20240021072. Calibration Techniques in Haptic Systems simplified abstract (Ultrahaptics IP Ltd)
Contents
Calibration Techniques in Haptic Systems
Organization Name
Inventor(s)
Thomas Andrew Carter of Bristol (GB)
Benjamin John Oliver Long of Bristol (GB)
Calibration Techniques in Haptic Systems - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240021072 titled 'Calibration Techniques in Haptic Systems
Simplified Explanation
The patent application describes a system that improves calibration techniques for haptic feedback. It involves defining an acoustic field in a space using control points, each assigned with an amplitude value representing the desired amplitude of the acoustic field at that point. However, controlling the acoustic field at specific points can result in erroneous local maxima at other related positions, leading to unwanted secondary effects and ghost phenomena in mid-air haptic feedback interactions.
- The system defines an acoustic field using control points in a given space.
- Each control point is assigned an amplitude value representing the desired amplitude of the acoustic field at that point.
- Controlling the acoustic field at specific points can create erroneous local maxima at other related positions.
- This can lead to unwanted secondary effects and ghost phenomena in mid-air haptic feedback interactions.
- The arrangement of transducer elements can be adjusted to limit and control unwanted effects on the acoustic field.
Potential Applications:
- Virtual reality and augmented reality systems
- Gaming and entertainment industry
- Medical simulations and training
- Industrial design and prototyping
- Remote control and teleoperation systems
Problems Solved:
- Minimizing erroneous local maxima in the acoustic field
- Reducing unwanted secondary effects and ghost phenomena in haptic feedback interactions
- Improving the accuracy and precision of haptic feedback systems
Benefits:
- Enhanced user experience in virtual environments
- Improved realism and immersion in gaming and entertainment
- More accurate and reliable medical simulations and training
- Increased efficiency and effectiveness in industrial design and prototyping
- Enhanced control and precision in remote control and teleoperation systems
Original Abstract Submitted
a system providing various improved calibration techniques for haptic feedback is described. an acoustic field is defined by one or more control points in a space within which the acoustic field may exist. each control point is assigned an amplitude value equating to a desired amplitude of the acoustic field at the control point. because complete control of space is not possible, controlling the acoustic field at given points yields erroneous local maxima in the acoustic field levels at other related positions. in relation to mid-air haptic feedback, these can interfere in interactions with the space by creating secondary effects and ghost phenomena that can be felt outside the interaction area. the level and nature of the secondary maxima in the acoustic field is determined by how the space is controlled. by arranging the transducer elements in different ways, unwanted effects on the acoustic field can be limited and controlled.
