Optical Detector Synchronization via Image Intensity Analysis

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Solution Overview

Problem

Conventional optical detecting devices are costly due to the need for an extra signal receiver to synchronize the exposure timing sequence of the image detector with the light emitting timing sequence of the reference light source, which increases manufacturing costs and element amounts.

Innovation Solution

An optical detecting device with a control unit that captures a continued image set to analyze intensity variations and adjusts the exposure timing sequence of the image detector to synchronize it with the light emitting timing sequence of the reference light source, eliminating the need for an extra signal receiver by directly adjusting the exposure timing based on the flickering state of the reference light source.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If an extra signal receiver is added to the reference light source to synchronize timing sequences, then synchronization accuracy is improved, but manufacturing cost and device complexity increase

Engineering Contradiction:
Improvesynchronization accuracyVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges the reference light source function with the image detection function by using the same image detector to perform both reference light capture and target object detection. This eliminates the need for separate signal receivers on the reference light source, reducing device complexity while maintaining synchronization accuracy through software-based timing analysis.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The image detector is designed to serve multiple functions: it acts as both the primary detection device for target objects and the reference point detection device. This multi-functional design eliminates redundant components while preserving the ability to achieve precise synchronization through the control unit's analysis of intensity variations in captured images.

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

2Measurement precision

If an extra signal receiver is added to the reference light source to synchronize timing sequences, then synchronization accuracy is improved, but manufacturing cost increases

Engineering Contradiction:
Improvesynchronization accuracyVSAvoidmanufacturing cost
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent merges the reference light source function with the image detection function by using the same image detector to perform both reference light capture and target object detection. This eliminates the need for separate signal receivers on the reference light source, reducing device complexity while maintaining synchronization accuracy through software-based timing analysis.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The image detector is designed to serve multiple functions: it acts as both the primary detection device for target objects and the reference point detection device. This multi-functional design eliminates redundant components while preserving the ability to achieve precise synchronization through the control unit's analysis of intensity variations in captured images.

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

3Measurement precision

If an extra signal receiver is added to the reference light source, then synchronization capability is improved, but element amounts increase

Engineering Contradiction:
Improvesynchronization capabilityVSAvoidelement amounts
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent merges the reference light source function with the image detection function by using the same image detector to perform both reference light capture and target object detection. This eliminates the need for separate signal receivers on the reference light source, reducing device complexity while maintaining synchronization accuracy through software-based timing analysis.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The image detector is designed to serve multiple functions: it acts as both the primary detection device for target objects and the reference point detection device. This multi-functional design eliminates redundant components while preserving the ability to achieve precise synchronization through the control unit's analysis of intensity variations in captured images.

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

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 reduces manufacturing costs and element amounts while ensuring effective synchronization of the image detector and reference light source, enhancing market competition and noise filtering capabilities.

Implementation Method 1

an optical detecting device utilizes a reference point with specific flickering frequency to filter the background noise. For capturing the reference point with the specific flickering frequency by the image detector

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentUS9459140B2Optical detecting device and related method of adjusting synchronization
Publication Date: 2016.10.04 PIXART IMAGING INC
  • US9459140B2 patent drawing
  • US9459140B2 patent drawing
  • US9459140B2 patent drawing

AI summary

A method of an optical detecting device for synchronizing an exposure timing sequence of an image detector with a light emitting timing sequence of a reference light source is disclosed. The method includes capturing a continued image set according to a predetermined period, analyzing intensity variation of the continued image set, and adjusting the exposure timing sequence of an image detector according to the intensity variation, so as to synchronize the exposure timing sequence of the image detector with the light emitting timing sequence of the reference light source.