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. 07, 1990
Filed:
Mar. 13, 1989
Applicant:
Inventor:
John J Schembri, Danville, CA (US);
Assignee:
Pacific Bell, San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02F / ; H04B / ;
U.S. Cl.
CPC ...
350 9616 ; 350 9620 ; 350 9621 ; 350 9622 ; 350320 ; 455606 ; 455612 ; 455617 ; 370-3 ;
Abstract
A method and apparatus are disclosed for providing a fiber optic distribution network between a central office and a group of users generally in a localized area. The apparatus utilizes a continuous optical fiber primary loop in communication with the central office and passing in the vicinity of each user. Each user is connected to an optical fiber in the primary loop in a manner which provides protection against breaks in the primary loop. Embodiments of the apparatus in which a plurality of users are connected to a single optical are also disclosed.