Non-contact Selection Device Optical Recognition
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Solution Overview
Problem
Conventional function selecting methods for digital devices, such as key pad manipulation and touch screens, are cumbersome, costly, and limit device design and size due to the need for physical buttons and display units, making it difficult for users to efficiently select functions.
Innovation Solution
A non-contact function selecting method using a camera with a light source and image signal processor to detect changes in a reflected light area, allowing users to select functions by moving a pointer on a display without physical input, reducing the need for key pads and enhancing device design and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional key pad manipulation is used for function selection, then function control is achieved, but device complexity and manufacturing cost increase due to additional physical buttons
Solution Approach 1:
The patent replaces the mechanical key pad system with an optical recognition system. The camera captures images of the user's hand gestures, and image processing algorithms recognize the selected function based on the hand position and movement, eliminating the need for physical buttons while maintaining function selection capability
Solution Approach 2:
The patent introduces an intermediary optical system (camera and image processing) between the user and the function selection interface. Instead of direct mechanical contact with buttons, the user's hand gestures are captured and translated into function selection commands through image analysis
2Ease of operation
If touch screen method is used for function selection, then contactless operation is achieved, but manufacturing cost increases due to required display unit
Solution Approach 1:
The patent replaces the touch screen display system with an optical recognition system using a camera. Instead of requiring a specialized touch-sensitive display, the system uses standard camera hardware to capture hand gestures and process them into function selection commands, reducing manufacturing costs
3Ease of operation
If physical key buttons are equipped for function selection, then function control is achieved, but device size is restricted due to occupied space
Solution Approach 1:
The patent extracts and removes the physical key pad components from the device structure. By eliminating the need for physical buttons, the occupied space is freed up, allowing for more compact device design or alternative space utilization while maintaining function selection capability through optical recognition
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 users to quickly and easily select functions remotely, reducing manufacturing costs and increasing design flexibility by eliminating the need for physical input methods, while maintaining efficient function control and display management.
Implementation Method 1
detecting a location of a detected area formed by light, reflected by pointing-means and inputted, of the light emitted from the video data
Data Source
AI summary
A non-contract selecting device is disclosed. The non-contract selecting device include a light source, emitting light to an outside; a camera unit, generating and outputting a video signal corresponding to an external video; a video data generating unit, generating video data corresponding to the video signal; and an identity unit, detecting a location of a detected area formed by light, reflected by pointing-means and inputted, of the light emitted from the video data in units of each frame, recognizing a moving locus of the detected area by comparing at least two continuous frames and generating and outputting corresponding change information. With the present invention, the function-selecting can be more quickly and easily and increase making the most use of elements.