Live Video Recall List for TV Channel Preview
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Solution Overview
Problem
Conventional television receivers do not allow users to preview the content of previously viewed channels without switching back to them, leading to unnecessary navigation and potential loss of interest in desired programming.
Innovation Solution
A recall list that displays live video streams of previously viewed channels, enabling users to select channels based on the content without leaving full-screen mode, by showing video streams corresponding to each channel in chronological order, allowing users to identify and choose programs of interest directly from the list.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the recall button switches directly to full-screen mode of the previously viewed channel, then the channel switching function is achieved, but the user cannot preview the content and may waste time navigating to uninteresting channels
Solution Approach 1:
The system displays a preview of the previously viewed channel content in the recall list before the user commits to switching to full-screen mode. This preliminary action allows users to see what they are about to switch to, preventing wasted navigation to uninteresting channels while maintaining easy recall access.
2Loss of information
If the recall list shows only channel identifiers without video streams, then the device complexity is reduced, but the user cannot identify programming content without switching to full screen mode
Solution Approach 1:
The recall list is segmented to display multiple previously viewed channels simultaneously, with each channel showing its video stream thumbnail, identifier, and timing information. This segmentation allows users to compare multiple channels at once without overwhelming the interface, providing content identification capability while maintaining manageable complexity.
3Loss of information
If the recall list displays multiple video streams simultaneously, then the user can identify programming without switching channels, but the interface complexity and information processing increase
Solution Approach 1:
The system displays partial video stream information (thumbnails or reduced-resolution previews) rather than full-quality video streams for each recalled channel. This partial action provides sufficient content identification capability while avoiding the excessive processing and display complexity of full-resolution simultaneous video streams.
Data Source
AI summary
A method and apparatus for display of a recall list is disclosed. In the method and apparatus, a content receiver receives a first recall command from a remote control and presents, on a display screen, a recall list. The recall list includes a plurality of live video streams of a respective plurality of channels included in the recall list. A live video stream is displayed in a respective region of the display screen. The live video stream may be a live broadcast of a respective channel showing an active live program. The content receiver receives a live stream selection from the remote control. The selected video stream is then displayed on the display screen.