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:
Oct. 13, 1998

Filed:

Nov. 20, 1996
Applicant:
Inventors:

George E Bodeep, Lawrenceville, GA (US);

Thomas Edward Darcie, Middletown, NJ (US);

Sheryl Leigh Woodward, Holmdel, NJ (US);

Assignee:

AT&T Corp, Middletown, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359167 ; 359125 ; 359191 ;
Abstract

At a central facility, information for a user is converted to a carrierless AM/PM (CAP) signal, upconverted, combined with other upconverted signals destined for other users and transmitted via an analog optical fiber optic line to an optical network unit (ONU) which downconverts the CAP signals without changing their modulation format and places them on the appropriate unshielded twisted line pairs for respective users. If the user is able to receive the optical fiber directly, the ONU can be eliminated. Information may also be transmitted from the users to the central facility using the same transmission lines. Additionally, voiceband channels may be carried on the same transmission lines.


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