Stylus Color Transmission With Pen-Tip Visual Feedback
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Solution Overview
Problem
Existing styluses lack visual feedback at the pen tip and require line of sight diversion for color checking, impairing operability and lacking distinguishable visual cues during operation.
Innovation Solution
A stylus with an optical sensor and color presenting circuit at the pen tip provides visual feedback by emitting light corresponding to detected color information, allowing distinguishable presentation without diverting the line of sight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display section is provided in the vicinity of the clip portion rather than on the pen point side, then the color can be displayed, but the line of sight must be temporarily shifted from the pen point to the display section, impairing operability
Solution Approach 1:
The patent moves the color presentation function from a distant display section (spatial dimension) to the pen tip itself (local dimension). By embedding the color presenting circuit at the pen tip, the system transitions from requiring line-of-sight movement to providing immediate local visual feedback, resolving the contradiction between operability and visual feedback.
Solution Approach 2:
The patent creates a visual copy of the color information at the pen tip location itself. Instead of displaying color information at a separate display section, the system projects or emits light corresponding to the detected color directly at the pen tip, providing immediate visual feedback without requiring the user to shift their line of sight.
2Ease of operation
If the color presenting circuit is disposed in the pen tip portion, then visual feedback can be provided at the pen point without diverting line of sight, but the device complexity increases
Solution Approach 1:
The patent merges multiple functions (color detection, color presentation, and position indication) into a single integrated unit at the pen tip. By combining the optical sensor and color presenting circuit in the same location, the system reduces overall system complexity despite adding local functionality, as it eliminates the need for separate display section infrastructure.
Solution Approach 2:
The pen tip becomes self-sufficient by incorporating both the optical sensor for color detection and the color presenting circuit for visual feedback. This self-service capability allows the pen to provide immediate visual feedback at its own location without relying on external display sections, improving operability while managing complexity through functional integration.
3Loss of information
If distinguishable presentation patterns are used for detected color information and transmitted color information, then visual feedback clarity is improved, but the device complexity increases
Solution Approach 1:
The patent uses different color presentation patterns (such as different colors, blinking rates, or illumination intensities) to distinguish between detected color information and transmitted color information. This allows the system to provide clear visual feedback about different operational states using simple optical variations rather than complex electronic control mechanisms.
Solution Approach 2:
The patent employs periodic action patterns such as blinking or pulsing at different frequencies to distinguish between different types of color information. By using temporal patterns (continuous vs. blinking vs. pulsing), the system provides distinguishable visual feedback without requiring complex additional hardware, managing device complexity while improving feedback clarity.
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 operability and user interface by enabling visual recognition of color presentation and operation states directly at the pen tip, improving usability and feedback clarity.
Implementation Method 1
an optical sensor for detecting incident light
Implementation Method 2
a color presenting circuit for presenting the color information obtained by the optical sensor; wherein the color presenting circuit is disposed in a pen tip portion of the stylus
Data Source
AI summary
Color information obtained by an optical sensor of a stylus can be displayed at a pen tip of the stylus with good visibility, and visual feedback is provided as a suitable user interface when the color information is transmitted from the stylus to an electronic apparatus. A stylus includes: a trigger signal generating circuit; an optical sensor that detects incident light; a memory circuit that stores color information of the incident light detected by the optical sensor; a color presenting circuit which is disposed at a pen tip of the stylus and which presents a color corresponding to the color information; and a control circuit. The control circuit presents the color information detected by the optical sensor using the color presenting circuit at the pen tip, and controls the color presenting circuit in response to a trigger signal from the trigger signal generating circuit when transmitting the color information to the electronic apparatus.