Digital Radio Receiver Alert Filtering and Rendering
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Solution Overview
Problem
Current digital radio broadcasting systems lack the capability to effectively render an enhanced breadth of alert information to users, limiting the utility of digital radio broadcast receivers in conveying critical and timely information.
Innovation Solution
A digital radio broadcast receiver system that detects alert messages within digital radio broadcast signals, filters them based on user-preselected criteria, and renders the appropriate information through audio and/or visual means, including the ability to control external devices, while maintaining power efficiency through sleep mode functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional analog AM and FM radio systems are used for emergency alert notification, then the system is simple and widely compatible, but the capability to deliver enhanced breadth of alert information is limited
Solution Approach 1:
The patent segments alert information into multiple types (emergency alerts, commercial notifications, location-specific messages) and processes them through different filtering criteria. The system divides the broad category of alert information into specific actionable categories that can be independently selected and rendered by users, thereby delivering enhanced breadth of information while maintaining system adaptability.
Solution Approach 2:
The system dynamically adjusts its alert rendering capability based on user-preselected criteria. Users can configure which types of alerts to receive, and the system adapts its information delivery in real-time based on these preferences, location data, and message characteristics. This dynamic adaptation enables the system to deliver enhanced alert information breadth while remaining versatile and user-controlled.
2Loss of information
If the digital radio broadcast receiver continuously monitors and processes all alert messages, then comprehensive alert information is delivered, but power consumption increases
Solution Approach 1:
The system performs partial action by selectively processing only those alert messages that match user-preselected criteria rather than continuously monitoring and processing all incoming alerts. The filtering mechanism evaluates each alert message against configured parameters (type, location, priority) and processes only relevant messages, thereby delivering comprehensive alert information for matched criteria while reducing overall power consumption through selective processing.
Solution Approach 2:
The system implements periodic action by monitoring alert messages at intervals and using sleep mode to reduce power consumption when no relevant alerts are present. The receiver periodically wakes to check for new alerts, filters them against user criteria, and returns to low-power state when unnecessary processing is detected, thus maintaining completeness of alert delivery while optimizing power usage through periodic rather than continuous operation.
3Ease of operation
If the system filters and selects alert messages based on user criteria, then relevant information is prioritized, but the device complexity increases
Solution Approach 1:
The system performs preliminary action by pre-configuring user criteria for alert filtering before actual alert messages arrive. Users set their preferences in advance (types of alerts, location parameters, priority levels), and the system stores these configurations for automatic application when alerts are received. This preliminary setup reduces the complexity of real-time filtering operations, as the decision logic is predetermined and stored, making the filtering mechanism simpler while still prioritizing relevant information effectively.
Data Source
AI summary
A method for rendering an alert message on a digital radio broadcast receiver is described. A digital radio broadcast signal is received at the digital radio broadcast receiver. Data corresponding to an alert message comprising type information for identifying a type of the alert message and message information is detected. If the type information satisfies a triggering condition for a type of alert message pre-selected by a user of the digital radio broadcast receiver, the message information is rendered at the digital radio broadcast receiver. A digital radio broadcast receiver that performs the method is also described.