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:
Jan. 15, 2019
Filed:
Nov. 26, 2015
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Masahiro Yokota, Tokyo, JP;
Takafumi Hamano, Tokyo, JP;
Takashi Kotanigawa, Tokyo, JP;
Kaoru Arai, Tokyo, JP;
Kei Kitamura, Tokyo, JP;
Hideki Maeda, Tokyo, JP;
Yoshiaki Yamada, Yokosuka, JP;
Takuya Ohara, Yokosuka, JP;
Kengo Shintaku, Yokosuka, JP;
Nippon Telegraph And Telephone Corporation, Tokyo, JP;
Abstract
A framer in a transmission device that allocates time slots of an optical channel to a logical path, divides client signals received via the logical path to the time slots allocated to the logical path, and transmits the client signals by a plurality of optical subcarriers using optical wavelengths correlated with the time slots includes: a time slot allocating unit configured to perform a process of reducing a transmission band of the logical path when some of the optical wavelengths are unavailable and changing the time slots allocated to the logical path depending on the reduced transmission band to avoid using the time slots corresponding to the unavailable optical wavelengths.