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US 7,095,311 B2Granted
Identification coding schemes for modulated reflectance systems
AssigneeThe Regents of the University of California
InventorsDon M. Coates, Scott D. Briles, Daniel L. Neagley, David Platts, David D. Clark
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Abstract
An identifying coding apparatus employing modulated reflectance technology involving a base station emitting a RF signal, with a tag, located remotely from the base station, and containing at least one antenna and predetermined other passive circuit components, receiving the RF signal and reflecting back to the base station a modulated signal indicative of characteristics related to the tag.
Claims16
An identifying coding apparatus employing passive modulated reflectance technology comprising:
- a base station emitting a RF signal;
- a tag, located remotely from said base station, including:
- a substrate;
- at least one antenna;
- and,
- a network, consisting only of passive components, connected to said antenna, said passive components selected from the group consisting of resistors, capacitors, inductors, and connecting conductors formed by printing said passive components onto said substrate, where said network is configured to reflect back to said base station the RF signal modulated to be indicative of characteristics related to said tag.
3 more elements
Dependencies are inferred from the claim text.