Pad Attachment Wireless Communication for Flexible Input Layouts
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Solution Overview
Problem
Existing virtual input devices require a uniquely determined shape and position for the determination conductor, restricting the layout design of the operation pad and limiting the freedom of design.
Innovation Solution
A pad attachment with a memory and communication elements is attached to an operation pad, enabling wireless communication with a touch device, allowing the transmission of device information to improve design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a determination conductor is added to correctly reflect user operations, then measurement precision is improved, but device complexity increases and layout design freedom is restricted
Solution Approach 1:
The patent uses the capacitive touch sensor's existing conductor pattern as a template to generate the determination conductor pattern. By copying the touch sensor's conductor layout, the system achieves accurate operation detection without requiring a separate, complex determination conductor design, thus resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The touch sensor's conductor serves dual purposes: both as the sensing element for touch detection and as the determination conductor for virtual input device identification. This multi-functionality eliminates the need for additional dedicated determination conductors, reducing device complexity while maintaining operation detection accuracy
2Reliability
If a determination conductor is provided at a position without interference with the operating unit, then reliability is improved, but the area available for operation pad design is reduced
Solution Approach 1:
The patent merges the determination conductor function with the touch sensor's existing conductor structure. By combining these functions into a single integrated system rather than placing them separately, the design maintains operation detection reliability while preserving the full area of the operation pad for layout design freedom
3Measurement precision
If the shape and arrangement pattern of the determination conductor are uniquely determined, then measurement precision is improved, but adaptability of the operation pad design is reduced
Solution Approach 1:
The patent makes the determination conductor pattern dynamic by generating it based on the detected disposition of the operation pad rather than using a fixed predetermined pattern. This allows the determination conductor to adapt to different operation pad layouts while maintaining accurate operation detection, thus resolving the contradiction between measurement precision and design adaptability
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 the degree of freedom in designing the operation pad by allowing flexible placement and configuration of virtual input devices without additional structural constraints.
Implementation Method 1
a capacitive type touch sensor
Implementation Method 2
one or more communication elements configured to perform wireless communication
Data Source
AI summary
A pad attachment is provided, which is attached to an operation pad that has at least one physical operation element and that is configured to be disposed on a touch device including a capacitive type touch sensor. The pad attachment includes a memory configured to store device information related to a virtual input device including the operation pad. The pad attachment includes one or more communication elements configured to perform a wireless communication with the touch device via the touch sensor or via a planar sensor different from the touch sensor. The pad attachment includes a transmitting circuit configured to transmit a transmission signal including the device information read from the memory, via the one or more communication elements.