Detachable Drawing Unit Input Device for Simulating Writing Instrument Attributes
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Solution Overview
Problem
Current input devices for electronic devices, such as smartphones and tablets, limit the ability to replicate the practical writing experience of using instruments like brushes or pens, as they primarily rely on touch pens for drawing inputs, failing to accurately mimic the feel and output of traditional writing tools.
Innovation Solution
An input device system comprising a pen with detachable drawing units, including various contact units like brushes, and a communication chip to provide unique attributes to the electronic device, allowing it to recognize and simulate the attributes of different writing instruments, thereby enhancing the drawing experience by replicating the feel and output of practical writing tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a touch pen is used for drawing input, then the electronic device can receive drawing inputs, but it cannot accurately simulate the feel and output of traditional writing tools like brushes
Solution Approach 1:
The input device is divided into a pen body and detachable drawing units. Each drawing unit can be independently attached or detached, allowing the user to switch between different writing instrument types (e.g., brush, pencil, marker) while using the same pen body. This segmentation enables the electronic device to recognize different instrument attributes and simulate their unique characteristics accurately.
Solution Approach 2:
The pen body is designed as a universal platform that can accommodate multiple types of drawing units. The communication chip in the pen body can identify and adapt to different drawing unit types, enabling the single pen to perform multiple functions equivalent to having multiple separate writing instruments.
2Measurement precision
If detachable drawing units with communication chips are added to the pen, then the electronic device can recognize and simulate attributes of different writing instruments, but the device complexity increases
Solution Approach 1:
The communication chip and attribute storage functionality are extracted from the main pen body and integrated into the detachable drawing units. This allows the pen body to remain relatively simple while the drawing units carry the complexity of attribute identification. When a drawing unit is attached, the pen body automatically receives and processes the attribute information without requiring complex internal structure.
Solution Approach 2:
The communication chip acts as an intermediary between the drawing unit and the electronic device. It automatically transmits attribute information (such as brush type, hardness, size) when the drawing unit is attached to the pen, eliminating the need for manual input or complex recognition systems in the pen body or electronic device.
3Measurement precision
If the pen includes an input reactor and detachable drawing units, then the drawing experience resembles traditional tools, but the ease of operation decreases due to attachment and detachment requirements
Solution Approach 1:
The input device transitions from a static single-function pen to a dynamic multi-function system. The drawing units can be dynamically attached or detached based on the user's immediate needs, and the electronic device dynamically adapts to recognize and simulate the appropriate instrument attributes. This dynamic flexibility allows users to switch between different drawing characteristics as needed.
Solution Approach 2:
The drawing units are pre-configured with their specific attributes (brush type, hardness, size, etc.) stored in the communication chip before attachment. This preliminary preparation allows the electronic device to immediately recognize and simulate the correct characteristics upon attachment, eliminating the need for manual configuration or adjustment during use.
Data Source
AI summary
An input method of an electronic device using an input device including a drawing unit is provided. The input method includes acquiring drawing unit related information, confirming an attribute of the drawing unit based on the acquired drawing unit-related information, receiving a drawing input by an input device, to which the drawing unit is attached, using a touch panel of the electronic device, and outputting a drawing expression through the display of the electronic device in response to an attribute of the drawing unit and a drawing pattern of the drawing input.