Wave Based Measurement Systems TRIZ Cases

A switched capacitor powers long ultrasound pushing pulses only in elasticity mode, preventing power droop while preserving frame rate in other modes.

A switched capacitor supplies stable power for ultrasound elasticity pushing pulses, preventing power droop and frame-rate loss.

A wideband-plus-narrowband filter bank cuts radar signal detection delay while preserving broad frequency coverage and limiting hardware cost.

A temperature-driven variable impedance network stabilizes amplifier gain and improves level control across wide temperature changes.

Reflected-signal amplitude and phase are used to detect standing waves and recalibrate PA voltage and bias before mismatch causes damage.

Sequential access memory and per-channel control reduce routing complexity and memory use while preserving high-resolution transducer waveforms.

Dynamic current and feedback control in an ultrasound TIA lowers noise floor, preserves linearity, and cuts power use during signal acquisition.

Threshold-based switching between primary and redundant circuit elements extends semiconductor operation and maintains reliable function.

A replica cascode steers current in disabled amplifier branches, limiting voltage stress while enabling fast radar power-level switching.

A negative feedback loop shifts and amplifies the reference path to suppress DC dominance and improve CW radar phase demodulation accuracy.

Two FFT processing channels recover all needed spectrum points while avoiding wasted inverse transform work, reducing filtering latency and memory use.

Two offset FFT channels recover all spectrum points, cutting redundant filtering operations and reducing memory needs by 40%.

Offset-voltage compensation extends VCO tuning below charge-pump limits, enabling one oscillator to switch across dual radar bands.

Multiple preset reverse bias sources let a LiDAR receiver switch gain quickly, improving dynamic range while limiting saturation distortion.

An RF transposed delay line uses IF delay filtering and a phase noise suppression loop to replace bulky optical fiber and improve stability.

A sliding integration window with per-window DC offset correction reduces blind zones and saturation in short-range pulsed-Doppler radar.

A GaNFET drain-switching circuit sharpens RF pulse edges and cuts heat, noise, and idle power in pulsed amplifiers.

An on-chip active oscillator derives wireless LO signals from a crystal-less reference clock, reducing BOM cost and PCB area.

A switched capacitor supports long ultrasound pushing pulses without power droop, preserving elasticity measurement accuracy and transmit agility.

Dynamic loop filtering and divisor control help a millimeter-wave PLL improve chirp linearity while cutting retrace time, overshoot, and noise.

Controlling the frequency multiplier core supply adjusts output power with low delay while suppressing oscillator signal leakage.

A thin LiTaO3 layer on an acoustic reflector enables slab-mode resonance above 5 GHz while suppressing spurious emissions.

High-speed switches and shift registers generate LiDAR pseudo-random patterns without large memory, preserving resolution and sensitivity.

Arccosine-based phase error estimation enables lookup-table pre-distortion, improving radar phase rotator accuracy without complex calibration hardware.

A stored-and-restored oscillator control signal cuts PLL chirp overshoot and retrace time while preserving ramp linearity and noise filtering.

A TGC circuit varies amplifier integration time to boost deeper ultrasound echoes and keep equally echogenic tissues consistent across depth.

Digital temperature sensing adjusts VCO bias between chirps to limit phase noise and preserve FMCW radar chirp linearity across wide temperatures.

A damping compensation pulse cancels capacitive-loading artifacts in contrast-enhanced ultrasound, improving pulse cancellation and image quality.

Multiple filter paths with distance-based coefficient selection compensate frequency response and IQ imbalance while cutting close-range radar simulation time.

Stored phase error values from arccosine estimation enable pre-distortion, improving radar phase rotation accuracy without complex real-time calibration.

Dual FFT channels split large FIR filtering to cut operations and latency while preserving pulse compression performance.

A temperature-controlled impedance path stabilizes amplifier gain in automotive radar transceivers while limiting temperature-driven level drift.

Dynamic bias current control in an ultrasound TIA cuts power use while preserving low noise and linear amplification during signal acquisition.

UMOP feature extraction and unsupervised clustering help distinguish agile radar emitters quickly, even when waveform parameters overlap.

A fixed-impedance network lets an ultrasound TGC circuit vary gain while lowering noise and power use across operating conditions.

An offset-adjusted PLL loop filter predicts phase error to cut ramp settling time and reduce overshoot in radar frequency ramps.

Channelized compressive sensing and machine learning reduce noise folding and processing load for wideband RF emitter detection and identification.

A single crystal, PLL, and divider generate stable Tx/Rx frequencies with precise delta control for accurate tank level measurement.

An offset-voltage source overcomes charge-pump minimum-voltage limits, letting one VCO switch across radar bands with stable phase noise.

Alternating an indicator and receiver element enables touch sensing and remote command reception with fewer optoelectric components.

A pseudo signal with a suppressed main lobe removes pulse-compression side lobes while preserving main lobe S/N ratio and signal integrity.

Opposing phase shifts across interleaved antenna sub-arrays soften pulse edges, cutting spurious emissions and heat dissipation.

Edge detection counts SPAD pulse transitions between clock signals to avoid timing delay from elongated pulse widths and improve light sensing precision.

Splitting FFT filtering into even and odd spectrum channels cuts wasted points, lowers memory use, and eases long impulse-response processing.

An ultra-fast GaNFET H-bridge pulses RF amplifier drain supply to reduce waste heat, current draw, and inter-pulse noise.

A switched voltage source and parallel filter capacitors reset chirp frequency quickly while avoiding the phase noise penalty of wider PLL bandwidth.

A modeled digitally controlled oscillator helps a digital PLL track variable frequency changes quickly without sacrificing loop stability.

A clipped-waveform timing circuit converts transient edges into delayed pulses and output current for real-time picosecond measurement without oscilloscope limits.

A switched voltage source and parallel filter capacitors reset PLL chirps quickly while limiting phase noise in FMCW radar.

A controlled integration-time TGC amplifier evens ultrasound signal gain across depth while reducing circuit stages and power use.