Electronic Device Exposure Setting Control Method
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Solution Overview
Problem
Existing electronic devices require users to switch settings from automatic to manual for exposure parameters like shutter speed, aperture value, and ISO speed, which can be inconvenient and disrupt correct exposure settings.
Innovation Solution
An electronic device with a changing unit, determination unit, and control unit that allows users to change one setting item without affecting automatically determined values of other items, maintaining correct exposure settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all setting values are set to automatic setting, then correct exposure is achieved, but users cannot easily change individual setting values without switching to manual setting
Solution Approach 1:
The patent segments the setting system into individual controllable setting items (exposure time, aperture value, ISO speed) that can be independently switched between automatic and manual settings. Each setting item has its own switch, allowing users to selectively change only the desired parameter while keeping others in automatic mode, thus maintaining correct exposure for unchanged parameters while enabling easy modification of specific settings.
2Ease of operation
If users switch to manual setting to change a value, then the value can be changed, but other automatically set values may be affected
Solution Approach 1:
By providing individual switches for each setting item, the system allows users to change only the specific parameter they want to modify without affecting other settings. This segmentation prevents the loss of automatically determined values for parameters that remain in automatic mode, ensuring that correct exposure is maintained for those parameters while still allowing manual adjustment of the selected parameter.
3Ease of operation
If individual setting items are independently controllable, then operability is improved, but device complexity increases
Solution Approach 1:
The control unit serves multiple functions: it monitors the state of each setting item's switch, determines which parameter the user wants to change, automatically selects appropriate values for parameters remaining in automatic mode, and coordinates the overall setting process. This multi-functional control unit enables independent control of multiple setting items without requiring separate complex control mechanisms for each parameter, thus improving operability while managing device complexity.
Data Source
AI summary
There is provided an electronic device. A changing unit changes a setting value of a setting item selected from a plurality of setting items to a setting value that is selected, in accordance with a user operation, from among a plurality of setting values including a first setting value, for which a setting value is automatically determined. A determination unit automatically determines, for a setting item for which the first setting value was set, a setting value. A control unit performs control such that, when, in a state in which a setting value of a first setting item for which the first setting value was set has been automatically determined, a user operation is made to change a setting value of a second setting item, the setting value of the first setting item is not changed.