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:
Apr. 03, 2018
Filed:
Dec. 23, 2014
Grdf, Paris, FR;
Suez Groupe, Paris la Defense, FR;
Robert Lacoste, Chaville, FR;
Jean-Louis Dornstetter, Choisel, FR;
GRDF, Paris, FR;
SUEZ GROUPE, Paris la Defense, FR;
Abstract
The invention relates to a method for controlling digital data transmission in a remote-reading apparatus including a plurality of metering devices, each equipped with a radiofrequency module for communicating with a radiofrequency transmission/reception device of a gateway system of the apparatus, the method comprising a step of transmitting a digital signal from the radiofrequency module to the radiofrequency transmission/reception device and/or from the radiofrequency transmission/reception device to the radiofrequency module, the transmission being carried out via a carrier modulated by frequency shift modulation, the method being characterized in that the frequency shift modulation has a modulation index strictly equal to an integer value divided by two, and in that it includes a step of receiving the signal transmitted according to the modulation, comprising operations of generation of a synchronization signal synchronized with the received signal and synchronous detection of the received signal using the synchronization signal.