Analog Processing Device for Voice Transmission in Data Cards
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Solution Overview
Problem
Existing data transmission devices, such as wireless data cards, support 3rd generation mobile communications standards but fail to utilize their voice transmission capabilities due to the lack of appropriate peripheral devices like phone jacks or connectors for audio interfaces.
Innovation Solution
An analog processing device with an audio interface unit, output unit, and input unit is integrated into the data transmission device, providing I/O interfaces like speaker and microphone jacks, and optional connection devices for wired or wireless connections, enabling voice transmission functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a data transmission device is equipped with voice transmission interface inside, then the device has voice transmission capability, but without appropriate connectors like phone jacks, the voice transmission function cannot be used
Solution Approach 1:
The patent introduces an audio interface unit as an intermediary component between the voice transmission interface and external devices. This unit includes a connector that can be coupled to external audio devices (headphones, microphones, speakers), enabling the voice transmission function to be practically used. The audio interface unit acts as a bridge that connects the internal voice capability with external audio equipment.
2Reliability
If analog signal processing unit is added to process input and output signals, then voice transmission quality is improved, but device complexity increases
Solution Approach 1:
The analog signal processing unit is designed to handle multiple signal types (input signals from microphones and output signals to headphones/speakers) through a single integrated component. This multi-functional design improves voice transmission quality for all audio outputs while minimizing the increase in device complexity by using a universal processing unit rather than separate processors for each function.
Data Source
AI summary
In order to put the voice transmission function of a data transmission device into practice, the present invention provides an analog processing device for a data transmission device, which includes an analog signal processing unit for performing analog signal processes on an input signal received by the data transmission device and an output signal transmitted by the data transmission device, an audio interface unit coupled to the analog signal processing unit, for transmitting the input signal and the output signal, an output unit coupled to the audio interface unit, for transmitting the output signal from the audio interface unit to an external device, and an input unit coupled to the audio interface unit, for transmitting the input signal from the external device to the audio interface unit.