Temporal Synchronization Circuit for Sensor Timestamp Alignment
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Solution Overview
Problem
Temporal derivation between data from multiple sensors leads to accuracy loss and potential loss of object detection functionality in convoluted neural networks, posing safety risks due to misaligned data.
Innovation Solution
A temporal synchronization circuit generates timestamps for sensor data to align and correct temporal deviations, incorporating a power management scheme based on SRAM characteristics to adjust power requirements and mitigate fault conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If data from multiple sensors is processed without temporal synchronization, then device complexity is reduced, but measurement precision deteriorates due to temporal deviation
Solution Approach 1:
The patent applies preliminary action by generating timestamps for sensor data at the point of data generation, before the data is processed by the neural network. This early timestamp generation ensures temporal information is captured and preserved throughout the data processing pipeline, allowing for later synchronization without adding complexity to the core processing operations.
Solution Approach 2:
The patent uses timestamps as an intermediary element that mediates between multiple sensors with different temporal characteristics. These timestamps serve as a common reference framework that allows data from sensors with varying frame rates and timing to be aligned and processed together, resolving the temporal deviation issue without requiring complex real-time synchronization hardware.
2Measurement precision
If temporal synchronization is implemented with high precision, then measurement precision is improved, but device complexity increases due to additional synchronization circuits
Solution Approach 1:
The patent extracts the temporal synchronization function from the main data processing path and implements it as a separate, dedicated timestamp generation mechanism. This extraction allows the synchronization logic to be handled independently through software or simple hardware circuits, rather than requiring complex integrated synchronization across the entire processing system.
Solution Approach 2:
The patent changes the parameter of temporal reference by introducing timestamps as an additional data attribute. This parameter change transforms the synchronization problem from a temporal coordination issue into a data association issue, where data from different sensors can be aligned by matching their timestamp parameters rather than requiring synchronized operation.
3Productivity
If sensor data is processed in real-time without temporal correction, then productivity is maintained, but reliability deteriorates due to undetected temporal misalignment
Solution Approach 1:
The patent implements feedback by using generated timestamps to monitor and detect temporal deviations in sensor data. The system processes data in real-time while simultaneously tracking timestamp information, allowing it to identify when temporal misalignment occurs and take corrective actions such as flagging affected data or adjusting processing parameters, thus maintaining both productivity and reliability.
Data Source
AI summary
Various embodiments of the present technology may comprise a method and apparatus for a temporal synchronization circuit. The temporal synchronization circuit may be configured to operate in conjunction other integrated circuits to align data received from a plurality of sensors. The temporal synchronization circuit generates time stamps for generated data that are used to correct for any temporal deviation in the data received from the sensors to mitigate fault conditions that may be generated by misaligned data. The temporal synchronization circuit may also generate a power management scheme based on the particular characteristics of a SRAM to adjust power requirements according to any temporal deviation in the received sensor data.