Multi-function Input Interface Antenna Integration

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Solution Overview

Problem

As electronic devices shrink in size, there is a challenge in accommodating increasing functionality and components within limited space, particularly in incorporating antennas and input interfaces without compromising performance or increasing size.

Innovation Solution

A multi-function input interface that combines the functions of an antenna and an input interface, using a conductive portion for signal transmission and a positional element for user input detection, which can be rotatable or slidable, and includes a transceiver communicatively coupled to a processing unit via an antenna feed, with a dielectric isolating the conductive portion from the ground element.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate antennas and input interfaces are used, then signal transmission and user input functions are reliable, but the number of components and device size increase

Engineering Contradiction:
Improvesignal transmission reliabilityVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the antenna and input interface into a single integrated component. The conductive portion serves dual purposes: transmitting wireless signals as an antenna and detecting user inputs through positional changes. This merging eliminates the need for separate components while maintaining both functions' reliability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The input interface is designed with multi-functionality, serving both as a wireless communication antenna and as a user input detection mechanism. The conductive portion can detect user inputs through various interactions (touch, rotation, sliding) while simultaneously functioning as the antenna for signal transmission, making the component universal

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If more components are added to increase functionality, then device capabilities improve, but device size increases

Engineering Contradiction:
Improvedevice functionalityVSAvoiddevice size
Core Design Contradiction:
Adaptability or versatilityVSVolume of moving object

Solution Approach 1:

The input interface component is designed to perform multiple functions: wireless signal transmission, user input detection through touch, rotation, and sliding gestures. By making this single component universal, the device achieves increased adaptability and versatility without adding more components or increasing size

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the antenna function and input interface function into one integrated component. This consolidation allows the device to maintain enhanced functionality while reducing the overall number of components and minimizing device volume

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If antenna is placed close to ground element, then device size is reduced, but near-field electromagnetic radiation absorption increases

Engineering Contradiction:
Improvedevice sizeVSAvoidelectromagnetic radiation absorption
Core Design Contradiction:
Volume of moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a dielectric material as an intermediary between the conductive portion (antenna) and the ground element. This dielectric layer acts as a mediator that reduces near-field electromagnetic radiation absorption while allowing the antenna to remain positioned close to the ground element, thus maintaining compact device size without suffering from the harmful absorption effect

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This solution reduces the number of components and size of electronic devices, improves antenna performance by reducing near-field electromagnetic radiation absorption, and enhances user interaction through a single interface for both signal transmission and input detection.

Implementation Method 1

a conductive portion to transceive a signal through the input interface

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

with a dielectric isolating the conductive portion from the ground element

Methodology Applied
Scientific EffectDielectric isolation: Dielectric

Data Source

PatentUS11366431B2Multi-function antenna and input interface
Publication Date: 2022.06.21 INTEL CORP
  • US11366431B2 patent drawing
  • US11366431B2 patent drawing
  • US11366431B2 patent drawing

AI summary

A multi-function input interface for an electronic device. The multi-function input interface including a conductive portion to transceive a signal through the input interface. The input interface includes a positional element to detect a user input to the input interface.