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CalAmp Awarded Key Smart Antenna Patent; Adaptive Digital Beamforming and Smart Antenna Technology Substantially Enhances Wireless Performance and User Experience.


OXNARD, Calif. -- CalAmp Corp. (Nasdaq:CAMP), a leading provider of wireless products and engineering services, today announced that the U.S. Patent and Trademark Office has awarded CalAmp a new U.S. Patent titled "Wireless communications wireless communications

System using radio-frequency, infrared, microwave, or other types of electromagnetic or acoustic waves in place of wires, cables, or fibre optics to transmit signals or data.
 structures and methods utilizing frequency domain spatial processing" (Number 7,072,693). The patent outlines a system and method for wireless transceivers that receive and transmit signals from an array of antennas that are connected to spatial processing channels. The patent's claims cover a system to enhance the overall performance of a wireless broadband High-speed wireless transmission of data. What is "high" speed is always a changing number. Wireless systems are typically slower than land-based, wireline networks. In the past, wireless broadband started at 250 Kbps, whereas land-based broadband was generally considered to start at T1  network in the presence of multipath interference Multipath interference is a phenomenon in the physics of waves whereby a wave from a source travels to a detector via two or more paths and, under the right condition, the two (or more) components of the wave interfere. .

CalAmp's smart antenna Smart antenna (also known as adaptive array antennas, multiple antennas and recently MIMO) refers to a system of antenna arrays with smart signal processing algorithms that are used to identify spatial signal signature such as the direction of arrival (DOA) of the signal, and use  development has resulted in beamforming technology that can be leveraged to enhance the performance and coverage of wireless networks such as WiFi (802.11) and WiMAX (802.16). It uses multiple antennas and powerful digital signal processing See DSP.

Digital Signal Processing - (DSP) Computer manipulation of analog signals (commonly sound or image) which have been converted to digital form (sampled).
 to dynamically form an antenna pattern optimized for each network user, based on interference and other wireless channel conditions. The complex spatial processing cancels interference by better utilizing high multipath, non-line-of-sight channels, thereby substantially improving data throughput performance. These performance improvements and the reduction of "dead spots Dead spots are abnormally fast decays of the fundamental tone on stringed instruments and are caused by a damping of the string's vibrations at a given note, due to energy transfer from the string to the instrument body. " significantly enhance the user experience, in particular with demanding and often mobile applications such as Voice over IP.

Fred Sturm, CalAmp's President and Chief Executive Officer, commented, "This patent is the latest in a series of patents related to smart antenna technology awarded to CalAmp over the past few years. It expands our intellectual property portfolio and demonstrates the Company's innovation and leadership in wireless technology. Spectral efficiency Spectral efficiency or spectrum efficiency refers to the amount of information that can be transmitted over a given bandwidth in a specific digital communication system.  and methods to improve performance in a crowded wireless spectrum and challenging RF environments are critical issues that many companies in this industry are trying to address today. CalAmp's proven and patented technology helps solve these problems."

Other patents that have previously been awarded to CalAmp include "Wireless communication structures and methods with enhanced range and performance" (Number 7,035,652) and "Spatial-temporal methods and systems for reception of non-line-of-sight communication signals" (Number 6,947,507). CalAmp's patent portfolio also includes other patents pending in the U.S. and in other countries.

About CalAmp Corp.

CalAmp is a leading provider of wireless equipment, engineering services and software that enable anytime/anywhere access to critical information, data and entertainment content. With comprehensive capabilities ranging from product design and development through volume production, CalAmp delivers cost-effective high quality solutions to a broad array of customers and end markets. CalAmp is the leading supplier of Direct Broadcast Satellite (DBS (Direct Broadcast Satellite) A one-way TV broadcast service from a communications satellite to a small round or oval dish antenna no larger than 20" in diameter. ) outdoor customer premise equipment to the U.S. satellite television market. CalAmp also provides wireless connectivity solutions for the telemetry telemetry

Highly automated communications process by which data are collected from instruments located at remote or inaccessible points and transmitted to receiving equipment for measurement, monitoring, display, and recording.
 and asset tracking markets, private wireless networks, public safety communications and critical infrastructure and process control applications. For additional information, please visit CalAmp's website at www.calamp.com.
COPYRIGHT 2006 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Date:Aug 17, 2006
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