Infrared Interface Button Sequence Prevents Inadvertent Configuration
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Solution Overview
Problem
Infrared buttons on electronic devices can be unintentionally activated due to reflection of infrared radiation by objects, leading to inadvertent configuration of the devices.
Innovation Solution
Implementing a button sequence that requires the activation of at least two infrared buttons, either sequentially or simultaneously, with optional time limits, to configure the device, and displaying the sequence on a screen for user input to prevent accidental activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If infrared buttons are used for device configuration, then ease of operation is improved, but reliability deteriorates due to inadvertent activation by reflected infrared radiation
Solution Approach 1:
The system performs preliminary detection of infrared radiation patterns before executing configuration commands. The microprocessor analyzes the detected infrared signals to determine whether they represent intentional button presses or inadvertent reflections, preventing false activations before they can cause unwanted device changes
Solution Approach 2:
The system implements feedback by continuously monitoring infrared radiation patterns and using this information to validate subsequent button press detections. The microprocessor compares detected patterns against expected patterns for intentional activation, using the feedback from pattern analysis to determine whether to proceed with configuration changes
2Reliability
If a button sequence requiring multiple infrared button activations is implemented, then reliability is improved by preventing inadvertent configuration, but device complexity increases
Solution Approach 1:
The microprocessor performs multiple functions: it detects infrared radiation, analyzes radiation patterns, validates button sequences, and executes configuration commands. By consolidating these functions into a single intelligent component, the system achieves reliable inadvertent activation prevention without proportionally increasing overall device complexity
Solution Approach 2:
The system uses its existing infrared detection capability to serve the additional function of validating button sequences. The microprocessor leverages the infrared detector's output to both detect intentional presses and distinguish them from inadvertent reflections, allowing the system to prevent false activations using resources already allocated for normal operation
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 method effectively reduces the likelihood of inadvertent configuration by ensuring that only intentional user input activates the device, minimizing unintended device operations.
Implementation Method 1
Infrared radiation is directed from the infrared emitter towards the lens. Since at least a portion of the infrared radiation passes through the lens, when an object, such as, for example, a persons finger is placed on the lens, at least a portion of the infrared radiation is reflected and detected by the infrared detector.
Implementation Method 2
when an object, such as, for example, a persons finger is placed on the lens, at least a portion of the infrared radiation is reflected and detected by the infrared detector
Data Source
AI summary
The present invention relates to a method, computer program product, and system for preventing an inadvertent configuration of an electrical device provided with an infrared interface (30). The method, computer program product, and system include activation of one or more infrared buttons (31, 32, 33, or 34) provided on the infrared interface (30) in order to configure the electrical device. The method, computer program product, and system include a display (40) that indicates an infrared button sequence), wherein said button sequence is entered before the configuration occurs and includes activation of at least a first infrared button (31, 32, 33, or 34) and at least a second infrared button (31, 32, 33, or 34).