, 16)
-
Specification