Imaging Apparatus Synchronous Wireless Communication Clock
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Solution Overview
Problem
Existing imaging systems require the use of a ring buffer or RTC time information to synchronize shooting timings across multiple imaging devices via synchronous wireless communication, which can be inefficient.
Innovation Solution
The implementation of an imaging apparatus with a wireless communication unit that synchronizes communication clocks between devices, allowing for synchronized shooting through a broadcast wireless signal, eliminating the need for ring buffers or RTC time information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If synchronous type wireless communication is used to synchronize shooting timings, then shooting synchronization is achieved, but ring buffer or RTC time information is required which increases device complexity
Solution Approach 1:
The patent extracts and removes the ring buffer and RTC time information components from the synchronous shooting system. Instead of using these complex time-keeping mechanisms, the invention directly uses the communication clock from synchronous wireless communication to trigger shooting, thereby achieving timing synchronization without the need for additional complex components.
Solution Approach 2:
The communication clock in synchronous wireless communication is made to serve dual purposes: both for data transmission timing and for shooting trigger timing. By making the communication clock universal for both communication and shooting control, the patent eliminates the need for separate time-keeping mechanisms like ring buffers or RTC modules.
2Device complexity
If broadcast wireless signal is used for shooting trigger, then shooting synchronization is achieved without ring buffer or RTC, but communication clock synchronization must be maintained
Solution Approach 1:
The patent implements feedback mechanisms in the synchronous wireless communication system where receiving devices send acknowledgment signals back to the transmitting device. This feedback loop allows for continuous monitoring and adjustment of communication clock synchronization, ensuring reliable timing even when using broadcast signals for shooting triggers.
Solution Approach 2:
The patent establishes communication clock synchronization before initiating broadcast wireless signals for shooting triggers. By pre-synchronizing the communication clocks among all devices and maintaining this synchronization state, the system ensures reliable timing without needing ring buffers or RTC time information during the actual shooting process.
Data Source
AI summary
The present invention is to perform synchronous shooting using synchronous type wireless communication more effectively. An imaging apparatus 1 includes: a synchronous communication unit M1 configured to perform synchronous type wireless communication to send/receive data in a communication synchronized state in which a communication clock of a communication partner and an own communication clock are synchronized; a synchronous communication control unit M2 configured to make a transition to the communication synchronized state to perform the synchronous type wireless communication with other imaging apparatuses that are to perform synchronous shooting; a broadcast reception unit M4 configured to receive a broadcast wireless signal transmitted to plural imaging apparatuses in the communication synchronized state; and a first control unit 104a configured to perform shooting at timing when the broadcast wireless signal is received.