Touch Screen Hold-and-Release Input to Prevent Erroneous Commands
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional touch screen interfaces in information processing apparatuses are prone to erroneous operations due to unintentional touches or noise, necessitating improvements in user interface technology for accurate operation input.
Innovation Solution
An information processing apparatus with a touch screen and a controller that executes a control command only when a touch operation within a predetermined area lasts for a predetermined time and the touch position remains within that area, accompanied by visual feedback through a varying gauge display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If touch screen is used for operation input, then ease of operation is improved, but reliability deteriorates due to erroneous operations from unintentional touches and noise
Solution Approach 1:
The controller performs preliminary detection of touch operations and verification of user intention before executing control commands. By detecting touch operations in advance and verifying they meet predetermined conditions (duration, position, intent), the system prevents erroneous operations while maintaining ease of use.
Solution Approach 2:
The system provides feedback by displaying a gauge that varies in response to touch duration, allowing users to confirm their intention. This feedback mechanism ensures that only deliberate touches lasting the predetermined time or more are recognized as valid operations, thereby improving reliability without sacrificing ease of operation.
2Reliability
If touch duration requirement is added to prevent erroneous operations, then reliability is improved, but device complexity increases
Solution Approach 1:
The controller integrates multiple functions into a single component: it detects touch operations, measures touch duration, determines user intention, and executes control commands. By making the controller multi-functional, the system improves reliability through comprehensive detection without adding separate dedicated components for each function.
Solution Approach 2:
The system changes the parameter of touch duration from a simple binary detection (touch/dont touch) to a temporal measurement (duration <predetermined time). This parameter change enables the system to distinguish between unintentional touches and deliberate operations, improving reliability through a single parameter modification rather than complex multi-parameter verification.
3Reliability
If gauge display is added to confirm user intention, then reliability is improved, but device complexity increases
Solution Approach 1:
The gauge display is merged with the existing touch screen interface rather than being a separate display component. The gauge varies in response to touch duration and is displayed on the same screen where operation objects are shown, combining multiple functions (operation display and intention confirmation) into a single integrated interface.
Solution Approach 2:
The gauge automatically varies in response to touch duration without requiring additional user input or complex control mechanisms. The system self-regulates the gauge display based on the detected touch parameters, providing intention confirmation through a self-service mechanism that adds reliability without significant complexity increase.
Data Source
AI summary
An information processing apparatus includes a touch screen and a controller. The controller is configured to detect a touch operation within a predetermined area corresponding to the position of an output operation object displayed on the touch screen, and execute a control command corresponding to the output operation object when a touch duration within the predetermined area is equal to or more than a predetermined time and a position from which a touch has left is within the predetermined area.