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:
May. 07, 2019
Filed:
Apr. 10, 2015
Applicant:
National Institute of Information and Communications Technology, Koganei-shi, Tokyo, JP;
Inventors:
Luis Ruben Soares, Koganei, JP;
Ben Puttnam, Kogenei, JP;
Mendinueta Jose Manuel Delgado, Koganei, JP;
Yoshinari Awaji, Koganei, JP;
Naoya Wada, Koganei, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/06 (2006.01); H04B 10/63 (2013.01); H04J 14/04 (2006.01); H04B 10/67 (2013.01); H04B 10/61 (2013.01);
U.S. Cl.
CPC ...
H04B 10/63 (2013.01); H04B 10/614 (2013.01); H04B 10/676 (2013.01); H04J 14/04 (2013.01);
Abstract
A SDH receiver which comprises a first polarization beam splitter, a second polarization beam splitter, a first separator, a second separator, a third separator, a fourth separator, a first 90-degree polarization rotor, a second 90-degree polarization rotor, a first hybrid detector, a second hybrid detector, a third hybrid detector, a fourth hybrid detector, and a signal processor