Untitled Document
Not a member yet? Register for full benefits!

Virtual Dictionary

Ultrasonic Trackers

Ultrasonic tracking devices are one of five discrete kinds of tracker used for 3D positioning in VR hardware. They consist of three high frequency sound wave emitters arranged in a set formation upon the user. Three transceivers, set perpendicular to each other, surround the user.

Both the transceivers and the emitters emit the same ultrasonic pulse, then hardware attached to the transceivers compares the incoming ultrasonic signal to the local one, calculating the offset. Since the speed of sound through air is known, distance can thus be calculated. By pulsing the signals, multiple ultrasonic devices can be triangulated on the same person, faster than humanly noticeable.

The problem with ultrasonic, is the emitters must each always have a direct line of sight to the transceivers. Put a body part in front of one, and the sound signal is disrupted enough to be useless.

Below, we offer a selection of links from our resource databases which may match this term.

Related Dictionary Entries for Ultrasonic Trackers:



Resources in our database matching the Term Ultrasonic Trackers:

Results by page



Industry News containing the Term Ultrasonic Trackers:

Results by page

Anyone who's driven in a crowded downtown knows that parking can mean almost endless circling in the hunt for a space close to your destination. Now engineers at Rutgers University in New Jersey have combined simple ultrasonic sensors, GPS...

"Peer-to-peer" (P2P) is synonymous with piracy and bandwidth hogging on the Internet. But now, Internet service providers and content companies are taking advantage of technology designed to speed the delivery of content through P2P netwo...

Researchers at the University of Southern California's Viterbi School of Engineering have successfully demonstrated a novel ?High-resolution Ultrasonic Transmission Tomography? (HUTT) system fthat offers 3D images of soft tissue that are s...

An ultrasonic microscope emits a high frequency sound at an object, and the reflected sound captured by its lens is converted into two dimensional image of the object under scrutiny.

Professor Naohiro Hozumi of Toyohashi Univ...

Researchers at the University of California, Berkeley's School of Information released a report late Monday (June 1) showing that the most popular Web sites in the United States all share data with their corporate affiliates and allow thir...