Smart Pen and Tablet Tactile Feedback for Input Detection
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Solution Overview
Problem
Existing information output devices face challenges in providing easy and stable tactile feedback, particularly for users with visual impairments, limiting user convenience and effective detection of input operations.
Innovation Solution
An input feedback-based smart pen and protruding feedback-based smart tablet that include an input unit, recognition unit, expression unit, and operation control unit, allowing tactile feedback through protruding expression members and magnetic fields to facilitate user interaction and output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If visual output methods are used to display input information, then information can be presented to users, but users with visual impairments cannot effectively sense or detect the output
Solution Approach 1:
The patent replaces visual output mechanisms with tactile feedback mechanisms. Expression members physically protrude from the tablet surface to create tactile sensations, substituting the optical display system with a mechanical touch-based feedback system that visually impaired users can detect through their sense of touch.
Solution Approach 2:
The patent introduces tactile expression members as an intermediary between the digital input information and the user's sensory perception. These physical protrusions serve as a mediator that translates invisible digital data into detectable tactile forms, bridging the gap between visual displays and tactile perception.
2Ease of operation
If tactile feedback is provided through protruding members, then users can easily sense input information, but the device structure becomes more complex
Solution Approach 1:
The expression members are designed to be dynamically controllable, transitioning between protruded and retracted states based on input detection. This dynamic capability allows the same physical structure to serve multiple functions: providing tactile feedback when needed and maintaining a flat surface when not in use, thereby reducing overall structural complexity.
Solution Approach 2:
The expression members serve multiple functions: they act as tactile feedback elements for visually impaired users, maintain a flat surface for visual users when retracted, and can be controlled through magnetic fields. This multi-functionality reduces the need for separate components for different user types and feedback modes.
3Loss of information
If multiple expression members are used to convey different information, then information delivery is enhanced, but control and stability of output becomes difficult
Solution Approach 1:
The system incorporates feedback mechanisms where the tablet detects the user's input through the input unit, processes this information, and then activates specific expression members based on the detected input. This closed-loop feedback ensures that the protrusion pattern accurately reflects the user's input while maintaining stable and predictable output control.
Solution Approach 2:
The system controls multiple expression members by changing their physical state parameter (protruded vs. retracted) based on the detected input information. Different combinations and patterns of protrusions encode different information, allowing rich information delivery while maintaining simple binary control states for each member.
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 convenience by enabling easy sensing of input information, particularly for visually impaired users, through tactile feedback, improving the detection and confirmation of input operations.
Implementation Method 1
the expression unit may move by a magnetic field generated by the one or more magnetic bodies
Implementation Method 2
the input pen may include one or more magnetic bodies, and the expression unit may move by a magnetic field generated by the one or more magnetic bodies
Data Source
AI summary
Provided is an input feedback-based smart pen including: a main body having a shape that enables manipulation of a user; an input unit connected to the main body and performing an input operation by a manipulation of the user; an input information recognition unit configured to recognize information input by a user through the manipulation of the input unit; and an expression unit including one or more expression members formed in an area of an outer surface of the main body to be detectable by the user to express information corresponding to input information recognized by the input information recognition unit.