The multi-mode identification system is a short-range cooperative electronic identification
system for use in the identification of fish, birds, animals, and inanimate objects. The system …

Multi-memory electronic identification tags are utilized in short-range cooperative electronic
identification systems for the identification of a variety of objects. Such systems are …

It is an object of the present invention to provide an improved reading device for reading
transponder type devices or tags of the above identified type attached to an object moving …

Accordingly, the present invention is directed to a method and system for powering a
portable tag of an identification system of the type adapted to transfer energy by magnetic …

This invention relates to cooperative identification sys tems in which the identifying agency
and the object to be identified cooperate in the identification process according to a …

(57) ABSTRACT A magnetic tag or marker is described which is capable of functioning as a
multi-bit information carrying tag. The tag may be attached to an article and then used as a …

A reader for radio frequency identification tags having at least one magnetic field
transmitting and receiving coil which is oriented in a given plane and which is responsive to …

Magnetic tags or markers are disclosed, together with a variety of techniques by means of
which Such tags may be interrogated. In one aspect, the magnetic marker or tag which is …

The invention relates to a Special type of magnetic tag that serves both as an identifier of the
article to which it is attached and as an antitheft device. The former attribute is especially …

The present invention overcomes the shortcomings of the stationary detectors as well as the
moving detec tors described above. In particular, the present inven tion provides a plurality …