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:
May. 21, 2002
Filed:
Sep. 30, 1998
Applicant:
Inventor:
Tim Urry Price, Salt Lake City, UT (US);
Assignee:
3Com Corporation, Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M 1/100 ; H04M 1/00 ; H04M 1/76 ;
U.S. Cl.
CPC ...
H04M 1/100 ; H04M 1/00 ; H04M 1/76 ;
Abstract
A digital access arrangement for (i) isolating downstream components from twisted pair copper wire and (ii) separating upstream and downstream communications channels. The line isolation is performed with relatively small, lightweight components, such as an optical isolation unit for example, and can be operated with signals modulated at relatively high frequencies and having relatively high data rates and amplitudes.