IC Chip Function Switching via GPS Position Detection
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Solution Overview
Problem
Existing information processing terminals with IC chips face significant modification costs due to their tamper-proof nature, making it difficult to change functions once they are shipped, as modifications require accessing and altering parameters within the IC chip.
Innovation Solution
An information processing terminal equipped with a built-in IC chip that uses GPS signals to determine its position and automatically select functions without altering data within the IC chip, allowing dynamic switching of functions based on location without modifying the IC chip's parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the IC chip is tamper-proofed to ensure security, then security is improved, but the ability to modify functions after shipment deteriorates
Solution Approach 1:
The patent divides the IC chip into multiple independent data areas, each storing different function parameters. This segmentation allows the system to switch between functions by selecting different data areas without modifying the chip structure or security properties. The function selection is achieved through external control signals that redirect operations to different data areas, resolving the contradiction between security and adaptability.
Solution Approach 2:
The patent implements dynamic function switching by making the active data area configurable through external control. Instead of fixed function assignment, the system can dynamically redirect operations to different data areas based on external signals. This dynamic reconfiguration capability allows function modification without physical chip modification, maintaining security while enabling adaptability.
2Adaptability or versatility
If parameters are accessed within the IC chip for function modification, then function adaptability is improved, but modification cost and complexity increase
Solution Approach 1:
The patent introduces an intermediary control mechanism that manages data area selection from outside the IC chip. This intermediary layer abstracts the complexity of parameter access by providing a simplified interface for function switching. External control signals interact with the intermediary to select appropriate data areas, eliminating the need for direct complex parameter manipulation while maintaining function adaptability.
3Adaptability or versatility
If multiple data areas are created in the IC chip to fulfill multiple functions, then versatility is improved, but the difficulty of accessing and switching between functions increases
Solution Approach 1:
The patent implements a universal control mechanism that can access and switch between multiple data areas through a single interface. This universal approach allows the same control mechanism to manage all functions regardless of their specific data area locations, simplifying the operation of multi-function switching while maintaining the versatility provided by multiple data areas.
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 cost-effective and convenient switching of functions without altering the IC chip's data, reducing modification costs and enhancing user convenience by dynamically selecting functions based on location using GPS signals.
Implementation Method 1
GPS signals reception unit that receives GPS signals originating from GPS satellites
Implementation Method 2
engages in wireless data exchange with another device through noncontact communication
Data Source
AI summary
An information processing terminal, including a request reception unit that receives a function request. A GPS signals reception unit that receives a GPS signal, and a current position measuring unit that determines the latitude and longitude of the current position of the information processing terminal based upon the GPS signal. A defining information recording unit in which defining information related to the functions that can be engaged at the information processing terminal is recorded. A function decision-making unit that makes a decision as to whether or not a function can be engaged based upon the defining information and the latitude and longitude of the current position having been measured by the current position measuring unit and a data read/write unit that reads/writes data from/into a data area among a plurality of data areas based upon the results of the decision made by the function decision-making unit.