Radio Transmission Unit for Camera Flash Interoperability
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Solution Overview
Problem
Current camera systems face limitations due to proprietary communication protocols, restricting the use of flash devices across different brands and models, and lack interoperability, making it difficult for photographers and studios to use a variety of flash devices with different camera equipment.
Innovation Solution
A method utilizing an intermediate radio transmission unit for wireless communication between the camera and remote flash devices, allowing for standardized signaling and control of multiple flash devices without the need for physical attachment to the camera's hot shoe connector, enabling compatibility with various brands and models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If proprietary communication protocols are used for flash devices, then reliability of communication is improved, but adaptability to different camera brands and models deteriorates
Solution Approach 1:
The patent introduces a radio transmission unit as an intermediary device that sits between the camera and remote flash devices. This unit translates and mediates communication between different protocols, allowing the camera to communicate with flash devices from different manufacturers without requiring direct proprietary protocol compatibility between each camera-flash pair.
Solution Approach 2:
The radio transmission unit is designed to work with multiple camera brands and flash device types simultaneously. It provides universal communication capability by supporting multiple signaling schemes and being able to translate between different proprietary protocols, making a single unit compatible with various camera systems.
2Reliability
If physical connection to hot shoe connector is required, then reliability of synchronization is improved, but ease of operation and device versatility deteriorates
Solution Approach 1:
The patent replaces the mechanical connection system (hot shoe connector requiring physical attachment) with a wireless radio frequency communication system. The radio transmission unit establishes wireless synchronization with remote flash devices, eliminating the need for physical attachment while maintaining synchronization reliability through standardized wireless signaling protocols.
3Adaptability or versatility
If standardized signaling is implemented, then adaptability to different brands is improved, but device complexity increases
Solution Approach 1:
The radio transmission unit serves as a protocol translation intermediary that handles the complexity of multiple signaling schemes internally. By consolidating protocol translation logic in a single device, the complexity is localized rather than distributed across multiple camera and flash devices, making each individual component simpler while maintaining overall system adaptability.
Data Source
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AI summary
The present invention generally relates to the field of communication between electronic devices used for photography. In particular, the invention relates to a method, transmission unit, system and computer program for wireless communication between a camera and at least one remote flash device, such as photoflash units and related equipment. More in particular, the invention provides a way of controlling a plurality of flash devices from an intermediate radio transmission unit mountable on the camera, and utilized a delay a sequence flash control sequence so as to synchronize the function of the camera and the remote flash devices during image acquisition. Further the invention provides a way of controlling in the photoflash units settings for the main flash, wherein the setting are the last settings determined by the camera when the intermediate radio transmission unit was in a TTL-mode.