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:
Aug. 13, 2013
Filed:
Oct. 05, 2011
Nobuhiko Hattori, Tokyo, JP;
Naoto Nakamura, Tokyo, JP;
Nobuhiko Hattori, Tokyo, JP;
Naoto Nakamura, Tokyo, JP;
Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
[Problem] This invention aims at solving the problem of how a subscriber premises-side optical network unit can be switched to an evaluation mode without the use of a jig board. [Means for Solving the Problem] The invention refers to a subscriber premises-side optical network unit (ONU) which is connected to a center-side optical network unit (OLT) via an optical transmission line (optical fiber) and to an external device (switch) via an electric signal line (electric signal line); comprising a memory (memory switch) the stored content of which can be directly or indirectly rewritten by the external device; a detection part (CPU) for detecting that the content of the memory has been rewritten; and a control part (CPU) for performing, when the detection part detects that the stored content of the memory has been rewritten, a control whereby the optical sending part which sends optical signals to the optical transmission line is put into a continuous light emission state.