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:
Dec. 31, 1996
Filed:
Jan. 27, 1995
Applicant:
Inventor:
Paul May, Abingdon, GB;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04B / ;
U.S. Cl.
CPC ...
359124 ; 359133 ; 359180 ;
Abstract
An optical transmission system comprises a plurality of mode-locked diode lasers each providing an output pulse at a different respective sub-carrier frequency. Means are provided for modulating each sub-carrier in response to respective input signals for providing a plurality of optical signals for transmission. A reference sub-carrier having a frequency such that the intervals between the reference sub-carrier frequency of each of the respective signal carrying sub-carrier channel frequencies is distinguishable from the intervals between respective signal carrying sub-carrier channels.