Data Terminal Hot Swap Control via USB and Digital Audio Segmentation
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Solution Overview
Problem
Current data terminals face challenges in implementing real-time voice data transmission due to the bulk data transmission nature of USB and PCIE interfaces, which congests voice data with service data, and digital audio interfaces lack the hot swapping feature essential for live swapping functionality.
Innovation Solution
A data terminal equipped with a first digital audio circuit, an interface isolator, and a USB circuit with a hot swapping feature, allowing for initialization, configuration, and connection of the digital audio circuit to enable voice data transmission while supporting hot swapping, using a processor to negotiate configuration parameters and manage power and radio frequency signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If USB interface or PCIE interface is used for data transmission, then hot swapping function is supported, but voice data transmission real-time performance deteriorates due to bulk data transmission mode
Solution Approach 1:
The patent segments the data transmission interface into two independent parts: a USB interface for control and configuration data, and a digital audio interface for voice data. This segmentation allows each interface to operate independently with its own transmission mode, enabling the USB interface to support hot swapping while the digital audio interface provides real-time voice transmission without bulk transmission congestion.
Solution Approach 2:
The patent introduces a digital audio interface as an intermediary component between the processor and the external audio device. This intermediary handles voice data transmission separately from the USB interface, using dedicated audio transmission protocols that ensure real-time performance while the USB interface manages device control and configuration.
2Loss of time
If digital audio interface is used for voice data transmission, then real-time transmission performance is improved, but hot swapping function is lost
Solution Approach 1:
The patent makes the USB interface multi-functional by assigning it dual roles: it serves as the primary interface for hot swapping and device control, while also being responsible for initializing and configuring the digital audio interface. This universality allows the system to maintain hot swapping capability through the USB interface while enabling real-time voice transmission through the dedicated digital audio interface.
Solution Approach 2:
The USB interface performs preliminary actions by initializing and configuring the digital audio interface before voice data transmission begins. This preliminary configuration includes setting up transmission parameters, establishing connection protocols, and preparing the audio circuitry, thereby enabling the digital audio interface to immediately handle real-time voice transmission when needed.
3Device complexity
If USB interface transmits data in bulk manner, then device complexity is reduced, but voice data transmission quality deteriorates due to congestion from service data
Solution Approach 1:
The patent segments the data transmission channels into two distinct pathways: the USB interface handles control and service data with simplified bulk transmission, while the digital audio interface separately handles voice data with dedicated real-time transmission protocols. This segmentation prevents service data from congesting voice data transmission while maintaining relatively simple interface structures.
Data Source
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AI summary
Embodiments of the present invention disclose a data terminal, a data transmission system, and a hot swapping control method. The data terminal includes a first processor, a first digital audio circuit, an interface isolator, a first USB circuit, and a first connecting apparatus, where the first connecting apparatus includes a first digital audio connecting apparatus and a first USB connecting apparatus. The first processor is connected to the first digital audio circuit, the first processor is further connected to the first USB circuit, the first digital audio circuit is connected to the interface isolator, the interface isolator is connected to the first digital audio connecting apparatus, the first USB circuit is connected to the first USB connecting apparatus, and a status of the interface isolator is controlled by using a hot swapping feature of the first USB circuit, so that voice data transmission is performed between the first processor and a computer by using the first digital audio circuit and the first digital audio connecting apparatus, and the first digital audio circuit has the hot swapping feature when the first digital audio circuit is applied to the data terminal.