US Patent 7978390 Optical modulator
Patent 7978390 was granted and assigned to Hitachi on July, 2011 by the United States Patent and Trademark Office.
All edits
Edits on 28 Nov, 2023
Golden AI
Edits made to:
Article (+458 characters)
Article
Patent abstract
The present invention relates to an optical modulator that generates quaternary amplitude modulated light without inter-symbol-interference by splitting input light into three optical paths, generating a continuous wave signal in a first optical path, generating binary phase modulated lights using a single drive MZ type optical phase modulator in second and third optical paths, and interfering them at in-phase and at field amplitude 1:a:b.
Edits on 15 Jul, 2023
Golden AI
Edits made to:
Infobox (+1/-1 properties)
US Patent 07978390 Optical modulator US Patent 7978390 Optical modulator
Infobox
Patent Number
0797839000
Patent Number
797839000
Edits on 28 Apr, 2023
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079783900
Date of Patent
July 12, 2011
0Patent Application Number
124385580
Date Filed
January 11, 2007
0Patent Primary Examiner
Edits on 23 Sep, 2022
Golden AI
Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
079783900
Date of Patent
July 12, 2011
0Patent Application Number
124385580
Date Filed
January 11, 2007
0Patent Primary Examiner
Edits on 8 Dec, 2021
Golden AI
Edits made to:
Infobox (+8 properties)
US Patent 07978390 Optical modulator
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07978390
Date of patent
July 12, 2011
Patent application number
12438558
Date Filed
January 11, 2007
Patent primary examiner
Find more entities like US Patent 7978390 Optical modulator
Use the Golden Query Tool to find similar entities by any field in the Knowledge Graph, including industry, location, and more.
