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:
Dec. 26, 2006
Filed:
Feb. 09, 2001
Applicant:
James Russell Thomas, Sandy Spring, MD (US);
Inventor:
James Russell Thomas, Sandy Spring, MD (US);
Assignee:
Comsat Corporation, Bethesda, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03D 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A digitally implemented demodulator (FIG.) produces initial detection estimates () and transition estimates () of symbols sampled in the range lying between 1 and 2 complex samples per symbols of the received carrier (I), (Q). In the case of detection estimate, the second-occurring of the two estimated values is selected as the correct value when there are two samples in the symbol interval. In the case the transition time estimate, the first-occurring of the two estimated values is selected as the correct timing estimate.