RF Noise Canceller IC boosts signal strength.February 2, 2009 -
Capable of canceling broad range of unwanted RF interference to improve receiver sensitivity, QHx230 helps increase GPS signal strength and satellite visibility. It is based on analog Q:ActiveŽ noise canceling technology, and incorporates interface that supports preset values for immediate deployment in mobile devices and laptop computers where EMI aggressors like camera buses or display drivers de-sense receivers.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Quellan, Inc.
2900 Gordon Ave.
Santa Clara, CA, 95051
USA
Quellan Raises Signal Strength Bars with Newest Noise Canceller
Demonstration shows dramatic increase in GPS signal strength and satellite visibility
LAS VEGAS, NEVADA - Consumer Electronics Show 2009 (CES) - January 8, 2009 - Quellan, Inc. a leader in Analog Signal Processing and RF Noise Cancellation ICs, today announced its latest RF noise canceller IC, the QHx230. A demonstration with off the shelf GPS PND's showed the signal strength bars on the display instantly doubled in height for each satellite and three additional satellites appeared when the canceller was turned on.
Based on the company's patented analog Q:ActiveŽ Noise Canceling technology, the ultra small CMOS device measures just 1 square millimeter in size and is capable of canceling a broad range of unwanted RF interference to improve receiver sensitivity. The QHx230 incorporates a new interface that supports preset values for immediate deployment in mobile devices and laptop computers where EMI aggressors like camera buses or display drivers de-sense receivers, causing performance loss and end user dissatisfaction. This approach eliminates the need for external software development and baseband processing resources, thereby accelerating time to market and reducing power and PCB footprint.
Quellan's noise cancellation is an enabling technology for adding wireless capability to high density, small mobile systems," said Robert Dobkin, CTO of Linear Technology Corporation. "Today's mobile systems have fast digital processors that step on low level wireless signals, diminishing performance or even rendering mobile operation unusable. Quellan's noise cancellation technology can get the signal back."
"The Quellan approach to the evasive noise problem is very innovative and profound, leading to an inexpensive solution for highly-converged mobile phone systems," comments Kenji Tsuda, a semiconductor technology analyst based in Tokyo. "Quellan's Noise Cancellers will greatly increase signal clarity even in weak-signal environments such as underground roadways or in high rise buildings," Tsuda continues, "moving forward, we'll see a wide variety of functional capabilities in a wireless system with Quellan's Noise Cancellation, so consumers will enjoy clear high quality calls and mobile TV experience."
"As GPS devices in the after market become cheaper and the uptake increases, OEM's need to ensure that their products have good performance across all use situations," said Philip Gadd, Vice President of Marketing at Quellan Inc. "Research has shown that retail PND returns because of frustration with performance are one of the largest causes of customer dissatisfaction for this growing consumer market segment."
About Quellan
QUELLAN, INC., headquartered in Santa Clara, California, designs and markets analog integrated circuits that dramatically enhance the performance of system interconnects and radio frequency receivers. Quellan chips are embedded in connectors, receiver modules and handheld mobile devices to improve speed, density and reception quality. The company's patented Collaborative Signal Processing products perform adaptive noise cancellation and equalization with an entirely analog signal path for ultra low power. Quellan serves a broad range of applications in the computing, storage, consumer and wireless markets.
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