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.

Date of Patent:
Jun. 07, 1994

Filed:

Mar. 17, 1992
Applicant:
Inventor:

Junichi Ishiwatari, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04B / ;
U.S. Cl.
CPC ...
359174 ; 359118 ; 359135 ; 359143 ; 359152 ; 359165 ; 359179 ; 370 858 ; 34082508 ;
Abstract

A terminal equipment is connected in a first optical network and connected, via a conductive path, to a predetermined one of a plurality of communication devices connected in a second optical network. The above terminal equipment includes an optical transmitter/receiver unit, a controller for controlling the above predetermined one of the communication devices in order to monitor the communication devices connected in the second optical network, and a selector unit. This selector unit transfers, via a control path coupled to the predetermined one of the communication devices, a poling signal from the first optical network to a specified one of the communication devices addressed by the poling signal, and sends back, to the first optical network, control data which shows a status of the specified one of the communication devices connected in the second optical network and which is received, via the control path, from the specified one of the communication devices.


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