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. 28, 1998
Filed:
Dec. 27, 1996
Applicant:
Inventors:
Joseph Boccuzzi, Brooklyn, NY (US);
Paul Petrus, Blacksburg, VA (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
329304 ; 329310 ; 375283 ; 375330 ; 375324 ;
Abstract
A reduced complexity maximum likelihood multiple symbol differential detector which utilizes a maximum likelihood sequence estimation of the transmitted phase and does so by expanding the observation window to observe the received symbol over N signal intervals and making a simultaneous decision on N-1 symbols. The phase of the received signal is calculated up front and thus the detector requires only real subtractions and real additions as opposed to complex multiplications and additions. Furthermore, the detector does not sacrifice performance over conventional prior art detectors.