Imaging Device Live-View Transmission Continuity
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Solution Overview
Problem
Existing imaging systems experience interruptions in live-view image transmission and reception during imaging operations, leading to potential missed opportunities for capturing images due to the suspension of live-view image display when a single-shot command is sent from an electronic terminal to an imaging device.
Innovation Solution
The implementation of an imaging device and electronic terminal that utilize different communication protocols for live-view image and captured image transmission, using UDP for real-time live-view image display and TCP for reliable captured image transfer, allowing continuous live-view image transmission without interruption during imaging operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera interrupts transmission of the live-view image to transmit the single-shot image, then the captured image can be transmitted reliably, but the live-view image transmission is interrupted causing potential missed imaging opportunities
Solution Approach 1:
The patent segments the image transmission process into two distinct channels: live-view image transmission and captured image transmission. The live-view image transmission operates continuously without interruption, while captured images are transmitted separately, allowing both functions to coexist without mutual interference.
Solution Approach 2:
The patent introduces a buffer memory as an intermediary component between the imaging element and the transmission units. The buffer temporarily stores captured images, allowing the live-view transmission to continue uninterrupted while captured images are prepared and transmitted separately through the buffer.
2Productivity
If the live-view image transmission continues without interruption during imaging operations, then imaging operations can be performed in succession, but the captured image transmission reliability may be compromised
Solution Approach 1:
The patent divides the transmission system into separate channels for live-view images and captured images. This segmentation allows the live-view transmission to maintain continuous operation while captured images are transmitted with appropriate reliability guarantees through dedicated transmission resources.
Solution Approach 2:
The patent performs preliminary actions by buffering captured images before transmission. The buffer memory prepares captured images in advance, ensuring they are ready for reliable transmission without interrupting the live-view stream, thus maintaining both continuity and reliability.
3Device complexity
If a single communication protocol is used for both live-view and captured image transmission, then the system is simpler, but it cannot simultaneously satisfy real-time display requirements and reliable transfer requirements
Solution Approach 1:
The patent applies different communication protocols to different transmission needs: a first communication protocol optimized for real-time live-view image transmission and a second communication protocol optimized for reliable captured image transmission. This local differentiation of protocol quality matches the specific requirements of each transmission type.
Solution Approach 2:
The communication system is designed with multi-functionality to handle both live-view and captured image transmissions. By incorporating multiple communication protocols within a single system, the communication infrastructure can adapt to different transmission requirements while maintaining a unified system architecture.
Data Source
AI summary
In a camera body capable of connecting to an electronic terminal, an imaging element captures an image of a subject and generates a live-view image. A transmission unit transmits the live-view image to the electronic terminal. A reception unit 191b receives, from the electronic terminal, an imaging request for the camera body. A body controller controls the imaging element, the transmission unit, and the reception unit. The body controller executes imaging performed by the imaging element and acquires a first image frame, which is a captured image, in response to the imaging request. The transmission unit transmits the live-view image to the electronic terminal after the imaging request without any interruption caused by transmission of the first image frame in response the imaging request.