Touch Control Logic for Efficient AF Position Shifting
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Solution Overview
Problem
Existing digital still camera systems require burdensome and time-consuming operations to shift the AF target position over long distances using touch panel inputs, as they only shift the AF target based on the touch position while viewing the finder, leading to inefficient setting processes.
Innovation Solution
An electronic apparatus with a touch detector and processor that switches between first and second type processing based on touch operations, allowing for relative coordinate settings that enable efficient shifting of the AF frame by calculating shift vectors and distinguishing between desired and undesired touch operations, such as nose touches, to improve operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the AF target position is shifted only in accordance with a shift of a touch position while the finder is viewed, then the item is displayed at a position corresponding to the touch position, but a long distance shift or repeated shift requires burdensome operations and a long period of time
Solution Approach 1:
The system dynamically switches between two processing modes (first and second type processing) based on the touch operation detected after the touch start position. This allows the AF target position to be shifted in different ways depending on the user's intent, making the operation more flexible and efficient. The controller determines which processing mode to execute based on the detected touch characteristics, enabling adaptive behavior that reduces the time and effort required for position setting.
Solution Approach 2:
The system changes the parameter of processing mode based on the detected touch operation. By switching between first type processing (which displays the item at a position shifted from the touch position) and second type processing (which displays the item at a position based on the touch operation), the system can adjust its behavior to match user intentions, thereby reducing the time and repeated operations needed for AF position setting.
2Ease of operation
If the AF target position is shifted in accordance with a shift of a touch position, then the item is displayed at a position shifted from the touch position, but nose touches cause undesired AF position changes
Solution Approach 1:
The controller detects the touch operation characteristics after the touch start position and uses this feedback to determine which processing mode to execute. By analyzing the detected touch characteristics, the system can distinguish between intentional touch operations (finger touches) and unintentional ones (nose touches), and switch processing modes accordingly to prevent undesired AF position changes while maintaining ease of operation.
Data Source
AI summary
An electronic apparatus performs first type processing or second type processing based on whether or not a predetermined touch operation that does not include a shift of a touch position onto an operation surface is detected after a touch on the operation surface is detected. The first type processing is processing of displaying an item on a display at a position which has shifted in accordance with an amount of a shift of the touch position from a position where the item was displayed before detection of the shift of the touch position without displaying, at a position corresponding to a touch start position, the item. The second type processing is processing of displaying the item at a position that is not based on the position where the item was displayed before detection of the touch operation.