Display Pointer Speed Control for Accurate Menu Targeting
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Solution Overview
Problem
Existing digital TV services face challenges in precisely controlling the movement of a pointer due to user arm movement, leading to zig-zag patterns and difficulty in reaching desired menus.
Innovation Solution
A display device with a controller that moves the pointer in a specific direction by matching real coordinates to user inputs, even when the remote control is shaken, allowing horizontal or vertical movement based on menu arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pointer moves according to the actual movement of the remote control device, then the pointer can respond to user input, but the pointer moves in a zig-zag pattern and cannot be precisely controlled when the user's arm shakes
Solution Approach 1:
The patent introduces an intermediary processing layer between the remote control device movement and pointer display. The controller calculates a movement direction based on the initial position and current position of the pointer, and moves the pointer along this calculated direction rather than directly following the remote control's actual movement path. This intermediary calculation process filters out the zig-zag movements caused by arm shaking while preserving the intended directional input from the user.
2Adaptability or versatility
If the pointer follows the exact movement path of the remote control device, then the movement is natural, but the pointer cannot reach the desired menu accurately due to shaking
Solution Approach 1:
The patent performs preliminary calculation of the movement direction before actually moving the pointer. The controller determines the movement direction based on the initial position and current position of the pointer, and then moves the pointer along this pre-calculated direction. This preliminary action allows the system to anticipate and correct for potential shaking movements before they affect the pointer's final position, ensuring accurate arrival at the desired menu while maintaining natural movement flexibility.
Data Source
AI summary
A display apparatus can include a receiver to receive a signal; a display; a user input interface to receive a user input to move a cursor; and a controller to control the display to display contents in a first area, control the display to display at least a first function button in a second area, in response to the user input moving the cursor in the first area, control the cursor with a first moving speed, in response to the user input moving the cursor in the second area and when the cursor is a first distance from the first function button, control the cursor with a second moving speed toward the first function button, and in response to the user input moving the cursor in the second area and when the cursor is a second distance from the first function button, control the cursor with a third moving speed.