Patent · US Active

Method and device for modulating an active load with damping of auto oscillation

US9331748B2 · kind B2 · utility

12Cited by
5References
17Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 21, 2011
Grant dateMay 3, 2016
Priority date
Expiry dateAug 22, 2032

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L7/08
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A method for sending data by inductive coupling includes: extracting an antenna signal from an antenna circuit, extracting from the antenna signal a first periodic signal, producing a second periodic signal by way of a synchronous oscillator, placing the oscillator in a free oscillation mode and applying to the antenna circuit the second periodic signal, modifying the impedance of the antenna circuit, restoring the amplitude of the antenna signal, then resynchronizing the oscillator on the first periodic signal.

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