USB Dongle Optical Transceiver for Secure Data Transmission
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Solution Overview
Problem
Existing communication technologies using radiofrequency transmissions face security concerns, interference, and regulatory issues, while traditional lighting systems are not secure or efficient for data transmission.
Innovation Solution
The use of light emitting diodes (LEDs) for encrypted pulsed light communication systems that enable secure and efficient data transfer through visible light, utilizing a USB dongle or key device to facilitate optical communication between client and host devices, and integrating LED lighting with power line communication technology to provide internet access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If radiofrequency transmissions are used for communication, then wireless communication capability is provided, but security is compromised and interference is susceptible
Solution Approach 1:
The patent replaces radiofrequency electromagnetic wave transmission with visible light transmission using LEDs. The light-based communication system transmits data through optical signals that are invisible to human eyes, providing secure communication while maintaining wireless capability. This substitution of transmission medium resolves the security and interference issues inherent in RF systems.
2Adaptability or versatility
If radiofrequency transmissions are used for communication, then wireless communication capability is provided, but regulatory control and interference susceptibility increase
Solution Approach 1:
The patent substitutes RF electromagnetic waves with visible light for communication transmission. The LED-based optical communication system operates in the visible spectrum, which is not regulated by the FCC, eliminating regulatory constraints. Additionally, light transmission is immune to RF interference and does not produce noise that can interfere with other devices.
3Illumination intensity
If traditional lighting systems are used for data transmission, then lighting function is provided, but security and efficiency for data transmission are insufficient
Solution Approach 1:
The patent makes the lighting system multi-functional by enabling it to perform both illumination and data transmission simultaneously. The LEDs are used to encode data through pulsed light communication while providing general lighting. This universal application resolves the contradiction by allowing the lighting system to serve dual purposes without compromising security or efficiency.
4Adaptability or versatility
If extensive infrastructure is deployed for communication access, then multiple access points are provided, but device complexity and installation cost increase
Solution Approach 1:
The patent enables existing LED lighting infrastructure to serve dual purposes: illumination and communication. By making the lighting system multi-functional, the need for separate communication infrastructure is eliminated. The same LEDs that provide lighting also serve as communication transmitters, reducing device complexity and installation costs while maintaining multiple access points.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a secure, interference-free, and efficient means of data transmission, enabling ubiquitous communication while also serving as a lighting source, with the ability to offer high bandwidth and multiple access points without the need for extensive infrastructure.
Implementation Method 1
light emitting diodes (LEDs) for encrypted pulsed light communication systems
Implementation Method 2
The use of light emitting diodes (LEDs) for encrypted pulsed light communication systems
Implementation Method 3
a photodetector for receiving the transmitted light
Data Source
AI summary
A Universal Serial Bus (USB) key may include an optical transceiver having a USB interface for engagement to an electronic device such as a laptop computer or other USB-configured device. The USB key may include a converter or buffering, isolation, modulation or amplification circuitry. The USB key sends and receives data signals which may be carried upon an optical transmission as generated by an LED light source which in turn is in communication with a host device such as a network processor. The USB key may also include operational amplifiers (op-amps) and transistor amplifiers.