Video Playback Apparatus Highlight Scene Determination

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Solution Overview

Problem

Users face difficulties in efficiently grasping the content of large amounts of video data due to the lack of a user-friendly interface for highlighting important scenes, as existing technologies require time designation and complex gauges for understanding highlight playback.

Innovation Solution

A video playback apparatus with input and display means that ranks video scenes by importance, determines playback scenes based on user-defined parameters, and displays a trigger image between scenes to indicate highlight playback, allowing users to easily identify and view important content within a designated time frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If only important scenes are played back without special display means, then the user can grasp video content quickly, but it becomes difficult for the user to distinguish that highlight playback is occurring

Engineering Contradiction:
Improvevideo content grasping speedVSAvoidplayback mode distinguishability
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent applies visual distinction techniques by displaying representative images of skipped scenes in a different display style (e.g., thumbnail size, different color tone, or reduced brightness) compared to played scenes. This allows users to immediately recognize when highlight playback is occurring while maintaining fast content grasping speed.

Inventive Principle:
Principle #32Color changes

2Loss of information

If a gauge displaying important scene position and current playback position is provided, then the user can understand highlight playback, but the display screen becomes complicated

Engineering Contradiction:
Improveplayback status informationVSAvoiddisplay interface complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent moves the playback status information from a separate gauge into the main video display area by showing representative images of skipped scenes overlaid on or adjacent to the current playback scene. This integrates the information display into the existing visual flow, providing comprehensive playback status without adding separate complex gauges.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent creates simplified visual copies (representative images/thumbnails) of the skipped scenes and displays them in the playback area. These copies convey the essential information about what scenes are being skipped without requiring the user to interpret complex gauge readings, thus reducing display complexity while maintaining information completeness.

Inventive Principle:
Principle #26Copying

3Productivity

If the user designates viewing time to grasp content quickly, then content understanding efficiency improves, but the user interface becomes more complex requiring time designation

Engineering Contradiction:
Improvecontent understanding efficiencyVSAvoidinterface simplicity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The system automatically analyzes the video content, identifies important scenes based on predetermined criteria (scene changes, audio levels, motion detection), and determines playback timing without requiring explicit user input for time designation. The user simply activates highlight playback mode, and the system self-manages the scene selection and timing optimization.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system allows users to adjust playback parameters (such as maximum playback speed, minimum scene duration, or importance thresholds) rather than requiring precise time designations. This enables content understanding efficiency improvement through parameter optimization while maintaining interface simplicity by providing intuitive control options.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS7796857B2Video playback apparatus
Publication Date: 2010.09.14 MAXELL LTD
  • US7796857B2 patent drawing
  • US7796857B2 patent drawing
  • US7796857B2 patent drawing

AI summary

A video playback apparatus includes: video data inputting unit; a ranking data inputting/generating unit that inputs or generates ranking data where scenes in video data are ranked according to importance; a playback scene determination parameter inputting unit that inputs parameters when determining scenes to be played back according to importance; a playback scene determining unit that determines playback scenes based on ranking data and playback scene determination parameters; and a display unit that displays playback scenes. A viewing time of video data that the user desires and a maximum time width of each playback scene are inputted to the playback scene determination parameter inputting unit, and the playback scene determining unit cuts scenes so that the playback time of the playback scenes fits the maximum time width, and determines the playback scenes so that the sum of the playback time of the playback scenes fits within the viewing time.