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:
Apr. 29, 2014
Filed:
Dec. 17, 2004
Hungkei Keith Chow, Scotch Plains, NJ (US);
Manyalibo Joseph Matthews, Jersey City, NJ (US);
Dusan Suvakovic, Marina Del Rey, CA (US);
Doutje T. Van Veen, Berkeley Heights, NJ (US);
Hungkei Keith Chow, Scotch Plains, NJ (US);
Manyalibo Joseph Matthews, Jersey City, NJ (US);
Dusan Suvakovic, Marina Del Rey, CA (US);
Doutje T. Van Veen, Berkeley Heights, NJ (US);
Alcatel Lucent, Paris, FR;
Abstract
Systems and techniques for multiple bit rate optical data transmission. A passive optical network includes an optical line termination unit (OLT) connected to one or more optical network units (ONUs) by optical elements. The OLT is capable of performing downstream transmission to the ONUs at each of a variety of different bit rates, and each ONU performs upstream transmission at one or more bit rates. The OLT can sense a bit rate of a received transmission and change its operation so as to receive and process the transmission exhibiting the sensed bit rate. Each of the ONUs receives and processes downstream transmissions at one or more bit rates, but each ONU is capable of maintaining a phase and frequency lock to downstream transmissions at all bit rates supported by the OLT. One or more of the ONUs may also receive and process downstream transmissions exhibiting different or changed bit rates.