Patent ID: 11965991
Assignee: WAYMO LLC
Field: Measurement (Instruments)
Classification: CPC G  B | IPC B  G

Claim 12:
13. The sensor assembly of claim 1, wherein:
the emitter device includes a first emitter element operatively coupled to the first side of the waveguide layer and a second emitter element operatively coupled to a third side of the waveguide layer, the third side being disposed between the first and the second sides;
the detector device includes a first detector element operatively coupled to the second side of the waveguide layer and a second detector element operatively coupled to a fourth side of the waveguide layer, the fourth side being opposite the third side;
the first emitter element is configured to emit the signal of the selected wavelength having the first waveform for propagation along the waveguide pattern;
the second emitter element is configured to emit a second signal of a second selected wavelength having a third waveform for propagation along the waveguide pattern;
the first detector element is configured to receive the signal having the second waveform; and
the second detector element is configured to receive the second signal having a fourth waveform, the fourth waveform being a modified version of the second waveform when an object is disposed along the second surface of the waveguide layer.