Wireless Earphone Cradle Touch Panel Interface

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Solution Overview

Problem

Wireless earphones with built-in batteries have limited playback time due to size constraints, and users need a separate display terminal for data visualization and settings, which is inconvenient.

Innovation Solution

A sound reproduction device comprising a wireless earphone and a cradle with a rechargeable battery and a touch panel that functions as an input/output interface, allowing users to manage and provide information without a smartphone.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If a battery is built in each wireless earphone, then the earphones can be made smaller and lighter, but the battery capacity is limited and playback time is restricted to only several hours

Engineering Contradiction:
Improveweight of earphoneVSAvoidplayback time
Core Design Contradiction:
Weight of moving objectVSDuration of action of moving object

Solution Approach 1:

The battery system is segmented into two parts: a small battery in each earphone for portability, and a larger battery in the cradle for extended energy storage. The earphone battery provides immediate power, while the cradle battery serves as a backup and charging source, effectively extending total playback time without increasing earphone weight.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The earphone is nested within the cradle, which contains a larger battery. The cradle acts as a containing structure that houses both the earphone and an additional battery, allowing the smaller earphone battery to benefit from the larger cradle battery capacity when docked.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Volume of moving object

If wireless earphones are made small in size, then they are more comfortable to wear, but they cannot be equipped with a display to show sensor data and settings

Engineering Contradiction:
Improvesize of earphoneVSAvoiddata visualization capability
Core Design Contradiction:
Volume of moving objectVSLoss of information

Solution Approach 1:

The display function is extracted from the earphone body and placed in the cradle. The cradle incorporates a display unit that can show sensor data, battery status, and settings information, allowing the earphone to remain small while providing comprehensive information visualization when docked in the cradle.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The cradle is designed with multiple functions: it charges the earphone, stores it when not in use, and provides a display interface for data visualization and settings. This multi-functional design eliminates the need for a separate display terminal, as the cradle serves as both a charging device and an information display device.

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

3Loss of information

If a separate display terminal is used to view sensor data and change settings, then information can be visualized, but user convenience is reduced due to the need for additional devices

Engineering Contradiction:
Improvedata visualizationVSAvoiduser convenience
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The cradle merges multiple functions into a single device: it combines the charging function, storage function, and display/interface function. By integrating the display unit into the cradle, the system eliminates the need for a separate smartphone or display terminal, allowing users to view data and change settings directly at the charging station.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cradle serves as a universal interface for the wireless earphone system, providing charging, data visualization, and settings control in one location. This multi-functional design makes the system more convenient by consolidating all necessary functions into the cradle, which users already interact with regularly for charging.

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

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 extended battery life through charging and data management directly on the cradle, eliminating the need for a separate display terminal and enhancing user convenience by providing a graphical user interface for settings and data visualization.

Implementation Method 1

the cradle includes a chargeable battery for charging the wireless earphone

Methodology Applied
Scientific EffectBattery (electricity): Battery (electricity)

Data Source

PatentUS11153674B2Sound reproduction device
Publication Date: 2021.10.19 EARFREDO CO LTD
  • US11153674B2 patent drawing
  • US11153674B2 patent drawing
  • US11153674B2 patent drawing

AI summary

Provided is a sound reproduction device that includes a cradle that functions as a GUI of a wireless earphone, and does not need additional use of a display terminal. The sound reproduction device includes a wireless earphone 1, and a cradle 50 that houses the wireless earphone, wherein the cradle 50 includes a chargeable battery for charging the wireless earphone 1, and a touch panel 51 that functions as an input/output interface of the wireless earphone 1.