Imaging Apparatus Power Saving Mode Buffer Control
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Solution Overview
Problem
Existing imaging apparatuses with power saving functions face challenges in balancing power consumption and operability, as they either experience frequent switching between power saving and normal states due to excessive response to posture changes or slow response times, leading to inconvenience for users and increased costs from multiple timers.
Innovation Solution
An imaging apparatus with a posture information accumulating buffer that determines the power saving mode based on accumulated posture data, using a limited buffer to detect changes and adjust the power saving state accordingly, eliminating the need for additional timers and improving operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the duration for obtaining posture information is short, then the response speed with respect to posture change is fast, but it causes repeat of power saving state and normal state making it difficult to see the display
Solution Approach 1:
The system performs preliminary accumulation of posture information over a predetermined duration before making power saving determination. This preliminary action filters out noise and minor posture variations, ensuring that only significant posture changes trigger state transitions, thereby preventing frequent switching while maintaining responsive behavior to genuine user actions.
2Reliability
If the duration for obtaining posture information is long, then it is easy to differentiate posture change from sensor noise, but returning from power saving state to normal state becomes slow
Solution Approach 1:
The system accumulates posture information for a predetermined duration as a preliminary step before determining power saving state. This accumulation period is optimized to be sufficient for noise filtering but not excessively long, balancing reliability of determination with responsiveness to user actions. The predetermined duration acts as a compromise that prevents both noise-triggered switching and excessive delay in state transitions.
3Use of energy by stationary object
If multiple timers are used for auto power off and power saving mode, then power consumption management is detailed, but device complexity and cost increase
Solution Approach 1:
The system merges the auto power off function and power saving mode determination into a single integrated control mechanism using one timer. Instead of maintaining separate timers for different power management functions, the invention combines these functions under unified timer control, reducing device complexity and component count while still achieving effective power consumption management through coordinated control of display and processor states.
Data Source
AI summary
An imaging apparatus includes an image sensor; an image obtainer that obtains a plurality of images from the image sensor; a posture detector that obtains posture information of the imaging apparatus; a posture information accumulating buffer that accumulates the posture information obtained by the posture detector; and a power saving mode setter that activates and deactivates a power saving mode in which power consumption is suppressed, wherein the power saving mode setter determines to activate and deactivate the power saving mode based on the accumulated posture information in the posture information accumulating buffer.