Method and apparatus for the contact-free identification of articles having a protective enclosure, wherein the articles are identified using multiple electromagnetic wave transmission/reception devices
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 10, 1996
Grant Date -
N/A
app pub date -
Jan 11, 1995
filing date -
Jan 11, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The system has a reader of electronic labels comprising several devices for the transmission/reception of electromagnetic waves, offset angularly about a median axis so that, when the reader is placed in the vicinity of a label and irrespectively of their relative orientation, at least a part of the lines of the magnetic field generated by at least one of said transmission/reception devices can get looped by passing into the coil of the label in the direction of its axis. The label has a foil made of amagnetic and conductive material placed against the antenna and parallel to it to form a reflective screen for the electromagnetic waves. Application to the contact-free identification of objects, notably metal objects, such as gas cylinders.
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