Audio Control Menu Rotary Encoder for One-Handed Operation
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Solution Overview
Problem
Existing menu systems are difficult to navigate with one hand without visual assistance, posing challenges for individuals operating machinery, driving, or with visual impairments, as they require manual operation of complex keyboards without visual feedback.
Innovation Solution
An audio-enabled control menu system using a communications headset with a rotary encoder and microcontroller that outputs audio segments for menu navigation, allowing users to select options using a single hand without visual reference, with menu options organized in a decision tree structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a visual menu system is used for control selections, then the operator can see and identify menu options, but the operator cannot maintain visual attention on the task environment (e.g., road, aircraft exterior, machine operation)
Solution Approach 1:
The patent replaces the visual-mechanical menu system with an acoustic-electronic system. Audio output devices (speakers, headphones) deliver menu options and status information acoustically, eliminating the need for visual attention to the menu interface while maintaining full menu navigation capability through voice and auditory feedback
Solution Approach 2:
The patent introduces audio signals as an intermediary between the menu system and the operator. Instead of direct visual contact with the menu display, the operator receives menu information through acoustic mediation, allowing visual attention to remain on the task environment while menu navigation proceeds through auditory channels
2Adaptability or versatility
If a complex keyboard interface is used for menu navigation, then comprehensive control options are available, but one-handed operation becomes difficult and error-prone
Solution Approach 1:
The patent implements a multi-functional rotary encoder that combines multiple control capabilities in a single interface element. The encoder can detect rotational direction (for navigating menu options), rotational position (for selecting specific options), and pressing actions (for confirmation), replacing the need for separate keyboard keys and enabling comprehensive control with one hand
Solution Approach 2:
The patent merges multiple control functions (navigation, selection, confirmation) into a single integrated audio interface system. The rotary encoder combines directional input, positional input, and selection input mechanisms, while the audio output system consolidates menu display, status feedback, and confirmation signals into unified auditory channels
3Ease of operation
If audio feedback is added to the menu system, then one-handed operation without visual reference becomes possible, but the device complexity increases
Solution Approach 1:
The microcontroller serves multiple functions: it processes encoder input signals, manages audio output generation, stores menu structure data, and executes control actions. This multi-functionality consolidates what would otherwise require separate components into a single integrated processing unit, reducing overall system complexity
Solution Approach 2:
The patent uses pre-stored audio segments (voice prompts, menu options, status messages) in memory rather than generating audio in real-time. This copying approach allows complex audio feedback to be delivered through simple playback operations, reducing the processing complexity and component requirements
Data Source
AI summary
An audio enabled control menu system, method and device is provided. Embodiments of the present invention include an encoder including an input device actuation of the encoder by an operator of the control menu device; memory including a menu structure and a plurality of audio segments stored in the memory; and a microcontroller in operable communication with the encoder and the memory, the microcontroller further configured to receive menu navigation input from the encoder and output one of the plurality of audio segments in response to the menu navigation input, the microcontroller further configured to execute predetermined control actions in response to the menu navigation input. Embodiments of the invention transmit menu options to an operator in an audio format such that the operator can browse and select menu options with one hand and does not need to look at a visually displayed menu.