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. 09, 2013
Filed:
Oct. 06, 2009
Andrea Cathelin, Laval, FR;
Stéphane Thuries, Castanet-Tolosan, FR;
Sylvain Godet, Saint-Cézert, FR;
Eric Tournier, Toulouse, FR;
Jacques Graffeuil, Ramonville Saint Agne, FR;
Andrea Cathelin, Laval, FR;
Stéphane Thuries, Castanet-Tolosan, FR;
Sylvain Godet, Saint-Cézert, FR;
Eric Tournier, Toulouse, FR;
Jacques Graffeuil, Ramonville Saint Agne, FR;
STMicroelectronics SA, Montrouge, FR;
Centre National de la Recherche Scientifique (CNRS), Paris, FR;
Abstract
System for generating a pulsed signal of the ultra wideband type, comprising a device for direct digital frequency synthesis (DDS) comprising a phase accumulator (ACCP) able to deliver at a first frequency (Fclk) phases coded on i bits and spaced apart by a phase increment (Δp) differing by a power of two and situated in the vicinity of 2, processing means (MT) able to receive said phases and arranged so as to deliver an amplitude-modulated output signal (SG) whose envelope exhibits a succession of regions respectively delimited by zones of zero amplitude (ZA, ZB), each amplitude-modulated signal part situated in one of said regions forming a pulse of the ultra wideband type (IMP) whose central frequency is equal to said first frequency and whose width depends on the value of the phase increment, and control means (MC) able to regulate the operation of the digital synthesis device so as to selectively deliver one or more pulses of the ultra wideband type.