John J Coulthard, 892455 E Broadway Rd UNIT 64, Mesa, AZ 85204

6340932, Jan 22, 2002

Jun 27, 2000

09/604180

James L. Rodgers - Mesa AZ
John J. Coulthard - Scottsdale AZ
Billy C. Fowler - Phoenix AZ
Howard K. Jaecks - Mesa AZ
Roc A. Lastinger - Mesa AZ
Paul A. Picard - Mesa AZ
Mohammad A. Rehman - Chandler AZ

RF Code, Inc. - Mesa AZ

G08B 1314

3405727, 3405728, 343700, 343872, 342 42

A carrier, as used for example to transport several radio frequency identification devices, includes a circuit having an antenna and a series capacitor for tuning the antenna. Enhanced transceiver communication results when transceivers are placed in the carrier. Alternately, a carrier may include first and second antenna circuits, each having a capacitor for tuning the respective antenna. The two circuits may cooperate so that energy received in a first pattern is re-radiated in a second pattern for further enhanced transceiver communication, such as detection of the presence of the RFID device within the carrier.

6362737, Mar 26, 2002

Aug 11, 1999

09/372274

James L. Rodgers - Mesa AZ
John J. Coulthard - Scottsdale AZ
Billy C. Fowler - Phoenix AZ
Howard K. Jaecks - Mesa AZ
Roc A. Lastinger - Mesa AZ
Paul A. Picard - Mesa AZ
Mohammad A. Rehman - Chandler AZ

RF Code, Inc. - Mesa AZ

G08B 1314

3405721, 3405722, 3405724, 340 101, 340 102, 340 103, 375219, 342 44

An object identification system includes a monitor and a plurality of transceivers that communicate over a common medium. The monitor includes a first transmitter, a first receiver, and a processor. Each transceiver includes a resonant circuit, a transmitter, a receiver, and an antenna coupled to the resonant circuit. The processor performs a method for performing transceiver communication that includes the steps of: (a) transmitting from the first transmitter a first frequency for a first duration; (b) after lapse of the first duration, receiving via the first receiver a response signal from at least one of the resonant circuits; (c) determining a second frequency from the received response signal; and (d) performing transceiver communication using the second frequency. Transceivers of the type having a resonant circuit coupled to an antenna, when operating in close proximity to each other, may interfere with the response from a single transceiver by absorbing the energy intended to be received by the transceiver, absorbing the energy transmitted by the transceiver, or altering the resonant frequency of the resonant circuit. By determining the second frequency for transceiver communication, the monitor may establish communication with the single transceiver at a frequency better suited for transferring operative power to the transceiver, conducting an interrogation protocol for identifying the transceiver, or for data transfer.

6552661, Apr 22, 2003

Aug 25, 2000

09/648409

Roc A. Lastinger - Mesa AZ
John J. Coulthard - Scottsdale AZ
Steve Koerner - Mesa AZ

RF Code, Inc. - Mesa AZ

G08B 1314

3405721, 3405734, 34082549, 342 44, 342450, 455 671, 455440, 455443, 455444

A locator according to various aspects of the present invention includes a receiver and a processor. The receiver receives several signals, each signal having respective indicia of identification device presence within a respective communication pattern. The processor performs a method for determining whether a first identification device is located within a zone. The method includes the following steps performed in any order. A first step of determining, in response to receiver signals, a respective reliability of communication between the receiver and a plurality of identification devices. The plurality includes the first identification device and at least one second identification device. A first and a second communication pattern each respectively has a periphery such that communication with a provided identification device when located beyond the periphery is less reliable than communication with the provided identification device when located within the periphery. The first identification device is located within the periphery of the first pattern.

6621410, Sep 16, 2003

Oct 2, 1999

09/410897

Roc A. Lastinger - Mesa AZ
James L. Rodgers - Mesa AZ
John J. Coulthard - Scottsdale AZ
Robert P. Ufford - Roswell GA

RF Code, Inc. - Mesa AZ

G01S 1302

340 1042, 340 101, 3405727

A system includes an identification circuit, a grid antenna, a receiver, and a processor. The identification circuit includes resonant circuits formed on a substrate within a perimeter. Identification may be based on a quantity or physical arrangement of detected resonant circuits within the perimeter. One resonant circuit provides a reference signal. Any resonant circuit may be tuned in accordance with the reference signal by the addition or subtraction of reactance formed on the substrate. A capacitance of a first group of capacitors located outside a turn of an inductor is roughly equal to a capacitance of a second group of capacitors located inside the turn. Any resonant circuit may also be tuned by affixing a resonance modifying element, for example a sticker, to the identification circuit. The grid antenna provides antenna field patterns, one for each cell location. The receiver communicates with the identification circuit via the grid antenna.

