signature analysis
Signature
analysis is either of two distinct processes.
1. Signature
analysis is the scrutinizing of human signatures in order to detect forgeries.
The analysis of a human signature involves the use of specialized software to
evaluate not only the contours, but the movements originally made to create, a
signature. Forged signatures tend to be produced more slowly than genuine ones.
Even if the author speeds up the forgery process, it is impossible to duplicate
the motion-versus-time function that would take place in a genuine signature.
The software can also compare multiple signatures. Because of the variations
found in a single person's multiple signatures, any electronically captured
signature can only be used once. Two identical signatures suggest that at least
one of them represents an attempt at fraud.
Human signature
analysis is used in the banking, government, insurance, and health-care
industries, and has gained popularity in recent years as a tool to combat identity
theft.
2. In analog
electronics, signature analysis is a troubleshooting technique in which an AC
(alternating-current) signal with a specific waveform (usually a sine wave) is
applied across a component. The resulting current-versus-voltage
characteristic, called the analog signature, is rendered on an oscilloscope,
with current displayed along the vertical axis and voltage displayed along the
horizontal axis. The resulting analog signature is unique for each particular
type of "healthy" component (resistor, capacitor, or diode, for
example). Any deviation from the normal signature strongly suggests the existence
of a fault in that component.
Analog
signature analysis is used in complex electronic systems to troubleshoot
printed-circuit boards to the component level.
This was last updated in December 2014
Posted by: Margaret Rouse
Over the past twenty-five years, I have enjoyed a dynamic and successful career and have attained an extensive background in IT and electronic communications by selling and marketing within the information technology marketplace.Anyone who would like to review the book and have it posted on my blog or website, please contact me paul@netiquetteiq.com.
If you have not already done so, please view the trailer for my book below.
.jpg)
=======================================
In addition to this blog, I maintain a radio show on BlogtalkRadio and an online newsletter via paper.li.I have established Netiquette discussion groups with Linkedin and Yahoo. I am also a
member of the International Business Etiquette and Protocol Group and
Minding Manners among others. I regularly consult for the Gerson Lehrman
Group, a worldwide network of subject matter experts and I have been
contributing to the blogs Everything Email and emailmonday . My work has appeared in numerous publications and I have presented to groups such as The Breakfast Club of NJ and PSG of Mercer County, NJ.
I am the president of Tabula Rosa Systems,
a “best of breed” reseller of products for communications, email,
network management software, security products and professional
services. Also, I am the president of Netiquette IQ. We are currently developing an email IQ rating system, Netiquette IQ, which promotes the fundamentals outlined in my book.
Over the past twenty-five years, I have enjoyed a dynamic and successful career and have attained an extensive background in IT and electronic communications by selling and marketing within the information technology marketplace.Anyone who would like to review the book and have it posted on my blog or website, please contact me paul@netiquetteiq.com.
If you have not already done so, please view the trailer for my book below.
===============================================
No comments:
Post a Comment