Event Sensor Signal Accumulation During Processor Busy States
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Solution Overview
Problem
Electronic devices face challenges in processing sudden increases in sensor signals efficiently, leading to blurring or loss of data due to processor overload, especially when the processor is in a busy state.
Innovation Solution
A sensor system with a determining circuit and output circuit that operates in accumulation mode when processor load is high, accumulating signals until conditions are met before outputting, allowing efficient signal processing during processor busy states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the processor processes sensor signals in real-time without accumulation, then the response speed is fast, but data loss and blurring occur when the processor is overloaded
Solution Approach 1:
The patent applies preliminary action by accumulating sensor signals in advance before the processor is ready to process them. The accumulation circuit stores incoming signals during processor busy periods, and only outputs them when the processor becomes available. This ensures no data is lost due to processor overload while maintaining data accuracy, resolving the contradiction between reliability and time loss.
2Productivity
If the processor handles all sensor signals immediately, then processing efficiency is high, but the system becomes unstable under sudden signal increases
Solution Approach 1:
The patent introduces an accumulation circuit as an intermediary between the sensor and the processor. This intermediary component buffers sensor signals, absorbing sudden increases in signal volume and releasing them at a manageable rate to the processor. This maintains system stability under load while preserving processing throughput, resolving the contradiction between productivity and stability.
3Loss of information
If the sensor outputs every detected event immediately, then the data completeness is high, but the processor becomes overwhelmed during frequent events
Solution Approach 1:
The accumulation circuit performs preliminary accumulation of sensor events before processor processing. It maintains data completeness by storing all detected events in sequence, then outputs them in manageable batches when the processor is ready. This prevents processor overload while ensuring no information is lost, and the patent manages complexity through simple accumulation logic rather than complex signal routing.
Data Source
AI summary
A sensor includes a determining circuit and an output circuit. The determining circuit receives a first signal from a pixel in response to light and outputs a second signal associated with occurrence of an event, based on the first signal. Based on the second signal being received in a time period between a first time when a third signal is received from a processor and a second time when a condition is satisfied, the output circuit outputs a fourth signal associated with occurrence of the event in the time period to the processor after the second time.