Hand Display Frequency Switching for High-Load Processing
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Solution Overview
Problem
Hand display devices face challenges in efficiently performing fast-forward operations without excessive power consumption or processing load when combined with high-load processing such as communication, particularly in devices like analog timepieces.
Innovation Solution
A hand display control device that switches between two frequency signals, using a higher frequency signal for high-load processing and a lower frequency for hand operations, and temporarily halts fast-forward operations during high-load processing to manage power consumption and processing loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-load processing such as communication processing is performed in parallel with fast-forward operation of hands, then processing capability is improved, but total processing load becomes excessively high
Solution Approach 1:
The patent dynamically adjusts the operating frequency of the oscillator based on the processing load. When high-load processing (communication) is detected, the system switches to a lower frequency signal for hand operations, thereby reducing the total processing load while maintaining essential functionality. This dynamic frequency adjustment resolves the contradiction by adapting system performance to current processing demands.
Solution Approach 2:
The system changes the frequency parameter of the clock signal based on processing conditions. By switching between different frequency signals (high frequency for normal operation, low frequency for high-load conditions), the patent optimizes the balance between processing capability and power consumption, preventing excessive total load while maintaining productivity.
2Ease of operation
If fast-forward operation is performed by sequentially executing step operations, then hand display functionality is improved, but time required for display change increases
Solution Approach 1:
The patent uses periodic clock signals to drive the step operations of the hands. By utilizing regular frequency signals from the oscillator, the system performs sequential step operations in a time-efficient manner, reducing the loss of time while maintaining the hand display functionality. The periodic nature of the clock signal ensures smooth and predictable hand movement.
3Use of energy by moving object
If analog timepieces perform processing at low clock frequencies, then power consumption is reduced, but processing speed decreases
Solution Approach 1:
The patent implements dynamic frequency switching where the oscillator operates at low frequency during high-load processing (such as communication) to reduce power consumption, and switches to high frequency during normal operations to maintain processing speed. This dynamic adaptation resolves the contradiction between power efficiency and processing speed by matching operational requirements with appropriate frequency levels.
Solution Approach 2:
The system changes the clock frequency parameter based on processing conditions. By switching between low frequency (for power efficiency during high-load tasks) and high frequency (for speed during normal operations), the patent optimizes the trade-off between power consumption and processing speed, ensuring both energy efficiency and adequate performance.
Data Source
AI summary
A hand display control device includes a processor. The processor causes an oscillation circuit to output a first frequency signal or a second frequency signal to a first processing circuit that executes processing for operating a hand in response to the first frequency signal. The oscillation circuit outputs the first frequency signal or the second frequency signal by switching. The second frequency signal is higher in frequency than the first frequency signal. The processor controls whether to output the second frequency signal to a second processing circuit that performs previously determined certain processing in response to the second frequency signal. The processor controls the switching of the oscillation circuit depending on whether the certain processing is performed. The processor prohibits the first processing circuit from performing a specific operation of the hand while the second processing circuit is performing the certain processing.