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, 2011
Filed:
Feb. 09, 2005
Ran M. Oz, Modiin, IL;
Ran M. Oz, Modiin, IL;
Bigband Networks, Inc., Redwood City, CA (US);
Abstract
The invention provides a system and a method for synchronizing cable modems, the method includes the stages of: (i) generating, at a media access control entity, synchronization messages; and (ii) updating the synchronization messages to provide updated synchronization messages, whereas the updating is responsive to delays introduced at least during a stage of multiplexing the updated synchronization messages and additional content. The invention provides a system and a method of encrypting a data stream, the method includes the stages of: (i) receiving, at a multiplexing entity, at least one data stream destined to at least one cable modem; (ii) receiving, at the multiplexing entity, at least one encryption key generated by a cable modem termination system, whereas each encryption key is associated with at least one cable modem; and (iii) encrypting at least one data stream with at least one encryption key associated with the at least one cable modem.