Remote Control Ignoring Unintentional Key Presses
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Solution Overview
Problem
Conventional remote controls often inadvertently trigger commands when buttons are pressed unintentionally, disrupting the user's experience with audiovisual equipment.
Innovation Solution
A method and system that detect key presses and determine if they occur within a predefined threshold time period or correspond to unexpected key combinations, ignoring commands if they are deemed unintentional, and entering an ignore mode if no key presses are made for a set time, using biometric measurements and orientation analysis to assess intentional input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the remote control transmits commands for every key press, then the responsiveness and ease of operation is improved, but unintentional key presses cause harmful disruptions
Solution Approach 1:
The system performs preliminary analysis of key press patterns before executing commands. By detecting multiple key presses within a threshold time period or identifying unexpected key combinations, the system preemptively prevents unintentional commands from being transmitted to the audiovisual equipment.
Solution Approach 2:
The system implements feedback mechanisms by monitoring key press sequences and using this information to determine whether to transmit commands. The television receiver or remote control analyzes the pattern of key presses and provides feedback by either transmitting or blocking commands based on whether they appear intentional.
2Object-affected harmful factors
If the remote control analyzes key press patterns to filter unintentional commands, then the harmful factors are reduced, but the device complexity increases
Solution Approach 1:
The system applies partial analysis by focusing only on specific aspects of key press behavior - namely, the timing between presses and the sequence of keys pressed. Rather than analyzing all possible characteristics of key presses, the system selectively monitors these two parameters to identify unintentional input patterns.
Solution Approach 2:
The remote control or television receiver performs self-monitoring and self-correction by automatically detecting unintentional key press patterns and blocking the corresponding commands without requiring external intervention. The system serves itself by identifying and correcting its own erroneous command transmissions.
3Object-affected harmful factors
If multiple key presses within a threshold time are ignored, then unintentional commands are reduced, but intentional rapid key presses may be blocked
Solution Approach 1:
The system applies different evaluation criteria to different key press scenarios. By analyzing the specific sequence of keys pressed and comparing against expected combinations, the system can distinguish between unintentional rapid presses (such as buttons mashed together) and intentional rapid sequences (such as entering a code or changing channels quickly).
Data Source
AI summary
Various arrangements are described for ignoring inadvertent remote control key presses. A remote control may detect a first key press, the first key press being linked with a first command. The remote control may measure an orientation of the remote control with respect to a direction of gravity. The remote control may compare the measured orientation of the remote control with threshold orientation angles. The first command may be ignored based on comparing the measured orientation of the remote control with the threshold orientation angles.