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:
Jun. 02, 2009
Filed:
Jun. 25, 2003
Recoverable reference clock architecture for sonet/sdh and ethernet mixed bidirectional applications
Applicants:
Roberto Gianella, Milan, IT;
Marco DE Angeli, Barzana, IT;
Marco Portinari, Bresso, IT;
Thomas Hamilton, Milpitas, CA (US);
Inventors:
Roberto Gianella, Milan, IT;
Marco De Angeli, Barzana, IT;
Marco Portinari, Bresso, IT;
Thomas Hamilton, Milpitas, CA (US);
Assignee:
Cisco Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 3/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Systems and methods for employing asynchronous transceivers in synchronous data communications. For example, a 10 Gigabit Ethernet transceiver may be used to support SONET/SDH communications with or without G.709 coding. Such a transceiver is clocked with a recovered clock signal when a received synchronous signal is available and with a locally generated clock when no such remotely generated signal is available.