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. 09, 2018
Filed:
Jul. 10, 2015
Applicant:
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Inventor:
Futoshi Izumi, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 14/02 (2006.01); H04Q 11/00 (2006.01); G02F 1/35 (2006.01); H04B 10/04 (2006.01); H04B 10/06 (2006.01); H04B 10/291 (2013.01);
U.S. Cl.
CPC ...
H04J 14/02 (2013.01); G02F 1/353 (2013.01); H04B 10/291 (2013.01); H04Q 11/0005 (2013.01); G02F 2203/585 (2013.01); H04Q 2011/0011 (2013.01); H04Q 2011/0016 (2013.01);
Abstract
A frequency conversion device includes: an optical convertor configured to convert a source modulated light into an unmodulated light; and a frequency convertor configured to use the unmodulated light converted by the optical convertor as a reference light and convert the source modulated light into a modulated light that has a desirable frequency.