Handwriting Input Surface With Erasable Display and Data Transfer Control
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Solution Overview
Problem
Existing handwriting input devices require separate writing instrument functions for electronic pens, increasing cost and complexity, and lack effective management of display information associated with electronic data, leading to potential data loss during erasure and transmission.
Innovation Solution
A handwriting input device with a display section that visually erases all input information upon user command, incorporates a position detection sensor to track input positions, and includes a control circuit to manage and transmit electronic data reliably to an external device, ensuring data association and preventing superimposition of new data on previous inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a display panel and display control circuit are included to display handwritten information for user visual confirmation, then the reliability of information display is improved, but the device complexity and cost increase
Solution Approach 1:
The patent extracts the display function from the traditional tablet terminal configuration. Instead of using a display panel with display control circuit, the invention uses a display board that can be erased, separating the display function from the data storage function. This allows the position detection sensor to directly detect pen positions without requiring complex display hardware to show the information.
Solution Approach 2:
The patent creates a copy of the handwritten information on the display board that can be visually confirmed by the user. The display board serves as a temporary copy medium that mirrors the input actions, providing visual feedback without requiring permanent storage or complex display hardware.
2Ease of operation
If paper is used to store handwritten input traces, then the ease of operation is improved for storage purposes, but the loss of time increases due to frequent paper replacement
Solution Approach 1:
The patent implements a reusable display board that can be erased and reused multiple times. Instead of discarding paper after use, the display board retains the ability to show handwritten information until explicitly erased, then can be reused. This recovers the utility of the input surface without the need for continuous paper replacement.
Solution Approach 2:
The patent introduces dynamic erasure capability to the display board, allowing it to transition between showing information and being blank. This dynamic state change enables the system to adapt between storage mode (when information needs to be viewed) and readiness mode (when the surface needs to be cleared for new input), eliminating the static limitation of paper.
3Productivity
If electronic data is stored in memory without reliable transmission control, then the productivity is improved for data storage, but the reliability of data management deteriorates due to potential data loss
Solution Approach 1:
The patent implements a feedback mechanism where the control circuit monitors the transmission status of electronic data from memory to external devices. When transmission is complete, the system provides feedback by erasing the data from memory, confirming successful transfer. This feedback loop ensures data management reliability by verifying transmission completion before clearing storage.
Solution Approach 2:
The patent takes preliminary action by checking whether electronic data can be transmitted to an external device before actually performing the transmission. This preliminary check prevents failed transmissions and ensures that data is only transmitted when communication conditions are favorable, thereby maintaining reliability of data management.
4Adaptability or versatility
If the electronic pen includes writing instrument function separately from electronic pen function, then the adaptability is improved for different input modes, but the device complexity and cost increase
Solution Approach 1:
The patent makes the electronic pen universal by enabling it to perform both electronic input functions and writing instrument functions through a single device. The pen can detect positions on the display board for electronic input while also being capable of physical writing on the board surface, eliminating the need for separate writing instrument components.
Data Source
AI summary
A handwriting input device includes a display section which includes a display surface and which, in operation, displays handwritten input information that is handwritten on the display surface, a position detection sensor which is disposed such that a position detection area of the position detection sensor is superimposed on a display area of the display surface and which, in operation, detects a position corresponding to the handwritten input information, a memory which, in operation, stores electronic data according to the position that corresponds to the handwritten input information and that has been detected by the position detection sensor, a transmission circuit which, in operation, transmits the electronic data stored in the memory to an external device, and a control circuit which, in operation, controls the transmission of the electronic data stored in the memory to the external device via the transmission circuit.