Free-Space Optical Hub Adapters for Timing and Bandwidth Control
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Solution Overview
Problem
Current wireless communication technologies, such as WiFi, are unable to meet the high data throughput requirements for transferring large multimedia content due to limitations in channel bandwidth and spectrum availability, especially for ultra-high-definition video content, and existing radio transceivers face challenges with multipath interference and limited range.
Innovation Solution
The implementation of a hub apparatus with a free-space-optical (FSO) transmitter and receiver for out-of-band bandwidth management, capable of operating at bit rates exceeding 1 Gbps with timing accuracy better than 50 ps, and utilizing a control signal for timing and bandwidth management to mitigate multipath interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radio frequency wireless communication (WiFi) is used to transfer multimedia content, then wireless connectivity is provided, but data throughput is limited by channel bandwidth and spectrum availability
Solution Approach 1:
The patent replaces radio frequency electromagnetic wave transmission with free-space optical transmission using visible light wavelengths. This substitution transitions from RF-based WiFi communication to optical wireless communication, enabling dramatically higher data throughput (20 Gbps or greater) by utilizing the vastly larger optical spectrum bandwidth compared to the limited radio frequency spectrum.
2Productivity
If higher data rates are achieved using radio transceivers, then throughput increases, but multipath interference and limited range occur
Solution Approach 1:
The patent changes the fundamental transmission parameter from radio frequency to optical frequency (visible light). This parameter change fundamentally alters the propagation characteristics, enabling higher data rates while reducing multipath interference effects through the use of optical wavelengths and associated modulation techniques.
Data Source
AI summary
Disclosed herein are methods, devices, and systems for providing timing and bandwidth management of ultra-wideband, wireless data channels (including radio frequency and wireless optical data channels). According to one embodiment, a hub adapter includes a first high-speed computer peripheral interface, first digital circuitry coupled with the high-speed computer peripheral interface; and a first free-space-optical (FSO) transmitter coupled with the digital circuitry, and a first FSO receiver coupled with the digital circuitry. The first FSO transmitter is configured to transmit a data channel and an out-of-band control signal comprising timing information and bandwidth management information to a computer peripheral adapter and the data channel is configured to operate at a bit rate greater than 1 gigabits per second (Gbps).