Some might say that RFID goes back even further, but according to this article from the Mercury News, we have Charles Walton to thank. They write:
The next time you wave a key card to unlock the door to your office building, think of Charles Walton.
One of Silicon Valley's unsung inventors, Walton's patents on radio frequency identification, or RFID, spawned those electronic door keys. Now the technology Walton pioneered in the 1970s and 1980s is poised to change the way billions of products are tracked.
http://www.mercurynews.com/mld/mercurynews/business/technology/8861856.htm?1c
Posted by holtzman at June 8, 2004 01:57 PM