Battery Remaining Level Correction Across USB PD Standards
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Solution Overview
Problem
The accuracy of battery remaining capacity display can vary due to different revisions and communication standards in USB Power Delivery technology, leading to unreliable battery level indications.
Innovation Solution
An electronic apparatus with a communication unit, identification unit, and output unit that adjusts the battery remaining level calculation based on identified communication standards to ensure accurate output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication standards are supported for obtaining battery remaining capacity, then compatibility with different battery devices is improved, but the accuracy of the remaining level display deteriorates due to variations in data reliability across standards
Solution Approach 1:
The patent changes the parameter of data processing method based on the communication standard identified. Different adjustment values are applied to the remaining capacity data depending on whether USB PD 3.0, 3.1, or other standards are detected, thereby maintaining high accuracy across multiple communication standards while preserving broad device compatibility
Solution Approach 2:
The patent introduces an intermediary processing step between data acquisition and display. The remaining capacity data from the battery is adjusted through a calculation unit that applies standard-specific correction values before being sent to the display unit, ensuring accurate representation regardless of the communication standard used
2Speed
If remaining capacity data is directly displayed without adjustment, then the display speed is improved, but the reliability of the remaining level information deteriorates due to standard-specific data variations
Solution Approach 1:
The patent performs preliminary adjustment of the remaining capacity data based on the identified communication standard before displaying it. By pre-calculating the adjusted value using standard-specific correction factors, the system ensures reliable information is displayed without requiring post-processing or user interpretation
Solution Approach 2:
The patent implements a feedback mechanism where the communication standard identification unit detects which standard is being used, and this information feeds back to the adjustment value determination unit. This closed-loop approach ensures that the appropriate correction values are applied automatically, maintaining both speed and reliability
Data Source
AI summary
An electronic apparatus communicates with a battery and obtains, from the battery, information related to a remaining capacity of the battery. The apparatus identifies a communication standard for obtaining the information related to the remaining capacity of the battery, and outputs a remaining level of the battery obtained based on the information related to the remaining capacity of the battery. The apparatus obtains the remaining level of the battery by adjusting the remaining capacity of the battery in accordance with the communication standard being identified.