Pulse Detection Imaging Circuit with Non-Linear Passive Load

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Solution Overview

Problem

Conventional high spatial resolution imaging systems cannot simultaneously detect energy pulses and provide high-resolution imagery, requiring manual mode switching that can result in missed opportunities for detection or image generation.

Innovation Solution

A pulse detection and imagery (PDI) circuit with a non-linear passive load is implemented, allowing for simultaneous energy pulse detection and high-resolution imagery by exploiting the non-linear response of the load to compress signals and using individual signal paths for both functions, enabling asynchronous and synchronous processing respectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual mode switching is used to detect energy pulses or provide imagery, then one function can be performed at a time, but the system cannot simultaneously detect pulses and provide high-resolution imagery

Engineering Contradiction:
Improvesimultaneous pulse detection and imagery capabilityVSAvoidmanual mode switching requirement
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent combines pulse detection and imagery functions into a single integrated system. The light sensor array simultaneously captures both pulsed light events and imaging information, merging two previously separate operational modes into one unified system that eliminates manual switching requirements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The imaging system is designed to perform multiple functions simultaneously - it can detect energy pulses, capture high-resolution imagery, and operate in both modes at the same time. The system's universal design allows it to adapt to different operational requirements without requiring mode changes.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If conventional imaging systems operate in separate modes for pulse detection and imagery, then each function can be optimized, but the system complexity increases due to mode switching mechanisms

Engineering Contradiction:
Improvedetection accuracyVSAvoidmode switching mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent eliminates the need for separate operational modes by merging pulse detection and imagery capabilities into a single simultaneous operation mode. This reduces device complexity by removing mode switching mechanisms while maintaining reliable detection accuracy through integrated signal processing.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system achieves multi-functionality without increasing complexity by designing a unified imaging system that inherently performs both pulse detection and imagery simultaneously, rather than requiring separate optimized modes with switching mechanisms.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If manual attenuation is used to detect both small and large laser pulses, then detection range can be extended, but the system requires manual adjustment and cannot operate automatically

Engineering Contradiction:
Improvedetection rangeVSAvoidautomatic detection capability
Core Design Contradiction:
Adaptability or versatilityVSExtent of automation

Solution Approach 1:

The patent implements dynamic range extension through logarithmic compression of the signal. This allows the system to automatically detect both small and large laser pulses without manual attenuation adjustments, as the logarithmic scaling dynamically adapts to varying signal intensities across a wide range.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the signal processing parameter from linear to logarithmic compression, enabling automatic detection of pulses across a wide dynamic range. This parameter transformation allows the system to handle both small and large laser pulses automatically without requiring manual attenuation adjustments.

Inventive Principle:
Principle #35Parameter changes

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

Enables automatic detection of both small and large laser pulses and high-resolution images without manual attenuation, ensuring simultaneous energy pulse detection and high-definition imagery without the need for mode switching.

Implementation Method 1

The light sensor generates one or both of an image signal and a pulse signal

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentUS11587962B2Imaging system including analog compression for simultaneous pulse detection and imaging
Publication Date: 2023.02.21 RAYTHEON CO
  • US11587962B2 patent drawing
  • US11587962B2 patent drawing
  • US11587962B2 patent drawing

AI summary

An imaging system includes a light sensor, a pulse detection imaging (PDI) circuit, and an image processing unit. The light sensor generates one or both of an image signal and a pulse signal. The pulse PDI circuit includes a first terminal in signal communication with the light sensor to receive one or both of the image signal and the pulse signal and a second terminal in signal communication with a voltage source. The image processing unit is in signal communication with the PDI circuit to receive one or both of the image signal and the pulse signal and to simultaneously perform imagery and pulse detection based on the image signal and the pulse signal, respectively.