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:
Jul. 04, 2006
Filed:
Sep. 13, 2001
Subrahmanyam Dravida, Shrewsbury, MA (US);
Dev V Gupta, Concord, MA (US);
Frederick Peralta, Lynn, MA (US);
Kiran M Rege, Marlboro, NJ (US);
Manas Tandon, Waltham, MA (US);
Subrahmanyam Dravida, Shrewsbury, MA (US);
Dev V Gupta, Concord, MA (US);
Frederick Peralta, Lynn, MA (US);
Kiran M Rege, Marlboro, NJ (US);
Manas Tandon, Waltham, MA (US);
Narad Networks, Inc., Westford, MA (US);
Abstract
Hybrid fiber/coax networks employ the existing cable plant used for cable TV and transmit data signals in a frequency bandwidth above that which is used for cable TV. The present system used point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bi-directional broadband access. Digital signals are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. The intelligent network elements can be co-located with or replace the standard network elements. A tree-and-branch network architecture is therefore established in which each intelligent network element is assigned a routing ID employed in the point-to-point transmissions while leaving legacy analog signals unimpeded. In this manner, the data links are made over relatively short runs of coax cable, which can provide greater bandwidth.