Photometry Using Reference Value TRIZ Cases
- Rapid Sensing Circuit for Early Integration Value Estimation
Estimates final integration counts before full sensing time ends, using count ratios to speed weak-signal readout and multi-channel sensing.
- Infrared Touch Switch Threshold Adjustment Without Manual Calibration
Automatic A/D threshold calculation stabilizes infrared touch switch sensitivity despite hardware and reflectance variation.
- Feedback Output Circuit for Weak Signal Vision Sensing
A feedback converter and boosting circuit amplifies weak photodiode signals for event-based vision output with fewer transistors.
- Adjustable-Gain Power Measurement for Wide-Range Light Signals
Adaptive gain switching with sample-linked calibration improves weak and strong light power measurement across a wide dynamic range.
- Pulsed Optoelectronic Proximity Sensing for Lower Current Draw
Pulse current is reduced when detector signals exceed a threshold, cutting proximity sensor power use without losing sensitivity or range.
- Optical Sensor Calibration Circuit Without Band-Gap Reference
A trimmed current source and charge-balancing ADC replace the band-gap reference to preserve brightness accuracy while cutting IC area and power.
- Optical Module Light Power Monitor Correction With Adaptive Lookup Table
Adaptive reference spacing in a correction table cuts memory use while keeping optical module light power readings fast and precise.
- Infrared Touch Switch Threshold Calibration for Stable Sensitivity
Automatic threshold calculation from A/D signal maxima and minima stabilizes infrared touch detection without manual calibration or stored settings.