Image Pre-Recording on Non-Volatile Media for Longer Capture
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Solution Overview
Problem
The duration of the pre-recording period in image recording apparatuses is constrained by the capacity of internal memory, limiting the convenience of long pre-recording periods.
Innovation Solution
Implementing a pre-recording function that records images onto a non-volatile recording medium before instructed recording, allowing the pre-recording to be performed independently of internal memory capacity constraints, with the option to change pre-recording methods based on determined conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If pre-recording is performed using internal memory, then pre-recording function is enabled, but pre-recording period duration is constrained by internal memory capacity
Solution Approach 1:
The patent transitions the pre-recording storage from internal memory (one-dimensional constraint) to external recording medium (adding spatial dimension). By recording pre-recorded images directly to an external recording medium instead of being constrained by internal memory capacity, the system enables extended pre-recording periods without being limited by the size of internal memory.
Solution Approach 2:
The patent introduces a buffer memory as an intermediary component between the image sensor and the recording system. The buffer temporarily holds captured images during pre-recording, allowing flexible management of data flow between the image sensor, processing units, and external recording medium, thereby enabling extended pre-recording periods.
2Speed
If pre-recording data is stored in internal memory, then quick access is enabled, but memory management complexity increases
Solution Approach 1:
The patent segments the storage system into buffer memory for temporary holding and external recording medium for permanent storage. This segmentation allows the buffer to handle quick access requirements while the external medium manages the bulk storage, simplifying overall memory management by dividing responsibilities between different storage components.
Data Source
AI summary
An image recording apparatus that has a pre-recording function for, prior to start of instructed recording, starting recording of an image captured using an image sensor is disclosed. The image recording apparatus performs the pre-recording and starts the instructed recording of the image captured using the image sensor according to a determination that an instructed-recording starting condition is satisfied while the pre-recording is performed. The image recording apparatus performs the pre-recording onto a non-volatile recording medium that is used for the instructed recording.