Sensors TRIZ Cases

A reflectance photoplethysmography device incorporates an interface layer with a recess between the light source and sensor.

Multiple LiDAR sensors scan foot, knee, and torso planes to detect gait parameters without body attachments.

A breath analysis device measures hydrogen levels in exhaled gas to generate a personalized digestive profile.

A physiological monitor detects artifacts in EEG signals using pre-calculated templates and dynamic thresholds for real-time analysis.

External wireless power activates implant sensors, eliminating internal batteries and reducing device volume.

Processing algorithms identify and replace artifacts in raw time series data to maintain signal quality during extended patient activity.

External detectors monitor electromagnetic interference to remove artifacts from portable MRI images.

Computes signal-to-noise ratio and sensor distance to enable voice control in motion tracking systems.

Segmented C-arm MRI configurations using electropermanent magnets enable surgical access without obstructing imaging quality or field uniformity.

Convolution matching extracts pulse wave signals from radio frequency scanning data for non-invasive health monitoring.

Wireless synchronization apparatus sets real-time clock time zones in medical devices, eliminating manual adjustments and reducing battery drain during storage.

An integrator circuit converts sensor current signals to voltage levels using capacitive accumulation.

A weighing scale with integrated electrodes and processing circuitry collects user cardio-related physiologic data for external service provision.

A 3D visual acuity test method measures brain wave cognitive peaks to determine stereoscopic vision.

Segmented electrocardiogram signals remove ectopic beats to improve heart rate variability accuracy for continuous glucose monitoring.

EEG sensory evoked response analysis cross-correlates neural signals with naturalistic stimuli to assess cognitive function.

Carving substrate grooves with a sewing machine presser foot enables precise liquid metal deposition, reducing fabrication time and complexity.

Partition wall isolates control board heat from measurement board in biological sample device.

Variable matching circuit dynamically adjusts biosensor antenna impedance to resolve environmental reflection noise and maintain measurement precision.

A cloud server keeps state of video workout programs across exercise machines and network devices to synchronize displays.

A PPG signal adjustment method adapts drive current and analog front end gain to keep optical signals within the ADC dynamic range.

Skin electrodes detect electrical signals from nerve activity to identify sleep disorders, replacing invasive polysomnography with a non-invasive approach.

A light emitter sweeps modulation frequencies to generate time series data for non-invasive glucose analysis.

Segmenting frequency bins and ranking peaks by local signal-to-noise ratios distinguishes true heart rate harmonics from motion noise in mobile pulse oximetry.

Segmented reference potential units on a flexible base conform to body shapes, reducing noise interference from long wiring paths.

Low-frequency vibrations promote vasodilation and reduce arterial resistivity, resolving bottlenecks caused by reduced blood flow during capillary sampling.

A wearable ABTT system measures and modifies skin surface temperature to communicate directly with the brain's thermal center.

A medical telemetry system uses non-contact communication to read connection information and store it for automatic biological signal reception.

Expanding echo time and repetition time to negative intervals reduces measurement error influence on tissue contrast.

Surface electrode system applies continuous voltage pulses to record current variations for pathology detection.

An ear-wearable device uses touch and motion sensors to generate vibration alerts.

Automated MRI system determines consistent section positions across different imaging sequences.

A wrist-worn oximeter acquires photoplethysmography light responses at multiple wavelengths to determine blood oxygen saturation levels.

A computer system calculates local phase distributions in magnetic resonance imaging by extracting tissues and correcting phase wrapping errors.

Reduce computational complexity by limiting waveform comparisons to five or ten relevant substance references instead of large databases.

Injecting test signals into skin measures impedance, calibrating sensors to resolve gesture detection inaccuracies caused by varying user skin properties.

A handheld device uses multispectral optical signals to generate high-resolution three-dimensional images of breast tissue abnormalities.

Interface system converts electrical muscle activity into uterine activity data signals compatible with maternal-fetal monitors.

A fluid collection cartridge with a separable plunger rod assembly enables single-handed arterial blood aspiration.

A compact electrocardiogram measurement apparatus uses an electrode driver to concentrate power line interference current through a single ground electrode.

An electronic call assistant extracts text queries from voice signals to generate custom audio responses based on caller and callee identities.

A game system adjusts gameplay based on actual user sleep patterns rather than strict target schedules.

A diagnostic device modulates light intensity based on pupil area to stimulate the retina without artificial dilation.

Processing device selects optimal imaging angles using tracking quality metrics to generate accurate target images.

A dual-layer conductive pattern uses a malleable first metal and a harder second metal to form sensor electrodes in bio-compatible devices.

Genetically modified opsins allow millisecond-scale neural activity modulation, resolving BOLD fMRI circuit interpretation challenges.

Painful repeated lancing discourages testing; a radial cartridge advances separate lancets and routes blood to unpierced analyte sensors.