Dynamic Slider Control for Precise Display Value Adjustment
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Solution Overview
Problem
Existing computer systems face challenges in accurately manipulating image data on display devices, particularly with slider controls, where the constant distance ratio between input device motion and cursor movement is often unsuitable, leading to cumbersome operations and inaccuracies in adjusting display values.
Innovation Solution
Implementing a method where a touch-sensitive device allows for concurrent first and second user inputs to control the direction and speed of cursor movement, and to change display values by a first amount and a micro-amount, enabling precise adjustments through sliding and tapping gestures on a slider control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a constant distance ratio is used for cursor movement, then the operation is simple to implement, but the operation becomes cumbersome and inaccurate for different applications
Solution Approach 1:
The patent implements dynamic adjustment of the distance ratio between input device motion and cursor movement based on the current display value range. As the indicator element approaches the ends of the slider control, the system automatically adjusts the ratio to provide finer control, transforming a static constant ratio system into a dynamic adaptive one that resolves the contradiction between operational simplicity and precision.
Solution Approach 2:
The system changes the distance ratio parameter dynamically during operation. When the indicator element is near the center of the slider, a larger distance ratio is used for faster movement. When near the ends, a smaller distance ratio is applied for precise adjustments. This parameter change strategy allows the same input device to provide both rapid navigation and fine-tuned control.
2Speed
If the distance ratio A/B is too low, then the cursor moves quickly across the display device, but the cursor moves erratically and inaccurately
Solution Approach 1:
The distance ratio is dynamically adjusted based on the position of the indicator element within the slider control. When the indicator is in the middle range, a higher ratio is used for faster cursor movement. When the indicator approaches the ends, the ratio decreases to provide finer control and prevent erratic movement, thus resolving the speed-precision tradeoff.
Solution Approach 2:
Different distance ratios are applied in different regions of the slider control. The middle region uses a larger ratio for speed, while the end regions use smaller ratios for precision. This local differentiation of control parameters allows the system to optimize both speed and precision in their respective operational zones.
3Measurement precision
If the distance ratio A/B is too high, then the user has to roll the electronic mouse or track ball multiple times to reach the target on the screen, but the operation becomes tedious
Solution Approach 1:
The system dynamically adjusts the distance ratio based on the current position within the slider control range. When the indicator element is in the middle portion, a higher ratio is applied to reduce the number of rolling actions needed. When near the ends where precision is needed, the ratio is reduced. This dynamic adjustment maintains productivity while ensuring precision is available when needed.
Solution Approach 2:
The distance ratio parameter is changed during operation based on the indicator element's position. The system monitors the range covered by the indicator and adjusts the ratio accordingly, changing from higher values (for efficiency) to lower values (for precision) as the user approaches the target display value, thus resolving the productivity-precision contradiction.
4Area of stationary object
If the display device size is limited, then the device is portable and compact, but the user cannot accurately adjust the indicator element on the slider control with a finger
Solution Approach 1:
The patent replaces direct mechanical finger manipulation of a physical slider with touch-sensitive device input. The touch-sensitive device detects finger position and translates it to indicator element movement, eliminating the need for precise manual manipulation on a small display while maintaining adjustment precision through software-based control.
Solution Approach 2:
The touch-sensitive device acts as an intermediary between the user's finger and the slider control indicator element. It provides a larger effective input area for finger interaction while mapping the input to the smaller display space, thus resolving the contradiction between compact display size and accurate adjustment capability.
Data Source
AI summary
A method includes displaying a slider control on one or more of a display device or a display screen of a touch-sensitive device with a computer system. The slider control changes a display value of one or more components shown on the display device responsive to movement of an indicator element in the slider control. A first user input is received on the touch-sensitive device of the computer system associated with movement of the indicator element in the slider control. The display value of the one or more components changes by a first amount based on a distance that the first user input moved the indicator in the slider control. A second user input is received on the touch-sensitive device and changes the display value of the one or more components by a micro-amount that is smaller than the first amount that the display value is changed.