RF IC Card Back Cover for Wireless Phone Functions
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Solution Overview
Problem
Existing solutions for implementing non-telecommunication functions like mobile wallets and access control in cell phones require modification of the device, which is costly, complex, and lacks versatility due to the need for customized antennas and connection members.
Innovation Solution
A high-frequency RF IC card device with an integrated RF antenna, operating in UHF or SHF frequencies, that enables wireless RF data exchange without modifying the cell phone, using a flexible circuit board and IC card interface protocols like ISO 7816 and SDIO, allowing for functions such as cell phone wallets and access control without external antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an RF antenna and flexible connection member are embedded into the mobile communication terminal, then wireless RF data exchange function is achieved, but the modification process becomes complicated and costly
Solution Approach 1:
The patent extracts the RF antenna function from the mobile terminal's internal structure and relocates it to the back cover. The back cover is divided into a first back cover (non-RF area) and a second back cover (RF area), with the RF antenna embedded only in the second back cover. This extraction allows the antenna to be added without modifying the terminal's internal components, simplifying the modification process while achieving wireless RF data exchange.
Solution Approach 2:
The back cover is segmented into two distinct parts: a first back cover for non-RF functions and a second back cover for RF functions. This segmentation allows the RF antenna to be integrated into only the necessary portion of the back cover, reducing the overall complexity of modification while maintaining the wireless communication function.
2Adaptability or versatility
If a customized antenna and flexible connection member are provided to every user, then non-telecommunication functions are achieved, but the cost increases significantly
Solution Approach 1:
The patent creates a universal back cover design that can be applied to multiple mobile terminal models. The back cover integrates both RF and non-RF areas, allowing a single design to serve multiple functions and compatibility with different terminal types. This universality reduces per-unit costs by eliminating the need for customized antennas and connection members for each user, while still enabling non-telecommunication functions like wireless payments and access control.
3Reliability
If the RF antenna is installed inside the battery or between the battery and back cover, then wireless function is achieved, but the implementation becomes difficult and costly
Solution Approach 1:
The patent extracts the RF antenna from the internal battery area and relocates it to the back cover's RF area. This extraction moves the antenna to an external, easily accessible location that does not require disassembly of the battery or internal components. The antenna is embedded in the second back cover, which can be installed or replaced without modifying the terminal's internal structure, significantly easing the manufacturing and implementation process.
4Ease of manufacture
If existing cell phones are not modified, then the device remains simple and cost-effective, but non-telecommunication functions like mobile wallet cannot be achieved
Solution Approach 1:
The patent merges the RF antenna function with the back cover structure. The back cover is designed to include both a first back cover for structural support and a second back cover embedded with the RF antenna. This merging allows the back cover to serve dual purposes: maintaining device simplicity by using an existing component (back cover) while adding non-telecommunication functions through the integrated RF antenna. The solution achieves functionality addition without requiring modifications to the phone's internal components.
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 convenient, low-cost implementation of wireless RF data exchange and non-telecommunication functions in existing cell phones without modification, overcoming the limitations of previous solutions by using high-frequency signals that can penetrate phone enclosures and reducing the need for external antennas, thus enhancing versatility and security.
Implementation Method 1
an RF antenna, operating in UHF or SHF frequencies, that enables wireless RF data exchange
Data Source
AI summary
A radio frequency communication system, method, and device operate in the VHF, UHF, or SHF range, where a controller controls the radio-frequency communication range provided by the VHF, UHF, or SHF radiation.