6831562, Dec 14, 2004

Mar 9, 2001

09/802728

James L. Rodgers - Mesa AZ
John J. Coulthard - Scottsdale AZ
Billy C. Fowler - Phoenix AZ
Howard K. Jaecks - Mesa AZ
Roc A. Lastinger - Mesa AZ
Paul A. Picard - Mesa AZ
Mohammad A. Rehman - Chandler AZ

RF Code, Inc. - Mesa AZ

G08B 1314

3405724, 340 101, 340 102, 340 103, 340 104, 340 105, 375219, 235436, 455 73

An object identification system includes a monitor and a plurality of transceivers that communicate over a common medium. The monitor includes a first transmitter, a first receiver, and a processor. Each transceiver includes a resonant circuit, a transmitter, a receiver, and an antenna coupled to the resonant circuit. The processor performs a method for performing transceiver communication that includes the steps of: (a) transmitting from the first transmitter a first frequency for a first duration; (b) after lapse of the first duration, receiving via the first receiver a response signal from at least one of the resonant circuits; (c) determining a second frequency from the received response signal; and (d) performing transceiver communication using the second frequency.

6972677, Dec 6, 2005

Aug 27, 2003

10/650545

John J. Coulthard - Scottsdale AZ, US

G08B001/00

340531, 34053913, 34053915, 3405731

A system for improved monitoring of changes in the location and conditions surrounding people and property, utilizing fixed and moveable logic processors, which communicate with each other as well as receivers. Non-continuous signaling may be used to provide for reduced power consumption, and network coupling may be used to provided for exporting information to anywhere in the world.

6982646, Jan 3, 2006

Aug 3, 2001

09/921956

James L. Rodgers - Mesa AZ, US
John J. Coulthard - Scottsdale AZ, US
Billy C. Fowler - Phoenix AZ, US
Howard K. Jaecks - Mesa AZ, US
Roc A. Lastinger - Mesa AZ, US
Paul A. Picard - Mesa AZ, US
Mohammad A. Rehman - Chandler AZ, US

RF Code, Inc. - Mesa AZ

G08B 13/14

3405727, 340 101, 340 35, 340531, 340505, 4552771

An object identification system includes a monitor and a plurality of transceivers that communicate over a common medium. The monitor includes a first transmitter, a first receiver, and a processor. Each transceiver includes a resonant circuit, a transmitter, a receiver, and an antenna coupled to the resonant circuit. The processor performs a method for performing transceiver communication that includes the steps of: (a) transmitting from the first transmitter a first frequency for a first duration; (b) after lapse of the first duration, receiving via the first receiver a response signal from at least one of the resonant circuits; (c) determining a second frequency from the received response signal; and (d) performing transceiver communication using the second frequency. Transceivers of the type having a resonant circuit coupled to an antenna, when operating in close proximity to each other, may interfere with the response from a single transceiver by absorbing the energy intended to be received by the transceiver, absorbing the energy transmitted by the transceiver, or altering the resonant frequency of the resonant circuit. By determining the second frequency for transceiver communication, the monitor may establish communication with the single transceiver at a frequency better suited for transferring operative power to the transceiver, conducting an interrogation protocol for identifying the transceiver, or for data transfer.

7193512, Mar 20, 2007

May 13, 2005

11/128530

John J. Coulthard - Scottsdale AZ, US

Radio Data Corporation - Scottsdale AZ

G08B 1/00

340531, 34053913, 34053915

A system for improved monitoring of changes in the location and conditions surrounding vehicles and shippable property, utilizing fixed and moveable logic processors, which communicate with each other as well as receivers. Non-continuous signaling may be used to provide for reduced power consumption, and network coupling may be used to provided for exporting information to anywhere in the world by means of, for example GSM/GPS infrastructures.