Optical Touch Panel With Segmented Control Areas

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Solution Overview

Problem

Conventional optical touch panel systems with a single touch control area are limited in the patterns of object tracks and corresponding gesture functions they can recognize, making them inflexible and unable to meet various user requirements.

Innovation Solution

An optical touch panel system with multiple touch control areas, utilizing at least one image sensor to capture continuous images of an object and a processor to determine which active touch control area a track is in, allowing for the execution of pre-defined gesture functions associated with that area, thereby increasing the number of possible gesture functions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single touch control area is used, then the device structure is simple, but the gesture functions are limited

Engineering Contradiction:
Improvegesture functionsVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The touch control surface is divided into multiple touch control areas (first touch control area, second touch control area, etc.), each capable of independently recognizing track patterns and executing corresponding gesture functions. This segmentation allows the system to provide diverse gesture functions while maintaining a relatively simple overall structure, as each area can be independently configured and processed.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If multiple touch control areas are added, then the gesture functions are increased, but the system complexity increases

Engineering Contradiction:
Improvegesture functionsVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The processor is designed to handle multiple touch control areas using a unified processing approach. The same track recognition algorithms and gesture function execution mechanisms are applied across all touch control areas, allowing the system to manage multiple areas without proportionally increasing complexity. Each area can define different gesture functions, but they all follow the same processing framework.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If the same track pattern is used in different areas, then the system is easy to operate, but the functionality is limited

Engineering Contradiction:
ImprovefunctionalityVSAvoidoperation consistency
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

Different gesture functions are assigned to different touch control areas based on their local requirements. For example, a horizontal sliding track in the first touch control area may trigger one gesture function, while the same horizontal sliding track in the second touch control area triggers a different gesture function. This local differentiation allows the system to provide rich functionality while maintaining consistent operation methods across areas.

Inventive Principle:
Principle #3Local quality

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 diverse gesture functions by defining different functions for different touch control areas, allowing the same track pattern to be interpreted as different functions based on the active area, enhancing flexibility and usability.

Implementation Method 1

at least one image sensor for capturing a plurality of continuous pictures including images of the object

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS9489077B2Optical touch panel system, optical sensing module, and operation method thereof
Publication Date: 2016.11.08 PIXART IMAGING INC
  • US9489077B2 patent drawing
  • US9489077B2 patent drawing
  • US9489077B2 patent drawing

AI summary

The present invention discloses an optical touch panel system, an optical sensing module, and an operation method using for the same system. The system recognizes a track of an object moving on or above a touch control surface to determine a corresponding gesture function; it includes a touch control surface, at least one image sensor, and a processor. The touch control surface includes at least two touch control areas. The image sensor captures a plurality of continuous pictures including the images of the objects. The processer determines which touch control area the object is moving on or above according to a starting position or a path of the track, and executes a gesture function corresponding to the track and the touch control area.