RFID falls prey to patent trouble

By Peter Judge, Techworld.com |  Mobile & Wireless

RFID's promise of low-cost tags for asset tracking seems set to sour thanks to a patent lawsuit that is casting a cloud over standards work in the previously harmonious RFID world. Barcode supremo Intermec Technologies Corp. has sued RFID tag and reader maker Matrics Inc., basing its claim on four patents.

This could open up a world where who has what IP is what counts," said Erik Michielsen, director at ABI Research. "It is not a disaster, but it could put up the cost of RFID systems, and delay the standards.

Intermec has four U.S. patents, which Intermec VP Mike Wills VP sums up to Line56: "They address the basic RFID system: chip, tag, and reader, and how they interface with each other." The four patents, two of which it acquired from IBM Corp.'s RFID lab, which it bought in 1997 are:

-- Patent No. 5,528,222, issued in June 1996, which covers the idea of a radio-frequency circuit and memory in a thin flexible package.

-- Patent No. 5,912,632, issued in June 1999, which covers how a passive RF tag that can synchronize and lock onto a signal from a base station

-- Patent No. 5,995,019, issued November 1999, which handles the way the tags communicate with RF transponders

-- Patent No. 6,371,375, issued in April 2002, which covers the idea of an RF tag which stores information to be retrieved

Intermec's lawsuit is strange because the company has showed little sign of litigation before, despite a lot of high profile activity and plenty of products in the field, and a solid set of patents, which include one for the basic idea of a thin, cheap, flexible radio beacon. Also, the patents could equally apply to virtually all the other vendors in the emerging RFID market, including giants such as Texas Instruments Inc. and Royal Philips Electronics NV, and new startups such as Alien Technology Corp., yet the company is suing just one competitor, Matrics.

In fact, Matrics is part of one group proposing technologies to the next generation RFID standard, the UHF Generation 2, being put together by RFID standards maker, EPCglobal Inc., while Intermec is in a different camp. "This definitely clouds the UHF Generation 2 standards discussions and is fueling considerable animosity in the industry," said Michielsen in a statement to online publication Line56.

"The standards are a cooperative effort, where people have to sign off on intellectual property sharing," said Michielsen. However, this lawsuit could show a crack in that agreement. At present the intellectual property tends to reside with the more established companies such as Intermec, while newer venture funded companies such as Matrics and Alien tend to own less intellectual property, and also be under pressure from their funders to get a return quickly.

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