Sound Failure Detection in Communication Transmission Devices
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Solution Overview
Problem
In communication transmission devices, ensuring data consistency after digital processing such as codec conversion and echo canceling is challenging, making it difficult to determine sound failures accurately by comparing digitized sound signals.
Innovation Solution
A communication transmission device with an input sound level detection unit, an arithmetic processing unit, and an output sound level detection unit that convert sound data into bit strings based on sound levels, allowing a comparison determination unit to assess sound failures by comparing bit strings before and after processing, using predetermined logic to identify changes in sound levels or change timings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If digital arithmetic processing (codec conversion, echo cancel processing) is performed on sound signals, then communication functionality is improved, but data consistency and sound quality cannot be guaranteed
Solution Approach 1:
The patent applies preliminary action by detecting sound levels and converting them to bit strings before the arithmetic processing occurs. This allows the original sound characteristics to be captured and preserved in a simplified format, enabling later comparison to detect any degradation or failures introduced by the codec conversion or echo canceling processes.
2Measurement precision
If digitized sound signals are compared directly, then data consistency can be checked, but sound failure detection accuracy is insufficient
Solution Approach 1:
The patent extracts the essential sound level information from the complex digitized sound signals and represents it as simple bit strings. This extraction process removes unnecessary data while preserving the critical sound characteristics needed for failure detection, simplifying the comparison process while maintaining detection accuracy.
Solution Approach 2:
The patent changes the parameter representation from full digitized sound signals to simplified bit strings based on sound level thresholds. This parameter transformation reduces complexity while retaining the essential information needed to detect sound failures, enabling efficient comparison without losing detection capability.
3Productivity
If sound data is processed through multiple arithmetic operations, then communication functionality is enhanced, but processing errors may occur
Solution Approach 1:
The patent implements feedback by comparing the bit string representation of the original sound levels with the bit string representation of the processed sound levels. This feedback mechanism enables real-time detection of processing errors or degradation introduced by codec conversion and echo canceling operations, allowing for quality assurance without reprocessing the audio data.
Data Source
AI summary
A communication transmission device is provided with an input sound level detection unit for dividing, per unit time, sound data of a predetermined period of time and converting the sound data into a bit string according to whether or not a sound level thereof exceeds a predetermined threshold value, an arithmetic processing unit for performing predetermined arithmetic processing on the sound data an output sound level detection unit for dividing, per the unit time, sound data of the predetermined period of time after the arithmetic processing and converting the sound data into a bit string according to whether or not a sound level thereof exceeds the predetermined threshold value, and a comparison determination unit for determining whether or not a sound failure has occurred on the basis of a predetermined logic by which the bit string before the arithmetic processing and the bit string after the arithmetic processing are compared.