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:
Mar. 10, 2009
Filed:
Mar. 29, 2005
Noël Dimarcq, Etampes, FR;
Stéphane Guerandel, Sceaux, FR;
Thomas Zanon, Paris, FR;
David Holleville, Paris, FR;
Noël Dimarcq, Etampes, FR;
Stéphane Guerandel, Sceaux, FR;
Thomas Zanon, Paris, FR;
David Holleville, Paris, FR;
Abstract
Method for modulating an atomic clock signal and a corresponding atomic clock. The laser beams (L, L) are pulse-modulated in amplitude to illuminate (A) an interactive medium. A detection (B) of the current pulse (Sr) and of the pulses (Sr−1 to Sr−p) preceding said current impulsion is performed. The pulses are superimposed (C) by linear combination to generate a compensated atomic clock signal (SHC) whereof the spectral width is minimized. The invention is applicable to atomic clocks with pulsed interrogation whereof the interactive medium consists of thermal or laser-cooled atoms.