Peak Value Memory Circuit for Multi-Peak Signal Detection
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Solution Overview
Problem
Existing methods for analyzing time-varying signals fail to accurately detect multiple extreme values in terms of location and time, as they only account for the highest amplitude peak, ignoring noise and interference signals below a threshold, and lack the capability to differentiate between multiple relevant signal peaks.
Innovation Solution
The method employs a detection circuit with two peak value memories and generates distinct peak indicator signals to differentiate between multiple peaks, allowing for the detection of any number of relevant signal peaks by assigning location information and using an ultra-rapidly focusable acousto-optical lens for enhanced measurement speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single peak value storage device is used to track the signal, then the highest maximum amplitude is detected, but multiple extreme values cannot be precisely determined
Solution Approach 1:
The patent divides the single peak detection function into multiple independent peak value storage devices (first peak value storage, second peak value storage, etc.). Each storage device independently tracks and stores extreme values, enabling the system to detect multiple peaks simultaneously. This segmentation resolves the contradiction by maintaining precise detection capability while adding versatility for multiple peak identification.
Solution Approach 2:
Each peak value storage device is designed with universal functionality to track and store extreme values independently. The detection circuit can operate with any number of storage devices activated based on measurement needs, making the system adaptable for detecting one or multiple peaks without sacrificing detection precision for any individual peak.
2Measurement precision
If the detection circuit follows every signal increase up to the highest maximum, then the highest peak is detected, but noise and interference signals below threshold cannot be excluded
Solution Approach 1:
The patent applies different quality criteria to different detection processes by implementing threshold values for each peak value storage device. Each storage device can have its own threshold setting, allowing the system to filter noise and interference locally at each detection channel while maintaining sensitivity to relevant peaks. This resolves the contradiction by enabling noise exclusion without sacrificing the ability to detect the highest maximum when it exceeds the threshold.
3Adaptability or versatility
If multiple peak value storages are activated to detect multiple peaks, then any number of relevant signal peaks can be detected, but the device complexity increases
Solution Approach 1:
The patent implements a dynamic configuration where the number of activated peak value storage devices can be adjusted based on measurement requirements. The system can operate with one, two, or more storage devices activated simultaneously, allowing flexibility in adapting to different measurement scenarios without permanently increasing complexity. This dynamic approach resolves the contradiction by enabling versatile multi-peak detection only when needed.
Solution Approach 2:
The system allows for selective deactivation of peak value storage devices when they are not needed for the current measurement task. After completing measurements requiring multiple peaks, the system can deactivate additional storage devices, returning to a simpler operational state. This principle resolves the contradiction by enabling complex multi-peak detection capability while allowing the system to operate in a simpler mode when full capability is not required.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables precise detection of multiple signal peaks, excluding noise and interference, and allows for faster measurement cycles with repetition frequencies over 1 MHz, effectively addressing the limitations of prior art.
Implementation Method 1
an optical sensor with an ultra-fast focusable acousto-optic lens is used
Data Source
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AI summary
The invention relates to a method for electronically analyzing a signal (Ue (t)) which changes over time and which has at least one extreme value to be detected with respect to the amplitude and point in time of the signal by means of a detection circuit which operates as a peak value memory unit and which tracks the signal that changes over time after a threshold (Us) is exceeded and until the maximum amplitude is reached. When the extreme value is exceeded, a peak indicator signal (Usi(t)) is generated, and the maximum amplitude is stored. The invention is characterized in that in order to detect more than one extreme value in the signal which changes over time, the tracking of the signal (Ue(t)) is deactivated after the first peak indicator signal is generated and after the threshold is undershot; after the signal exceeds the threshold again further on, a further tracking of the signal (Ue(t)) is activated until the next extreme value to be detected is reached; an additional peak indicator signal (Usi(t)) is generated; the additional maximum amplitude is stored; and at the end of the measuring cycle, the two memory units are read and reset.