Integrated Audio Interface Circuit for Dynamic Signal Routing
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Solution Overview
Problem
Conventional electronic devices without synchronized dock connectors require two separate interface circuits for audio signal output and program updating, leading to high manufacturing costs and idle program updating circuitry.
Innovation Solution
An integrated interface circuit that combines audio signal output and program updating functions using a detecting module, control module, and switch module to establish electrical connections between audio terminals for both signal transmission and program updates, reducing component count and preventing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two separate interface circuits are used for audio signal output and program updating, then the functions are clearly separated and reliable, but the manufacturing cost increases and device complexity increases
Solution Approach 1:
The patent combines the audio signal output circuit and program updating circuit into a single integrated interface circuit. The same physical interface (audio jack) and control module handle both audio transmission and firmware updating functions, eliminating the need for separate dedicated circuits for each function.
Solution Approach 2:
The interface circuit is designed with multi-functionality, where the audio jack and control module can dynamically switch between handling audio signals and program updating data. The control module detects the type of connection and routing module dynamically redirects signals to appropriate processing paths based on the detected function.
2Reliability
If two separate interface circuits are used for audio signal output and program updating, then each function has dedicated circuitry, but the manufacturing cost increases
Solution Approach 1:
The patent merges the audio signal output circuit and program updating circuit into a single integrated interface circuit. The same physical interface (audio jack) and control module handle both audio transmission and firmware updating functions, eliminating the need for separate dedicated circuits for each function.
Solution Approach 2:
The interface circuit is designed with multi-functionality, where the audio jack and control module can dynamically switch between handling audio signals and program updating data. The control module detects the type of connection and routing module dynamically redirects signals to appropriate processing paths based on the detected function.
3Adaptability or versatility
If a separate program updating circuit is used, then program updates can be performed, but the circuit remains idle most of the time increasing device complexity
Solution Approach 1:
The interface circuit is designed with multi-functionality, where the audio jack and control module can dynamically switch between handling audio signals and program updating data. The control module detects the type of connection and routing module dynamically redirects signals to appropriate processing paths based on the detected function.
Solution Approach 2:
The circuit employs dynamic switching through the routing module that changes connection paths based on real-time detection of the connected device type. The same physical components adapt their function dynamically between audio output and program updating modes, eliminating idle dedicated circuits.
4Productivity
If audio terminal is connected for audio output, then audio signal can be transmitted, but program updating cannot be performed simultaneously
Solution Approach 1:
The circuit employs dynamic switching through the routing module that changes connection paths based on real-time detection of the connected device type. The same physical components adapt their function dynamically between audio output and program updating modes, eliminating idle dedicated circuits.
Solution Approach 2:
The control module continuously monitors the audio terminal connection status and detects whether the connected device is an audio device or a programming device. Based on this feedback, the control module dynamically configures the routing module to establish appropriate signal paths, enabling the system to adapt its function based on real-time conditions.
Data Source
AI summary
An interface circuit for use in an electronic device includes a switch module and a control module including signal receiving and transmitting pins. When a first audio terminal of the electronic device is electrically connected to a second audio terminal of another device, the control module controls the switch module to establish electrical connection between the signal receiving pin and the first audio terminal. The control module controls the switch module to establish electrical connection either between the signal transmitting pin and the first audio terminal for proceeding with a program update when updating information from the second audio terminal is received through the signal receiving pin or between an audio signal providing module of the electronic device and the first audio terminal when no updating information is received.