Mobile Call Audio Gain Control for Etiquette Mode Privacy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile devices lack an effective mechanism to adjust call volume in etiquette mode, leading to noise pollution and privacy issues, as the maximum transmission gain can make a whisper audible but also broadcasts loud voices, and reducing volume may make it difficult to hear soft voices.
Innovation Solution
An apparatus and method for an etiquette call mode that adjusts the volume of received calls to a reference level range by establishing specific transmission and reception gains, using an RF unit, audio processing unit, and control unit to amplify and adjust the volume based on the audio processing unit's components, including A/D converters, amplifiers, and a volume adjustor, ensuring the call is audible without disturbing others.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If maximum transmission gain is used to hear soft voices clearly, then low-voice callers become audible, but loud voices are broadcasted causing noise pollution and privacy issues
Solution Approach 1:
The patent implements dynamic volume adjustment by detecting the caller's voice volume level and automatically adapting the transmission gain in real-time. When a loud voice is detected, the system reduces the gain to prevent noise pollution, while maintaining high sensitivity for soft voices, thus resolving the contradiction between hearing soft voices and preventing loud voice broadcast
Solution Approach 2:
The system changes the transmission gain parameter dynamically based on the detected voice level. By adjusting this key parameter according to the caller's volume, the system optimizes both the audibility of soft voices and the suppression of loud voices, eliminating the need for fixed maximum gain settings
2Object-generated harmful factors
If volume is reduced to prevent noise pollution, then privacy is protected, but soft voices become difficult to hear
Solution Approach 1:
The system dynamically adjusts transmission gain based on real-time voice level detection. When soft voices are detected, the system automatically increases gain to ensure audibility, while reducing gain for loud voices to control noise pollution, thus resolving the contradiction between noise control and soft voice hearing
Solution Approach 2:
The patent employs feedback mechanisms where the detected voice volume level feeds back to the gain control system. This closed-loop control ensures that the transmission gain is continuously optimized based on the actual caller volume, maintaining both privacy protection and soft voice audibility
3Device complexity
If fixed gain values are used for transmission and reception, then device complexity is reduced, but the system cannot adapt to different voice volumes and situations
Solution Approach 1:
The system performs self-adjustment by automatically detecting voice volume levels and adapting transmission gain without requiring manual intervention. This self-service capability provides adaptability to different voice volumes while maintaining relatively simple device architecture, resolving the contradiction between complexity and versatility
Data Source
AI summary
An apparatus and method are provided to output a received call with a volume adjusted to a reference level range in the etiquette call mode. In the method for providing the etiquette call mode of a mobile device, the apparatus determines whether the etiquette call mode is activated in a call mode. When the etiquette call mode is activated, the apparatus establishes a transmission gain to a given gain value and also establishes a reception gain to a specific gain value corresponding to a minimum receiving volume level. Then the apparatus amplifies a received call by means of the established reception gain, adjusts a volume of the amplified received call to a given reference level range, and outputs the adjusted received call through a speaker.