Video Recording Apparatus External Terminal Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing video recording apparatuses face challenges in efficiently relating additional information to the correct time axis of video data, especially when using external terminals for inputting large amounts of text information, resulting in timing discrepancies that complicate video editing.
Innovation Solution
A video recording apparatus with a communication unit and recording state management unit that synchronizes with an external terminal to accurately record additional information at the intended position on the time axis, using a communication unit to send recording position information and allowing for real-time input of text information via an external terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If additional information is input through an external terminal with a highly operable character input unit, then the detail and amount of additional information can be increased, but the time required to input the text increases, causing a delay in relating the additional information to the correct position on the video time axis
Solution Approach 1:
The video recording apparatus transmits recording position information to the external terminal in advance, before the user finishes inputting the additional information. This allows the system to prepare the timing data beforehand, so that when the input is complete, the additional information can be immediately associated with the correct video timestamp without delay.
Solution Approach 2:
The system implements a feedback mechanism where the external terminal receives recording position information from the video recording apparatus, processes the additional information input, and returns the completed additional information along with the associated timing data. This feedback loop ensures that the additional information is accurately timed despite the extended input duration.
2Productivity
If a camera operator performs both shooting operation and additional information input simultaneously, then the operational efficiency can be maintained, but the complexity of the operation increases significantly
Solution Approach 1:
The system divides the additional information input function into a separate external terminal device, allowing the camera operator to focus on shooting while another person handles the additional information input. This segmentation of functions reduces the operational complexity for each individual while maintaining overall productivity.
Solution Approach 2:
The external terminal acts as an intermediary device between the video recording apparatus and the additional information source. It receives recording position information from the camera, processes the additional information input, and transmits the completed data back to the video recording apparatus, thereby simplifying the overall system operation.
3Reliability
If additional information is transmitted to the video recording apparatus after completion of input, then the input process can be completed thoroughly, but considerable time has already passed since the occurrence of the event being recorded
Solution Approach 1:
The recording position information is transmitted to the external terminal in advance, before the additional information input is completed. This preliminary transmission of timing data ensures that even though the input takes time, the system has already prepared the correct timestamp association, minimizing the effective time delay.
Data Source
AI summary
An external terminal having a communication unit capable of communicating with a video recording apparatus, the external terminal includes an input unit operable to input additional information from a user, an input start detecting unit operable to detect start of the input of the additional information to the input unit, and a recording state inquiring unit operable to inquire of the video recording apparatus and acquire information representing a recording position in video data currently being recorded by the video recording apparatus via the communication unit, when the input start detecting unit detects the start of the input of the additional information.