Video Reproduction Apparatus Dynamic Special Effect Timing
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Solution Overview
Problem
Conventional video cameras struggle to accurately apply special effects like fade-in and fade-out to moving pictures recorded on magnetic tapes, as users cannot determine the required reproduction time for these effects, leading to insufficient fade processes due to unknown or insufficient reproduction time lengths.
Innovation Solution
A reproducing apparatus that detects the reproduction time of a moving picture signal and adjusts the special effect execution time based on the detected length, ensuring the special effect process is performed within the available time, either by setting it to the prescribed time, subtracting a predetermined time from the reproduction time, or inhibiting the process if the time is insufficient.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a magnetic tape is used as a recording medium, then the apparatus can reproduce moving pictures, but the user cannot accurately grasp the reproduction time for a given scene
Solution Approach 1:
The reproducing apparatus automatically detects and measures the reproduction time of moving picture signals without requiring user intervention. The control unit obtains reproduction time information from the recording medium and automatically compares it with the prescribed time for special effect processes, eliminating the need for manual time measurement and decision-making by the user.
2Ease of operation
If the user applies special effects without knowing the reproduction time, then the operation is simple, but the special effect process may not be adequately performed
Solution Approach 1:
The control unit automatically obtains feedback information about the reproduction time from the recording medium and uses this information to determine whether to apply special effects and how to adjust their parameters. This closed-loop control ensures that special effects are reliably applied by base on actual reproduction time, preventing inadequate processing while maintaining ease of operation.
3Productivity
If the reproduction time is shorter than the prescribed time for special effect process, then the playback is efficient, but the special effect process cannot be properly performed
Solution Approach 1:
The control unit dynamically adjusts the special effect execution time based on the detected reproduction time. When the reproduction time is insufficient for the prescribed special effect process, the system automatically reduces the execution time to match the available reproduction time, ensuring that special effects are applied to the maximum extent possible without exceeding the playback duration.
4Adaptability or versatility
If the user manually decides whether to apply special effects, then the control is flexible, but the operation becomes complex and time-consuming
Solution Approach 1:
The reproducing apparatus performs automatic decision-making regarding special effect application. The control unit compares the detected reproduction time with the prescribed time required for special effect processes and automatically determines whether to apply effects and what parameters to use, eliminating the need for complex manual decision-making while preserving adaptability to different time conditions.
Data Source
AI summary
A reproducing apparatus that is capable of applying a special effect process to a moving picture signal reproduced from a recording medium is disclosed. The reproducing apparatus is configured to set an execution time of the special effect process shorter than or equal to a prescribed time required for the special effect process.