Non-Contact Device Dual Antenna LED Indicator
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Solution Overview
Problem
Existing non-contact type information processing devices require a power source to indicate their operating state, which can affect communication with mediums like smart phones and IC cards, and existing solutions that do not require a power source can interfere with communication.
Innovation Solution
A non-contact type information processing device with a first circuit for communication using electromagnetic induction and a second circuit with a light emitting element operated by an induced current at a separate resonance frequency, allowing the device to indicate its communication state without affecting the medium or requiring a power source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a power source is provided to drive an LED or buzzer for indicating operating state, then the device can provide visual or audio feedback, but the device complexity and power consumption increase
Solution Approach 1:
The patent applies the self-service principle by enabling the LED to be driven directly by the induced current from the antenna without requiring an external power source. The antenna receives electromagnetic energy and converts it to electrical current that directly powers the LED indicator, making the system self-sufficient and eliminating the need for additional power supply components.
Solution Approach 2:
The patent applies the multi-functionality principle by making the antenna serve dual purposes: it both communicates with the medium (NFC function) and simultaneously provides power to the LED indicator through electromagnetic induction. This eliminates the need for separate power source components while maintaining the indication function.
2Ease of operation
If a detection means with rectifier circuit and LED is provided in the conveying passage, then the operating state can be detected without power source, but communication with the medium is affected
Solution Approach 1:
The patent applies the dimensionality change principle by using a second antenna with a different resonance frequency (second dimension of frequency space) to power the LED, while the first antenna operates at the original resonance frequency for communication. This frequency separation allows both functions to coexist without interfering with each other, maintaining communication reliability.
Solution Approach 2:
The patent applies the segmentation principle by dividing the antenna system into two separate circuits: a first circuit for communication purposes and a second circuit for power supply to the LED. This segmentation allows each circuit to be optimized for its specific function without compromising the other, resolving the interference issue between detection and communication functions.
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 the device to indicate its communication state visually through a light emitting element without interfering with communication or needing a power source, enhancing user feedback and operational efficiency.
Implementation Method 1
a first circuit part having a first antenna, the first circuit part being configured to communicate with the medium at a first resonance frequency by electromagnetic induction
Implementation Method 2
a second antenna and a light emitting element which is operated by electric power obtained by an induced current that is received by the second antenna
Data Source
AI summary
A non-contact type information processing device structured to communicate with a medium in a non-contact manner may include a first circuit part having a first antenna, and the first circuit part may be configured to communicate with the medium at a first resonance frequency by electromagnetic induction. The non-contact type information processing device may further include a second circuit part having a second resonance frequency which is separated from the first resonance frequency, and the second circuit part may include a second antenna and a light emitting element which is operated by electric power obtained by an induced current that is received by the second antenna.