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:
Feb. 23, 1999
Filed:
Dec. 17, 1996
Akira Sugiyama, Sapporo, JP;
Izumi Yokota, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An RZ (return-to-zero) signal mode is adopted as a transmission coding format, whereby the effect of cross phase modulation is suppressed. The duty factor of each of signal light waves is allowed to vary at a digital signal processing stage, whereby the average power levels of the signal light waves are controlled so as to become constant in an optical repeater, with the result that the peak power levels of the signal light waves are allowed to vary. In consequence, the transmission characteristics of the signal light waves can be varied.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile