Systems and methods for optical demodulation in a depth-sensing device

A system comprising:

• at least one physical processor;
• and
• physical memory comprising computer-executable instructions that, when executed by the physical processor, cause the physical processor to:
• receive a first electronic signal from a first pixel of an optical sensor, the first electronic signal characterizing a first portion of a reflected light signal having a first phase delay;
• receive a second electronic signal from a second pixel of the optical sensor, the second electronic signal characterizing a second portion of the reflected light signal having a second phase delay that is different than the first phase delay;
• determine phase characteristics of the reflected light signal based on the first electronic signal and the second electronic signal;
• determine a distance between the optical sensor and a surface reflecting the reflected light signal based on the determined phase characteristics;
• and
• generate a three-dimensional image of a scene based on the determined phase characteristics and the received first and second electronic signals from the first and second pixels of the optical sensor.

A non-transitory computer-readable medium comprising one or more computer-executable instructions that, when executed by at least one processor of a computing device, cause the computing device to:

• receive a first electronic signal from a first pixel of an optical sensor, the first electronic signal characterizing a first portion of a reflected light signal having a first phase delay;
• receive a second electronic signal from a second pixel of the optical sensor, the second electronic signal characterizing a second portion of the reflected light signal having a second phase delay that is different than the first phase delay;
• determine phase characteristics of the reflected light signal based on the first electronic signal and the second electronic signal;
• determine a distance between the optical sensor and a surface reflecting the reflected light signal based on the determined phase characteristics;
• and
• generate a three-dimensional image of a scene based on the determined phase characteristics and the received first and second electronic signals from the first and second pixels of the optical sensor.