The use of ultrasonic vibrations is a new technique for delivering tactile sensations to the user.
A system that allows users to experience multi-point haptic feedback above an interactive surface without having to touch or hold any device will be unveiled this week [Friday 11 October] at one of the world’s most important conferences for innovations in human-computer interfaces.
Multi-touch surfaces offer easy interaction in public spaces, with people being able to walk-up and use them. However, people cannot feel what they have touched. A team from the University of Bristol’s Interaction and Graphics (BIG) research group have developed a solution that not only allows people to feel what is on the screen, but also receive invisible information before they touch it.
The research paper, to be presented at the ACM Symposium on User Interface Software and Technology (UIST) 2013 by Tom Carter from the Department of Computer Science, will unveil UltraHaptics, a system designed to provide multipoint, mid-air haptic feedback above a touch surface.
UltraHaptics uses the principle of acoustic radiation force where a phased array of ultrasonic transducers is used to exert forces on a target in mid-air. Haptic sensations are projected through a screen and directly onto the user’s hands.
The use of ultrasonic vibrations is a new technique for delivering tactile sensations to the user. A series of ultrasonic transducers emit very high frequency sound waves. When all of the sound waves meet at the same location at the same time, they create sensations on a human’s skin.
By carrying out technical evaluations, the team have shown that the system is capable of creating individual points of feedback that are far beyond the perception threshold of the human hand. The researchers have also established the necessary properties of a display surface that is transparent to 40kHz ultrasound.
The results from two user studies have demonstrated that feedback points with different tactile properties can be distinguished at smaller separations. The researchers also found that users are able to identify different tactile properties with training.
Finally, the research team explored three new areas of interaction possibilities that UltraHaptics can provide: mid-air gestures, tactile information layers and visually restricted displays, and created an application for each.
Tom Carter, PhD student in the Department of Computer Science’s BIG research group, said: “Current systems with integrated interactive surfaces allow users to walk-up and use them with bare hands. Our goal was to integrate haptic feedback into these systems without sacrificing their simplicity and accessibility.
The Latest on: UltraHaptics
- Nature and Technologyon November 1, 2019 at 1:53 pm
Ultrahaptics technology uses ultrasound to create three dimensional shapes that can be felt by hand. The Aquarium of the Pacific uses this technology in one of their exhibits called Pacific Vision.
- Losses rise to £10m at Bristol University spin-out Ultrahapticson September 22, 2019 at 12:00 pm
Losses have risen at Bristol technology hardware business Ultrahaptics to £10.2m in 2018, up from £2.8m the previous year. The start-up is valued at more than £150m and produces pads which create the ...
- Rebrand for Ultrahaptics and Leap Motionon September 19, 2019 at 3:47 am
Ultrahaptics and Leap Motion are to rebrand under a single new company name. The new corporate brand, Ultraleap, was said to represent a significant step forward for the combined group, which came ...
- Woodford sells stake in Ultrahapticson August 19, 2019 at 10:51 pm
Neil Woodford, who controversially locked investors into his Equity Income fund, has sold his 20% stake in ultrasound haptic touch specialist Ultrahaptics. Woodford invested in Ultrahaptics’ £10.1 ...
- Woodford sells stake in Bristol tech firm Ultrahaptics for a ‘considerable profit’on August 19, 2019 at 2:15 am
Neil Woodford has sold his stake in hardware firm Ultrahaptics to private equity firm Mayfair Equity Partners. The troubled fund manager has faced criticism for the level of his illiquid stakes in ...
- Together Ultrahaptics and Leap Motion Could Transform How We Interact with Deviceson June 18, 2019 at 2:15 am
Leap Motion's acquisition by Ultrahaptics could be seen as the curtain call of a novel startup. Or it could be the first step toward a new innovation in machine interactivity. Separately, Leap ...
- Leap Motion sold for fire-sale price of $30M to Ultrahapticson May 30, 2019 at 7:39 pm
Once-high-profile 3-D motion-control technology startup Leap Motion Inc. is no longer independently owned after being acquired in an apparent fire sale to Ultrahaptics Ltd. for $30 million. Founded in ...
- UK’s Ultrahaptics Buys Leap Motion at Bargain Basement Priceon May 30, 2019 at 9:52 am
Bristol-based Ultrahaptics has bought US rival Leap Motion, which creates gesture tracking software and sensors, for a reported $30 million – a small fraction of the $306 million Leap Motion was ...
- Leap Motion, the gesture startup reportedly almost acquired by Apple, sells to UK haptics companyon May 30, 2019 at 7:46 am
Leap Motion, which made hand-tracking systems for virtual and augmented reality headsets, is reportedly being acquired by haptics company UltraHaptics. The Wall Street Journal reported the news ...
- Leap Motion, Once a Virtual-Reality High Flier, Sells Itself to U.K. Rivalon May 30, 2019 at 3:12 am
Leap Motion Inc., a virtual-reality startup that helped pioneer gesture tracking technology, has agreed to sell itself to British rival UltraHaptics Ltd. for approximately $30 million, according to ...
via Google News and Bing News