The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2019
Filed:
Aug. 19, 2016
Itron Global Sarl, Liberty Lake, WA (US);
Philippe Chiummiento, Fontenay-aux-Roses, FR;
Matthieu Pichot, Issy-les-Moulineaux, FR;
Dinh Thang Vu, Issy-les-Moulineaux, FR;
Itron Global SARL, Liberty Lake, WA (US);
Abstract
There is provided a method and apparatus for determining the input impedance (Z) of an AC transmission line used for Power Line Communications (PLC), using a transmitted data packet having a preamble portion. The method comprises, at the analog-front-end (AFE) of the AC transmission line, determining the current through the AFE and the AC transmission line during transmission of the preamble portion of the data packet and determining the voltage during transmission of the preamble portion of the data packet. The method further comprises calculating the total impedance (Z) from the determined current and voltage. The total impedance (Z) includes the input impedance (Z) of the AC transmission line and the AFE impedance (Z). Finally, the method includes determining the input impedance (Z) of the AC transmission line from the total impedance (Z).