Cross-Platform Audio Interface for Wireless Data Transmission
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Solution Overview
Problem
Current wireless communication technologies require specific hardware modules and pairing for information transmission, which can be costly and inefficient, especially for cross-platform compatibility between different terminal devices.
Innovation Solution
A method and system using a cross-platform audio interface to encode and transmit audio data between terminal devices, utilizing existing audio outputting and inputting devices without the need for additional hardware or pairing, employing an M-bit unit length encoding scheme and error correction with a third-party library to ensure reliable transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If Bluetooth or WIFI wireless transmission is used, then information can be transmitted wirelessly, but specific hardware modules and pairing are required which increases cost and complexity
Solution Approach 1:
The patent uses existing audio output devices (speakers) and audio input devices (microphones) for information transmission, making these devices serve dual purposes: traditional audio functions and wireless communication. This eliminates the need for dedicated Bluetooth or WIFI hardware modules, reducing device complexity while maintaining wireless transmission capability.
Solution Approach 2:
The patent leverages audio devices that are already present in terminal devices for communication purposes. By encoding information into audio signals that can be transmitted through existing speakers and captured by existing microphones, the system makes the audio devices serve themselves for both audio and communication functions, avoiding additional hardware requirements.
2Reliability
If Bluetooth or WIFI pairing is required, then secure communication can be established, but the pairing process reduces transmission efficiency and user convenience
Solution Approach 1:
The patent extracts the pairing requirement from the communication process by using audio signal characteristics (frequency, amplitude, timing) as implicit identification markers. Devices can directly transmit and recognize each other through audio signals without going through a separate pairing procedure, thereby eliminating the pairing step while maintaining device identification capability.
Solution Approach 2:
The patent embeds device identification information in advance within the audio signal parameters themselves. By encoding unique identifiers in the audio frequency or timing patterns before transmission, devices are pre-configured with recognition capabilities, eliminating the need for runtime pairing negotiations and improving transmission efficiency.
3Adaptability or versatility
If cross-platform compatibility is achieved through standard protocols, then different terminal devices can communicate, but hardware requirements and implementation complexity increase
Solution Approach 1:
The patent uses universal audio signal principles (frequency modulation, amplitude modulation, timing patterns) that are platform-independent and can be implemented across different operating systems and hardware architectures. By relying on fundamental audio processing capabilities that exist in all terminal devices, the system achieves cross-platform compatibility without requiring platform-specific implementations or additional complexity.
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
Enables low-cost, cross-platform, and efficient near-field wireless communication between various terminal devices using existing audio equipment, eliminating the need for specific hardware modules and pairing, thus improving transmission efficiency and compatibility.
Implementation Method 1
The sending end obtains audio data to be transmitted, encodes the obtained audio data according to an M-bit unit length, and uses a pre-set cross-platform audio interface to control an audio outputting device of the sending end to send the encoded audio data
Implementation Method 2
The at least one receiving end uses the pre-set cross-platform audio interface to control an audio inputting device of the at least one receiving end to receive the encoded audio data
Implementation Method 3
converting the received audio data into an audio signal via fast Fourier transform
Data Source
AI summary
Methods, systems, and terminal devices for transmitting information are provided. An exemplary system includes a sending end and at least one receiving end. The sending end is configured to obtain audio data to be transmitted, encode the obtained audio data according to an M-bit unit length, and use a pre-set cross-platform audio interface to control an audio outputting device of the sending end to send the encoded audio data to the at least one receiving end. The M-bit unit length is an encoding length corresponding to each frequency of a number N of frequencies, N is greater than or equal to 2, and M is greater than 0. The at least one receiving end is configured to use the pre-set cross-platform audio interface to control an audio inputting device of the at least one receiving end to receive the encoded audio data.