Camera-Lens Data Transmission Protocol Pre-Registration
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Solution Overview
Problem
The existing communication system in interchangeable camera systems is delayed in acquiring lens information due to the need to determine and transmit the number of communication words, leading to control lag and inapplicability with new data streams.
Innovation Solution
An image capturing apparatus that includes a command registration requester to send command registration information for the transmission order of lens data and a transmission requester to continuously transmit lens data based on this information, allowing for efficient communication using a new data stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera body determines the number of communication words and transmits this information to the interchangeable lens before communication, then the communication protocol is established, but this process causes time delay and control lag in acquiring lens information
Solution Approach 1:
The camera body pre-stores multiple communication protocols with different data amounts in advance. When a lens is attached, the camera body immediately selects and uses the appropriate pre-defined protocol without needing to negotiate or determine the communication parameters during the attachment process, thereby eliminating the time delay associated with protocol establishment.
2Stability of the object's composition
If the communication system uses a fixed number of communication words determined in initial communication mode, then the communication protocol is stable, but the system cannot adapt to new data streams or future communication requirements
Solution Approach 1:
The camera body is configured to store multiple communication protocols with different data amounts dynamically. Depending on the specific lens attached and the communication requirements, the camera body can selectively switch between different pre-stored protocols. This dynamic selection capability allows the system to maintain stability through predefined protocols while simultaneously adapting to different lens types and future communication needs.
Data Source
AI summary
An image capturing apparatus sends to the lens apparatus command registration information indicative of a combination and a transmission order of a plurality of lens data to be transmitted from the lens apparatus to the image capturing apparatus, and requests the lens apparatus to continuously transmit the plurality of lens data in the transmission order based on the command registration information. The lens apparatus registers the command registration information in response to the command registration information received from the image capturing apparatus, and continuously transmits the plurality of lens data to the image capturing apparatus in the transmission order based on the command registration information in response to a transmission request command corresponding to the command registration information received from the image capturing apparatus.