Ultrasonic Gesture Control Integrated Into Display Panels
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Solution Overview
Problem
Existing non-touch control systems for gesture tracking on display screens are costly and aesthetically compromising due to the need for cameras or external devices.
Innovation Solution
A non-touch control apparatus utilizing a main control integrated circuit, ultrasonic generating circuit, and transducer devices to send and receive acoustic wave signals, allowing for gesture tracking without external devices, thereby reducing costs and improving aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If a camera or infrared technology is added to achieve gesture tracking, then gesture identification capability is improved, but device cost increases and aesthetics are compromised
Solution Approach 1:
The patent combines the ultrasonic transmitter and receiver into the same display device, integrating gesture tracking functionality within the existing device structure. This eliminates the need for separate external cameras or infrared devices, reducing overall system complexity and cost while maintaining aesthetic appearance.
Solution Approach 2:
The patent replaces optical detection systems (cameras, infrared) with an acoustic field-based ultrasonic system. By using ultrasonic waves for gesture detection instead of optical mechanisms, the system achieves gesture tracking capability with simpler, more cost-effective components that do not require additional openings or external devices.
2Adaptability or versatility
If external devices are mounted on the display screen for gesture tracking, then control functionality is improved, but the display screen aesthetics are degraded
Solution Approach 1:
The display device is designed to serve multiple functions: it acts as both a display screen and an ultrasonic transmitter/receiver for gesture control. The transducer integrated into the display structure enables the display to perform dual roles, eliminating the need for separate external control devices and maintaining aesthetic integrity.
Solution Approach 2:
The display device performs gesture tracking itself using its own integrated transducer, without requiring external assistance. The display structure serves its primary function while simultaneously providing gesture detection capability, making the system self-sufficient and eliminating aesthetic compromises from external attachments.
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 cost-effective and aesthetically pleasing non-touch control by tracking gestures using ultrasonic signals within the device, eliminating the need for external cameras or infrared technology.
Implementation Method 1
controlling the second transducer device to send out a first acoustic wave signal
Implementation Method 2
the first transducer device is configured to be capable of receiving a second acoustic wave signal including the first acoustic wave signal, converting the second acoustic wave signal into a first electric signal
Data Source
AI summary
An embodiment of the present disclosure provides a non-touch control apparatus, including: a main control integrated circuit, an ultrasonic generating circuit, a first transducer device and a second transducer device, wherein the main control integrated circuit is configured to, in response to a condition that the device is in a non-touch control mode, switch on the ultrasonic generating circuit so as to control the second transducer device to send out a first acoustic wave signal, the first transducer device is configured to be capable of receiving a second acoustic wave signal including the first acoustic wave signal, converting the second acoustic wave signal into a first electric signal, and outputting the first electric signal, wherein, the main control integrated circuit is configured to be capable of receiving a second electric signal derived from the first electric signal.