Multimedia Cursor Control via Video Signal Embedding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing multimedia devices face challenges in increasing cursor frequency without system reconfiguration, leading to inconvenient cursor movement on larger screens due to hardware reconfiguration issues and cost concerns.
Innovation Solution
A method and device for controlling a cursor by embedding cursor location and image information in a video signal, allowing for higher transmission frequency without system extension, using a receiving unit, cursor generating unit, and display unit to ensure natural and smooth cursor movement on wide screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If hardware reconfiguration is performed to increase cursor frequency, then cursor movement smoothness is improved, but system complexity and cost increase
Solution Approach 1:
The patent uses software-based cursor frequency control that replicates the effect of hardware reconfiguration through virtualization. Instead of physically reconfiguring hardware components, the system creates a software layer that simulates high-frequency cursor updates, achieving smooth cursor movement without actual hardware changes.
Solution Approach 2:
The patent replaces the mechanical/hardware-based cursor frequency control system with a software-based control mechanism. The controller unit processes cursor position signals and generates display signals through software algorithms, substituting physical hardware reconfiguration with electronic software processing to achieve the same functional outcome.
2Productivity
If hardware extension is implemented to increase cursor frequency, then cursor update rate is improved, but manufacturing cost increases
Solution Approach 1:
The patent makes the existing controller unit perform multiple functions - it not only controls basic device operations but also handles cursor frequency control and position tracking. This multi-functionality eliminates the need for separate hardware extensions dedicated solely to cursor frequency control, thereby reducing manufacturing costs while maintaining high cursor update rates.
Solution Approach 2:
The patent achieves higher cursor update rates by changing software parameters and processing algorithms rather than increasing hardware bandwidth or speed. The controller unit uses efficient software-based signal processing to generate high-frequency cursor update signals within the existing hardware capabilities, avoiding costly hardware upgrades.
3Ease of manufacture
If existing system is used without reconfiguration, then cost is reduced, but cursor movement becomes unnatural on large screens
Solution Approach 1:
The patent implements dynamic cursor frequency control that adapts to different screen sizes and user interactions. The controller unit adjusts cursor update rates and movement characteristics in real-time based on the displayed screen size and user input patterns, ensuring natural cursor movement on large screens while maintaining cost-effectiveness through software adaptation rather than hardware reconfiguration.
Solution Approach 2:
The patent addresses the cursor movement issue on large screens by adding a software processing dimension to the existing hardware system. Instead of physically expanding the hardware, the solution introduces a software layer that processes cursor signals and generates appropriate display outputs, effectively solving the naturalness problem through computational methods rather than physical expansion.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A multimedia device and method of controlling a cursor thereof are disclosed, by which a frequency of the cursor can be increased without system extension. The present invention includes receiving a cursor display signal from an input device, generating a location information of a cursor and an image information of the cursor in accordance with the received cursor display signal, embedding the generated location information of the cursor in the video signal, and displaying the image information of the cursor based on the location information of the cursor embedded in the video signal.