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:
May. 05, 1987
Filed:
Apr. 05, 1985
Applicant:
Inventor:
Toshihiko Ryu, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375100 ; 375 40 ; 375 84 ; 455133 ; 371 68 ;
Abstract
A diversity system of the selection type for correcting phase ambiguities among a plurality of differentially encoded digital signals while retaining the digital encoding of those signals. With this system, no differential decoding/encoding means are needed in relay units of the system. Thus, differentially encoded digital signals may be sent through relay systems containing error correcting MODEMs without the additional complication of differential decoding/encoding circuitry.