Portable Navigation Device Access Control
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Solution Overview
Problem
Travelers need to carry separate devices for navigation and language translation/dictionary functions, lacking a single portable device that integrates both functionalities effectively.
Innovation Solution
A portable navigation device that includes a GPS receiver, memory for non-navigation applications, and a processor module to enable and disable language translation/dictionary functions based on an access code, allowing integration of navigation and language services in one device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single portable device integrates both navigation and language translation/dictionary functions, then device versatility is improved, but device complexity increases
Solution Approach 1:
The patent combines navigation and language translation/dictionary functions into a single portable device. The processor module executes both navigation applications and non-navigation applications (language translation, dictionary) stored in memory, merging previously separate devices into one integrated unit. This resolves the contradiction by achieving versatility through functional integration while managing complexity through unified hardware architecture.
Solution Approach 2:
The portable device is designed with universal functionality to perform multiple tasks: GPS-based navigation, language translation, and dictionary lookup. The processor module can dynamically switch between different applications based on user needs, making the device adaptable to various travel scenarios without requiring multiple specialized devices.
2Reliability
If non-navigation applications are disabled after a trial period without an access code, then access control reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent introduces an access code as an intermediary mechanism to control access to non-navigation applications. After the trial period expires, the system requires users to enter a valid access code to re-enable these functions. This mediator balances reliability by ensuring paid features are properly authorized while maintaining ease of operation through a simple code-entry interface rather than complex authentication procedures.
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 a single device to provide both navigation and language translation/dictionary functions, enhancing user convenience by eliminating the need for multiple devices and ensuring access to paid features through a valid access code.
Implementation Method 1
a receiver configured to receive signals from GPS satellites
Data Source
AI summary
A portable navigation device is provided that includes a receiver configured to receive signals from GPS satellites. The device includes memory that stores a non-navigation application and non-navigation information related to the non-navigation application. A user interface is configured to enable an operator to enter non-navigation instructions related to the non-navigation application. The a processor module is provided that calculates a position of the device based on the signals from the GPS satellites. The processor module implements the non-navigation application and performs non-navigation operations defined by the non-navigation application based on the non-navigation instructions entered by the user. The processor module disables the non-navigation application after a predetermined trial period of time following a start time unless and until an application access code is entered. Optionally, a cartridge they may be included that is configured to receive an application access cartridge containing the application access code. The code indicates that access to the non-navigation application has been purchased by the user of the device. The processor module enables the non-navigation application when the application access cartridge is entered into the cartridge bay with a valid code. The processor may not disable the non-navigation application, such as when an application access code is incurred before and in of the predetermined trial period of time.