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:
Apr. 28, 1992
Filed:
May. 11, 1989
Applicant:
Inventor:
Oliver F McDonald, East Orange, NJ (US);
Assignee:
Bell Telephone Laboratories, Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
375 85 ; 455137 ; 375100 ;
Abstract
A diversity receiving system for a differential phase shift keyed digital signal having symbols occurring in successive time periods comprises at least one antenna and a plurality of receiving branches. Each receive branch operates on a different version of the digital signal and detects different type prescribed components of the phase difference between successive symbols of the branch version. A detected prescribed component of the phase difference of each type is formed for each successive time period by processing the same type detected prescribed phase difference component signals from the receive branches.