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. 28, 2002
Filed:
Mar. 19, 1998
Applicant:
Inventors:
Kevin Smith, Erwarton, GB;
Julian Kazimierz Lucek, Ipswich, GB;
Danny Robert Pitcher, Ipswich, GB;
Terrence Widdowson, Ipswich, GB;
David Graham Moodie, Ipswich, GB;
Andrew David Ellis, Ipswich, GB;
Assignee:
British Telecommunications plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/000 ; H04B 1/012 ; H04B 1/018 ;
U.S. Cl.
CPC ...
H04B 1/000 ; H04B 1/012 ; H04B 1/018 ;
Abstract
An optical network includes a number of nodes coupled to an optical transmission medium, such as an optical fiber bus. Each of the nodes includes a dark pulse generator. Different nodes output dark pulses in different time slots onto the transmission medium, forming a dark pulse OTDM (optical time division multiplexed) signal. The network may have a re-entrant bus topology.