Close-Range Type Systems TRIZ Cases
- Visible Light Communication Data Transmission Ratio Indicator
A VLC receiver determines data transmission ratios and generates visible light signals with varying intensity or color to display progress.
- Visible Light Communication Duty Cycle Encoding
A visible light communication encoding system selects a duty cycle based on desired brightness to transmit data via modulated light signals.
- Infrared Transmitter Bias Current Control
Dynamic bias adjustment reduces power consumption in infrared transmitters by varying current according to channel count.
- Mobile Device Staging via Visible Light Communication
Visible light communication transmits configuration data to eliminate manual input delays and reduce carrier fees during mobile unit staging.
- Invisible Light Communication Using Visible Light Camera
Visible light camera captures invisible light signals by synchronizing pulse rate with frame rate, eliminating specialized hardware costs.
- Free-Space Optical Communication Burst Error Reduction
Network coding generates redundant data in free-space optical links, restoring attenuated packets and reducing burst errors from atmospheric fluctuations.
- Optical Authentication via Mobile Flash Light
Smart mobile flash transmits authentication data through light signals, preventing unauthorized access when devices are lost.
- Optical Wireless Transmitter MAC PHY Segmentation
A single media access control layer manages multiple physical layers to drive distinct light sources for optical wireless communication.
- Encoded Light Signal Indoor Location System
Modulated light pulses transmit encoded identifiers, enabling computing devices to determine precise indoor positions without relying on GPS signals.
- LED Driving Method for Brightness and Data Communication
A light source driving method varies duty cycle to control brightness while using coded switching to transmit data.
- Illumination Light Source for Secure Device Authentication
Modulated optical pulses from an illumination light source transmit configuration data, bypassing complex pairing procedures required by radio frequency links.
- Image Sensor Pixel Segmentation for Visible Light Communication
Segmenting image sensor logic pixels into separate readout units increases signal diversity gain, compensating for performance drops in mobile scenarios.
- DC-Free Coded Light Modulation for Flicker Reduction
A light driver maps source symbols to composite channel symbols with zero DC power spectral density.
- Rotatable Optical Transceiver With Offset Receiver Axis
A rotatable optical transceiver positions the receiver on the rotation axis while placing the transmitter adjacent to it, enabling uninterrupted data links during movement.
- USB Dongle Optical Transceiver for Secure Data Transmission
A USB dongle optical transceiver uses light emitting diodes to transmit data signals via pulsed visible light communication.
- Pico Projector VLC Modulation for Color and Power Trade-offs
High-frequency LED modulation with duty cycle control boosts communication speed while conserving power and maintaining color stability.
- LED Driver VLC Modulation with Dynamic Current Profiles
An LED driver modulates current profiles to transmit variable length VLC codes through intensity variations.
- VLC Light Source ID Code Change via Mobile Intermediary
A mobile intermediary relays server commands to a light source driver, enabling rolling code synchronization without direct server connections.
- Active Optical Cable Connector Wireless Signal Transmission
An active optical cable connector replaces copper wires with a UWB module for control signals, simplifying the structure and reducing manufacturing complexity.