Haptic Pen Vibration Routing for Targeted Finger Feedback
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Solution Overview
Problem
Existing pens that generate tactile feedback through external or end-mounted vibrating units face issues with ungainly design, potential failure, and inefficient power consumption due to vibrations affecting unintended areas.
Innovation Solution
A pen design incorporating a built-in haptic element with an offset transmitting section inside the housing, allowing vibration to be transmitted to a position offset from the haptic element's fixation, providing tactile feedback to the finger position without shaking the entire pen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an external vibrating unit is attached to the pen, then tactile feedback can be provided to the finger position, but the design becomes ungainly and prone to failure
Solution Approach 1:
The vibrating unit is nested inside the pen housing rather than being attached externally. The housing itself serves as the vibration transmission structure, eliminating the need for separate external vibration components and reducing overall device complexity while maintaining tactile feedback functionality.
Solution Approach 2:
The pen housing serves dual functions: as the protective enclosure for internal components and as the vibration transmission structure. This multi-functionality eliminates the need for separate external vibrating units, reducing design complexity while maintaining tactile feedback capability.
2Ease of operation
If a vibrating unit is installed at the end of the pen to shake the entire pen, then tactile feedback can be provided, but power consumption increases due to vibration of areas other than the finger position
Solution Approach 1:
The vibration is localized to specific regions of the housing rather than shaking the entire pen. By strategically positioning vibrating elements within the housing and utilizing the housing structure, vibration is concentrated at the finger contact area, reducing energy waste on unnecessary regions while maintaining effective tactile feedback.
Solution Approach 2:
The vibration transmission is segmented and directed to specific locations within the housing rather than uniformly shaking the entire pen. This targeted approach reduces the total mass being vibrated, thereby lowering power consumption while maintaining tactile feedback effectiveness at the finger position.
3Ease of operation
If the entire pen is shaken to provide tactile feedback, then the finger position receives vibration, but areas other than the finger position are also vibrated reducing effectiveness and increasing power consumption
Solution Approach 1:
The vibration is localized to specific regions of the housing rather than shaking the entire pen. By strategically positioning vibrating elements within the housing and utilizing the housing structure, vibration is concentrated at the finger contact area, reducing energy waste on unnecessary regions while maintaining tactile feedback effectiveness.
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
The solution enables targeted tactile feedback to the finger position while minimizing power consumption and preventing the entire pen from vibrating, enhancing user experience and efficiency.
Implementation Method 1
The offset transmitting section, in operation, transmits a vibration of the haptic element to a position offset from a position where the haptic element is fixed in the structure
Data Source
AI summary
A pen includes a pressure sensor that detects pressure applied to a tip of a core body, a transmitter that transmits a signal based on a result from the pressure sensor, a haptic element controlled based on an instruction from a processor, an offset transmitting section that includes a base, a first branch that extends from the base toward the tip of the core body, and a second branch that extends from the base toward the tip of the core body, where the offset transmitting section transmits vibration of the haptic element to a position offset from a position where the haptic element is arranged, and a buffer material arranged between the haptic element and the pressure sensor. The buffer material is arranged between the first branch and the second branch of the offset transmitting section. The buffer material at least partially absorbs the vibration of the haptic element.