External Power Mode Control for Mixed Battery Compatibility

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Solution Overview

Problem

Existing electronic devices face issues with functionality loss when switching from a high-power to a low-power battery during operation, leading to potential missed opportunities, especially in devices like digital cameras.

Innovation Solution

An electronic apparatus with a connection unit and power reception unit that determines operation modes based on the combination of external power source specifications and battery specifications, ensuring compatibility and stable operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a high-power battery and a low-power battery coexist and are mounted on an accessory apparatus, then battery compatibility is achieved, but functionality may be lost when switching from high-power to low-power battery during operation

Engineering Contradiction:
Improvebattery compatibilityVSAvoidfunctionality continuity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The controller determines the power source specification of the external apparatus and the battery mounted to it in advance, before operation begins. Based on this preliminary information, the controller decides the operation mode from activation to shutdown, ensuring that functionality is properly managed before any battery switching occurs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The operation mode of the electronic apparatus is dynamically adjusted based on the combination of power source specification of the external apparatus and battery specification. The controller adapts the available functions according to the detected battery type, ensuring high-power functions are only activated when a high-power battery is detected.

Inventive Principle:
Principle #15Dynamics

2Duration of action of stationary object

If power is supplied by a high-power battery and switched to a low-power battery when remaining amount decreases, then battery longevity is extended, but some functions cannot be executed

Engineering Contradiction:
Improvebattery usage durationVSAvoidavailable functions
Core Design Contradiction:
Duration of action of stationary objectVSAdaptability or versatility

Solution Approach 1:

The controller changes the operational parameters of the electronic apparatus based on the battery type detected. When a low-power battery is detected, the controller adjusts the operation mode to limit power-consuming functions, thereby extending battery duration while maintaining essential functionality.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The electronic apparatus is designed to operate in multiple modes depending on the battery type. It can function with either high-power or low-power batteries, adapting its capabilities to ensure universal compatibility while optimizing performance for each battery type.

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

3Productivity

If high-power functions are enabled during operation, then performance is improved, but power consumption increases

Engineering Contradiction:
Improvedevice performanceVSAvoidpower consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The controller dynamically adjusts the operation mode based on real-time detection of battery type and remaining amount. High-power functions are enabled only when a high-power battery with sufficient capacity is detected, otherwise the system operates in a lower-power mode to conserve energy.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250210985A1Electronic apparatus that operates using power supplied from external apparatus and control method thereof
Publication Date: 2025.06.26 CANON KK
  • US20250210985A1 patent drawing
  • US20250210985A1 patent drawing
  • US20250210985A1 patent drawing

AI summary

An electronic apparatus operates using power supplied from an external apparatus and includes a connection unit that connects the external apparatus including a plurality of batteries, a power reception unit that receives power from the external apparatus, and a controller that decides an operation mode from activation to shutdown of the electronic apparatus based on a combination of a power source specification of the external apparatus and a power source specification of a battery mounted to the external apparatus.