Receiver Blockage Detection and Gain Adjustment
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Solution Overview
Problem
The sound produced by the receiver structure in electronic devices is prone to noise during calls due to blockages, negatively impacting user experience.
Innovation Solution
A receiver control method and device that detects blocked receivers and adjusts the electrical signal gain of the feedback circuit to reduce noise, by detecting impedance or resonance frequency changes and adjusting the signal input accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple receivers are arranged to emit sound through micro-slit to enhance sound output loudness, then sound output loudness is improved, but noise is generated due to blockages
Solution Approach 1:
The patent implements a feedback control mechanism where the system detects receiver blockage status through acoustic feedback analysis and dynamically adjusts the electrical signal gain of individual receivers. The baseband circuit receives feedback from the acoustic environment and automatically modulates the signal strength to blocked receivers, reducing noise generation while maintaining overall sound output quality.
Solution Approach 2:
The patent introduces dynamic signal gain adjustment for receivers based on real-time blockage detection. The electrical signal gain of each receiver is no longer fixed but dynamically modulated according to its operational status, allowing the system to adapt to changing conditions during calls and minimize noise from blocked receivers.
2Illumination intensity
If receiver signal gain is increased to improve sound output, then sound output loudness is improved, but noise from blocked receivers increases
Solution Approach 1:
The patent applies local quality control by individually adjusting the signal gain of each receiver based on its specific blockage status. Instead of uniformly reducing all receiver signals, the system selectively modulates only those receivers detected as blocked, maintaining high sound output from unblocked receivers while suppressing noise from blocked ones.
Solution Approach 2:
The patent changes the electrical signal gain parameter of receivers dynamically based on detected blockage conditions. The system monitors acoustic feedback and adjusts the signal amplitude parameter for individual receivers in real-time, transforming a static gain configuration into a dynamically adaptable parameter that responds to operational conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The method effectively suppresses noise caused by blockages, improving call quality and user experience, especially for users who frequently move the device during calls.
Implementation Method 1
detecting impedance or resonance frequency changes and adjusting the signal input accordingly
Implementation Method 2
detecting impedance or resonance frequency changes and adjusting the signal input accordingly
Implementation Method 3
adjusting the electrical signal gain of the feedback circuit corresponding to the first receiver so as to reduce an electrical signal input to the first receiver
Data Source
AI summary
A receiver control method and device, and an electronic device are provided. The electronic device includes at least one receiver, wherein the at least one receiver is electrically connected to a baseband circuit, and a feedback circuit is arranged between at least one receiver and the baseband circuit. The receiver control method includes: detecting the at least one receiver; and in a case of detecting that a first receiver of the at least one receiver is blocked, adjusting an electrical signal gain of the feedback circuit corresponding to the first receiver to reduce an electrical signal input to the first receiver.