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:
Sep. 13, 2005
Filed:
Oct. 11, 2001
Applicant:
Masayuki Kashima, Tokyo, JP;
Inventor:
Masayuki Kashima, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J013/02 ;
U.S. Cl.
CPC ...
Abstract
An optical path switching device is provided whereby changeover of optical path can be achieved with higher speed than conventionally. In this optical path switching device, a plurality of despreaders and a plurality of spreaders are connected in a prescribed corresponding relationship, extraction of a desired code path signal from a code division multiplexing signal that is input from an input circuit is performed, by means of despreaders that are capable of code selection and/or setting to OFF, and the extracted code path signal is given a new code by a spreader and output to an output circuit.