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:
Aug. 17, 2010
Filed:
Dec. 13, 2005
Jochen Pliquett, Munich, DE;
Thomas Reichert, Munich, DE;
Jochen Pliquett, Munich, DE;
Thomas Reichert, Munich, DE;
Rohde & Schwarz GmbH & Co. KG, Munich, DE;
Abstract
A method for clock synchronisation between an amplitude-modulated or phase-modulated received signal (r(t)) and a transmitted signal (s(t)) estimates the timing offset (ε) between the received signal (r(t)) and the transmitted signal (s(t)) by means of a maximum-likelihood method. The maximum-likelihood method in this context is realised by an estimation filtering (S; S) dependent upon the transmission characteristic, a subsequent nonlinear signal-processing function (S; S) and an averaging filtering (S, S; S, S). The received signal (r(t)) is especially a modified vestigial-sideband-modulated received signal (r'(t)). The nonlinear signal-processing function (S; S) maintains the alternating component in the spectrum of the pre-filtered vestigial-sideband-modulated received signal (v′(t)).