Display Pointer Control Using Relative and Absolute Coordinates
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Solution Overview
Problem
Users face inconvenience when controlling electronic devices with remote controllers, as they often need to press multiple buttons to navigate and select content on the screen, particularly when using a pointer to select specific content.
Innovation Solution
A display apparatus and control method that utilize a combination of relative and absolute coordinate methods to control a pointing object, where the processor determines the movement area (screen or margin area) and adjusts the pointing object's movement accordingly, using signals from a remote control device with sensors like acceleration, geomagnetic, and gyro sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a pointer is used to select specific content on the screen, then selection precision is improved, but the number of button presses required increases
Solution Approach 1:
The patent replaces the mechanical button-pressing system with an optical sensing system. The remote control device uses an optical sensor to detect the user's hand movement and pointing direction, converting physical movement into control signals that move the pointer on screen without requiring button presses. This substitution eliminates the need for multiple discrete button operations while maintaining precise selection capability.
Solution Approach 2:
The patent introduces an intermediary pointing object (pointer or cursor) that mediates between the user's hand movement and the content selection. The pointer acts as a mediator that translates continuous hand motion into discrete selection actions, allowing users to navigate and select content through natural pointing gestures rather than sequential button presses.
2Adaptability or versatility
If multiple buttons on the remote controller are used for navigation and selection, then control functionality is improved, but ease of operation deteriorates
Solution Approach 1:
The patent makes the remote control device universal by enabling it to perform multiple functions through a single pointing gesture mechanism. Instead of requiring separate buttons for navigation, selection, and other controls, the optical sensing system interprets different aspects of hand movement (direction, speed, duration) to execute various control functions, making the device more versatile while easier to operate.
Solution Approach 2:
The remote control device performs self-service by automatically detecting and interpreting user intent through optical sensing of hand movements. The system autonomously determines navigation direction, selection timing, and other control parameters without requiring the user to manually press buttons or configure settings, thereby simplifying operation while maintaining full control functionality.
3Ease of operation
If the pointer moves according to relative coordinate method within the screen area, then ease of operation is improved, but precision deteriorates when the remote control device is outside the screen area
Solution Approach 1:
The patent implements a dynamic coordinate system that automatically adapts its reference frame based on the remote control device's position. When the device is within or near the screen area, the system uses a relative coordinate system that follows the device's movement for ease of operation. When the device moves outside the screen area, the system dynamically switches to an absolute coordinate system anchored to the screen boundaries, ensuring precise positioning regardless of the device's location.
Solution Approach 2:
The patent changes the coordinate system parameter based on the remote control device's position relative to the screen. The system monitors the device's location and switches between relative and absolute coordinate modes, adjusting the positioning parameter to optimize both ease of operation and precision according to the current operational context.
Data Source
AI summary
A display apparatus including a display configured to display a pointing object, a communicator configured to perform communication with a remote control device which recognizes a movement and transmits a signal corresponding to the recognized movement, and a processor configured to control a moving state of the pointing object based on the signal received from the remote control device. The processor controls the moving state of the pointing object according to a relative coordinate method for a first area where a screen of the display is included, and controls the moving state of the pointing object according to an absolute coordinate method for a second area outside the first area.