Portable Microphone Measuring Device Dual ADC Channels

The patent divides the measurement system into two separate measurement channels, each with its own analog-to-digital converter. The first channel is optimized for high amplitude signals while the second channel is optimized for low amplitude signals. This segmentation allows the device to accurately measure signals across a wide dynamic range without requiring a single complex converter that would handle all signal levels.

The patent adds a second measurement dimension by introducing a parallel measurement channel with different amplification characteristics. Instead of trying to make a single converter handle all dynamic ranges, the system creates an additional measurement pathway that complements the first channel, effectively expanding the measurable dynamic range through dimensional addition.

The patent applies local quality by optimizing each measurement channel for its specific signal range. The first channel uses conditioning appropriate for high amplitude signals while the second channel uses conditioning optimized for low amplitude signals. This localized optimization allows precise measurement in each range without requiring expensive, high-power components that would be needed if a single channel tried to handle all ranges.

The patent uses partial action by implementing only the necessary signal conditioning for each specific measurement range. Instead of over-engineering a single channel to handle all possible signal levels with excessive conditioning, the system implements separate channels with appropriate partial conditioning for their respective ranges, reducing overall power consumption while maintaining precision.