Image Recording Apparatus Reel Number Management Across Formats
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Solution Overview
Problem
In video camera systems, managing data from multiple cameras using the same recording medium is challenging due to the lack of consistent camera ID and reel number identification, leading to operational inefficiencies in data management and post-production processes.
Innovation Solution
An image recording apparatus that sets and records a consistent reel number and identification information in the volume label, ensuring that management files are generated and recorded according to specific moving image formats, with the ability to update and reuse reel numbers and camera IDs across different recording formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If management files are generated for each moving image format in the same recording medium, then sorting and management of different formats is improved, but reel number allocation becomes complex and error-prone
Solution Approach 1:
The patent segments the recording medium into separate directories for different moving image formats (e.g., MXF directory and MP4 directory). Each directory contains management files and imaging contents specific to its format. This segmentation allows independent management of each format while maintaining consistent reel number allocation across the entire recording medium, resolving the contradiction between improved sorting capability and complex reel number allocation.
2Adaptability or versatility
If camera ID is changed when video camera or settings are changed, then adaptability to different cameras is improved, but identification consistency in volume label is lost
Solution Approach 1:
The patent applies preliminary action by recording the camera ID and reel number in the volume label before any imaging operation begins. This initial recording establishes a consistent identification framework that remains stable even when camera settings or devices are changed during subsequent operations. The volume label serves as a pre-established reference that maintains identification consistency while allowing flexibility in camera operations.
3Productivity
If multiple cameras use the same recording medium, then resource utilization is improved, but data management operability deteriorates
Solution Approach 1:
The patent segments the recording medium into format-specific directories (e.g., MXF directory for professional format, MP4 directory for standard format). Each directory maintains independent management files with consistent reel number allocation. This segmentation allows multiple cameras to efficiently share the recording medium while improving data management operability through clear organizational structure and consistent identification across all cameras and formats.
Data Source
AI summary
An image recording apparatus can record an appropriate reel number and an appropriate camera identification (ID) in a volume label of a recording medium even in a case where a management file is generated for each moving image format. In a case where a management file of a first moving image format set as a recording format of a moving image file is not recorded, and a management file of another moving image format is recorded in a recording medium, the image recording apparatus determines a reel number of the recording medium based on information about the reel number included in the management file of the another moving image format and records the management file of the first moving image format including the information about the determined reel number in the recording medium, and does not update or record the volume label in the recording medium.