Navigation Route Corridor Input via Touch Pressure
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Solution Overview
Problem
Current navigation devices with touch screens are cumbersome and prone to errors when entering destinations and route options, requiring multiple input steps and lacking precision in specifying the route course.
Innovation Solution
A method where a user specifies the destination and route course by guiding an input device along a touchscreen input line, defining a reference line and route corridor, allowing the navigation device to calculate a route that follows this corridor, with the corridor's width adjustable based on touch pressure, enabling precise and efficient route entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a user enters a destination using a keyboard or voice recording module, then the destination can be input, but the process is prone to errors and time-consuming
Solution Approach 1:
The patent replaces the mechanical keyboard input system with a graphical touch screen interface. Users visually select destination elements by touching the screen rather than typing, which eliminates typing errors and significantly reduces input time while maintaining accuracy.
Solution Approach 2:
The patent uses visual representation of map data and address components on the touch screen as a copy of the actual geographic information. Users interact with this visual copy by touching displayed elements, which is faster and more accurate than typing or voice input.
2Ease of operation
If a user enters address components character by character on a touch screen, then the destination can be specified, but the input process becomes complex and error-prone
Solution Approach 1:
The system pre-loads and displays all available address components (street names, place names, house numbers) from the map data on the touch screen. Users can directly select from these pre-displayed options without needing to type or recall characters, greatly simplifying the input process.
Solution Approach 2:
The address input process is segmented into distinct selectable components (place name, street name, house number) that are displayed separately on the touch screen. Users can independently select each component by touching the corresponding displayed element, making the complex address input process manageable and error-free.
3Measurement precision
If traditional route entry methods are used, then the destination can be specified, but the route course cannot be precisely specified and multiple input steps are required
Solution Approach 1:
The patent combines destination specification and route course specification into a single unified input operation. By drawing a route line on the map display, users simultaneously define both the destination (end point of the line) and the desired route course (path of the line), eliminating the need for separate input steps and enabling precise route specification.
Data Source
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AI summary
The method involves determining a position of navigation device (101). A map detail (100) is displayed on touch screen. An input starting point (102) along input line (103) to input end (104) is input through touch screen. One of input lines associated with reference line (107) is defined. A route corridor (108) extending along reference line is defined. The input end associated with target position (106) is determined and the route is calculated, so that route from position of navigation device leads to target position along reference line within route corridor. An independent claim is included for navigation device.