Terminal Device Oscillation Detection for Precise Touch Input
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Solution Overview
Problem
Conventional touch interfaces struggle with accurately specifying positions on a display screen due to the hidden centroid of contact regions, leading to difficulties in precise operations, especially when using software designed for mouse inputs.
Innovation Solution
A terminal device with a controller, display, and sensor that detects oscillation and posture to enlarge specific display content, allowing users to perform accurate touch inputs by determining the enlarged display region and magnification based on detected oscillations and slide operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a touch interface is used for input, then intuitive operation is achieved, but accurate position specification becomes difficult
Solution Approach 1:
The patent introduces a temporal dimension to the touch interface by detecting oscillation patterns over time. Instead of relying solely on spatial coordinates, the system uses the time-based oscillation characteristics (frequency, amplitude, duration) of finger movements to identify selection intent, thereby achieving accurate position specification while maintaining touch interface intuitiveness
Solution Approach 2:
The patent utilizes the mechanical vibration oscillations naturally produced when a user touches and moves across a touch screen. By detecting these oscillation patterns through sensors, the system can distinguish between casual hovering and intentional selection, enabling accurate position specification based on the characteristic oscillation signature of deliberate user actions
2Measurement precision
If display size of menu items is increased for touch interface accuracy, then touch input accuracy improves, but software modification becomes necessary
Solution Approach 1:
The patent introduces an intermediary layer between the touch interface and the underlying software system. The oscillation detection mechanism acts as a mediator that translates various touch patterns into standardized selection signals, allowing the existing software to remain unchanged while achieving improved touch input accuracy through the intermediary's intelligent interpretation of oscillation patterns
3Ease of operation
If the gravity center of contact region is used as specified position, then touch interface operation is simplified, but exact position specification becomes inaccurate
Solution Approach 1:
The patent implements feedback by utilizing the oscillation pattern information that arises during the touching process itself. The system analyzes the oscillation characteristics generated by the user's finger movement and uses this feedback to refine position determination, going beyond the simple gravity center calculation to achieve more accurate position specification while maintaining ease of operation
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 touch input operations by converting contact positions within an enlarged display region to corresponding positions on the original image, reducing errors and improving usability without modifying existing software.
Implementation Method 1
a sensor detecting oscillation. The controller displays, in response to a predetermined oscillation detected by the sensor, enlarged display content which is a portion of an image displayed on the display
Data Source
AI summary
A terminal device includes a controller, a display displaying an image based on a control by the controller, and a sensor detecting oscillation. The controller displays, in response to a predetermined oscillation detected by the sensor, enlarged display content which is a portion of an image displayed on the display, the enlarged display content being enlarged and displayed in an enlarged display region. The sensor may be able to detect oscillation and posture, and the controller may obtain from the sensor the posture at the time when the sensor detected the oscillation and determine a position of the enlarged display region in the display according to the obtained posture.