Wireless Keyboard Modular Keystroke RFID Power

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Solution Overview

Problem

Conventional keyboards lack flexibility in keystroke allocation, as users cannot adjust key positions or values, and adding or removing keystrokes is not possible, while wireless keyboards require power storage devices that may run out of battery, affecting convenience.

Innovation Solution

A wireless keyboard utilizing RFID technology with resonating circuits, chips, and switches allows for non-contact communication and power induction, enabling flexible keystroke allocation and removal without the need for batteries, allowing users to adjust key values and positions, and add or remove keystrokes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional wired keyboard is used, then the keyboard structure is simple and stable, but the user cannot adjust key positions or values, and cannot add or remove keystrokes

Engineering Contradiction:

Improveflexibility of keystroke allocationVSAvoidkeyboard structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The keyboard is divided into independent keystroke units, each containing a resonating circuit and switch. These modular keystrokes can be independently added, removed, or repositioned, enabling flexible allocation while maintaining simple individual structures.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each keystroke unit serves multiple functions: it acts as a mechanical input element, contains a resonating circuit for wireless communication, and includes a switch for circuit control. This multi-functionality reduces overall system complexity while enhancing adaptability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If a wireless transmitting module and battery are added to enable wireless operation, then wireless transmission is achieved, but the battery may run out of electricity, affecting convenience of usage

Engineering Contradiction:

Improveconvenience of usageVSAvoidcontinuous operation

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The resonating circuit in each keystroke automatically generates power through electromagnetic induction when receiving signals from the reader. This self-powered mechanism eliminates the need for external batteries, ensuring continuous operation without power depletion concerns.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The wireless communication operates through periodic signal exchange between the reader and keystroke resonating circuits. The reader emits signals at regular intervals, and keystrokes respond when activated, creating a reliable periodic communication pattern that ensures continuous operation.

Inventive Principle:

Principle #19Periodic action

3Adaptability or versatility

If resonating circuits and switches are integrated into each keystroke, then wireless transmission and flexible allocation are achieved, but the device complexity increases

Engineering Contradiction:

Improveflexibility of keystroke allocationVSAvoidkeyboard structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The keyboard system is segmented into independent keystroke modules, each with integrated resonating circuits and switches. This segmentation allows each unit to be independently configured and replaced, achieving flexibility while keeping individual component complexity manageable.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple functions (mechanical switch, resonating circuit, wireless communication) are merged into a single integrated keystroke unit. This consolidation reduces the number of separate components and connections needed, thereby reducing overall system complexity despite the advanced functionality of each unit.

Inventive Principle:

Principle #5Merging (Combining)

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

The solution enhances user convenience by providing flexible keystroke allocation and eliminating the need for power storage devices, ensuring continuous operation and efficient input processing.

Implementation Method 1

a first resonating circuit for responsing a first wireless signal to generate an induced electromotive force and provide a power source

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

the chip outputs the key data as a second wireless signal via the first resonating circuit

Methodology Applied

Scientific EffectElectromagnetic radiation:

Data Source

PatentUS9075447B2Wireless keyboard for arbitrarily assembly and computer system thereof

Publication Date: 2015.07.07 WISTRON CORP

AI summary

A wireless keyboard comprises at least a keystroke each comprising a first resonating circuit for responsing a first wireless signal to provide a power source, a chip storing a key data, and a switch coupled between the first resonating circuit and the chip for conducting a connection between the first resonating circuit and the chip when receiving an external force, to transmit the power source provided by the first resonating circuit to the chip, such that the chip outputs the key data as a second wireless signal via the first resonating circuit, and a reader coupled to a computer system for emitting the first wireless signal to the each keystroke and responsing the second wireless signal outputted by the each keystroke, so as to determine commands inputted to the computer system.