Radio Alert System Using Voice Channel Data Transmission
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Solution Overview
Problem
Existing communication systems using voice channels are nonlinear and time-varying, making it difficult to transmit data effectively, especially in emergency situations where users may be incapacitated or unable to manually repeat data, and third-party accessories often lack access to the physical channel for data communication.
Innovation Solution
A system and method that utilize a nonlinear, time-varying voice channel to automatically communicate data through a controller and sensor array, which generates modulated data packets or audible alerts, allowing transmission over a vocoder channel even when full bandwidth is not available, using a microphone input and push-to-talk control line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a vocoder is used to reduce voice to low bandwidth digital signal, then bandwidth efficiency is improved, but the audio path becomes nonlinear and time varying making data transmission unreliable
Solution Approach 1:
The patent introduces an intermediary data transmission path that bypasses the vocoder's nonlinear audio processing. By providing a separate digital data channel that operates independently from the voice compression path, the system maintains reliable data transmission without compromising bandwidth efficiency in the voice channel.
Solution Approach 2:
The communication system is segmented into separate functional paths: a voice path for audio transmission and a data path for digital information. This segmentation allows each path to be optimized independently - the voice path uses vocoder compression while the data path maintains reliability through dedicated digital signaling.
2Ease of operation
If manual verbal repetition is used for mission critical information, then data transmission is possible, but user distraction or incapacitation can result in severe harm
Solution Approach 1:
The system implements automatic data transmission that operates without requiring user intervention during critical moments. Sensors and automated systems handle data collection and transmission, freeing the user from manual repetition tasks and eliminating the risk of human error during emergencies.
Solution Approach 2:
The system performs preliminary actions by pre-configuring automated data collection and transmission protocols before emergencies occur. This ensures that when critical events happen, data is already being captured and transmitted automatically without requiring user initiation.
3Adaptability or versatility
If third party accessories need data communication access, then functionality is improved, but access to the physical channel is often denied
Solution Approach 1:
The patent implements a universal data interface that allows multiple third-party accessories to access the data communication channel through a standardized protocol. This universal access mechanism enables diverse accessories to communicate data without requiring complex individual authorization systems for each device.
Data Source
AI summary
Various embodiments include a system and method that automatically communicate data using a nonlinear, time-varying voice channel. The system may include one or more sensors, a controller, and a radio transmitter. The one or more sensors may be operable to detect a condition. The controller may be configured to receive an indication of the detected condition from the at least one sensor. The controller may be configured to generate a message including information of the detected condition based on the received indication of the detected condition. The radio transmitter may be configured to wirelessly transmit the generated message on the voice channel.