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:
Aug. 23, 1994

Filed:

Nov. 14, 1991
Applicant:
Inventors:

Shuji Suzuki, Tokyo, JP;

Makoto Nishio, Tokyo, JP;

Assignee:

Nec Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04J / ;
U.S. Cl.
CPC ...
359117 ; 359128 ; 359139 ; 370 581 ; 370 601 ; 370 941 ;
Abstract

In an optical self-muting network, N optical splitters are associated respectively, with N inlet terminals for splitting an optical signal from the associated inlet terminal into M replicas of the optical signal. M optical combiners, associated respectively with M outlet terminals, combines N optical signals incident thereon into a combined optical signal and couples it to the associated outlet terminal. M sets of N optical gates are connected between the N optical splitters and the M optical combiners. Each optical gate allows passage of an optical signal incident thereon when it timely coincides with an electrical signal applied thereto. A controller supplies a gate control electrical signal to the optical gates of each set during M successive intervals. Contention between optical packets simultaneously incident on the optical gates of the same set is resolved by the controller.


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