Method and a system for reducing the influence of disturbing signals in transponder applications
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 24, 2004
Grant Date -
Dec 6, 2001
app pub date -
Mar 7, 2001
filing date -
Mar 13, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a transponder application, at least one transponder and at least one interrogating reader, the reader has at least two receiving units so disposed, for instance at different distances, relatively to the transponder, that signals from the same are received at different levels by the receiving units. By combination, e.g. by subtraction, of the received signals, disturbing signals received at practically the same level are eliminated while the difference of useful transponder signals is available. This substantially improves system performance in transponder applications and allows to increase the operating distance between reader and transponder.
First Claim
Other Claims data not available
