Single VDP Video Stream Processing with Image Merging

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Solution Overview

Problem

Conventional multi-video displays require multiple VDPs to process different video streams, leading to high costs and potential transitions between VDPs with different image qualities, resulting in poor user experience.

Innovation Solution

A video stream processing system that utilizes a single VDP to process multiple video streams, combined with an image merging circuit to merge output images from different streams, thereby reducing the number of VDPs needed and avoiding transitions between different image quality VDPs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple VDPs are used to process different video streams, then each video stream can be processed independently, but the cost increases and transitions between VDPs with different image qualities occur

Engineering Contradiction:

Improvevideo stream processing capabilityVSAvoidnumber of VDPs

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent makes a single VDP capable of processing multiple video streams by implementing a video stream switching mechanism that allows the VDP to handle different input sources sequentially. The VDP is configured to receive multiple video streams and switch between them based on control signals, enabling one VDP to perform the function of multiple VDPs while maintaining the ability to process different video content independently

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines multiple video stream processing functions into a single VDP unit. By merging the processing capabilities and using a unified output interface, the system reduces the total number of VDPs required while maintaining the ability to handle multiple video streams through time-division or priority-based switching mechanisms

Inventive Principle:

Principle #5Merging (Combining)

2Ease of manufacture

If multiple VDPs with different image qualities are used for cost consideration, then cost is reduced, but user experience deteriorates due to transitions between different image qualities

Engineering Contradiction:

ImprovecostVSAvoiduser experience consistency

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent changes the operational parameters of a single VDP dynamically by adjusting its processing mode, resolution settings, and output characteristics based on the specific video stream being processed. This allows the VDP to optimize its performance for different video content types and resolutions, maintaining high image quality across various scenarios without requiring multiple specialized VDPs with different quality levels

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12316901B2Video stream processing system and video stream processing method

Publication Date: 2025.05.27 MEDIATEK INC

AI summary

A video stream processing system, comprising: a first VDP, configured to process first input images of a first video stream to generate first output images, and configured to process second input images of a second video stream to generate second output images; and an image merging circuit, configured to merge one of the first output images and one of the second output images, to generate a first merged image.