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:
Apr. 20, 2010
Filed:
Apr. 27, 2007
Naoki Minato, Tokyo, JP;
Naoki Minato, Tokyo, JP;
Oki Electric Industry Co., Ltd., Tokyo, JP;
Abstract
The present invention is an optical multiplex communication system in which an optical wavelength division channel and an optical code division channel can coexist, wherein a WDM channel sectionhas a wavelength demultiplexerand WDM channels Wto W. An optical pulse string-is demultiplexed by the wavelength demultiplexer, and for channel W, an optical pulsewith wavelength λis input to an intensity modulatorand converted into an optical pulse signal of channel W, and is output as a wavelength division optical pulse signal, where transmission information of channel Wis reflected. An optical delay unitprovides a required time delay to a wavelength division optical pulse signal, so as to not match a position of an optical pulse constituting a wavelength division optical pulse signalon a time base, and a position of a chip pulse constituting an encoded optical pulse signal which comes from an OCDM channel, and has a same wavelength as this optical pulse, on a time base.