Biosensor Identification Reader Circuit Simplification

Solution Overview

Problem

Existing biosensor reading devices require a photodetector and light source for each segment, leading to complex circuits and increased manufacturing costs, as well as prolonged operating hours.

Innovation Solution

A biosensor reading apparatus using a smaller number of photodetectors and a configuration where light emitters are arranged around a light receiver, allowing for sequential turning on/off to read identification information recorded on a biosensor surface, with the option to connect photodetectors in series or parallel for simultaneous operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a photodetector and light source are used for each segment of the biosensor, then the identification information can be read accurately, but the circuit complexity increases and manufacturing costs rise

Engineering Contradiction:

Improveidentification information reading accuracyVSAvoidcircuit complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

Multiple photodetectors are electrically connected in series or parallel to form a single integrated light receiving unit. This merging approach allows multiple segments to be read using fewer independent photodetector circuits, reducing overall circuit complexity while maintaining the ability to distinguish identification patterns across different segments

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

A single photodetector or integrated light receiving unit is designed to serve multiple functions by detecting light from multiple segments sequentially. The system can read identification information from different segments using the same photodetector through temporal separation, making the component universal rather than dedicated to a single segment

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Measurement precision

If a photodetector and light source are used for each segment of the biosensor, then the identification information can be read accurately, but the manufacturing cost increases

Engineering Contradiction:

Improveidentification information reading accuracyVSAvoidmanufacturing cost

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

Multiple photodetectors are electrically connected in series or parallel to form a single integrated light receiving unit. This merging approach allows multiple segments to be read using fewer independent photodetector circuits, reducing overall circuit complexity while maintaining the ability to distinguish identification patterns across different segments

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

A single photodetector or integrated light receiving unit is designed to serve multiple functions by detecting light from multiple segments sequentially. The system can read identification information from different segments using the same photodetector through temporal separation, making the component universal rather than dedicated to a single segment

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If multiple light sources and photodetectors are disposed in a one-to-one ratio for each segment, then all segments can be read simultaneously, but the operating time is prolonged

Engineering Contradiction:

Improvereading speedVSAvoidoperating time

Core Design Contradiction:

ProductivityVSDuration of action of moving object

Solution Approach 1:

The light source is activated in periodic sequences corresponding to different segments, with the photodetector detecting reflected light from each segment in turn. By systematically turning the light source on and off for different time periods, the system reads multiple segments sequentially rather than requiring simultaneous operation, reducing the number of active components needed

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system transitions from a static configuration where multiple photodetectors operate simultaneously to a dynamic configuration where a single or reduced number of photodetectors operate sequentially. The photodetector's operational state changes over time to match the periodic activation of light sources for different segments, enabling time-multiplexed reading

Inventive Principle:

Principle #15Dynamics

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 configuration simplifies the driving circuits, reduces manufacturing costs, and decreases the time and effort needed for reading biosensor identification information, while accommodating multiple biosensors with a minimal component setup.

Implementation Method 1

detecting, at a light receiver, a light which has been projected from the light emitter and reflected from or penetrated through the biosensor

Methodology Applied

Scientific EffectLight reflection: Reflection

Data Source

PatentEP2799869B1Apparatus and method for reading identification information of biosensor

Publication Date: 2017.02.08 INFOPIA CO LTD

AI summary

An apparatus of reading identification information according to a code attached on a biosensor. In reading the identification information through a pattern of the existing biosensor, a photodetector and a light resource are required for each segment so as to read segments of each pattern. However, such a system may cause a complexity of circuit-driving, raise manufacturing costs, and prolong operating hours. Thus, to solve these problems, provided is a technology, which, in contrast to the existing technology, has advantages of using a small amount of electronic components and reduced driving circuits to shorten working hours, and the like.