Electronic Timepiece Battery Residual Display Mode Switching
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Solution Overview
Problem
In electronic timepieces with multiple operation modes, it is difficult for users to intuitively understand the actual battery residual quantity in each mode, as the minimum battery residual ratio levels are set differently for each mode, leading to confusion about usable and non-usable modes.
Innovation Solution
The electronic timepiece includes a display unit that switches the display of battery residual quantity based on the execution operation mode, with the control unit setting the minimum battery residual ratio level for each mode and indicating zero when the battery reaches this level, allowing intuitive understanding of the battery status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a minimum battery residual ratio level is set for each operation mode, then the executable operation modes can be controlled based on battery status, but it becomes difficult for users to intuitively understand the actual battery residual quantity in each mode
Solution Approach 1:
The patent applies local quality by displaying different battery residual quantity information tailored to each operation mode. When navigation mode is selected, the display shows battery residual quantity specific to navigation mode requirements, while in time display mode it shows time display mode-specific battery status. This mode-specific localized display resolves the contradiction by making battery information intuitive for the current mode while maintaining adaptability across modes.
Solution Approach 2:
Instead of displaying a single fixed battery residual ratio that applies universally across all modes, the patent inverts the approach by displaying mode-specific battery residual quantities. The display shows what the battery residual quantity would be if that particular mode were executed, rather than showing the actual physical battery level. This inversion makes the information intuitive for users in each mode while maintaining system adaptability.
2Use of energy by moving object
If different minimum battery residual ratio levels are set for different operation modes, then power management can be optimized, but users may be confused about whether an operation mode is actually usable based on the displayed battery residual ratio
Solution Approach 1:
The patent applies local quality by providing mode-specific battery residual quantity displays that reflect the actual usability conditions for each operation mode. When navigation mode is selected, the display shows battery residual quantity calculated based on navigation mode power consumption characteristics, giving accurate usability indication for that specific mode while maintaining optimized power management across different modes.
Solution Approach 2:
The patent implements feedback by displaying battery residual quantity information that is specifically calculated and tailored to the currently selected operation mode. This mode-specific feedback loop ensures that users receive accurate information about whether the current mode is executable based on battery status, resolving the confusion that would arise from displaying a single generic battery level that doesn't reflect mode-specific power requirements.
Data Source
AI summary
An electronic timepiece that has a plurality of operation modes and uses a secondary battery as a power supply includes a 2 o'clock side information display unit that displays a residual quantity of the secondary battery, a navigation start switch that receives a user manipulation, and a control unit that decides an execution operation mode to be executed by the electronic timepiece among the plurality of operation modes according to the user manipulation received by the navigation start switch and switches display of a residual quantity of a battery in the 2 o'clock side information display unit according to the execution operation mode.