Communication Device Noise Control via Synchronization Detection
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Solution Overview
Problem
Conventional communication devices experience reduced signal receiving sensitivity due to high-frequency noise generated by wired communication methods, which can interfere with wireless receiving units when the antenna is near communication cables.
Innovation Solution
A communication device with a reception antenna and a wireless communication element that synchronizes with incoming signals, and a wire communication element connected to an external device via a cable, which determines if synchronization is established and restricts signal transmission to prevent high-frequency noise from entering the antenna, thereby improving receiving sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the antenna is arranged near the communication cable for compact device structure, then the device size is reduced, but high frequency noise from the communication cable interferes with the wireless receiving unit, reducing signal receiving sensitivity
Solution Approach 1:
The wire communication element determines whether the wireless communication element is synchronizing with the reception signal before transmitting the signal to the communication cable. This preliminary check prevents noise transmission during critical reception periods, resolving the contradiction by proactively avoiding harmful interference while maintaining compact antenna-cable arrangement
2Productivity
If the wire communication element transmits signal continuously to the communication cable, then data communication efficiency is improved, but high frequency noise radiates and negatively affects the wireless receiving unit
Solution Approach 1:
The wire communication element transmits signals periodically based on synchronization status rather than continuously. By checking synchronization conditions and transmitting only when appropriate, the system maintains effective data communication while periodically avoiding noise transmission that would degrade receiving sensitivity
3Device complexity
If the antenna and communication cable are positioned close together, then device complexity is reduced, but noise generated at the communication cable mixes into the wireless receiving unit
Solution Approach 1:
The wire communication element continuously monitors the synchronization status of the wireless communication element and adjusts signal transmission accordingly. This feedback mechanism allows the system to maintain simple compact layout while dynamically preventing noise interference by stopping cable signal transmission when wireless reception is active
Data Source
AI summary
A communication device includes: a reception antenna; a wireless communication element that synchronizes with a reception signal in an electric wave input from the reception antenna, and receives the reception signal; and a wire communication element connected to the wireless communication element and connected to an external communication device via a communication cable so that the wire communication element transmits a signal to the communication cable. The wire communication element determines whether the wireless communication element synchronizes with the reception signal. When the wire communication element determines that the wireless communication element synchronizes with the reception signal, the wire communication element restricts transmitting the signal to the communication cable.