Image Pickup Apparatus Dual Control Unit Communication Adaptation
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Solution Overview
Problem
Existing image pickup apparatuses face challenges in performing communication control suitable for various accessories, as current methods do not adequately account for the type and function of each accessory, leading to inefficiencies in control processing.
Innovation Solution
The image pickup apparatus and accessory systems incorporate multiple processors and memory units that function as control units, enabling communication through different protocols (SPI and I2C) to determine and adapt control methods based on acquired information, ensuring compatible communication with accessories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If communication control is performed without considering accessory type and function, then device complexity is reduced, but communication compatibility and control precision deteriorate
Solution Approach 1:
The image pickup apparatus segments communication control into multiple independent control units (first control unit for I2C communication, second control unit for SPI communication). Each control unit is responsible for a specific communication protocol, allowing the system to handle different accessory types through dedicated control paths without requiring a single complex control structure that must accommodate all protocols simultaneously.
Solution Approach 2:
The system changes communication parameters dynamically by selecting different control units based on the accessory type. The first control unit is activated for accessories requiring I2C communication while the second control unit handles SPI communication. This parameter switching approach allows the system to adapt to different communication protocols without maintaining permanent complex infrastructure for all protocols.
2Adaptability or versatility
If multiple control units are introduced to support different communication methods, then communication compatibility improves, but device complexity increases
Solution Approach 1:
A communication determination unit acts as an intermediary that receives accessory information and determines which control unit should handle the communication. This intermediary component simplifies the overall system architecture by providing a centralized decision-making point that routes communication tasks to the appropriate control unit, avoiding the need for each control unit to independently determine its activation conditions.
Solution Approach 2:
Multiple control units are designed with universal interfaces that can handle both I2C and SPI protocols, even though each unit is primarily optimized for one protocol. This multi-functionality allows the system to maintain simpler individual control unit designs while achieving comprehensive protocol support through the combination of multiple units.
Data Source
AI summary
An image pickup apparatus includes a first control unit communicable with the accessory by a first communication method, and a second control unit communicable with the accessory by a second communication method. The first control unit acquires control information on the second communication method from the accessory. The second control unit determines a control method for communication with the accessory based on the control information acquired by the first control unit.