Patent · US Active

RFID-UHF integrated circuit

US7564340B2 · kind B2 · utility

6Cited by
5References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 8, 2005
Grant dateJul 21, 2009
Priority date
Expiry dateJul 8, 2027

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06K19/0723
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A contactless integrated circuit is provided that includes a RFID communication interface, a UHF communication interface, a data processing unit, an interface multiplexer, a communication mode detection circuit, a first modulation and demodulation circuit, a second modulation and demodulation circuit, and a multiplexer demultiplexer circuit. The interface multiplexer couples the data processing unit to the RFID or UHF communication interfaces. The multiplexer demultiplexer circuits are driven by mode signals delivered by the communication mode detection circuit, to link the data processing unit to one of the two modulation and demodulation circuits.

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