Touch Panel Signal Transmission for Compact Wireless Communication
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Solution Overview
Problem
Existing touch communication technologies in electronic devices, such as NFC, often require inductive card readers, increasing device size and complexity, whereas touch panel devices using electric fields for communication can reduce size and cost but lack versatility in signal delivery for triggering various actions.
Innovation Solution
A touch communications device with a processor-controlled touch panel that can transmit and receive signal combinations through multiple regions, allowing for spatial, temporal, and frequency-domain signal arrangements to trigger specific actions in other devices, enhancing versatility and resistance to interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If NFC technology with inductive card readers is used for touch communications, then communication functionality is achieved, but device size and structural complexity increase
Solution Approach 1:
The patent extracts the communication functionality from the traditional NFC architecture by removing the inductive card reader component. The touch panel itself is repurposed to perform both touch sensing and wireless communication functions, eliminating the need for separate NFC hardware components.
Solution Approach 2:
The touch panel is designed to serve multiple functions: it acts as both the touch sensing interface and the wireless communication antenna. The same touch panel structure that detects user touches also transmits and receives electromagnetic signals for NFC communications, achieving multi-functionality with a single component.
2Device complexity
If touch panel devices use electric fields for communication without inductive card readers, then device size is reduced, but versatility in signal delivery for triggering various actions is limited
Solution Approach 1:
The touch panel is divided into multiple independently controllable regions. Each region can be selectively activated to transmit different signal patterns, enabling diverse communication protocols and triggering different actions. This segmentation allows the system to achieve versatility without adding physical components.
Solution Approach 2:
The patent utilizes various parameters of the electric field including frequency, amplitude, duration, and spatial distribution to encode different information and trigger different actions. By modulating these parameters, the system achieves versatile signal delivery capabilities while maintaining a compact form factor.
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 efficient and versatile communication by allowing different signal combinations to trigger various actions in other devices, improving device functionality and reducing size and complexity compared to traditional NFC technologies.
Implementation Method 1
the communications medium used by the first touch panel device 101 is the electric field portion whose electric field direction is pointing toward the second touch panel device 102
Implementation Method 2
Near Field Communication (NFC) can be regarded as a contactless identification and interaction technology, and can be used for performing short distance wireless communications between mobile devices through a method of near field magnetic coupling
Data Source
AI summary
A touch communications device includes a first touch panel and a processor. The first touch panel includes a first region and a second region. The processor is arranged to control the first region and/or the second region to transmit a signal when a second touch panel of another touch communications device is close to or in contact with the first touch panel.