Input/Output For User-Computer Interaction TRIZ Cases

A delta regulator and N-taps averaging keep motion delta output consistent despite dynamic frame rates, stabilizing cursor movement.

Pyroelectric pixels detect head-emitted heat through approach and removal phases, enabling reliable mobile switch actuation despite lighting interference.

Multiple touch sensors on the front, back, and sides let users control separate interface layers with one hand and less visual attention.

Rotation-based gain updates across five virtual audio channels preserve spatial accuracy and improve presence during user movement.

Distinguishes word-tracing gestures from multi-key wiping on touch keyboards to prevent unintended characters and improve text input accuracy.

Direct capacitance sensing on an electrode sheet removes membrane switch interference, improving key identification and touch position output.

Dual neck-mounted microphones detect head direction and route speech to the right call or assistant without manual switching.

A photoelectric rotary knob captures rotation and displacement to deliver precise scrolling, page turning, and zoom on small smart watch screens.

Phase-shifted sinusoidal signals across segmented electrodes create precise, stable tactile textures while reducing user and environmental variation.

A remote access manager inserts key-up states after key-down events to prevent latency-driven repeated keystrokes and preserve typing accuracy.

A three-layer knitted sensor uses carbon fiber yarn to detect touch position and pressure with only two connections, reducing wiring complexity.

Distance-based SLAM landmark compression cuts backchannel load for xR headsets while preserving mapping and tracking in weak connectivity.

Image, depth, and audio sensor fusion helps a near-eye display attenuate sound only when speech is directed at the wearer.

Frequency-orthogonal and phase-shifted capacitive sensing improves low-latency hover, proximity, and pressure detection without contact.

A thin conductive layer turns walls, floors, and furniture into touch controls by detecting sequential or prolonged contact without linked screens.

Curved electrode borders in a wearable audio touch interface expand slide-angle detection, improving gesture recognition without enlarging the contact surface.

Pose-based control lights only visible sources on a tracked peripheral, reducing battery drain while keeping optical tracking brightness uniform.

Sensors detect hand and keyboard position to automatically adjust tilt, reducing typing fatigue across clamshell and external keyboards.

Combining electrical, force, temperature, and vibration cues enables one tactile interface to reproduce sticky, springy, and other hard-to-present sensations.

A curved spring hinge shifts the rotation axis under finger force, helping handheld inputs follow natural finger motion across hand sizes.

Coordinated gesture switch units share status signals to avoid unwanted state changes while enabling hands-free lighting control and visual feedback.

Reordering haptic channels and sending only changed codeword groups cuts bitrate while keeping multichannel haptic latency low.

Finger detection zones and spatial vector tracking capture subtle hand poses, improving VR and AR gesture realism without complex controllers.

Capacitance sensing replaces bulky optical key-depth modules, enabling one keyboard key to output multiple signals with lower cost and less space.

Multiple drive electrodes and a reception electrode create dual-capacitance sensing that separates finger touches from water false triggers.

Liquid egress channels and modular push button assemblies prevent spill damage while simplifying display panel service and replacement.

Sensorized tissue-like pads quantify manual force, helping standardize touch training and improve consistency in therapy protocols.

A tilting palm rest and telescopic, pivoting thumb support adapt the mouse to different hand sizes to reduce strain and cramping.

Predictive analysis adjusts dynamics, envelope extraction, and resonance to preserve bass and transients for richer real-time haptic output.

A magnetometer and capacitive sensor combine in a mouse thumbwheel to add scrolling and touch gestures without extra space or click mechanics.

Multiple proximity sensors expose distance and velocity data through an API, enabling nuanced touchless input beyond binary sensing.

A two-stage drive waveform lets the coil driver track peak voltage better, producing sharper, stronger tactile force on heavy panels.

Stiff support structures flex pressure-detecting paths to sense presses beyond the conductive path area, widening switch range at lower cost.

Passive infrared sensing captures subtle heat-based micro-gestures with low power use, enabling accurate wearable control without magnets or radar.

A constrained shuttle gap lets one button combine precise force sensing with context-dependent haptic feedback and higher force density.

3D spatial audio and filtering help wireless earpieces separate concurrent calls and messages so users can identify and prioritize them.

Pseudo-random LED modulation and polarized filtering enable accurate keystroke detection through thick glass despite ambient light and keypad cross-talk.

Impedance sensing through body-contact electrodes helps wearable devices distinguish intentional gestures from accidental touch input.

Temporarily disabling button input during fingerprint scanning prevents command errors and preserves secure, reliable control in portable devices.

A shared piezo channel with multiplexed switching reads touch input and drives haptic output, cutting microcontroller pin count and circuit complexity.

Booster-channel angle encoding and IMU fusion improve finger-joint measurement precision for accurate 3D virtual keyboard input.

Proximity sensing lets a playback device detect hand waves to snooze alarms or mute audio without button presses, improving groggy-user control.

Two non-contact sensors assign gestures to separate windows, improving multi-window operability without touch input.

Pressure-triggered vibration gives a touch face a push-button-like click, reducing accidental inputs and improving operator comfort.

Wearable muscle-impulse sensing replaces fixed light controls, enabling intuitive multi-user gesture control across larger spaces and in the dark.

A flexing pressure-detecting path on an opposing sheet broadens touch switch range without adding complex films or extra sensors.

Capacitive sensor assemblies replace wear-prone mechanical switches while preserving tactile feedback in compact electronic enclosures.

A spacebar-integrated fingerprint scanner adds secure biometric unlocking to compact mobile devices without needing extra hardware space.

Routing inelastic glove cables through neutral regions avoids tensile strain during finger movement, improving service life and comfort.

3D audio routing separates concurrent calls and messages by ear and position, helping users track speakers and shift focus with gestures.