Detection Circuit for Mobile Device Port Connection State
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Solution Overview
Problem
Mobile electronic devices experience unsatisfactory signal transmission quality due to poor electrical connections between the device and external docks or antennas, which are often unexplained and difficult to diagnose.
Innovation Solution
A detection circuit comprising a signal generator, switch module, signal detector, and processing unit that sends a test signal to the signal port to assess the connection state by comparing the detection signal's voltage with a threshold value, prompting the user to inspect or adjust the connection if abnormal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a built-in antenna is used to receive wirelessly transmitted signals, then the mobile electronic device achieves portability, but the reception area is small and signal reception effectiveness is poor
Solution Approach 1:
The antenna system is segmented into a built-in antenna for basic functionality and an external antenna for enhanced performance. The external antenna is disposed on a dock separately from the mobile device, allowing the device to maintain portability while the dock provides extended antenna functionality when needed.
Solution Approach 2:
The mobile electronic device is disposed on the dock in a nested configuration, where the device utilizes the dock's external antenna resources when connected. This allows the smaller device to benefit from the larger external antenna structure without carrying it permanently.
2Reliability
If external antennas are disposed on docks to enhance signal reception, then signal transmission quality is improved, but connection reliability deteriorates due to loose connections, damaged antennas, or misaligned ports
Solution Approach 1:
The detection circuit performs preliminary detection of the connection state between the mobile device and dock before signal transmission begins. By detecting connection quality in advance, the system can identify potential connection issues and alert users before they cause transmission problems.
Solution Approach 2:
The detection circuit provides feedback about the connection state to the user, enabling users to adjust or reconnect the dock properly. This feedback mechanism helps users understand connection quality and take corrective actions to maintain reliable signal transmission.
3Device complexity
If the connection state between mobile device and dock is not monitored, then device simplicity is maintained, but connection abnormalities remain undetected and unexplained
Solution Approach 1:
The detection circuit automatically monitors and detects the connection state between the mobile device and dock without requiring user intervention. The system serves itself by performing self-detection and providing connection status information, eliminating the need for manual connection checking.
Data Source
AI summary
A detection circuit is used to detect a connection state between a first signal port of an electronic device and a first external device. The detection circuit includes a signal generator, a switch module, a signal detector, and a processing unit. The signal generator generates a test signal. During a test process, the signal generator is electrically connected to the first signal port by the switch module, such that the test signal is sent to the first signal port to test the connection state of the first signal port. The signal detector produces a detection signal according to the connection state of the first signal port. The processing unit determines the state of connection between the first signal port and the first external device by comparing the voltage of the detection signal with a threshold value.