Ring-tone Control Apparatus Using Echo Feedback for Environment Detection
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Solution Overview
Problem
Existing control apparatuses for electronic devices struggle to accurately switch ring-tones based on the surrounding environment due to difficulties in detecting and adjusting for external sounds.
Innovation Solution
A control apparatus comprising a sound producing section, a sound acquiring section, and an adjusting section that acquires external sound input signals and adjusts the ring-tone output signal accordingly, using echo tap coefficients and adjustment parameters to enhance sound recognition in varying environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the surrounding environment is detected according to external sounds, then the control apparatus can switch the ring-tone output, but the detection accuracy is insufficient leading to unreliable ring-tone switching
Solution Approach 1:
The patent implements feedback by capturing the output sound through the microphone, processing it to extract echo information, and using this feedback to determine the surrounding environment. The control apparatus outputs a ring-tone, captures its echo via microphone, processes the echo signal to extract features, and uses these features to accurately determine the environment, thereby reliably switching ring-tones based on accurate environmental detection.
2Adaptability or versatility
If external sound detection is used to determine surrounding environment, then ring-tone switching can be implemented, but echo interference reduces sound clarity and recognition accuracy
Solution Approach 1:
The patent extracts echo information from the captured sound signal by processing it through signal processing algorithms. The microphone captures the ring-tone output along with environmental sounds, and the processor extracts the echo component by identifying characteristics specific to the device's own sound output, separating it from external noises to eliminate interference.
Solution Approach 2:
The patent introduces signal processing as an intermediary between the microphone input and environment determination. The processor acts as a mediator that filters and analyzes the raw sound signal, extracting relevant echo features while eliminating external noise interference, thereby providing clean environmental information to the control logic.
3Measurement precision
If the sound output signal is adjusted according to acquired sound input signal, then sound recognition in varying environments is enhanced, but the device complexity increases
Solution Approach 1:
The patent makes the microphone serve multiple functions: it is used both for detecting external sounds and for capturing the echo of the device's own ring-tone output. This multi-functional use of the existing microphone eliminates the need for additional sensors or complex hardware, achieving enhanced sound recognition accuracy without proportionally increasing device complexity.
Solution Approach 2:
The patent adjusts the sound output signal by changing its parameters (volume, frequency characteristics) based on the acquired sound input signal and determined environment. The controller modifies ring-tone parameters dynamically according to environmental conditions, achieving adaptive sound recognition enhancement through parameter adjustment rather than hardware complexity increase.
Data Source
AI summary
The surrounding environment where an electronic apparatus is placed is detected according to external sounds, and therefore it is difficult to accurately switch the output of a ring-tone. A control apparatus controls the sound generated by the electronic device. The control apparatus includes a sound producing section that outputs a sound output signal causing a sound output section to generate the sound, a sound acquiring section that acquires a sound input signal generated from external sound, and an adjusting section that adjusts the sound output signal or the output of an output device according to the sound input signal acquired in a state where the sound is being generated.