Print Image Acquisition TRIZ Cases

Concurrent subset capacitance measurement reduces manufacturing complexity and sensitivity loss in compact smart card integration.

Segmented light-emitting elements alternate activation cycles to suppress rapid deterioration while maintaining uniform illumination coverage.

A light shielding layer with transmitting holes collimates reflected texture light to image sensors.

Capacitive sensing elements detect finger presence to trigger digital interrupt signals, preventing repeated image acquisitions and reducing energy consumption.

Merges fingerprint recognition sensors with touch panel electrodes on a single substrate to eliminate separate sensor layers and reduce device thickness.

Separated sensor lines in a fingerprint sensor integrated touchscreen device reduce capacitance connected to sensor lines, improving sensitivity.

An infrared-reflective coating prevents photoelectric leakage current from sunlight, maintaining uniform luminance and visibility in electronic devices.

Capacitive sensing replaces mechanical buttons to distinguish touch and press events via metric thresholds, eliminating moving parts for improved durability.

A fingerprint sensor removes the filter base material to shorten the optical path and reduce device thickness.

Processor detects input axis and aligns it with a reference direction, resolving the contradiction between high identification accuracy and ease of operation.

Constant current biasing stabilizes the source follower output, eliminating electrical characteristic drift that distorts sensing voltages and reduces accuracy.

A capacitive fingerprint sensor uses an electrical isolation wall to separate the sensing pad from circuitry.

A fingerprint readout circuit resets sensor node voltage after the sensing cycle to clear residual charge before touch detection begins.

Switching elements disconnect peripheral wirings from detection circuits to eliminate fringe electric field coupling that causes false touch detections.

Measuring the rate of change in electrode capacitance resolves false inputs caused by manufacturing tolerances and environmental drift.

Segmented measuring elements with distinct potentials constrain electrical interaction to sharpen fingerprint images.

A finger scanner uses contact surfaces at different heights to capture skin deformation patterns via paired sensors.

A transparent support column acts as a collimator to direct light into an under-display fingerprint sensor.

Tracking spatio-temporal signal evolution determines stable capture timing, resolving the trade-off between acquisition speed and measurement precision.

Dividing the detection area into blocks allows the system to verify coverage thresholds, preventing false touches from incomplete scans.

Dynamic exposure adjustment for optical fingerprint modules ensures reliable image acquisition across varying lighting conditions.

A slope portion in the auxiliary structure prevents disconnection and residual conductive material during etching, improving manufacturing yield.

A display panel integrates photosensitive devices in non-light-emitting regions alongside light-emitting devices on a shared substrate.

A learning data generation method selects and matches biometric datasets to create training samples for counterfeit detection systems.

Integrating memory units below sensing electrodes consolidates data storage, reducing layout area and resolving setup time violations.

An ultrasonic fingerprint sensor determines reflected acoustic energy from finger ridges and valleys to identify spoof fingers.

A hybrid capacitive and optical fingerprint sensor system coordinates independent sensing modes for efficient biometric capture.

A capacitance circuit adjusts its electrical conductivity to control detection gain across varying electrode selection periods.

Merging the OLED voltage source with the under-display fingerprint recognition circuit reduces pin count and layout area while minimizing noise interference.

A capacitive fingerprint sensing device uses timing circuitry to generate a pulsed drive signal with controllable delays between consecutive pulses.

Pixel sensing circuitry couples inactive pixels to a voltage reference, shielding the sensing area from interference caused by thick protective covers.