Split Wireless Headset Audio Using Alternating IR and RF
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless audio data transmission in peripheral devices like wireless headsets is vulnerable to hacking through methods such as bluebugging, blue snarfing, blue jacking, and blueborn attacks, compromising security during pairing and use.
Innovation Solution
Alternating audio data transmission between infrared (IR) and radio frequency (RF) methods, using a hardware microprocessor to periodically switch between IR transmission for input and RF reception for output, and vice versa, with IR requiring physical presence for interception, enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless audio data transmission is performed using a single method (e.g., Bluetooth RF), then the ease of operation is maintained, but the security is compromised due to vulnerability to hacking attacks
Solution Approach 1:
The audio data transmission is segmented into two separate channels: one for transmitting audio data to the headset and another for receiving audio data from the headset. Each channel uses a different wireless transmission method (IR and RF), thereby dividing the transmission system to enhance security against hacking attacks.
Solution Approach 2:
The system periodically alternates between using IR transmission for output and RF reception for input, and vice versa. This periodic switching between transmission methods makes it difficult for hackers to intercept and decode audio data, as the transmission medium changes over time.
2Reliability
If infrared (IR) transmission is used for audio data, then security is enhanced by requiring physical presence for interception, but the productivity is reduced due to line-of-sight requirements
Solution Approach 1:
The audio transmission is segmented into two directions: audio output from the information handling system uses IR transmission (requiring line-of-sight for enhanced security), while audio input from the headset uses RF transmission (allowing greater flexibility). This segmentation allows each direction to use the most appropriate transmission method.
Solution Approach 2:
The system periodically switches between using IR for transmission and RF for reception, and vice versa. This periodic action ensures that audio data can be transmitted securely when IR is used, while maintaining productivity when RF is used, thereby balancing security and efficiency requirements.
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
Enhances security by making interception of audio data more difficult, as it requires both physical presence and timing awareness, reducing the risk of unauthorized access.
Implementation Method 1
transmitting audio data to the information handling system via an infrared (IR) transmission
Implementation Method 2
receiving audio data from the information handling system via radio frequency (RF) reception
Data Source
AI summary
A system and method of splitting transceiving audio data between a peripheral device and an information handling system that includes alternating between transmitting audio data from the peripheral device to the information handling system via an infrared (IR) transmission using an IR photodiode system at the peripheral device while receiving audio data at the peripheral device from the information handling system via RF reception using an RF antenna and transmitting audio data from the peripheral device to the information handling system via a RF transmission while receiving audio data from the information handling system via the IR reception during alternating periods of time controlled by the hardware microprocessor of the peripheral device and coordinated with the information handling system.