Paper-Money Testing Devices TRIZ Cases

Single-sensor authentication uses time-averaged intensity ratios from two luminescent areas to eliminate spectral analysis complexity.

A smartphone app verifies luminescent security features by capturing decaying phosphor signals after flash excitation.

Infrared sensor detects thermal radiation from heated banknotes to distinguish repair bills from folded ones, resolving thickness detection ambiguity.

A mobile phone captures unexcited and excited images of a photochromic security feature to verify authenticity.

Periodic reverse rotation redistributes angularly stacked coins, ensuring reliable reception and maximizing retaining bowl capacity.

A sheet identification apparatus divides image patterns into weighted areas to determine results through logical combination.

Image processing generates unique object fingerprints from random surface features for secure verification.

One foreign object sensor monitors the media path to control both shutters, reducing part count while preventing bill jams between them.

Tunable CuInZnSeS quantum dots create distinct photoluminescence lifetimes to resolve authentication equipment cost constraints.

A decentralized identity document verification system uses digital fingerprint comparison to authenticate scanned documents without storing sensitive personal data.

Luminescent emissive layers illuminate non-luminescent transmissive halftones, resolving authentication security complexity through distinct lighting responses.

Mobile document image capture system applies edge detection and geometric correction to optimize visual data quality before transmission.

Laser engraving produces achromatic security elements with matte appearance, eliminating rainbow interference while ensuring counterfeit resistance.

A method verifies parallax holograms by comparing target identifier positions against a digital model using portable cameras.

A security element uses a thin optical effect layer to cover structures that reflect moving image motifs for visual verification.

A security document uses structural color inks to produce uniform visual impressions under specific environmental conditions.

Segmenting physical cards from digital databases allows personal data updates without altering the document, preserving integrity while maintaining currency.

A light-emitting medium uses selective transmission layers to enable distinct fluorescence under different non-visible wavelengths.

A particulate composition with multiple crystalline phases emits distinct spectra and decay rates under excitation.

A magnetic sensor device uses a magnetoresistance effect element to detect hard magnetic materials via leakage magnetic fields from yokes.

A security element integrates a color-shifting region with structures that reflect an image motif to produce a moving image effect.

Ultrasonic imaging quantifies media thickness to categorize defects, resolving the trade-off between automation extent and measurement precision.

Staggered capacitive micromechanical ultrasonic transducers emit and receive short pulses to examine value documents during transport.

A rod light guide illuminating device uses segmented reflection faces to emit light across a wider effective area.

A security element uses distinct structural areas to generate variable movement images when tilted along different axes.

Mobile devices capture and binarize financial document images to eliminate manual entry errors and reduce transaction time.

A document processing device images currency bills and deposit slips at different speeds to extract declared amounts.

A security element uses a single ink with magnetic materials of different coercivities to create unique coding.

Pulsed LED illumination reduces thermal problems and energy consumption while maintaining detection capability for high opacity banknotes.

Doping material in polymer threads produces distinct radiation spectra for machine-readable authentication.

A security element uses structures to create a moving image motif combined with an optical effect layer for dynamic visual verification.

A personalized see-through security feature uses partial images on opposite sides of a semi-transparent layer to form a complete image.

Laser ablation creates metamaterial patterns in conductive layers to resolve thread positioning inconsistencies and enhance security document reliability.

A media scanner uses optical tracking sensors to dynamically assemble images of items passing through a tube.

Dynamic thresholds based on estimated bill counts prevent erroneous returns of bills containing metallic components.

A banknote rolling-out control apparatus adjusts the extraction speed based on stored duration to maintain smooth operation.

A class reference image aggregates pixel values from multiple reference documents to generate standardized data records for automated document processing.

A sheet identification system uses a standard identifier and an optional attachment member to expand detection capabilities.