Radio frequency data communications device

A radio frequency identification (RFID) interrogator sends parameters and return link configuration information to an RFID tag. The tag uses the parameters to determine whether or not to respond with a reply signal. The tag uses the return link configuration information to select a modulation type f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TUTTLE, MARK E, O'TOOLE, JAMES E, TUTTLE, JOHN R
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALARM SYSTEMS ANALOGOUS ARRANGEMENTS USING OTHER WAVES AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY BOOK COVERS BOOKBINDING CALCULATING COMPUTING COUNTING DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDEDFOR ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FILES HANDLING RECORD CARRIERS LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES LOOSE LEAVES MEASURING MOVABLE-STRIP WRITING OR READING APPARATUS ORDER TELEGRAPHS PERFORMING OPERATIONS PHYSICS PRESENTATION OF DATA PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITYFEATURES PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOTOTHERWISE PROVIDED FOR RADIO DIRECTION-FINDING RADIO NAVIGATION RECOGNITION OF DATA RECORD CARRIERS SEMICONDUCTOR DEVICES SIGNALLING SIGNALLING OR CALLING SYSTEMS SPECIAL PRINTED MATTER TESTING TRANSMISSION TRANSPORTING
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Beschreibung
Zusammenfassung:	A radio frequency identification (RFID) interrogator sends parameters and return link configuration information to an RFID tag. The tag uses the parameters to determine whether or not to respond with a reply signal. The tag uses the return link configuration information to select a modulation type from amongst a plurality of modulation types to modulate the reply signal.