Event Marking Device for Retrospective Media Capture
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Solution Overview
Problem
Individuals face the tedious task of searching through extensive media recordings to identify notable events, as existing technologies lack efficient methods to mark and retrieve specific moments from captured media.
Innovation Solution
An event marking device with a microcontroller, trigger circuit, real-time clock, memory, and communication interface that generates and records trigger signals, allowing users to easily mark notable events and retrospectively capture relevant media by outputting trigger event data to external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If users manually search through extensive media recordings to identify notable events, then they can find specific moments, but the process is tedious and time-consuming
Solution Approach 1:
The system performs preliminary recording of media content continuously before a trigger event occurs. When the user activates the trigger circuit, the system has already captured the surrounding media content, eliminating the need for manual searching through recordings. The microcontroller reads the real-time clock to capture the exact timestamp of the trigger event, and the communication interface transfers this marked event data to the external device for quick retrieval.
2Reliability
If the system continuously records all media content for later retrieval, then all events are captured, but storage requirements and data management become complex
Solution Approach 1:
The system extracts only the essential information needed for event identification: the real-time timestamp captured by the real-time clock when the trigger circuit is activated. This extracted trigger event data is stored in memory and transferred via the communication interface to an external device, separating the marking function from the media recording function and simplifying data management while maintaining reliability of event capture.
3Speed
If users want to quickly retrieve specific event recordings, then retrieval speed improves, but the ability to capture unexpected events beforehand is reduced
Solution Approach 1:
The system continuously monitors and records media content in advance, maintaining a buffer of recent recordings. When the user activates the trigger circuit, the system has already captured the surrounding media content, enabling immediate retrieval of the event and surrounding context without manual searching. The real-time clock provides precise timestamp marking for instant location of the event.
Data Source
AI summary
An event marking device marks the real time at which notable events occur. When a notable event occurs, a user causes the event marking device to generate a trigger signal. The event marking device includes a real-time clock. When the user causes a trigger signal to be generated, a microcontroller of the event marking device reads the real-time clock and writes trigger event data to a memory indicating a real time at which the trigger signal was generated. The event marking device outputs the trigger event data to an external device.