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:
Jul. 24, 2018
Filed:
Apr. 25, 2012
Applicants:
Hung-chang Chien, Rockaway, NJ (US);
Jianjun Yu, Basking Ridge, NJ (US);
Inventors:
Hung-Chang Chien, Rockaway, NJ (US);
Jianjun Yu, Basking Ridge, NJ (US);
Assignees:
ZTE CORPORATION (CHINA), Shenzhen, CN;
ZTB (USA) Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/04 (2006.01); H04B 10/548 (2013.01);
U.S. Cl.
CPC ...
H04B 10/548 (2013.01);
Abstract
A method and apparatus for generating sub-carriers is disclosed. Coherent optical sub-carriers with sub-carrier spacing are generated for carrying an orthogonal frequency division multiplexed (OFDM) signal. Multiple peaks are generated by cascading multiple phase modulators driven by different radio frequency sources.