Haptic Text Input Interface for Mobile Devices
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Solution Overview
Problem
Current text input methods for mobile devices lack effective haptic feedback to enhance user experience and accuracy in text completion, particularly in providing confidence levels for suggested words and phrases.
Innovation Solution
Implementing a system with a processor, actuator, and haptic effect module that generates haptic signals based on the confidence level of text entry suggestions, providing tactile feedback to users through a dynamic key or text input interface, which includes a hidden on-screen keyboard that can be restored for selection and augmented with haptic effects indicating confidence levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If predictive text technology is used to suggest words based on serialized input, then text entry speed is improved, but user confidence in suggestion accuracy cannot be effectively communicated
Solution Approach 1:
The patent introduces haptic feedback as an intermediary channel to communicate confidence level information. The haptic actuator serves as a mediator between the predictive text system and the user, translating abstract confidence probabilities into tangible tactile sensations that users can perceive without visual feedback.
Solution Approach 2:
The feedback mechanism is segmented into multiple haptic patterns corresponding to different confidence levels. Each confidence level (e.g., high, medium, low) is assigned a distinct haptic pattern, allowing users to differentiate between suggestion qualities through tactile discrimination rather than visual inspection.
2Loss of information
If visual displays are used to show confidence levels for text suggestions, then information is provided, but user attention is diverted from the primary task
Solution Approach 1:
The patent replaces the visual display mechanism with a haptic feedback mechanism. Instead of using visual channels (screen displays, icons, or text indicators) to convey confidence levels, the system uses mechanical vibration and tactile feedback through the actuator, allowing users to perceive information through touch rather than sight.
Solution Approach 2:
The system implements immediate haptic feedback that corresponds directly to the confidence level of each suggested word. As the predictive text engine calculates confidence levels, the haptic actuator provides real-time tactile feedback, allowing users to adjust their selection based on felt sensations rather than visual confirmation.
3Ease of operation
If haptic feedback is added to indicate confidence levels, then user experience is enhanced, but device complexity increases
Solution Approach 1:
The haptic actuator serves multiple functions within the predictive text system. It not only indicates confidence levels but can also provide tactile confirmation for selected words, guide users through the selection process, and potentially indicate system states such as loading or error conditions, thereby justifying its inclusion through multi-functionality.
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
Enhances user experience by reducing errors and increasing text completion speed through intuitive tactile feedback, allowing users to quickly assess the confidence level of suggestions without relying solely on visual displays.
Implementation Method 1
One or more haptic effects can be identified and provided in conjunction with display, selection, or use of one or more of the entry suggestions to aid in the use of the engine or algorithm. The haptic effects can represent a confidence level with respect to one or more of the entry suggestions or may otherwise indicate the relative success of the engine/algorithm.
Data Source
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AI summary
When units of serialized input are analyzed by an engine or algorithm that provides a plurality of entry suggestions for competing or replacing a unit of the serialized input, one or more haptic effects can be identified and provided in conjunction with display, selection, or use of one or more of the entry suggestions to aid in the use of the engine or algorithm. The haptic effects can represent a confidence level with respect to one or more of the entry suggestions or may otherwise indicate the relative success of the engine/algorithm. For example, the serialized input may comprise characters input to a mobile or other device. The engine or algorithm may suggest words or phrases with varying degrees of confidence, with the confidence with respect to some or all of the suggestions communicated by use of haptic effects. Additional embodiments include dynamic text input interfaces, haptically-enhanced serial presentation of content, and interfaces that provide haptic effects at a first device based on remote text entry, display, reading, or other activity at a different device.