Universal Battery Gauge Processing for Multi-Battery Accuracy

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Solution Overview

Problem

Multi-battery systems in electronic devices face increased manufacturing costs and inconsistent functionality due to the inclusion of individual fuel gauges for each battery, which can lead to discrepancies in battery information accuracy.

Innovation Solution

A universal gauge master algorithm is implemented in a processing circuit that receives and processes battery information from multiple devices, generating accurate gauge results without the need for individual fuel gauges in each battery, thereby reducing manufacturing costs and enhancing accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If individual fuel gauges are installed in each battery, then battery information can be provided for each device, but manufacturing costs significantly increase

Engineering Contradiction:
Improvebattery information accuracyVSAvoidmanufacturing cost
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent implements a universal gauge master algorithm that can process battery information from multiple different devices (mobile phones, tablets, wearables, etc.) through a single processing circuit. This multi-functional approach eliminates the need for dedicated fuel gauges in each battery, significantly reducing manufacturing costs while maintaining the ability to provide accurate battery information across diverse device types

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

Solution Approach 2:

The patent combines multiple battery measurement and processing functions into a single integrated processing circuit. Instead of having separate fuel gauge components in each battery, the system merges all battery information processing into one centralized unit that handles multiple batteries across different devices, reducing component quantity and manufacturing complexity

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If individual fuel gauges are installed in each battery, then battery information can be monitored, but functionality and quality of each fuel gauge may be inconsistent

Engineering Contradiction:
Improvebattery information consistencyVSAvoidfuel gauge quantity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The universal gauge master algorithm provides consistent and standardized battery information processing across all supported devices. By using a single unified algorithm rather than multiple different fuel gauge implementations, the system ensures uniform functionality and quality regardless of the device type or battery characteristics

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

Solution Approach 2:

The patent employs a homogeneous processing approach where all battery information passes through the same gauge master algorithm in the processing circuit. This ensures consistent measurement standards, data processing methods, and output formats across all batteries, eliminating the variability that would exist with multiple different fuel gauge implementations

Inventive Principle:
Principle #33Homogeneity

3Ease of manufacture

If a universal gauge master algorithm is used to process battery information from multiple devices, then manufacturing costs are reduced, but the processing circuit must handle multiple data streams

Engineering Contradiction:
Improvemanufacturing costVSAvoidprocessing circuit complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The processing circuit implements segmented processing by creating separate processing channels or modules within the unified gauge master algorithm, where each channel handles battery information from a specific device. This segmentation allows the system to manage multiple data streams efficiently while maintaining a cost-effective single-processing-circuit architecture

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4242677B1Universal gauge master solution at multi-battery system
Publication Date: 2026.04.29 MEDIATEK INC
  • EP4242677B1 patent drawingFigure 1
  • EP4242677B1 patent drawingFigure 2
  • EP4242677B1 patent drawingFigure 3

AI summary

The present invention provides a multi-battery system including a plurality of devices and a processing circuit. Each of the plurality of devices includes a battery, a measurement circuit and a communication interface, wherein the measurement circuit is configured to measure the battery to generate battery information, and the communication interface is configured to transmit the battery information. The processing circuit is configured to receive the plurality of battery information of the plurality of devices, and use a universal gauge master algorithm to process the battery information of the plurality of devices to generate a plurality of gauge results, respectively.