Terminal Switch Coupling Control for Antenna Signal Reception
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Solution Overview
Problem
Radio communication devices equipped with external antennas face challenges when mounted in different orientations, as the coupling relations between antenna terminals and external antennas can be reversed, leading to incorrect signal reception for communication units.
Innovation Solution
A radio communication device with two communication units and two antenna terminals, along with a terminal switch and controller, that switches coupling states to ensure correct signal reception even when antenna terminal couplings are reversed, allowing the device to maintain proper communication unit-signal relations across different mounting orientations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the device uses fixed coupling between communication units and antenna terminals, then the structure is simple, but signal reception becomes incorrect when mounting orientation changes
Solution Approach 1:
The patent implements dynamic coupling configuration where the terminal switch changes its coupling state based on detected mounting orientation. The controller detects whether the device is mounted in a normal or reversed orientation and dynamically reconfigures which communication unit couples to which antenna terminal, ensuring correct signal reception regardless of mounting orientation.
Solution Approach 2:
The system uses feedback from orientation detection to control the terminal switch. The controller detects the mounting orientation (normal or reversed) and uses this feedback information to automatically adjust the coupling configuration, creating a closed-loop system that maintains correct operation under varying conditions.
2Adaptability or versatility
If the device adapts to different mounting orientations, then versatility is improved, but the coupling control mechanism becomes more complex
Solution Approach 1:
The terminal switch is designed to perform multiple functions: it can maintain fixed coupling in normal orientation or switch to alternative coupling when reversed orientation is detected. This multi-functionality allows the same hardware component to adapt to different mounting scenarios without requiring separate dedicated switches for each orientation.
Solution Approach 2:
The system performs self-adjustment by automatically detecting its own mounting orientation and reconfiguring its internal couplings accordingly. The controller monitors the mounting state and autonomously controls the terminal switch to maintain correct operation, eliminating the need for external manual reconfiguration.
Data Source
AI summary
Tablet PC (10) includes communication units (111, 112), antenna terminal (T1) used to receive one of first and second signals, antenna terminal (T2) used to receive another one of the first and second signals, terminal switch (40) configured to perform switching between a first coupling state in which communication unit (111) and terminal (T1) are coupled, and communication unit (112) and terminal (T2) are coupled, and a second coupling state in which communication unit (111) and terminal (T2) are coupled, and communication unit (112) and terminal (T1) are coupled, and controller (30) configured to control terminal switch (40) so as to switch to the first coupling state when terminal (T1) receives the first signal, and terminal (T2) receives the second signal, and to control terminal switch (40) so as to switch to the second coupling state when terminal (T1) receives the second signal, and terminal (T2) receives the first signal.