Satellite Signal Stacking for MDU Distribution
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Solution Overview
Problem
Current satellite broadcast systems are inadequate for delivering signals to multiple dwelling units (MDUs) due to alignment issues and the inability to process Ka-band frequencies, limiting access to satellite signals and requiring separate outdoor units for each dwelling unit, which is impractical and costly.
Innovation Solution
A system that uses an antenna to receive satellite signals, a conversion unit to stack these signals onto a single cable, and a distribution unit to distribute them to multiple outputs, allowing each unit in the MDU to destack and decode the signals using customer devices, while also supporting off-air television and internet signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate outdoor units are installed for each dwelling unit, then each unit can receive satellite signals, but the cost and complexity increase significantly
Solution Approach 1:
The patent combines multiple satellite signals and multiple dwelling units into a single outdoor unit and distribution system. The outdoor unit receives signals from multiple satellites and distributes them through a common coaxial cable infrastructure to multiple indoor receivers, eliminating the need for separate outdoor units at each dwelling unit while maintaining reliable signal reception.
Solution Approach 2:
The outdoor unit is designed to perform multiple functions: receiving signals from multiple satellites simultaneously, processing different signal types (satellite, cable, over-the-air), and distributing them to multiple dwelling units. This multi-functional design replaces what would traditionally require multiple dedicated outdoor units.
2Adaptability or versatility
If Ka-band frequencies are processed, then future satellite signals can be received, but existing systems cannot process these frequencies
Solution Approach 1:
The system changes the frequency parameter handling by using frequency translation and stacking techniques. The outdoor unit translates Ka-band signals to compatible frequency ranges and stacks multiple frequency bands onto a single coaxial cable, allowing existing infrastructure to handle future Ka-band frequencies without requiring complete system replacement.
Solution Approach 2:
The patent adds a frequency stacking dimension to the signal distribution system. Multiple frequency bands (Ku-band, Ka-band, and other satellite frequencies) are stacked onto a single coaxial cable infrastructure, allowing the system to accommodate future Ka-band frequencies while maintaining compatibility with existing receivers through frequency translation.
3Adaptability or versatility
If multiple feedhorns are used on a single outdoor unit, then signals from multiple satellites can be received, but the system becomes complex
Solution Approach 1:
The patent merges multiple feedhorn functions into a single integrated outdoor unit that can receive signals from multiple satellites. Instead of having separate feedhorns for each satellite, the system uses a unified reception and processing architecture that handles multiple satellite frequencies and formats through a single outdoor unit.
4Adaptability or versatility
If dwelling units without clear sky access are served, then all units can receive satellite signals, but signal reception is degraded or eliminated
Solution Approach 1:
The patent introduces an intermediary distribution system that decouples the direct line-of-sight requirement from the signal reception process. The outdoor unit receives satellite signals and acts as an intermediary, translating and redistributing them through the building's existing coaxial cable infrastructure to indoor receivers, thereby serving dwelling units regardless of their sky access visibility.
Data Source
AI summary
Systems for delivering satellite signals to multiple dwelling units (MDUs). A system in accordance with the present invention comprises an antenna for receiving the satellite signals, a conversion unit, coupled to the antenna, for stacking the satellite signals onto a single cable, a distribution unit, coupled to the conversion unit, wherein the distribution unit distributes the stacked satellite signal to a plurality of outputs, and at least one customer device, coupled to an output of the plurality of outputs, wherein each unit in the MDU uses the customer device to destack the stacked satellite signals for delivery to a receiver.