Camera Adapter Communication Switching for Lens Compatibility
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Solution Overview
Problem
Interchangeable lens systems face communication compatibility issues when an adapter is mounted between a camera and an interchangeable lens, as the lens may not support the communication specification required by the camera, leading to communication failures.
Innovation Solution
The system employs multiple contact units and communication units in the camera and adapter to switch between different communication paths, allowing communication with interchangeable lenses that do not support the direct camera specification by recognizing the adapter and switching to a compatible communication mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an adapter is mounted between a camera and an interchangeable lens, then the camera can communicate with lenses that have different mount shapes and communication specifications, but the communication path becomes complex and requires switching between multiple communication channels
Solution Approach 1:
The adapter acts as an intermediary device between the camera and interchangeable lens, containing multiple communication units that can switch between different communication specifications. The adapter receives communication requests from the camera, switches to the appropriate communication specification, and transmits to the lens, thereby resolving the contradiction between adaptability and complexity by isolating the complexity within the adapter rather than the entire system
Solution Approach 2:
The communication path within the adapter is made dynamic through switching mechanisms that can change connection states based on the required communication specification. The adapter dynamically switches between connecting to different contact units (first contact unit for first communication specification, second contact unit for second communication specification) depending on whether an interchangeable lens or another adapter is detected, allowing the system to adapt communication paths in real-time
2Adaptability or versatility
If the communication path is switched to enable third communication with interchangeable lenses, then communication compatibility is improved, but the risk of communication errors increases during the switching process
Solution Approach 1:
The system performs preliminary detection and recognition of the mounted accessory (interchangeable lens or adapter) before switching communication paths. The camera or adapter first communicates through the first communication specification to identify the mounted device type, then decides whether switching to the third communication specification is necessary. This preliminary action prevents premature switching that could cause communication errors
Solution Approach 2:
The communication switching process incorporates feedback mechanisms where the system monitors communication status and detects whether the interchangeable lens supports the third communication specification. Based on this feedback, the adapter adjusts the communication path accordingly, switching to the third communication specification only when confirmed necessary, thereby maintaining communication reliability while achieving adaptability
Data Source
AI summary
Image capturing apparatuses, adapters, systems, methods, and storage mediums are provided. At least one image capturing apparatus has a first contact unit, a second contact unit, a first communication unit that performs a first communication via the first contact unit, and a second communication unit that performs a second communication via the second contact unit. At least one image capturing apparatus also has a third communication unit that performs a third communication via a predetermined contact unit that is the first contact unit or the second contact unit of the image capturing apparatus. A control unit of at least one image capturing apparatus performs control to recognize a mounted adapter via the first communication or the second communication, transmit an instruction to the adapter after recognizing the adapter, and start the third communication after transmitting the instruction.