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. 11, 2017
Filed:
Jan. 15, 2014
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Koichi Ishihara, Yokosuka, JP;
Masato Mizoguchi, Yokosuka, JP;
Tomoki Murakami, Yokosuka, JP;
Tomoyoshi Kataoka, Yokosuka, JP;
Yoshiaki Kisaka, Yokosuka, JP;
Tadao Nakagawa, Yokosuka, JP;
Etsushi Yamazaki, Yokosuka, JP;
Seiji Okamoto, Yokosuka, JP;
Kengo Horikoshi, Yokosuka, JP;
Masahito Tomizawa, Yokosuka, JP;
Riichi Kudo, Yokosuka, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
The estimation of an amount of chromatic dispersion using a training signal sequence is possible. A transmission method includes: a training signal sequence generation step of generating, as training signal sequences, a plurality of signal sequences having power concentrated in a plurality of frequency bands, the power concentrated at different frequency bands; a training signal sequence selection step of selecting at least one training signal sequence from among the plurality of training signal sequences generated in the training signal sequence generation step, a signal multiplexing step of generating a signal sequence obtained by time-division multiplexing the training signal sequence selected in the training signal sequence selection step with a transmission data sequence, and an electrical-to-optical conversion step of transmitting the signal sequence generated in the signal multiplexing step as an optical signal.