Absolute Coordinate Mapping for Vehicle Touchpad Input
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Solution Overview
Problem
Conventional touchpads in vehicles require users to drag or swipe their fingers to select interface objects on a display screen, leading to inefficiency and frustration, especially for drivers, as they do not provide direct absolute coordinate mapping, causing delays in input registration and incorrect area correspondence.
Innovation Solution
A system and method for absolute coordinate mapping using zone mapping, where a touchpad determines touch inputs and maps them directly to corresponding positions on a display screen, allowing users to select interface objects without needing to drag or swipe, by utilizing a coordinate touch recognition module and a user interface management module to create display input zones corresponding to user interface objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If relative coordinate mapping is used on touchpad, then the touchpad can be remotely located within the vehicle, but the input registration is delayed and does not correspond to the display screen position
Solution Approach 1:
The patent creates a virtual copy of the display screen interface on the touchpad surface through zone mapping. Each zone on the touchpad corresponds to a specific user interface object or area on the display screen, allowing the touchpad to replicate the spatial layout of the display. This copying approach enables direct position correspondence between touch input and display output, eliminating the delay inherent in relative coordinate systems where the cursor must be manually moved across the screen.
2Productivity
If dragging or swiping is required to select interface objects, then the touchpad can register inputs, but user effort increases and frustration occurs
Solution Approach 1:
The touchpad surface is segmented into multiple discrete zones, each corresponding to a specific user interface object or functional area on the display screen. This segmentation allows users to directly tap or touch specific zones to select corresponding interface objects, eliminating the need for continuous dragging or swiping motions. The segmentation principle transforms the continuous motion requirement into discrete point selections, significantly reducing user effort and increasing input efficiency.
3Adaptability or versatility
If the touchpad is remotely located from the display screen, then the layout can be flexible, but the correspondence between touch input area and display area is incorrect
Solution Approach 1:
The patent applies local quality by assigning different mapping properties to different zones on the touchpad surface. Each zone has its own specific correspondence relationship with the display screen, allowing the touchpad to maintain accurate coordinate mapping despite being remotely located from the display. This localized mapping approach enables the system to accommodate flexible physical layouts while preserving precise input-output correspondence through zone-specific transformation matrices or mapping algorithms.
Data Source
AI summary
A method and system for providing absolute coordinate mapping using zone mapping input in a vehicle includes determining a touch input received on a touchpad located in the vehicle, presenting an absolute mapped position of the touch input on a display screen located in the vehicle, presenting one or more user interface objects on the display screen, and providing a plurality of display input zones corresponding to one or more user interface objects presented on the display screen. The method and system further include determining a user input to one of the one or more user interface objects presented on the display screen based on the absolute mapped position of the touch input on at least one of the one or more user interface objects presented on the display screen, and the plurality of display input zones on the display screen.