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:
Nov. 29, 2005
Filed:
Nov. 29, 2000
Brian Unitt, Bishops Stortford, GB;
Michael Grant, Bishops Stortford, GB;
Julian Cable, Bishops Stortford, GB;
Lou Pino, Kanata, CA;
Brian Unitt, Bishops Stortford, GB;
Michael Grant, Bishops Stortford, GB;
Julian Cable, Bishops Stortford, GB;
Lou Pino, Kanata, CA;
Nortel Networks Limited, St. Laurent, CA;
Abstract
A method of providing secure multicast over a local access network by means of a network access unit having a channel request vetting function and a permitted channel list. Channel requests from a subscriber are vetted with respect to the permitted channel list and forwarded only if permitted. The permitted list may be dynamically updated under headend control to allow users to subscribe to, and unsubscribe from, services upon request.