Surface Audio Input Using Coil-Induced Touch Detection
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Solution Overview
Problem
Existing technologies do not effectively utilize surface audio devices for receiving user input and providing audio or haptic feedback, limiting user experience and interaction.
Innovation Solution
A surface audio device apparatus comprising detection circuitry coupled to a first coil for detecting user input based on a triggering signal induced by surface displacement, and feedback circuitry coupled to a second coil for generating a magnetic field to provide audio or haptic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If surface audio devices are used only for audio output, then audio feedback function is provided, but user input detection capability is not utilized
Solution Approach 1:
The surface audio device is designed to perform multiple functions: it serves as both an audio output device and a user input detection device. The same surface structure and coil system are utilized for both generating audio vibrations and detecting user inputs through induced signals, eliminating the need for separate detection hardware and enabling versatile interaction capabilities.
Solution Approach 2:
The patent combines the audio generation function and input detection function into a single integrated system. The coil structure serves dual purposes: generating magnetic fields for audio output and detecting changes caused by user inputs. This merging of functions reduces system complexity while enhancing adaptability.
2Measurement precision
If separate input detection hardware is added to surface audio devices, then user input detection capability is improved, but device complexity increases
Solution Approach 1:
The surface audio device's existing coil structure is made multi-functional by enabling it to both generate audio signals and detect user inputs. The same magnetic field generation capability is used for both purposes, eliminating the need for separate detection hardware while maintaining detection precision.
Solution Approach 2:
The surface audio device uses its own magnetic field and structural components to detect user inputs without requiring external or separate detection systems. The coil structure that generates audio also serves to detect inputs through induced signals when the surface is displaced, making the system self-sufficient.
3Adaptability or versatility
If surface audio devices provide only audio feedback, then audio output function is maintained, but haptic feedback capability is not provided
Solution Approach 1:
The surface audio device is designed to provide both audio feedback and haptic feedback through the same operational mechanism. By detecting user inputs and responding with controlled surface vibrations, the system delivers tactile feedback without requiring separate haptic actuators, thus providing versatile feedback types while managing energy consumption efficiently.
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 improved user input detection and feedback provision, enhancing user experience by allowing surface audio devices to function as both input devices and feedback providers.
Implementation Method 1
a triggering signal comprising voltage or current induced at the first coil by displacement of the surface by a user
Implementation Method 2
the second coil is configured to cause or alter movement of the surface based on a magnetic field configured to be generated by the second coil upon activation of the feedback signal
Data Source
AI summary
Various example embodiments relate to providing audio or haptic feedback to a user. An apparatus may comprise: detection circuitry coupled to a first coil, wherein the detection circuitry is configured to detect a user input on a surface based on a triggering signal comprising voltage or current induced at the first coil by displacement of the surface by a user. The apparatus may further comprise feedback circuitry coupled to a second coil, wherein the feedback circuitry is configured to activate a feedback signal in response to detection of the user input by the detection circuitry, and wherein the second coil is configured to cause or alter movement of the surface based on a magnetic field configured to be generated by the second coil upon activation of the feedback signal. Apparatuses, methods, and computer programs are disclosed.