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US 5,689,239 AGranted
Identification and telemetry system
AssigneeIntegrated Silicon Design Pty. Ltd.
InventorsLeigh Holbrook Turner, Peter Harold Cole
Life of this patent
Estimating the term…
Abstract
The present invention relates to a system for automated identification of articles such as baggage or carrier cargo wherein an electronic sub system called an interrogator including a transmitter and receiver extracts by electromagnetic means useful information from an electronically coded label attached to such items as they are processed through the sorting operations at an airport or node of an article handling organization.
Claims13
An identification and telemetry system comprising:
- a transmitter for generating an interrogation signal and a receiver for detecting and decoding a reply signal;
- an interrogation field creation means for generating, within a scanned region, from said interrogation signal, an interrogation electromagnetic field through which an object possessing a code responding label may pass;
- an auxiliary illumination system for generating within said scanned region an auxiliary illumination field;
- a code responding label including a receiving antenna for receiving from the interrogation electromagnetic field a label interrogation signal, and sensing means for receiving from the auxiliary illumination field an auxiliary illumination signal, microcircuit means for generating from information stored within the label and from said auxiliary signal a label reply signal, and means within the label for generating from the label reply signal a label reply electromagnetic field;
- and
- a receiver antenna connected to said receiver for receiving from the label reply electromagnetic field a system reply signal;
- said label reply signal containing information indicative of the auxiliary illumination signal detected by the label.
4 more elements
Dependencies are inferred from the claim text.