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Inside Elo's new APR touchscreen technology

Consisting solely of a glass overlay mounted in front of the display, together with a small electronic controller board, Elo's APR technology provides a new set of benefits that have only been partially achieved before by other touch technologies.

June 12, 2006

Acoustic Pulse Recognition (APR) from Elo TouchSystems, a global leader in touch technology, is a completely new and unique way of sensing touches on a display. Elo TouchSystems is a unit of Tyco Electronics, the world's largest manufacturer of electrical and electronic components.

Consisting solely of a glass overlay mounted in front of the display, together with a small electronic controller board, Elo's APR technology provides a new set of benefits that have only been partially achieved before by other touch technologies.

APR combines the ultimate in optical qualities, durability, and stability of surface acoustic wave (SAW) and infrared technologies with the excellent dragging properties of capacitive, along with the stylus, glove, and fingernail activation and low-cost advantages of resistive technology. In addition, APR is resistant to water and other contaminants on the screen, can be scaled from PDA to 42-inch displays, and provides palm rejection during signature capture.

As with many of the best inventions in history, APR works in a simple and elegant way - by recognizing the sound created when the glass is touched at a given position.

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Editor's note: This white paper was provided by Elo TouchSystems. Statements made in the text reflect the views and/or opinions of its author(s) only.