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. 17, 2007
Filed:
Oct. 08, 2002
Hiroo Suzuki, Yokohama, JP;
Masamichi Fujiwara, Yokosuka, JP;
Mitsuhiro Teshima, Yokosuka, JP;
Koji Akimoto, Yokosuka, JP;
Shingo Kawai, Yokosuka, JP;
Jun-ichi Kani, Yokohama, JP;
Noboru Takachio, Yokosuka, JP;
Katsumi Iwatsuki, Yokohama, JP;
Hiroo Suzuki, Yokohama, JP;
Masamichi Fujiwara, Yokosuka, JP;
Mitsuhiro Teshima, Yokosuka, JP;
Koji Akimoto, Yokosuka, JP;
Shingo Kawai, Yokosuka, JP;
Jun-ichi Kani, Yokohama, JP;
Noboru Takachio, Yokosuka, JP;
Katsumi Iwatsuki, Yokohama, JP;
Abstract
A first optical fiber transmission path is used to transmit continuous-wave light for upstream signal light from the center node to each of the remote nodes, while a second optical fiber transmission path is used to transmit downstream signal light from the center node to each remote node and to transmit upstream signal light (obtained by modulating continuous-wave light) from each remote node to the center node. In this network, specific wavelength bandwidths are allocated to each remote node for the continuous-wave lights (for upstream signal lights) and the downstream signal lights, and the wavelength bandwidths for the continuous-wave lights (for upstream signal lights) and the downstream signal lights are alternately set.