Automatic Permutation Setup for Headset Interface Units
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Solution Overview
Problem
The lack of standardization in handset ports of telephones requires headsets to be manually adapted to specific telephone models, leading to difficulties in configuring permutation settings and microphone gain, resulting in suboptimal sound quality and inefficient calibration processes.
Innovation Solution
An automated method for configuring headset interface units, using test signals to determine preferred permutation settings and microphone gain settings, which can be wirelessly connected and calibrated through a dial-in setup server, minimizing user intervention and ensuring optimal sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual configuration of permutation settings is used, then the interface unit can be adapted to specific telephone models, but the configuration process becomes time-consuming and requires user intervention
Solution Approach 1:
The patent applies preliminary action by pre-configuring a database of permutation settings for multiple telephone models before actual use. The system automatically retrieves and applies the appropriate permutation setting based on telephone identification, eliminating the need for users to manually configure settings at the time of connection.
Solution Approach 2:
The system performs self-service by automatically detecting the telephone model and selecting the appropriate permutation setting without requiring user intervention. The interface unit independently queries the database, identifies the correct configuration, and applies it automatically, making the system self-configuring.
2Manufacturing precision
If manual calibration of microphone gain is used, then the sound quality can be optimized, but the calibration process requires another person to assist and is inefficient
Solution Approach 1:
The system performs self-service calibration by automatically measuring the microphone gain using the telephone's speaker and processing the returned signal. The interface unit independently determines the optimal gain setting without requiring another person to assist with the calibration process.
Solution Approach 2:
The calibration process uses feedback by transmitting a test signal through the telephone's speaker and analyzing the returned signal to determine the optimal microphone gain. The system measures the actual acoustic path and adjusts the gain based on the measured feedback signal.
3Adaptability or versatility
If a large lookup table of permutation settings is provided to users, then complete coverage of telephone models is achieved, but the table is inconvenient for users to utilize and tedious for manufacturers to maintain
Solution Approach 1:
The system performs self-service by automatically querying the database of permutation settings based on detected telephone model information and selecting the appropriate configuration without requiring users to manually search or select from a lookup table.
Solution Approach 2:
The system achieves universality by implementing a comprehensive database that covers multiple telephone models and an automatic detection mechanism that works with various telephone types, making the interface unit compatible with diverse telephones without requiring model-specific manual configuration.
4Ease of operation
If trial and error method is used for permutation setting, then the interface unit can be configured, but the process may result in suboptimal sound quality and require technical support
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing the optimal permutation settings for different telephone models in a database before deployment. This eliminates the need for trial and error during actual use, as the correct setting is already determined and stored based on telephone model characteristics.
Solution Approach 2:
The system uses feedback by automatically detecting telephone model information and using this feedback to query the database for the correct permutation setting, ensuring the optimal configuration is applied without requiring users to guess or try multiple settings.
Data Source
AI summary
A method for automatically configuring an interface unit (112, 212, 912, 1012, 1112) for connecting a headset (110, 210, 910, 1110) and a telephone (100) by electrical connections (992, 993, 1092, 1093). The electrical connections (992, 993, 1092, 1093) between the interface unit (112, 212, 912, 1012, 1112) and the telephone (100) comprise two pairs of electrical paths having a number of distinct permutation settings. Each of the number of distinct permutation settings have a complementary setting together forming a number of distinct complementary setting pairs. The method comprises the steps of: a) receiving a test signal, b) for each distinct permutation setting generating an output signal in response to the test signal, c) determining a least preferred distinct permutation setting based on the output signals, d) selecting the complementary setting to the least preferred distinct permutation setting as a preferred setting.