Multi-tap with Selectable Signal Conditioning Modules
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Solution Overview
Problem
Cable-television network taps require frequent field installation and configuration of plug-in modules for signal conditioning, which is prone to errors and susceptible to moisture, leading to potential device failure.
Innovation Solution
A multi-tap device with integrated signal conditioning circuits and a path-selection device that allows for selectable routing of signals through different conditioning circuits, eliminating the need for plug-in modules and providing multiple conditioning options without exposing them to environmental hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If plug-in modules are used for signal conditioning, then adaptability is improved, but reliability deteriorates due to field installation errors and moisture susceptibility
Solution Approach 1:
The patent combines multiple signal conditioning modules into a single integrated housing, eliminating the need for separate plug-in modules. The housing contains multiple chambers, each housing a different signal conditioning module, with a common interface that automatically routes signals to the appropriate module. This integration eliminates field installation errors while maintaining adaptability through the modular chamber design.
Solution Approach 2:
The patent introduces a signal distribution bus as an intermediary between the interface and the individual signal conditioning modules. The bus automatically routes signals to the appropriate module based on the selected conditioning type, eliminating the need for manual field configuration while maintaining adaptability. This intermediary system prevents installation errors by automating the signal routing process.
2Adaptability or versatility
If plug-in modules are used for signal conditioning, then adaptability is improved, but device complexity increases due to disassembly and reassembly requirements
Solution Approach 1:
The patent merges multiple signal conditioning modules into a single integrated unit with a common interface. The housing contains multiple chambers, each housing a different signal conditioning module, but presents a unified external interface. This eliminates the need for disassembly and reassembly in the field, as all modules are permanently secured within the housing, while maintaining adaptability through the internal modular structure.
Solution Approach 2:
The patent implements preliminary configuration during manufacturing, where the signal conditioning modules are pre-installed and secured within the housing chambers. The interface is pre-configured with the signal distribution bus to automatically route signals to the appropriate modules. This preliminary action eliminates the need for field disassembly and reassembly, reducing installation complexity while maintaining adaptability.
3Reliability
If signal conditioning circuits are integrated, then reliability is improved, but adaptability may deteriorate
Solution Approach 1:
The patent segments the signal conditioning functionality into multiple independent chambers within a single integrated housing. Each chamber houses a different signal conditioning module (e.g., amplifier, equalizer, filter), and the interface provides selective access to each chamber. This segmentation maintains reliability through integration while preserving adaptability through the modular chamber structure that allows different conditioning types to be activated based on network requirements.
Solution Approach 2:
The patent implements a dynamic selection mechanism at the interface that allows the tap to dynamically activate different signal conditioning modules based on network requirements. The signal distribution bus automatically routes signals to the appropriate chamber and module, enabling the integrated device to adapt its signal conditioning behavior in real-time while maintaining the reliability benefits of integration.
Data Source
AI summary
A tap includes an input configured to be connected to a line. The tap also includes a first signal conditioning circuit having a first signal conditioning effect on downstream signals, upstream signals, or both. The tap also includes a second signal conditioning circuit having a second signal conditioning effect on the downstream signals, the upstream signals, or both. The second signal condition effect is different than the first signal conditioning effect. The tap also includes one or more subscriber ports configured to be connected to a subscriber premises. The tap also includes a path-selection device connected to the input, the first signal conditioning circuit, and the second signal conditioning circuit. The path-selection device is configured to selectably route the downstream signals from the input, through the first and second signal conditioning circuits, to the one or more subscriber ports.