Pressure-Sensitive Touch Screen Text Selection Mechanism
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Solution Overview
Problem
Conventional methods for selecting text on touch screens often inadvertently select intermediate parts of text, making it difficult for users to selectively choose specific words and perform functions on them.
Innovation Solution
A touch screen apparatus with a pressure sensor that enters a text selection state upon force press input and allows for individual word selection through tap input, enabling specific functions to be performed on each selected word.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If text selection is performed by selecting from first part to last part, then the selection process is simple, but intermediate parts of text that are not desired are selected together
Solution Approach 1:
The patent changes the pressure parameter of touch input to differentiate between regular selection and word-by-word selection modes. By detecting pressure magnitude, the system transitions between different selection behaviors, allowing users to select only desired text portions without inadvertently including intermediate parts.
2Measurement precision
If pressure-sensitive input is introduced to enable precise word selection, then text selection accuracy is improved, but device complexity increases
Solution Approach 1:
The touch screen maintains its primary function while adding pressure-sensitive capability. The same touch screen hardware serves both as a standard touch interface and as a pressure sensor for force press detection, eliminating the need for separate pressure sensing components and reducing overall device complexity.
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
Enables precise selection and manipulation of desired text segments, providing users with more control over text operations and functions on touch screen devices.
Implementation Method 1
a pressure sensor configured to detect pressure applied to the touch screen
Data Source
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AI summary
A device for providing a user interface, according to an embodiment of the present invention, comprises a touch screen, a pressure sensor for sensing pressure applied onto the touch screen, and a processor, wherein the processor can be set so as to perform a first function corresponding to a first gesture when pressure by the first gesture inputted onto the touch screen is a designated value or less and to perform a second function corresponding to the first gesture by entering a first state for selecting each of a plurality of words in a text displayed on the touch screen when the pressure by the first gesture imputed onto the touch screen exceeds the designated value.