Multi-color Stylus Capacitive Color Transmission
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Solution Overview
Problem
Existing styluses lack the ability to seamlessly change colors on touch screens, requiring users to manually select colors from on-screen pallets, which is cumbersome and disrupts workflow, especially in applications like note-taking or commentary where frequent color changes are necessary.
Innovation Solution
A stylus with an integrated color selection mechanism and a capacitive nib that communicates color changes to a computing device, allowing users to select and apply colors directly on the stylus for immediate application on the screen, using a combination of buttons and a display unit for color indication and a variable capacitor for capacitance-based color transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If users manually select colors from on-screen pallets, then color selection capability is provided, but workflow is disrupted and operation becomes cumbersome
Solution Approach 1:
The color selection functionality is extracted from the on-screen interface and embedded directly into the stylus device. The stylus contains an input mechanism for receiving color selections and a transmitting unit that communicates the selected color to the computing device, eliminating the need for users to interact with on-screen color pallets and maintaining workflow continuity.
2Ease of operation
If color selection is integrated into the stylus, then workflow continuity is maintained, but device complexity increases
Solution Approach 1:
The stylus is designed as a multi-functional device that combines the functions of a writing tool and a color selection input device. The input mechanism on the stylus body allows users to select colors, while the transmitting unit communicates this information wirelessly or through contact with the computing device, consolidating multiple functions into a single device.
3Device complexity
If capacitance-based color transmission is used, then color communication is achieved without additional hardware, but measurement precision requirements increase
Solution Approach 1:
The patent replaces physical mechanical communication mechanisms with electrical capacitance-based communication. The transmitting unit utilizes capacitance changes to encode and transmit color selection information to the computing device, eliminating the need for additional hardware components such as buttons, switches, or wireless communication modules.
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
Enables quick and precise color switching without the need for on-screen controls, enhancing user experience by allowing frequent color changes with low latency and maintaining workflow continuity.
Implementation Method 1
A capacitance of the stylus is calculated. The capacitance of the stylus is stored in association with the color.
Data Source
AI summary
A stylus, in accordance with one embodiment, includes an elongated body having an input mechanism for receiving user selection of a color to be output upon interaction of the stylus with a computing device. The stylus also includes a nib functional as a transmitting unit to publish the selected color to a receiver of the computing device when the nib is in contact and/or near contact with the receiver. A computer-implemented method for synchronizing a stylus having color selection to a computing device, in accordance with one embodiment, includes outputting a request to a user to select a color on the stylus and touch the stylus to a receiver of the computing device. Touch of the stylus to the receiver of the computing device is detected. A capacitance of the stylus is calculated. The capacitance of the stylus is stored in association with the color.