Other

Avery Dennison Corporation

Mistal Software Limited Liability Company

Technology, Patents and Licensing, Inc.

Peter John Kuzma

Charles Anthony Eldering

Michael J Mauriel

Alan I Green

John Baldwin

Dieter Arabin

Stephen Arthur Mynott

Terrell Hill

Edward Carothers

A Radio Frequency Identification (RFID) system that tracks tags in real-time based on EPC codes and on other priority codes written into transponder memory fields of the tags. As an example, a priority code may be written into a memory of an RFID transponder identifying a high-value item or a small high-value item that is likely to be stolen. Based on the use of this priority code, those items can be preferentially tracked as opposed to items of low value or size such that they are unlikely to be stolen. Such use of priority codes and local filtering alleviates the need to go back to large centralized databases associating unique numbers with other parameters and potentially the history of the item.

RFID tag filtering and monitoring

A secondary reader and associated system are disclosed. In some embodiments, a secondary reader obtains and communicates information about a reading of an RFID tag by a primary reader by receiving an RFID signal that is responsive to a signal from the primary reader. In some embodiments, the secondary reader also receives an interrogation signal from the primary reader. In some embodiments, the secondary reader receives information related to the primary reader that may, in some instances, include a security key used to determine whether or not the primary reader is authorized to read the RFID tag. Variations on these and other embodiments are described more fully herein.

Secondary card reader

A system for tracking files at a site having a plurality of locations includes a plurality of antenna arrays and a plurality of files. Each of the antenna arrays generates an energizing field and is disposed at or near one of the locations. Each of the files includes a body including a pair of covers and a transponder assembly. The transponder assembly may include a substrate, an antenna disposed on one of the sides of the substrate, a circuit coupled to the antenna and having an identifier code, and an adhesive layer disposed on the other the side of the substrate. The transponder assembly may be attached to one of the covers by the adhesive. The identifier code is unique for each of the files. In operation, each of the transponder assemblies is activated by the energizing field of one of the antenna arrays when moved within an operative distance thereof. An activated transponder assembly responsively transmits a signal indicative of the identifier code. A reader in communication with the antenna arrays receives the signal from the activated transponder assembly. An administrator may be provided in communication with the reader for receiving information from the reader indicative of the location of the file associated with the transponder assembly transmitting the signal. Accordingly, each of the files of the system may be tracked as the files are moved throughout a site.

Trackable files and systems for using the same

Method for Producing a multiple-layer label and device for implementing said method. A device for manufacturing a multiple-layer tag has two laminating rollers ( ) arranged as a pair, between which portions ( ) of a coating web ( ) are joined to a supporting web ( ). The coating web ( ) is alternately stopped and driven between the laminating rollers ( ) at the speed of the supporting web ( ) by an advancing means ( ). By means of stopping the coating web ( ) for a longer or shorter period of time, the distance apart of the portions ( ) on the supporting web ( ) can be changed.

Method for producing a multi-layer label and device for implementing said method

A tag or label includes first and second sheets having facing sides. A thin, flat, flexible device is disposed between the facing sides of the first and second sheets and has opposing flat surfaces meeting at a perimeter surrounding the device. An adhesive fixes the facing sides of the first and second sheets to the opposing flat surfaces of the device and to one another except in an adhesion-free region, where the adhesion-free region is a frame-shaped adhesion-free region surrounding the perimeter of the device or a polygon-shaped adhesion-free region inside the perimeter of the device.

Tag or label with laminated thin, flat, flexible device

There is prepared a hydrophilic water swellable, water insoluble copolymer of (1) at least 35% of a hydroxy (C.sub.2 -C.sub.4 -alkyl)-2-alkenoate, (2) 30 to 60% of a 2-alkenamide or an N, N-di (C.sub.1 -C.sub.6 -alkyl)2-alkenamide, (3) 5 to 20% of R --OR.sub.1 --.sub.x Z where R is C.sub.1 -C.sub.6 alkyl, R.sub.1 is C.sub.2 -C.sub.4 alkylene, x is an integer of 1 to 4 and Z is 2-alkenoyloxy and (4) 0.3 to 5% of a polyethylenically unsaturated crosslinking agent having a relatively long aliphatic chain, the copolymer being capable of holding 50 to 80 weight % of water. The polymers are particularly useful in preparing hydrophilic contact lenses of high burst strength and extended wear properties.

Growing community of inventors

Richboro, PA, United States of America

Peter John Kuzma