Product category: Touchscreens and Touch Sensors
News Release from: Quantum Research Group | Subject: QT511 and QT1080
Edited by the Electronicstalk Editorial Team on 07 August 2006
IR remote has a touch of class
Remote Solutions of Korea is using touch wheel and touch key chips in its innovative RH60 LCD remote control.
Quantum Research Group, the charge-transfer (QT) capacitive touch company, has landed a deal to supply Remote Solutions of Korea with touch wheel and touch key chips for its innovative RH60 LCD remote control The touch wheel is driven by the company's QT511 device and a QT1080 provides six function keys and a wake-up on proximity function that enables the remote control to come to life and light up as the hand of the user approaches it
This article was originally published on Electronicstalk on 13 Jun 2001 at 8.00am (UK)
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The RH60 is an infra-red universal remote control for up to 15 devices.
The i-Pod style wheel makes it easy to navigate and a 3.9in colour LCD provides an icon-based user interface that's very similar to those found on mobile phones.
The QT511 QWheel chip is targeted primarily at portable applications.
It features low power consumption, enhanced operation under difficult sensing conditions and the facility to place a mechanical button in the centre of the scroll wheel without experiencing false detects on operation.
QWheel touch wheel technology can be thought of as a capacitive potentiometer, where the wiper is a finger.
The electrode consists of a simple resistive ring element placed behind a plastic panel; three capacitive QT sensing channels are connected to this ring, and the signals processed to 7bits of absolute position.
The result is output on an SPI serial interface.
The device can be set to sense through panels up to 3mm thick, and even through gloves.
The QT1080 offers designers an easy to use solution, ready to drop right into any mobile device.
It is ideal for portable applications thanks to its QFN-32 package (1.1mm profile) and low power demands (40uA at 3V).
High-speed processing ensures an instant response to touch input and a patented adjacent key suppression technique means that keys can be tightly spaced without introducing cross-interference and sensing errors.
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