Touch Sensor Control Unit Prevents Unintended Input During Display Layout Changes
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Solution Overview
Problem
Electronic information devices with touch sensors often unintentionally initiate operations when the display layout changes during auto repeat functions, leading to unintended actions such as incorrect input or missed notifications due to persistent contact detection after the object has been deleted or rearranged.
Innovation Solution
An electronic information device with a touch sensor, display unit, and control unit that disregards touch sensor detection after an object is deleted until the contact is released, and provides tactile feedback to notify the user of changes in the display layout, preventing unintended operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the touch sensor continuously detects contact during auto repeat function, then the operator can continuously input the same character, but unintended operations occur when display layout changes during contact
Solution Approach 1:
The system dynamically adjusts touch detection behavior based on operational state. During auto repeat, the control unit suspends touch detection after object deletion while contact is maintained, allowing display layout changes without triggering unintended operations. This dynamic adjustment resolves the contradiction by making the detection system adaptive to different operational contexts.
2Adaptability or versatility
If the display layout changes during contact, then the interface can adapt to different application states, but persistent contact detection causes unintended operations
Solution Approach 1:
The control unit preemptively suspends touch detection before display layout changes can cause unintended operations. When an object is deleted during contact, the system proactively disables further detection until contact is released, preventing potential harmful interactions with new layout elements before they can occur.
3Ease of operation
If the touch sensor detects contact at the original position, then the auto repeat function works, but the detected position may correspond to a different object after layout change
Solution Approach 1:
The system applies preliminary anti-action by suspending touch detection after object deletion during contact. This prevents the measurement system from incorrectly associating the persistent contact signal with a new object at the same position, thereby maintaining measurement precision while preserving auto repeat functionality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents unintended operations by suspending detection of persistent contacts after object deletion, allowing users to safely navigate changes in the display layout and maintain control over input operations.
Implementation Method 1
a capacitive type
Implementation Method 2
a resistive film type
Implementation Method 3
a tactile sensation providing unit configured to vibrate a touch face of the touch sensor
Data Source
AI summary
An electronic information device that does not start an operation unintended by an operator when a display of an object is changed while a contact to a touch sensor is detected, is provided.An electronic information device 1 includes a touch sensor 11, a display unit 14 configured to display the object, and a control unit 15 configured to, when deleting the object while the touch sensor 11 is detecting a contact at a position corresponding to a predetermined object area displayed on the display unit 14, control to disregard detection of the contact by the touch sensor 11 after deletion of the object until the contact is released.