Dynamic Input Area Control for Multi-Level Press Detection
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Solution Overview
Problem
Existing input apparatuses struggle with operators inadvertently performing second-level inputs due to difficulty in adjusting pressure accurately, leading to unintended operations, especially in devices like cameras where precise pressure control is crucial for functions like AE and AF.
Innovation Solution
An input apparatus with an area detection unit and a control unit that sets standard areas for first and second-level inputs based on the pressed area and its change rate, providing alerts to ensure accurate pressure recognition and prevent unintended second-level inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed standard areas are predefined for first and second level inputs, then the input apparatus can receive inputs at multiple levels, but operators may inadvertently perform second-level inputs due to difficulty in accurately controlling pressure
Solution Approach 1:
The patent makes the standard area dynamic by updating it based on the operator's actual pressing behavior. The control unit monitors the pressed area during input operations and adjusts the standard area accordingly, transforming it from a fixed predefined value to a dynamically adapted parameter that responds to user behavior patterns.
Solution Approach 2:
The system implements feedback by continuously monitoring the pressed area during input operations and using this information to update the standard area. The control unit receives information about the operator's pressing behavior and adjusts the standard area to match actual usage patterns, creating a closed-loop system that adapts to user needs.
2Reliability
If the standard area is dynamically updated based on pressed area, then input accuracy improves, but the device complexity increases due to additional detection and control mechanisms
Solution Approach 1:
The control unit serves multiple functions: it manages the dynamic updating of standard areas, detects pressed area information, determines input levels, and controls alert generation. By making the control unit multi-functional, the patent avoids adding separate dedicated components for each function, thereby reducing overall device complexity while achieving dynamic adaptation.
Solution Approach 2:
The system performs self-adjustment by automatically updating the standard area based on its own detection of pressed area information. The control unit uses information from the input operation itself to modify the standard area without requiring external calibration or additional sensing mechanisms, enabling the system to adapt autonomously.
3Reliability
If alerts are generated to confirm first level input recognition, then operators can perform intended inputs reliably, but the device complexity increases due to additional alert generation mechanisms
Solution Approach 1:
The control unit is designed to handle multiple tasks including standard area updates, input level determination, and alert generation. By consolidating these functions in a single control unit, the patent avoids the need for separate dedicated components for alert generation, thereby minimizing the increase in device complexity while ensuring reliable input recognition.
Data Source
AI summary
An input apparatus capable of receiving inputs of a plurality of levels in accordance with pressed area varied in each operation by an operator is provided. An input apparatus 10 configured to receive the inputs of a plurality of levels in accordance with the pressed area has a area detection unit 40 configured to detect a pressed area of a pressing input and a control unit 20 configured to control to set a second standard area for receiving a second level input every time the area detection unit 40 detects the pressed area satisfying a first standard area for receiving a first level input.