Auto-tunning scanning proximity reader
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 13, 2001
Grant Date -
N/A
app pub date -
Jan 12, 1999
filing date -
Jan 12, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A proximity reader for a radio frequency identification (RFID) system is programmed for determining and storing optimum antenna impedance values to achieve peak antenna resonance at each of multiple operating frequencies. Antenna resonance is peaked at power up and periodically during operation to compensate for environmental detuning influences. The reader scans the multiple frequencies to more effectively search for off-frequency identification tags.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully