Audio Feedback for Typing Error Detection on Compact Keyboards
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Solution Overview
Problem
Small computing devices, such as handheld devices with touch screens, often have keys that are physically close together, making it easy to press the wrong key, and users must rely on visual displays to detect typing errors, which can disrupt the flow of typing.
Innovation Solution
A system and method that associates unique sounds with significant element keys on a computing device's keyboard, allowing users to detect typing errors through audio feedback without needing to visually check the display, by using a sound engine to output distinct sounds for different keypresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If keys are placed physically close together on small handheld devices, then device portability is improved, but typing accuracy deteriorates due to increased likelihood of pressing wrong keys
Solution Approach 1:
The patent implements audio feedback by playing distinct sounds for different key presses. When a user presses a key, the system immediately plays a corresponding sound that confirms the key press and indicates which key was pressed. This real-time auditory feedback helps users verify their input without visually checking the display, thereby improving typing accuracy on compact devices with closely spaced keys.
2Manufacturing precision
If users visually check the display to detect typing errors, then typing accuracy is improved, but typing speed deteriorates due to interruption of typing flow
Solution Approach 1:
The patent replaces the visual feedback mechanism with an auditory feedback mechanism. Instead of requiring users to look at the display to confirm key presses and detect errors, the system plays distinct sounds through the device's speaker that provide immediate confirmation of which key was pressed. This substitution allows users to maintain their typing flow while still detecting errors through sound, thereby preserving typing speed while improving accuracy.
3Device complexity
If a single sound is assigned to all keys, then device complexity is reduced, but information transmission deteriorates as users cannot distinguish which key was pressed through sound alone
Solution Approach 1:
The patent segments the single sound feedback into multiple distinct sounds, with each sound corresponding to a specific key or group of keys. The sound engine is configured to play different audio signals depending on which key is pressed, allowing users to identify the pressed key through sound alone. This segmentation provides rich information feedback while maintaining relatively simple implementation through software-based sound selection and playback.
Data Source
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AI summary
A method for associating sounds with different keypresses, involving receiving an input of a first keypress from a keyboard including a plurality of keys, wherein the keyboard is associated with a computing device, determining whether a key corresponding to the first keypress is one of a plurality of significant elements, wherein the plurality of significant elements is a subset of the plurality of keys, determining a first sound event associated with the key, when the key is one of the plurality of significant elements, and outputting a first sound associated with the first sound event.