Patent · US Active

Carrier signal generation circuit and method for generating a carrier signal

US10242303B2 · kind B2 · utility

0Cited by
12References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 29, 2017
Grant dateMar 26, 2019
Priority date
Expiry dateMar 29, 2037

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L7/033
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

In an embodiment, a carrier signal generation circuit can be used for a Radio-frequency identification (RFID) transponder device. A frequency divider circuit has a first input to receive a first frequency signal, a second input to receive a division ratio signal, and an output to provide a carrier signal as a function of the first frequency signal and the division ratio signal. A phase difference circuit has a first input to receive an analog reader device carrier signal, a second input to receive a signal based on the first frequency signal and an output to provide a digital phase difference signal as a function of the reader device carrier signal and the signal based on the first frequency signal. A signal processor has an input coupled to the output of the phase difference circuit.

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