Electronic Apparatus Testing via Power Cable Signal Modulation
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Solution Overview
Problem
Existing electronic apparatus testing methods require additional testing pins that occupy space, compromise aesthetics, and are unnecessary for users, as they disrupt the appearance and functionality of devices.
Innovation Solution
Utilizing the existing power cable as a signal transmission path by altering the current waveform to test functional elements, eliminating the need for additional testing pins by using a control unit that switches between on and off states to detect current variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If testing pins are installed on the electronic apparatus, then testing functionality is achieved, but aesthetic appearance and space utilization deteriorate
Solution Approach 1:
The patent merges the testing signal transmission function with the existing power cable structure. The power cable's conductors are used to carry both power and testing signals, eliminating the need for separate testing pins. This combining of functions removes protruding testing pins from the device exterior, preserving aesthetic appearance while maintaining testing capability.
Solution Approach 2:
The power cable is given multi-functionality by enabling it to transmit both power and testing signals through its existing conductors. The control unit modulates the current waveform on the power cable carriers to encode testing signals, allowing a single component to serve multiple purposes and eliminating dedicated testing pins.
2Adaptability or versatility
If testing pins are installed on the electronic apparatus, then testing functionality is achieved, but device complexity and space occupation increase
Solution Approach 1:
The testing functionality is merged into the existing power cable infrastructure. The control unit utilizes the power cable's conductors to transmit testing signals by modulating current waveforms, eliminating the need for additional testing pins and reducing overall device structural complexity.
Solution Approach 2:
The power cable serves itself by carrying both power and testing signals through its existing conductors. The control unit enables the power cable to perform the additional function of signal transmission without requiring external additions, making the system more efficient and less complex.
3Shape
If testing pins are hidden in battery slot, then aesthetic appearance is improved, but testing accessibility and operation ease deteriorate
Solution Approach 1:
The power cable acts as an intermediary that connects the external testing device to the control unit without requiring physical access to internal components. Testing signals are transmitted through the power cable's conductors, allowing testing to be performed externally while maintaining aesthetic appearance with no visible testing pins.
Data Source
AI summary
An electronic apparatus includes a first power contact, a second power contact, and a control unit. The first power contact is electrically connected with an anode of a power supply source, and the second power contact is electrically connected with a cathode of the power supply source. The control unit electrically connects the first power contact and the second power contact for forming a signal transmission path and receiving the power generated by the power supply source. When the control unit is operated in a testing mode, the control unit operates in a working mode or a sleeping mode according to an instruction of a default instruction set for changing a current waveform signal transmitted over the signal transmission path, so as to achieve the purpose of providing a convenient and high-efficiency testing.