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RF Cascade Workbook 2005 - RF Cafe
RF Cascade Workbook

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RF & EE Symbols Word
RF Stencils for Visio

About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2016
Webmaster:
Kirt Blattenberger,
 BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:
 AirplanesAndRockets.com

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Look Deep into My Eyes
Kirt's Cogitations™ #151

These original Kirt's Cogitations™ may be reproduced (no more than 5, please) provided proper credit is given to me, Kirt Blattenberger.

Please click here to return to the Table of Contents.

   Cog·i·ta·tion [koj-i-tey'-shun] – noun: Concerted thought or reflection; meditation; contemplation.
   Kirt [kert] – proper noun: RF Cafe webmaster.

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Look Deep into My Eyes

Fingerprint and retina scanners are the security measures of choice by spy movie producers and even the U.S. government, but in South Korea and Japan, vein recognition is the preferred method. The system is widely used in Asia for cultural reasons, since hygiene is a prime concern there. No contact with the vein recognition scanner is required since it uses an infrared beam to map veins on the back of the hand. Fingerprint and retina scanners require the scanee to physically touch the device. Vein recognition will start appearing in North America later in 2004.