Image Pickup Device Interrupt Processing for Still Picture Capture
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Solution Overview
Problem
Existing digital cameras face challenges in seamlessly switching between still picture and moving picture modes, particularly in recording high-quality moving pictures with voices, as current methods either interrupt moving picture pickup or require complex interpolation of frames during still picture capture.
Innovation Solution
An image pickup device with an interrupt processing section that suspends and resumes moving picture pickup processing while continuously recording voices, allowing for parallel execution of still picture capture, ensuring synchronized frame cycles and minimizing interruption time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If moving picture pickup processing is interrupted to capture a still picture, then still picture quality is improved, but moving picture continuity and quality deteriorate
Solution Approach 1:
The patent applies preliminary action by recording voice data continuously before the still picture capture interrupt occurs. The voice recording section accumulates voice data in advance during the period before the interrupt, so that when the moving picture pickup is suspended for still picture capture, the voice recording can be seamlessly continued without interruption, maintaining the integrity of the audio-visual synchronization.
2Adaptability or versatility
If moving picture pickup is suspended for still picture capture, then still picture capture is enabled, but voice recording continuity deteriorates
Solution Approach 1:
The voice recording section performs preliminary recording by continuously accumulating voice data before the interrupt occurs. This preliminary action ensures that when the moving picture pickup is suspended for still picture capture, the voice recording can be continued seamlessly without interruption, maintaining audio-visual synchronization throughout the entire process.
Solution Approach 2:
The patent implements continuity of useful action by designing the voice recording section to operate continuously without interruption during still picture capture. The voice data recording proceeds uninterrupted while the moving picture pickup is suspended, ensuring that the voice recording maintains its continuity and can be seamlessly integrated with the moving picture frames after the interrupt.
3Reliability
If complex frame interpolation is performed during still picture capture, then moving picture playback continuity is improved, but device complexity increases
Solution Approach 1:
The patent applies the taking out principle by extracting the voice recording function from the moving picture pickup processing flow. The voice recording section operates independently and continuously, separate from the interrupt-based moving picture pickup and still picture capture processes. This extraction eliminates the need for complex frame interpolation of voice data, as the voice recording maintains its independence and continuity throughout the interrupt cycle.
4Productivity
If parallel processing of moving picture and still picture is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the picture capture system into distinct functional sections: a moving picture pickup section, a still picture pickup section, and a voice recording section. Each section operates with its own dedicated processing flow, allowing parallel execution of moving picture pickup and still picture capture while the voice recording section independently maintains continuous recording. This segmentation reduces the complexity of parallel processing by creating clear functional boundaries and independent processing paths.
Data Source
AI summary
An image pickup device is equipped with a function to a pickup still picture during a moving picture pickup operation with voices. After a moving picture pickup processing with voices is started (YES in S2), a moving picture recording processing and a voice recording processing are started (S14). Subsequently, when a shutter button is depressed halfway (YES in S16), the moving picture recording processing is switched to a processing to store substitute frames, which are a copy of frame data immediately preceding the half depression operation of the shutter button, instead of moving picture frames imaged in moving picture frame cycles (step S20), and a still picture pickup processing is performed. After the still picture pickup processing ends, the normal moving picture recording processing is resumed. When a picture recording end button is operated (YES in S17), a moving picture file with voices is created from frame data, which includes substitute frames, and voice data, both of which are accumulated and stored in a buffer memory (S18). As a result, even thought the moving picture pickup operation is interrupted, moving pictures can be recorded as a single moving picture file.