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:
Oct. 13, 2009
Filed:
Apr. 03, 2003
John David Porter, Gt. Shelford, GB;
Benedict Russell Freeman, Cambridge, GB;
John David Porter, Gt. Shelford, GB;
Benedict Russell Freeman, Cambridge, GB;
Cambridge Broadband Limited, Cambridge, GB;
Abstract
A packet switched communications system and method for transmitting synchronous data from a source module () to a terminating module () over a network comprising plurality of modules () interconnected via transmission links (). Each module operates with a clock of nominal frequency that is not synchronized with the clocks of the other module(s) and has a single input and one or more outputs. The method includes determining the phase difference between the input clock and the output clock of each module, and transmitting the phase difference to the terminating module () in the network. The received accumulated phase difference at the terminating module () is used to lock the output clock at the terminating module to the input clock at the source module.