Touch Screen Item Activation via Compound Gesture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional portable terminals require repetitive and unnecessary steps to activate user functions, especially on touch screens, due to the need for multiple input signals and screen navigations.
Innovation Solution
A method and system for a portable terminal that allows rapid operation of user functions by detecting a first touch event on an item and changing its color or shape upon a second touch event within a non-scrolling range, thereby activating linked functions without additional input signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional touch screen operation is used, then user functions can be activated, but multiple repetitive input signals and screen navigations are required
Solution Approach 1:
The patent combines multiple sequential operations (touching to select, touching to activate) into a single compound touch gesture. By detecting both the selection touch and activation touch as part of one continuous interaction sequence, the system eliminates the need for separate navigation steps and reduces the total number of input signals required to activate user functions.
Solution Approach 2:
The system performs preliminary detection of touch events and their spatial relationships before executing the user function. By analyzing whether the activation touch occurs within a predetermined range of the selection touch, the system prepares and validates the interaction sequence in advance, enabling rapid function activation without requiring additional navigation steps.
2Reliability
If multiple input signals are required for function activation, then precise control is achieved, but operational complexity increases
Solution Approach 1:
The touch screen interface performs self-validation by automatically determining whether the activation touch occurs within the predetermined range of the selection touch. The system uses its own detection capabilities to verify the spatial relationship between touches, eliminating the need for complex external control mechanisms or multiple manual input steps while maintaining accurate function activation.
Solution Approach 2:
The system changes the parameter of touch event detection from requiring multiple separate signals to detecting a compound gesture with specific spatial parameters. By defining a predetermined range (threshold distance) between the selection touch and activation touch, the system maintains reliable function activation while reducing the complexity of the input sequence to essentially a single compound action.
3Weight of moving object
If touch screen without keypad is used, then portability is improved, but input efficiency decreases
Solution Approach 1:
The patent introduces a spatial dimension to touch interaction by detecting the relative position and distance between two touch points on the touch screen. This spatial relationship (predetermined range) serves as an additional dimension of input encoding, enabling efficient function activation directly on the touch screen without requiring physical keypad buttons, thus maintaining both compact size and input efficiency.
Data Source
AI summary
Disclosed is a portable terminal operation method and a portable terminal supporting the same that enable rapid and convenient operation of a user function in relation to a particular item on a touch screen. The method includes: outputting an area in which one or more scrollable items are arranged; appointing a particular item when a first touch event occurs, determining if a second touch event occurs on the appointed item within a range in which item scrolling does not occur; and changing at least one of a part of a color, and a shape of an image, corresponding to the appointed particular item according to the occurrence of the second touch event.