Optoelectronic Apparatus Non-Volatile Memory Calibration
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Solution Overview
Problem
Optoelectronic apparatuses in applications like printers face functional inaccuracies due to manufacturing tolerances and environmental factors, leading to potential malfunctions and reduced precision, making it difficult to ensure reliable operation and necessitating the discarding of deviating components.
Innovation Solution
Incorporating a non-volatile memory with an individual data set that stores specific operating parameters and transfer functions, allowing for adaptive operation and correction of deviations, enabling precise and reliable function even in deviating components, and facilitating retroactive adjustments through a data interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manufacturing tolerances are strictly enforced to ensure precise operation, then reliability improves, but manufacturing precision requirements increase leading to higher costs and component rejection
Solution Approach 1:
The patent changes the operational parameters of the optoelectronic apparatus by storing individual calibration data and transfer functions in non-volatile memory. Each apparatus is characterized during manufacturing and its specific parameters are stored, allowing the device to operate reliably despite manufacturing tolerances. This resolves the contradiction by accepting varied manufacturing precision while maintaining functional reliability through parameter adaptation.
Solution Approach 2:
The system implements feedback by reading stored individual calibration data and transfer functions from non-volatile memory during operation. The apparatus uses this stored information to compensate for its own manufacturing deviations, creating a closed-loop system that maintains reliability without requiring strict manufacturing precision control.
2Measurement precision
If individual calibration is performed for each component to account for deviations, then measurement precision improves, but device complexity increases due to additional storage and processing requirements
Solution Approach 1:
Instead of implementing complex real-time calibration systems, the patent creates a simplified copy of the calibration data by storing individual transfer functions and characteristic values in non-volatile memory during manufacturing. This copying approach enables high measurement precision while keeping the operational device complexity low, as the complex characterization work is done once during production rather than continuously during use.
Solution Approach 2:
The patent performs the complex calibration and characterization actions in advance during manufacturing, storing the results in non-volatile memory. This preliminary action eliminates the need for complex real-time processing during operation, thereby achieving high measurement precision without increasing operational device complexity.
3Reliability
If components deviating from specifications are discarded to maintain precision, then reliability improves, but productivity decreases due to component rejection
Solution Approach 1:
The patent changes the approach from discarding non-conforming components to adapting to their parameters. By storing individual calibration data and transfer functions for each apparatus in non-volatile memory, the system enables reliable operation of components with manufacturing variations. This resolves the contradiction by maintaining functional reliability while improving productivity through reduced component rejection.
4Adaptability or versatility
If adaptive operation with stored individual data is implemented, then adaptability improves, but device complexity increases due to additional memory and data interface components
Solution Approach 1:
The patent implements a universal non-volatile memory component that serves multiple functions: storing individual calibration data, storing transfer functions, and providing retroactive adaptability. This multi-functional approach enables high operational adaptability while minimizing the increase in structural complexity, as a single memory component performs multiple adaptive functions rather than requiring separate systems for each function.
Data Source
AI summary
An optoelectronic apparatus is provided that has at least one optoelectronic transmitter and at least one optoelectronic receiver. The optoelectronic apparatus furthermore has a storage device having at least one non-volatile memory that is adapted to store an individual data set. A data interface is furthermore provided that is adapted to at least partly read the individual data set out of the non-volatile memory of the storage device.