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. 21, 2006
Filed:
Mar. 26, 2002
Michael Parr, Del Mar, CA (US);
Sharath Ananth, San Diego, CA (US);
Long Huynh, San Diego, CA (US);
Drew Barnett, La Jolla, CA (US);
Fred Harris, Lemon Grove, CA (US);
Michael Parr, Del Mar, CA (US);
Sharath Ananth, San Diego, CA (US);
Long Huynh, San Diego, CA (US);
Drew Barnett, La Jolla, CA (US);
Fred Harris, Lemon Grove, CA (US);
Hughes Network Systems, LLC, Germantown, MD (US);
Abstract
Filtering loop and method for maintaining synchronization between a receiver and a transmitter reduces overhead and enables more robust operation. The method includes the step of receiving an error signal corresponding to a synchronization parameter. A first order filter is applied to the error signal such that a residual signal results. The method further provides for compensating the residual signal for drift such that the compensated residual signal estimates a rate of change in the residual signal. By compensating the residual signal for drift, difficulties associated with time lag and signal degradation are obviated.