Force-sensing touchpad to reach ultrabooks next year

Projects on show at the UIST conference make creative use of a new, pressure-sensitive touchpad from Synaptics

Researchers at the User Interface Software Technology conference this week demonstrated unique projects that took advantage of a new, pressure-sensitive "forcepad" that could debut in ultrabooks as soon as next year.

Synaptics gave the forcepad to more than two dozen academic research groups, which were challenged to come up with novel uses for the device. It's like a touchpad, but in addition to the usual swiping gestures it can sense how much pressure is being applied, adding another dimension for control.

One team, from RWTH Aachen University, created Forceposé, an application that lets Mac users "push" through a stack of overlapping windows, revealing the ones underneath. How far into the stack users go depends on how much pressure they apply to the forcepad.

"We added another dimension into browsing overlapping windows," said Christian Corsten, a researcher at RWTH Aachen University. "Normally when you have a stack of windows you need to move them away to grab a specific window, but [with what we did] you just push through the stack of windows with your finger."

To see the project in action, watch a video on YouTube.

Corsten said the project is different from the Exposé tool in Mac OS X (now called Mission Control) because in that mode, "everything gets smaller and moves to a different position and you notice that you're entering the Exposé mode."

Corsten said the team used the accessibility framework and Apple script to hack into the OS to get access to the different windows.

Another project took a novel approach to puppetry, with a marionette controlled not by a puppeteer but by a forcepad. The marionette hung on strings attached to a set of wheels and "servos," or little motors.

To see the puppet project, watch a video on YouTube.

As a researcher pressed his fingers on the forcepad, the puppet lifted its leg and waved its arms. Sliding his fingers across the pad made the puppet move left and right. One researcher said the project wouldn't have been possible with a traditional trackpad or with a touchscreen device like an iPad or iPhone.

"They don't give pressure information, so when you touch the screen it only knows where you're touching, but not how hard," said Paymahn Moghadasian, a student who worked on the project from the University of Manitoba.

The Synaptics forcepad can track five fingers at a 15-gram resolution, up to a kilogram, according to Anthony Searle, a systems design engineer. He said the forcepad will ship in ultrabooks next year, though Synaptics won't say yet which hardware partners it is working with.

The company showed the touchpad integrated into a prototype Lenovo ultrabook, but for most of the demonstrations at UIST, the touchpad connected to the laptops via USB.

The demonstration projects themselves, such as the puppet, are at the research stage and there are no immediate plans to commercialize them.

Nick Barber covers general technology news in both text and video for IDG News Service. E-mail him at Nick_Barber@idg.com and follow him on Twitter at @nickjb.

Join the Good Gear Guide newsletter!

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Nick Barber

IDG News Service

Most Popular Reviews

Follow Us

Best Deals on GoodGearGuide

Shopping.com

Latest News Articles

Resources

GGG Evaluation Team

Kathy Cassidy

STYLISTIC Q702

First impression on unpacking the Q702 test unit was the solid feel and clean, minimalist styling.

Anthony Grifoni

STYLISTIC Q572

For work use, Microsoft Word and Excel programs pre-installed on the device are adequate for preparing short documents.

Steph Mundell

LIFEBOOK UH574

The Fujitsu LifeBook UH574 allowed for great mobility without being obnoxiously heavy or clunky. Its twelve hours of battery life did not disappoint.

Andrew Mitsi

STYLISTIC Q702

The screen was particularly good. It is bright and visible from most angles, however heat is an issue, particularly around the Windows button on the front, and on the back where the battery housing is located.

Simon Harriott

STYLISTIC Q702

My first impression after unboxing the Q702 is that it is a nice looking unit. Styling is somewhat minimalist but very effective. The tablet part, once detached, has a nice weight, and no buttons or switches are located in awkward or intrusive positions.

Latest Jobs

Shopping.com

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?