Content Output Control for Mixed 2K and 4K Media
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Solution Overview
Problem
The current situation involves a mix of 2K (HD) and 4K content on media, with reproduction and display devices being either 4K compatible or non-compatible, leading to challenges in optimal reproduction control and user notification, as there are no specific proposals for determining content type and display device capabilities.
Innovation Solution
An information processing system that reads content information from media and display device capabilities to perform accurate output control and notification, using content information A to determine initial output resolution and content information B to check for 4K content presence, with 4K display capability information stored in a register to enable efficient output control and message processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If 4K content is stored on media, then high-resolution image quality is improved, but compatibility with 2K display devices deteriorates
Solution Approach 1:
The media is divided into multiple areas with different content resolutions (4K area and 2K area). The reproduction apparatus reads management information to identify which area contains the desired content and reproduces only that area, enabling selective output of appropriate resolution content to match display device capabilities.
Solution Approach 2:
The reproduction apparatus dynamically adjusts its output resolution based on the capabilities of the connected display device. By reading management information from the media and detecting display device specifications, the system automatically selects whether to output 4K or 2K content, ensuring optimal compatibility without manual intervention.
2Adaptability or versatility
If media contains both 2K and 4K content, then versatility is improved, but reproduction control complexity increases
Solution Approach 1:
Management information indicating the presence and location of 4K content is recorded in advance on the media during the manufacturing process. This preliminary tagging allows the reproduction apparatus to quickly identify and select appropriate content areas without complex real-time analysis, simplifying the reproduction control process.
3Measurement precision
If display device capabilities are detected, then output control accuracy is improved, but startup time increases
Solution Approach 1:
The reproduction apparatus performs display device capability detection and determines the appropriate output resolution during the startup phase before content reproduction begins. By completing this detection process in advance, the system ensures accurate output control while minimizing the impact on user experience, as the detection occurs during the necessary startup sequence.
Data Source
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AI summary
There is provided an apparatus and method to control reproduction of content recorded to a recording medium; control reading, from the recording medium, first content information indicating whether an initial output mode at a start of reproduction is 4K or 2K; and output a notification based on the initial output mode at start of reproduction indicated by the first content information.