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.

Date of Patent:
Feb. 09, 1993

Filed:

May. 12, 1989
Applicant:
Inventors:

Raymond E Tyrrell, Raleigh, NC (US);

O Lamar Bishop, Raleigh, NC (US);

William E Powell, Raleigh, NC (US);

Dale L Krisher, Raleigh, NC (US);

William H Stephenson, Raleigh, NC (US);

M Rodney Briscoe, Raleigh, NC (US);

Hal A Thorne, Wendell, NC (US);

Claude M Hurlocker, Raleigh, NC (US);

V Paul Runyon, Raleigh, NC (US);

Timothy J Williams, Raleigh, NC (US);

Joseph E Sutherland, Raleigh, NC (US);

William B Weeber, Apex, NC (US);

Michael J Gingell, Raleigh, NC (US);

Kenneth J Stoia, Raleigh, NC (US);

William J Fox, Raleigh, NC (US);

Jeffrey P Jones, Raleigh, NC (US);

Richard M Czerwiec, Raleigh, NC (US);

Ertugrul Baydar, Raleigh, NC (US);

Heinrich T Sonnenberg, Raleigh, NC (US);

Richard Peters, Raleigh, NC (US);

Gus C Sanders, Raleigh, NC (US);

Richard J Sanders, Jr, Raleigh, NC (US);

Francis G Noser, Raleigh, NC (US);

Joseph L Smith, Raleigh, NC (US);

Jak Yaemsiri, Raleigh, NC (US);

Camille A Abu-Saba, Clayton, NC (US);

Patrick M Farrell, Raleigh, NC (US);

Wenkwei Rou, Phoenix, AZ (US);

Victor W Wilkerson, Durham, NC (US);

Mohammad S Arani, Raleigh, NC (US);

Stephen C Dunning, Cary, NC (US);

Keith Bernhardt, Raleigh, NC (US);

Dana Merrill, Raleigh, NC (US);

Michael Sutton, Raleigh, NC (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; G02F / ;
U.S. Cl.
CPC ...
370 55 ; 370 84 ; 359136 ;
Abstract

A synchronous optical transmission system for interfacing SONET formatted channels to lower speed channels in either a SONET format or otherwise. The transmission system incorporates a fiber transmission system, terminal multiplexers and add/drop multiplexers that in turn incorporate a plurality of features, such as parallel scrambling circuitry, frame synchronization circuitry and the like.


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