Multi-touch Detection Using Triangulation for Movable Areas
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Solution Overview
Problem
Existing multi-touch detection systems are limited by the size, weight, and mobility of their detection areas, which restrict their application and flexibility in recognizing multiple points within a defined space.
Innovation Solution
A multi-touch detection system utilizing a mobile device and at least two communication devices that employ triangulation to determine the coordinates of objects within a detection area by measuring distances between the devices and objects, allowing for the generation of a movable and adaptable multi-touch detection area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a traditional multi-touch detection system uses a fixed detection area, then the detection stability is improved, but the mobility and adaptability deteriorate
Solution Approach 1:
The patent applies the Dynamics principle by transitioning from a fixed detection area to a movable detection area that can be repositioned along with the mobile device. The detection area is no longer static but dynamically adjusts its position based on the mobile device's location, resolving the contradiction between stability and mobility by providing stability relative to the mobile device rather than to a fixed location.
Solution Approach 2:
The patent uses the mobile device as an intermediary between the fixed infrastructure and the detection area. The mobile device carries the detection functionality and moves with the user, acting as a mediator that brings the detection area to different locations without requiring fixed installation at each location, thus enabling both mobility and functional stability.
2Adaptability or versatility
If the detection area is made movable using mobile devices, then the adaptability and mobility are improved, but the system complexity increases
Solution Approach 1:
The patent applies the Universality principle by utilizing mobile devices that already possess multiple functions (communication, computing, sensing) to perform the additional function of multi-touch detection. Instead of introducing dedicated complex detection infrastructure, the system leverages the existing capabilities of mobile devices, thereby reducing overall system complexity while maintaining adaptability and mobility.
Solution Approach 2:
The mobile device serves itself by using its own sensors, processors, and communication capabilities to perform detection, calculation, and coordination functions. The device autonomously determines coordinates, communicates with other devices, and manages the detection area without requiring external complex control systems, thus reducing system complexity while enabling movable detection.
3Measurement precision
If triangulation is used to determine coordinates, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical coordinate determination systems with computational triangulation methods. Instead of using physical measurement instruments or complex mechanical positioning systems, the solution uses mathematical calculations based on distance measurements from multiple mobile devices, substituting mechanical complexity with computational simplicity while achieving high precision.
Solution Approach 2:
The patent introduces distance measurements as an intermediary quantity to facilitate coordinate determination. Rather than directly measuring coordinates, the system first measures distances between mobile devices and detectable objects, then uses these distance intermediaries in triangulation calculations to derive precise coordinates, simplifying the overall measurement process while maintaining accuracy.
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 the recognition of multiple objects simultaneously within a flexible and movable detection area, enhancing human-computer interaction and control capabilities, such as zooming, rotating, or manipulating displayed images, by accurately determining the coordinates of detectable objects.
Implementation Method 1
The mobile device may use triangulation to determine the coordinates of one or more objects disposed in the multi-touch detection area
Data Source
AI summary
A multi-touch system is provided. The multi-touch system includes a multi-touch detection area generated by a mobile device and a first communication device, the mobile device and first or second communication device being movable relative to each other. The mobile device is operable to determine a first set of coordinates for a first detectable object within the multi-touch detection area as a function of: a distance between the mobile device and the first communication device, a distance between the mobile device and first detectable object, and a distance between the first communication device and first detectable object.