Amtech Systems, Incorporated

Other

Tc License, Ltd.

Charles A Johnson

Kelly Gravelle

Matthew K Burnett

Dale L Scott

Robert W Tiernay

Filip Weytjens

Darren W Johnson

Michael M Haley

Jeremy Landt

Tai Won Youn

Scott Noakes

Orion B Berryman

George McGraw

Colin Watt

Calden N Stimpson

A multi-mode, preferably dual mode, radio frequency identification (RFID) tag is adapted for automatic detection of whether a RFID reader located within communication range of the RFID tag is transmitting a continuous wave (CW) or modulated wave types of RF signal, and accordingly, mandating a response from the tag in read-only (RO) mode or read/write (R/W) mode, respectively. The tag includes means for designating one of the RO and R/W operating modes as a default mode of the tag, and for switching the tag from its default mode to its other operating mode, and vice versa, according to a rule for determining the frequency of occurrence of a selected event related to signal type of the reader. A device-implemented method of this automatic detection, and a method of fabricating the tag, are also disclosed.

Automatic mode detection in a dual operating mode RFID tag

An RFID tag for use in a vehicle for use in an electronic toll collecting system. The tag is capable of transmitting data to a tag interrogator indicating the occupancy status of the vehicle. In an embodiment, the tag has a user input and a visual and audible tag status indicator. The user input is used to change the occupancy status of the tag, wherein the occupancy status is a portion of a message sent by radio frequency to the interrogator when the vehicle passes through a toll area.

RFID vehicle tag with manually adjustable data fields

An RFID tag is disclosed for use in roadway tolling systems having specially designated lanes for high occupancy vehicles, wherein more favorable toll rates are allotted to vehicles with more than one occupant. In an embodiment, the tag has a selection switch for connecting one of a plurality of ASICs to an antenna. Each ASIC is programmed to transmit a different message, wherein the message conveys information regarding the occupancy level of the vehicle. There is also information in the ASICs that is common to them for the tag.

System and method for automated HOV lane toll collection

An RFID tag for use in a vehicle for use in an electronic toll collecting system. The tag is capable of transmitting data to a tag interrogator indicating the occupancy status of the vehicle. In an embodiment, the tag has a user input and a visual and audible tag status indicator. The user input is used to change the occupancy status of the tag, wherein the occupancy status is a portion of a message sent by radio frequency to the interrogator when the vehicle passes through a toll area. In an embodiment the tag has memory for storage of said tag status and the user input can be used to cause the tag to indicate a stored tag status. In a further embodiment, the tag reverts to a default status after a predetermined period of time.

RFID tag with occupancy status recall

An RFID tag having a non-volatile memory and a piezoelectric sensor. The piezoelectric sensor produces an electrical charge that momentarily supplies electrical power to the RFID tag when subjected to a mechanical force and the electrical power is sufficient to record data in the non-volatile memory. The piezoelectric sensor is affixed to an article such that an attempt to tamper with the article produces sufficient mechanical force on the piezoelectric sensor to record data evidencing the tampering in the non-volatile memory.

RFID tag with piezoelectric sensor for power and input data

In railroad uses or the like, a transponder having a single key for transactions is accessible through a reader/programmer to multiple users or owners. The reader/programmer receives a transaction request and determines whether the user or owner is authorized for that transaction. If so, the reader/programmer generates the key on the fly and performs the transaction.

System and method for handling user keys and user passwords in a tagging system where the tag itself is capable of carrying only a single key or password

Growing community of inventors

Albuquerque, NM, United States of America

Charles A Johnson