Patent · US Active

Controllable read blocking based radio-frequency identification

US10521711B1 · kind B1 · utility

0Cited by

5References

15Claims

0Family size

Assignee

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Ning Ge · Newark, US
Jarrid Wittkopf · Palo Alto, US
Robert C. Ionescu · San Jose, US
Helen A. Holder · Palo Alto, US
Paul Howard Mazurkiewicz · Fort Collins, US

Key dates

Filing date	Feb 22, 2017
Grant date	Dec 31, 2019
Priority date	—
Expiry date	Feb 22, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG06K7/10366
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In some examples, a controllable read blocking based radio-frequency identification (RFID) device may include a substrate layer, and a trace formed of a conductive material and disposed on, partially within, or fully within the substrate layer. The controllable read blocking based RFID device may further include a controllable read blocking layer disposed on the substrate layer and the trace and including a fluid disposed in the controllable read blocking layer to selectively block or allow passage of electromagnetic waves to the trace to respectively inhibit or allow communication of a RFID reading device with the controllable read blocking based RFID device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.