TV Display Window Switching Method Maintaining Resolution

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Solution Overview

Problem

Current TV switching methods between main and sub-display windows often result in reduced display quality, especially when low-resolution content from a sub-window is enlarged to the main window, leading to a decline in resolution and picture size.

Innovation Solution

A method where the TV and server confirm channel identifiers for each window before switching, ensuring that the sources of content remain unchanged, with the server adjusting resolution and size parameters to maintain consistent display quality across both windows.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the TV switches between main display window and sub-display window using prior art methods, then the switching function is achieved, but the display quality (resolution and picture size) deteriorates

Engineering Contradiction:
Improveswitching functionVSAvoiddisplay quality
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The system performs preliminary actions by obtaining channel identifier information from both the broadcast system and server before switching occurs. The TV stores this channel identifier information in advance, so when switching is needed, the system can immediately retrieve and apply the correct channel identifiers to maintain display quality without degradation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback mechanisms where the TV exchanges channel identifier information with both the broadcast system and server. The TV obtains channel identifier information from the broadcast system and server, then uses this feedback information to correctly identify and display channels in both main and sub-display windows, preventing quality loss during switching.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If the TV receives program streams from both broadcast system and server simultaneously, then multiple content sources are supported, but the complexity of signal processing increases

Engineering Contradiction:
Improvemultiple content sourcesVSAvoidsignal processing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system segments the signal processing tasks by assigning different roles to different components. The broadcast system provides channel identifier information for terrestrial channels, while the server provides channel identifier information for network channels. The TV separately processes and stores these segmented information streams, then integrates them during display switching operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The TV acts as an intermediary that receives and processes channel identifier information from both the broadcast system and server. It stores this information and uses it as a mediator to correctly identify channels during switching, simplifying the overall signal processing complexity by centralizing the channel identification function in the TV.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9271046B2Switching method of different display windows of a TV
Publication Date: 2016.02.23 QINGDAO HAIER MULTI MEDIA CO LTD
  • US9271046B2 patent drawing
  • US9271046B2 patent drawing

AI summary

The present invention provides a switching method of the different display windows of a TV. Before the switching, the TV displays the TV programs, received from the broadcast system and a server, in a main window and a sub-display window respectively, and the switching method includes the following steps that: the TV and the server determine the channel identifiers of the TV programs displayed by each other; the TV displays the TV programs, received from the broadcast system and the server, with the channel identifiers of each other using the first display window and the second display window respectively. By the present invention, the sources of the contents displayed respectively in the first display window and second display window do not change, thereby maintaining the respective display quality (including resolution and picture size) of the two display windows unchangeable before and after the switching.