Optical Rangefinders TRIZ Cases
- ToF Histogram Circuit with Split-Speed Bit Accumulation
Split low- and high-order histogram bits let ToF receivers match fast TDC output while cutting circuit area and power use.
- Proximity Sensor Crosstalk Compensation With Coarse and Fine Charging
Two-stage charging compensates optical crosstalk so the sensor output tracks the target signal, not disturbing reflections.
- LIDAR ADC Windowed Sampling for Low-Power Distance Sensing
Selective ADC sampling at high-slope signal windows cuts LIDAR power use while preserving accurate phase-based distance estimation.
- Confocal Displacement Measurement with Dynamic Range Reset
Dynamic range resetting around detected peak wavelengths helps confocal displacement measurement avoid false distance processing when reflections are unstable.
- FPGA Time-to-Digital Converter Calibration for Precise LiDAR Ranging
Sequential FPGA delay units calibrate LiDAR time-of-flight measurement to improve ranging precision with lower cost and power.
- Confocal Displacement Sensing With Dynamic Range Reset
Filters reflected-light peaks by a resettable numerical range to measure multilayer or low-reflectivity surfaces more accurately.
- Weighing Chamber Closure Control Using Motion-Derivative Sensing
A differentiated reflection-sensor signal opens the weighing chamber only for approaching pipettes, reducing air disturbance and false triggers.
- Distance Measurement Sampling Rate Adaptation to Reduce Aliasing
A coarse distance estimate sets the sampling rate to cut aliasing and enable mm or sub-mm distance measurement with slower ADCs.
- Distance Measurement Sampling for Aliasing-Resistant Precision
Multiple sampling rates capture shifted aliasing patterns, enabling mm or sub-mm distance measurement with slow ADCs and distorted signals.
- Time-of-Flight Laser Circuitry for Echo Walk Error Correction
Multiple trip-level comparators and gain control correct echo walk error in time-of-flight laser ranging, improving weak-pulse accuracy.
- Background-Suppressed Light Sensor With Critical Spacing Feedback
Direct display of sensing depth and critical spacing helps verify background suppression and secure object detection without external checks.
- Pulse Distance Measurement With Variable Gain Signal Normalization
A delayed pulse and variable gain amplifier normalize return-signal intensity, improving distance accuracy and speed across wide ranges.
- Light Scanner Display for Critical Distance Range Feedback
Multi-zone LED feedback shows set scanning range, critical distance, and safe background masking for reliable object detection.
- Laser Rangefinder Receiver Clamping for Fast Overload Recovery
A photodiode clamp and non-saturating transimpedance amplifier prevent receiver overload and speed pulse recovery in high-power laser rangefinders.
- Pulse Distance Measurement with Variable Gain Signal Normalization
Variable gain amplification and signal delay normalize returned light pulses, improving distance accuracy, speed, and range across signal intensities.