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. 07, 2014
Filed:
Nov. 14, 2007
Toshiki Tanaka, Kawasaki, JP;
Hisao Nakashima, Kawasaki, JP;
Takeshi Hoshida, Kawasaki, JP;
Toru Katagiri, Kawasaki, KR;
Hiroki Ooi, Kawasaki, JP;
Akira Miura, Kawasaki, JP;
Toshiki Tanaka, Kawasaki, JP;
Hisao Nakashima, Kawasaki, JP;
Takeshi Hoshida, Kawasaki, JP;
Toru Katagiri, Kawasaki, KR;
Hiroki Ooi, Kawasaki, JP;
Akira Miura, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical transmitter is provided for transmitting a wavelength multiplexed signal comprising an intensity modulation optical signal and a phase modulation optical signal through a transmission line. The optical transmitter includes a bit time difference given signal generator for generating at least two optical signals having a bit time difference therebetween, from the wavelength multiplexed signal. The optical transmitter further includes a wavelength multiplexed signal output unit to which at least two optical signals are input from the bit time difference given signal generator, and which generates and outputs a wavelength multiplexed signal in which the bit time difference was given between the phase modulation optical signal and the phase modulation optical signal.