Navigation Device Partial Street Name Input
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Solution Overview
Problem
Conventional navigation devices require complete street names for identification, making it difficult for users unfamiliar with the area to designate the correct street, leading to inconvenience.
Innovation Solution
A navigation device that receives partial keywords for street names and identifies connecting streets and intersection points, allowing for route guidance based on incomplete street name inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complete street names are required for identification, then identification accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
The patent segments the street name input process into multiple parts. Instead of requiring users to input complete street names, the system divides the input into keywords that can be entered separately. The identification unit then combines these keywords to identify the target street, reducing input burden while maintaining identification accuracy.
Solution Approach 2:
The patent applies partial action by allowing users to input only partial information (keywords) rather than complete street names. The system's identification unit processes these partial inputs by matching them against stored street name data, enabling accurate identification without requiring full name input from the user.
2Reliability
If complete street names are required, then reliability of street identification is improved, but adaptability to user knowledge level deteriorates
Solution Approach 1:
By segmenting the identification process into keyword input and systematic matching, the system adapts to users with varying levels of local knowledge. Users can input whatever keywords they remember, and the system handles the complex matching process, making the navigation reliable regardless of user familiarity with the area.
Solution Approach 2:
The identification unit acts as an intermediary between the user's partial keyword input and the complete street name database. It performs the complex matching and verification processes, bridging the gap between limited user input and reliable street identification, thereby adapting to users unfamiliar with the area while maintaining reliability.
3Ease of operation
If partial keywords are accepted for street identification, then ease of operation is improved, but measurement precision of street identification may deteriorate
Solution Approach 1:
The system incorporates feedback mechanisms where the identification unit continuously refines street identification based on keyword matches. When multiple potential streets are found, the system can provide feedback to the user for confirmation or allow automatic selection based on additional context, maintaining precision while accepting simple keyword input.
Solution Approach 2:
The patent replaces the mechanical requirement for complete precise input with an intelligent information processing system. Instead of relying on exact complete name input, the system uses computational matching algorithms to interpret partial keywords and identify the correct street, maintaining precision through information processing rather than input strictness.
Data Source
AI summary
Provided is a technology of a navigation device which is capable of identifying an intersection or the like based on designation of an incomplete name of a street in which an input of a first keyword and an input of a second keyword are received, and a connection point of a first street having a street name which includes at least in part the first keyword and a second street having a street name which includes at least in part the second keyword is identified, to thereby save the user, who is not always familiar with the geography of a search target area, from the inconvenience of inputting a complete name of the first street, based on which the second street is retrieved and selected and an intersection point of the first street and the second street is identified.