Recording Media Interface Lockout Against Accidental Input
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Solution Overview
Problem
Electronic devices, such as drive recorders, face issues where accidental input from luggage in a vehicle's luggage storage space can shift the device to a setting mode, causing recording suspension or failure, especially when a recording medium is housed within the device.
Innovation Solution
The electronic device is designed with a user control interface that disables input when a recording medium is housed, preventing accidental shifts to a device setting mode by using a controller and acquisition interface to determine the presence of the recording medium and adjust user control accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user control interface remains enabled during operation, then the device can be controlled and settings can be adjusted, but accidental input from luggage can shift the device to setting mode causing recording suspension or failure
Solution Approach 1:
The patent applies dynamics by making the user control interface state changeable based on operational conditions. The control interface is enabled during setup phase and disabled during recording phase, allowing the system to adapt its responsiveness to user input based on the current operational state, thus preventing accidental interruptions while maintaining necessary controllability during configuration
Solution Approach 2:
The patent implements feedback by continuously monitoring the operational state of the device and automatically adjusting the enablement status of the user control interface accordingly. When the device transitions to recording mode, the system detects this state change and automatically disables the control interface, creating a closed-loop control mechanism that prevents accidental input during critical recording operations
2Reliability
If the user control interface is disabled to prevent accidental input, then recording stability is improved, but the device cannot be controlled or adjusted when needed
Solution Approach 1:
The control interface enablement status dynamically changes based on the device's operational phase. During setup and configuration phases, the interface remains enabled to allow user input. When recording begins, the interface automatically disables to prevent accidental input, and re-enables only when recording stops, thus providing controllability when needed while ensuring stability during critical operations
Solution Approach 2:
The patent applies preliminary action by disabling the user control interface in advance before potential accidental input can occur. The system proactively transitions the control interface to a disabled state when entering recording mode, preventing rather than reacting to accidental interruptions, thus ensuring recording stability without permanently sacrificing controllability
Data Source
AI summary
A first user control interface receives an input. A controller executes control determined by an input via the first user control interface. A housing is capable of housing a recording medium. An acquisition interface acquires housing information related to whether the recording medium is housed in the housing. The controller disenables the input via the first user control interface when the housing information acquired by the acquisition interface indicates that the recording medium is housed.