Rf Code, Inc.

Other

Rodgers Technology Center, Inc.

Howard K Jaecks

James L Rodgers

Billy C Fowler

Roc A Lastinger

John J Coulthard

Mohammad Rehman

Paul A Picard

Steven D Petersen

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.

Object identification system with adaptive transceivers and methods of operation

A Combination Electronic and Paper Ballot Voting System with electronic vote capture capability for automatically recording, tallying, and storing votes. Election headquarters computer software () combines voter data from precinct computers () and produces tallies. Precinct computers () use software () for vote data collection from electronic readers () that interface with precinct computers () via cables () through a system controller () that is a hub for connecting readers () with precinct computers (). A voter places configured paper ballot () on reader () and marks choices on ballot () using a combination electronic and ink-marking stylus (). An XY coordinate positioning device (), inside reader () and underneath ballot placement area, electronically captures voter choices. Voter data are instantly transferred to precinct computers (). Precinct computer software () tallies voter data, configures report and storage formats, and communicates results to headquarters computer (). Permanently marked paper ballot () is retained as a definitive record of voter intent.

Combination electronic and paper ballot voting system

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.

A grid consists of a first serpentine, and a second serpentine overlapping the first serpentine. Signals from the first and second serpentines are analyzed to determine transducer position. The first and second serpentines are foldback serpentines. The first serpentine is offset from the second serpentine by approximately ninety degrees.

Method and apparatus for diminishing grid complexity in a tablet

Object Identification system with adaptive transceivers and methods of operation

A monitoring system incorporates antennas that transmit signals at predetermined frequencies; the transmitted signals are received by tags located in the active monitoring area of the antenna which then transmit signals back to the antenna. The antennas are tuned to each desired frequency prior to driving the antennas to transmit at the desired frequency. The system transmits a range of frequencies in a sequence that uses overlapping frequency steps. The monitoring system is also constructed having a variable configuration resulting in the ability to be reconfigured under program control to conform to varying system requirements. The integrated monitoring system employs programmable formats for reconfiguration such that upon program input from a host computer the system can assume predetermined configurations to conform to the particular tasks for the specific application. The monitoring system incorporates an antenna system that employs digitally controlled, differentially driven, scanning transceivers, and walk through magnetic induction antennas positionable in various configurations to maximize detection of tags being transported through the antenna system.

Monitoring antenna system

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.

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Mesa, AZ, United States of America

Howard K Jaecks