Signal Receiver Loop-Through Switch Unit Sleep Mode Power
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Solution Overview
Problem
Multimedia devices with loop-through RF signals face high power consumption during sleep mode due to additional electronic components like low noise amplifiers and attenuators, which is a compliance issue with power consumption regulations.
Innovation Solution
A signal receiver design incorporating a switch unit, low noise amplifier, power divider, and attenuator that operates in different modes to bypass the amplifier during sleep mode, reducing power consumption by shutting it down or putting it in a power-saving mode while maintaining loop-through functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional electronic components (LNA, attenuator) are included in the loop-through function, then the loop-through capability is improved, but power consumption during sleep mode increases
Solution Approach 1:
The patent applies dynamics by making the signal path configurable through switch units that can dynamically change the signal flow between different modes (first mode with LNA and second mode without LNA). This allows the system to adapt its architecture based on operational requirements, enabling the loop-through function to be achieved with minimal power consumption by bypassing the LNA when not needed.
Solution Approach 2:
The patent segments the signal processing path into distinct segments (switch units, LNA, power divider, attenuator) that can be independently controlled. By using switch units to selectively connect or disconnect the LNA from the signal path, the system can maintain loop-through capability while excluding the power-consuming LNA during sleep mode, thus resolving the contradiction between functionality and power consumption.
2Use of energy by moving object
If the LNA is shut down during sleep mode to reduce power consumption, then power consumption is reduced, but signal amplification capability is lost
Solution Approach 1:
The system dynamically switches between two operational states: during normal operation, the LNA is activated to provide signal amplification; during sleep mode, the LNA is deactivated to save power. The switch units dynamically reconfigure the signal path to bypass the LNA during sleep mode, maintaining loop-through functionality without requiring amplification, thus resolving the contradiction between power consumption and signal amplification capability.
Solution Approach 2:
The patent changes the operational parameters of the signal receiver by switching between different modes (first mode with LNA activation, second mode with LNA deactivation). This parameter change allows the system to optimize for power consumption during sleep mode while maintaining the ability to provide signal amplification when needed, thus resolving the contradiction between power savings and functional capability.
Data Source
AI summary
The present invention discloses a signal receiver and a method thereof. The signal receiver utilizes a switch unit to regulate a loop-through, where the complete function of the loop-through is accomplished even during a sleep mode, which reduces power consumption of the signal receiver.


