Time Code Terminal High Speed Synchronization Mode
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Solution Overview
Problem
Conventional methods for synchronizing electronic apparatuses using Linear Time Code (LTC) signals are inefficient due to a low number of synchronization signals per unit time, leading to prolonged phase matching times, and require manual user bit adjustments, complicating the operation.
Innovation Solution
An electronic apparatus with a TIME-CODE terminal that outputs a time code signal with predetermined bit values, increasing the number of signal level transitions per frame, thereby reducing phase matching time through a 'high speed synchronization mode' that sets all user bits to '1' or temporarily sets all bits except the sync word to '1' for enhanced synchronization efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If LTC signal is used for phase matching, then the number of terminals is reduced, but the number of synchronization signals per unit time decreases
Solution Approach 1:
The patent changes the parameter of user bits in the LTC signal from their conventional values to a specific pattern (all '1's or alternating '1's) to increase the number of signal level transitions. This parameter change transforms the LTC signal into a high-speed synchronization signal while maintaining terminal reduction, thus resolving the contradiction between terminal simplification and synchronization signal frequency.
2Loss of time
If user bits are manually set to increase signal transitions, then phase matching time is reduced, but operation complexity increases
Solution Approach 1:
The patent enables the system to automatically configure the LTC signal with optimized user bit patterns without requiring manual user intervention. The electronic apparatus autonomously sets the user bits to generate high-speed synchronization signals, eliminating the need for users to manually adjust bits while achieving rapid phase matching.
Solution Approach 2:
The patent pre-configures the LTC signal with optimized user bit patterns (all '1's or alternating '1's) before phase matching begins. This preliminary setup ensures that the signal contains maximum transitions from the start, enabling immediate high-speed synchronization without requiring manual adjustments during the process.
3Loss of information
If timer data is set in user bits, then information exchange between apparatuses is enabled, but the number of signal transitions does not necessarily increase
Solution Approach 1:
The patent changes the user bit pattern from conventional timer data to a specific transition-optimized pattern (all '1's or alternating '1's). This parameter change prioritizes signal transition frequency over information storage, enabling high-speed synchronization while sacrificing some information exchange capability in the user bits.
Data Source
AI summary
This invention provides an electronic apparatus which comprises a TIME-CODE terminal configured to output a time code signal which an external apparatus utilizes to perform synchronization related to a video, and a control unit configured to output a time code signal in which a bit in a predetermined field in the time code signal is set to a predetermined value, from the TIME-CODE terminal.