This page is dedicated to visitors of RF Cafe who
have managed one of the crowning achievements of an engineering career - being awarded
a patent. If you are listed as the Inventor on a patent and would like to have it
listed here, please send me an
e-mail with the patent number, and I will be honored to include
your invention in the list. Your patent can date back to Thomas Edison's time
and it still is welcome. Patent listings are not limited to only those issued
by the USPTO. Listings will be placed in numerical order, and the newest addition
will be flagged in color. - U.S. Patent and Trademark Office - Copyright Resources Page
Credit/calling card pay telephone method and system employing telephone unit
local card-checking and other intelligence cooperative with local personal host
computer Inventor Jay Zebryk (Southbridge, MA)
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 World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
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