Common Digitizer for Dual-Surface Smart Device Input
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Solution Overview
Problem
Current smart devices with multiple surfaces for writing and drawing require multiple digitizers to convert analog inputs into digital format, making them costly to produce and expensive for consumers.
Innovation Solution
A smart device with a common digitizer positioned between two interfaces, utilizing an electromagnetic resonance panel with sensors arranged in a grid pattern to detect inputs from both interfaces, allowing for simultaneous processing and feedback display across both interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple digitizers are used to enable writing and drawing on multiple surfaces, then input detection capability is improved, but manufacturing cost and device price increase
Solution Approach 1:
The single digitizer is designed to perform multiple functions by detecting inputs from both the first interface (front surface) and the second interface (back surface). The digitizer uses electromagnetic resonance sensing that can detect stylus inputs through both interfaces, allowing one component to replace what would traditionally require two separate digitizers, thereby reducing manufacturing cost while maintaining input detection capability
Solution Approach 2:
The patent merges the functionality of multiple digitizers into a single common digitizer positioned between the two interfaces. By combining the sensing capabilities and using a shared controller, the system achieves multi-surface input detection with reduced component count, lower manufacturing complexity, and decreased overall device cost
2Ease of manufacture
If a common digitizer is used for both interfaces, then manufacturing cost is reduced, but the complexity of detecting inputs from both surfaces simultaneously increases
Solution Approach 1:
The common digitizer acts as an intermediary component positioned between the first and second interfaces. It receives electromagnetic signals from the stylus through both interfaces and converts them into digital input data. This intermediary role simplifies the overall system architecture by providing a single point of detection rather than requiring separate detection systems for each interface
Solution Approach 2:
The controller is designed to handle multiple input sources through a unified processing architecture. It can distinguish and process inputs from either the first interface or the second interface based on signal characteristics, providing versatile input handling capability within a single control unit, thereby managing complexity while maintaining cost-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
Enables two user interfaces to function with a single digitizer, reducing production and sales costs while maintaining effective input detection and feedback capabilities.
Implementation Method 1
The electromagnetic resonance panel includes a plurality of sensors each configured to generate the magnetic field and detect the magnetic field at a preset resonance frequency
Implementation Method 2
The electromagnetic resonance panel includes a plurality of sensors each configured to generate the magnetic field and detect the magnetic field at a preset resonance frequency
Data Source
AI summary
A smart device comprising a first interface configured to transmit a first input from a user, a second interface configured to transmit a second input from the user, a digitizer positioned between the first interface and the second interface, and wherein the digitizer is configured to receive the first input from the user through the first interface and the second input from the user through the second interface.