Serial Data Phase Adjustment for High-Speed Camera Transfer
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Solution Overview
Problem
Existing phase adjusting devices for electronics, such as electronic cameras, face challenges in maintaining precision when increasing clock speed, particularly in determining threshold values and maintaining the relationship between data and clock phases, especially under varying temperature conditions.
Innovation Solution
A phase adjusting device comprising a first and second data obtaining unit, a determining unit, and a phase adjusting unit, which adjusts the delay amount of serial transfer data based on determinations made by the determining unit to ensure accurate phase alignment, utilizing a lookup table and CPU control to select appropriate signal paths and correct delay amounts for precise phase adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If clock speed is increased to improve data transfer speed, then productivity increases, but measurement precision of phase relationship deteriorates
Solution Approach 1:
The patent divides the phase adjustment process into multiple discrete steps with specific delay amounts (first delay amount, second delay amount). The determining unit tests different phase relationships by selecting from multiple predetermined delay amounts, allowing precise measurement even at high clock speeds by breaking down the continuous phase adjustment into segmented, testable discrete steps.
Solution Approach 2:
The patent applies preliminary action by pre-establishing multiple predetermined delay amounts before the actual data transfer operation. The determining unit uses these pre-prepared delay values to test and determine the optimal phase relationship in advance, ensuring that when high-speed transfer begins, the correct phase alignment is already established without real-time calculation delays.
2Ease of operation
If threshold value determination is simplified to ease operation, then ease of operation improves, but measurement precision of voltage determination deteriorates
Solution Approach 1:
The determining unit automatically performs threshold value determination and phase relationship detection without requiring manual intervention. The system self-adjusts by having the determining unit test different delay amounts and automatically identify the optimal phase relationship based on successful data stream detection, eliminating complex manual threshold setting while maintaining high precision through automated multi-step verification.
3Manufacturing precision
If multiple delay amounts are tested to improve phase adjustment precision, then manufacturing precision improves, but device complexity increases
Solution Approach 1:
The determining unit serves multiple functions: it detects data streams, determines threshold values, tests multiple delay amounts, and identifies optimal phase relationships all within a single integrated component. This multi-functionality allows the system to achieve high phase adjustment precision through multiple delay tests without proportionally increasing device complexity, as one unit performs what would otherwise require multiple separate components.
Data Source
AI summary
A determining unit of a phase adjusting device determines whether or not a data stream to be detected included in serial transfer data can be detected in each output (first output to fourth output) of a first data obtaining unit and a second data obtaining unit. A phase adjusting unit adjusts a delay amount given to the serial transfer data to be output based on a determination result of the determining unit.