Shared De-interlacing and Scaling for Multi-window Display

Solution Overview

Problem

Existing display controlling devices are expensive and inefficient in displaying multiple windows due to the need for multiple sets of de-interlacing and scaling devices, which increases costs and complexity.

Innovation Solution

A display controlling device that uses a shared de-interlacing and scaling device setup with selective de-interlacing and scaling parameters, along with a mixer, to process multiple video fields efficiently, allowing for multi-window display without the need for multiple sets of de-interlacing and scaling devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple sets of de-interlacing and scaling devices are used to display multi-windows, then the display functionality is improved, but the device complexity and cost increase

Engineering Contradiction:

Improvemulti-window display capabilityVSAvoidnumber of de-interlacing and scaling devices

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple de-interlacing and scaling operations into a single shared device. The mixer combines scan lines from multiple field buffers, and one de-interlacing device processes the combined data to generate multi-window output, eliminating the need for separate de-interlacing devices for each window.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The de-interlacing and scaling devices are designed to handle multiple video fields universally. A single de-interlacing device can process data from any field buffer, and a single scaling device can scale output for any window, making the system multi-functional rather than requiring dedicated devices for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple sets of de-interlacing and scaling devices are used to display multi-windows, then the display functionality is improved, but the manufacturing cost increases

Engineering Contradiction:

Improvemulti-window display capabilityVSAvoidmanufacturing cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent merges multiple de-interlacing and scaling operations into a single shared device. The mixer combines scan lines from multiple field buffers, and one de-interlacing device processes the combined data to generate multi-window output, eliminating the need for separate de-interlacing devices for each window.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The de-interlacing and scaling devices are designed to handle multiple video fields universally. A single de-interlacing device can process data from any field buffer, and a single scaling device can scale output for any window, making the system multi-functional rather than requiring dedicated devices for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If multiple sets of de-interlacing and scaling devices are used to display multi-windows, then the display functionality is improved, but the operational efficiency decreases

Engineering Contradiction:

Improvemulti-window display capabilityVSAvoidprocessing efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent merges multiple de-interlacing and scaling operations into a single shared device. The mixer combines scan lines from multiple field buffers, and one de-interlacing device processes the combined data to generate multi-window output, eliminating the need for separate de-interlacing devices for each window.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The shared de-interlacing and scaling devices operate continuously to process data from multiple field buffers. The mixer continuously combines scan lines, and the de-interlacing device continuously processes the combined data, ensuring uninterrupted multi-window display without the need to switch between separate device sets.

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentUS7463307B2Display controlling device capable of displaying multi-windows and related method

Publication Date: 2008.12.09 XUESHAN TECH INC

AI summary

A display controlling device includes a first line buffer, a second line buffer, a buffer controller, a mixer, a de-interlacing device, a de-interlacing controller, a scaling device, a scaling controller, and a window display controller. The window display controller controls the operations of the mixer, the de-interlacing controller, and the scaling controller according to a first coordinate parameter and a second coordinate parameter, wherein a first video frame and a second video frame are displayed on a display device. The window display controller controls the de-interlacing device and the scaling device to selectively operate in either a first clock or a second clock.