RF Cafe Homepage
Innovative Power Products Passive RF Products - RF Cafe

Cafe Press

Windfreak Technologies Frequency Synthesizers - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

LadyBug LB5954L Power Sensor with LAN Option - RF Cafe

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

RF Cafe University"Factoids," "Kirt's Cogitations," and "Tech Topics Smorgasbord" are all manifestations of my ranting on various subjects relevant (usually) to the overall RF Cafe theme. All may be accessed on these pages:

 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37

< Previous                      Next >

 

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.

LadyBug LB5954L Power Sensor with LAN Option - RF Cafe
Innovative Power Products (IPP) RF Combiners / Dividers

Windfreak Technologies Frequency Synthesizers - RF Cafe

everythingRF RF & Microwave Parts Database (h1)