Concentric segment optical transducers reduce multi-access interference in Li-Fi networks, enhancing data transfer speeds and connection stability.
A VLC signal processing method identifies pixel elements receiving detectable light to limit subsequent frame generation and reduce power consumption.
A visible light signal generating method modulates luminance to transmit data via alternating brightness levels.
A method using constant envelope modulation to receive optical signals from multiple nodes for location and data extraction.
Optical transceivers replace RF wiring with visible light channels, eliminating avionics interference and installation costs.
Miniaturized wireless neural recording mote uses optical receivers to convert near-infrared light into electrical power for implanted devices.
A laser receiver uses an acceleration sensor and photo sensor to compute movement direction relative to a laser beam for precise localization.
An infrared receiver detects environmental noise levels to trigger adaptive signal adjustments, mitigating interference from spurious sources.
A receiver device decodes light-based digital messages by applying a length-preserving moving average to the received signal.
Low shunt resistance prevents saturation in high ambient light, maintaining stable signal-to-noise ratio for reliable Li-Fi communication.
A VLC preamble sequence segments clock synchronization and topology identification into distinct patterns to maintain receiver visibility.
Electro-optical sensors extract communication data from light to eliminate external ports, preventing water ingress and skin allergies in wearables.
A laser emitter transmits optical signals through free air to a photodiode receiver via a bandpass filter.
An opaque housing isolates a light receiver to capture flicker codes, eliminating manual entry errors and preventing unauthorized observation.
A LiFi node transfers data signals from an infrared source to a visible light source for illumination.
Orthogonal polarization plates modulate and demodulate optical signals to eliminate interference between parallel transmission channels.
A communication device uses multi-frequency light emitters and braille cells to convert input data into visual and tactile signals.
Segmenting OFDM signals into unclipped and clipped portions allows higher modulation indices while preserving signal integrity.
Light sensors detect identifiers to verify physical presence, preventing unauthorized remote group access.
Geometry-based stochastic method models indoor optical wireless channels across infrared, visible, and ultraviolet bands.
Adaptive biasing and scaling optimize signal-to-noise ratio gain while eliminating the need for additional scaling factor signaling overhead.
Electronic devices encode data into temporal and spatial light patterns emitted by LEDs.
A video distribution system decodes visible light communication signals embedded in camera-captured frames to manage content rights.
Tunable LEDs at point of sale terminals emit non-visible wavelengths detected by optical sensors to notify staff, reducing manual monitoring time.
Operation terminal captures optical identifiers from lighting devices to map icons with communication addresses, eliminating manual address entry errors.
A lighting device transmits data subsets embedded in illumination light using pulse width modulation.
Tiled optical transmitters combine focused light beams to deliver high-bandwidth communication over long distances.
Segmenting LED operation into alternating data and energy intervals prevents flickering by compensating for light fluctuations during transmission.
Segmenting interference functions reduces processing load at the central unit while maintaining robustness against control failures.
Intelligent lighting devices exchange identification packets via visual light communication to autonomously determine neighbor relationships.
A workwear light receiver detects identification signals from lighting devices to enable precise worker tracking.
A visible light communication lock device transmits information via modulated luminance and color signals from multiple transmitting devices.
Laser beams induce optical breakdown in air to generate radio frequency signals, eliminating vulnerability of physical antennas to weather and kinetic attacks.
A visible light communication device modulates LED intensity using arbitrary time slots to transmit signals.
Multi-frequency backlight modulation transmits optical data while maintaining image brightness and reducing power consumption.
An auxiliary scheduler subsystem reserves time margins in allocated slots to manage synchronization uncertainty.
An infrared trigger signal guides user alignment for a Li-Fi link, reducing setup complexity and power consumption.
Luminance modulation encodes signals in brightness transitions, resolving device compatibility constraints while maintaining constant illumination.
A liquid crystal board modulates outside light to transmit signals without dedicated emitters.
A solid-state lighting fixture uses wavelength diversity to modulate light from separate LED groups for visible light communication.
Orthogonal polarization transmission and differential amplification reject optical noise interference to maintain low bit error rates under bright conditions.
A window mounted wireless gateway system uses optical transmission to relay signals between outdoor and indoor units.
A tunable filter grating adjusts its refractive index via temperature control to direct specific optical beams toward a detector in free-space communication links.
Multi-stage amplitude modulation encodes visible light signals using multiple electrical levels, eliminating flashing delay synchronization errors.
Wireless identifiers synchronize with visual or audio emission patterns to resolve identification reliability issues in dense IoT environments.
A hybrid aerial network system combines free space optical and radio frequency transceivers for simultaneous data transmission.
Optical wireless links replace hardwired connections to eliminate electromagnetic interference and improve device mobility in cockpit environments.
An optical signal receiver switches between continuous and intermittent reception modes to manage energy usage.