Acoustic Pairing via Knocking Wave Analysis
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Solution Overview
Problem
Conventional wireless device pairing methods, such as NFC, are cumbersome and prone to erroneous matching due to increased manufacturing costs and reliance on default passwords, leading to inefficiencies and safety risks.
Innovation Solution
A wireless device system and method that utilizes a knocking wave to generate a pairing request code, which is encoded and matched with a detecting code to facilitate secure and efficient pairing, reducing the need for physical NFC units and minimizing erroneous connections by analyzing the amplitude, frequency, or lighting changes of the knocking wave.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If NFC is used for pairing, then pairing security is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent replaces the NFC mechanical/electromagnetic system with an acoustic system using knocking waves for device pairing. The knocking wave generation unit creates sound waves that carry pairing information, eliminating the need for NFC hardware while achieving secure pairing through acoustic signal analysis and code verification.
Solution Approach 2:
The patent introduces knocking waves as an intermediary medium for pairing verification. Instead of direct NFC communication between devices, the knocking wave acts as a carrier that transmits pairing codes and verification information acoustically, enabling secure pairing without NFC hardware.
2Ease of operation
If default pairing password is used, then pairing ease of operation is improved, but erroneous matching risk increases
Solution Approach 1:
The patent changes the pairing verification parameter from a static default password to dynamic knocking wave characteristics including amplitude, frequency, and timing. Each device generates unique knocking patterns that are analyzed and matched, providing secure verification while maintaining ease of operation through automatic acoustic analysis.
Solution Approach 2:
The patent implements feedback mechanisms where devices analyze the knocking waves received from other devices, verify the codes embedded in the acoustic signals, and confirm pairing only when verification succeeds. This feedback loop ensures accurate matching while keeping the operation simple for users.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach simplifies the pairing process, reduces the pairing time and flow, and effectively minimizes erroneous matching risks by using physical touch and wave analysis, enhancing convenience and safety.
Implementation Method 1
when a wireless device and a electronic device are touched to generate a knocking wave
Data Source
AI summary
A wireless device system and method are disclosed herein, in which the wireless device system includes a wireless device and an electronic device. The wireless device includes an audio receiving unit and an encoder, in which the audio receiving unit receives a knocking wave, and the encoder encodes the knocking wave to a pairing request code. The electronic device includes an audio receiving part, a wireless transceiver and a processor. The audio receiving part receives the knocking wave, and the wireless transceiver receives the pairing request code. The processor encodes the knocking wave to a detecting code, and the electronic device connects with the wireless device when the pairing request code matched the detecting code. The wireless device touches the electronic device so that the knocking wave is generated.